diff options
| author | N. Engelhardt <nak@symbioticeda.com> | 2020-01-03 12:28:48 +0100 |
|---|---|---|
| committer | N. Engelhardt <nak@symbioticeda.com> | 2020-01-03 12:28:48 +0100 |
| commit | 341fd872b59e8f95aa14afd9f17225d2c03a4283 (patch) | |
| tree | 21802e73ca767d124971d43d3f78d9f4cf7d62e2 | |
| parent | c8bc1793a4e8230c29fca4a34862414e8ab8722b (diff) | |
| parent | f8d5920a7e61f78873b7bf49dd7e8f3a83f7adf3 (diff) | |
| download | yosys-341fd872b59e8f95aa14afd9f17225d2c03a4283.tar.gz yosys-341fd872b59e8f95aa14afd9f17225d2c03a4283.tar.bz2 yosys-341fd872b59e8f95aa14afd9f17225d2c03a4283.zip | |
Merge branch 'master' of https://github.com/YosysHQ/yosys into abc_scratchpad_script
122 files changed, 4372 insertions, 694 deletions
@@ -50,9 +50,13 @@ Yosys 0.9 .. Yosys 0.9-dev - "synth_ecp5" to now infer DSP blocks (-nodsp to disable, experimental) - "synth_ice40 -dsp" to infer DSP blocks - Added latch support to synth_xilinx + - Added support for flip-flops with synchronous reset to synth_xilinx + - Added support for flip-flops with reset and enable to synth_xilinx - Added "check -mapped" - Added checking of SystemVerilog always block types (always_comb, always_latch and always_ff) + - Added "xilinx_dffopt" pass + - Added "scratchpad" pass Yosys 0.8 .. Yosys 0.9 ---------------------- @@ -152,7 +152,15 @@ ifeq ($(ENABLE_PYOSYS),1) PYTHON_VERSION_TESTCODE := "import sys;t='{v[0]}.{v[1]}'.format(v=list(sys.version_info[:2]));print(t)" PYTHON_VERSION := $(shell $(PYTHON_EXECUTABLE) -c ""$(PYTHON_VERSION_TESTCODE)"") PYTHON_MAJOR_VERSION := $(shell echo $(PYTHON_VERSION) | cut -f1 -d.) -PYTHON_PREFIX := $(shell $(PYTHON_EXECUTABLE)-config --prefix) + +ENABLE_PYTHON_CONFIG_EMBED ?= $(shell $(PYTHON_EXECUTABLE)-config --embed --libs > /dev/null && echo 1) +ifeq ($(ENABLE_PYTHON_CONFIG_EMBED),1) +PYTHON_CONFIG := $(PYTHON_EXECUTABLE)-config --embed +else +PYTHON_CONFIG := $(PYTHON_EXECUTABLE)-config +endif + +PYTHON_PREFIX := $(shell $(PYTHON_CONFIG) --prefix) PYTHON_DESTDIR := $(PYTHON_PREFIX)/lib/python$(PYTHON_VERSION)/site-packages # Reload Makefile.conf to override python specific variables if defined @@ -305,17 +313,17 @@ ifeq ($(ENABLE_PYOSYS),1) #Detect name of boost_python library. Some distros usbe boost_python-py<version>, other boost_python<version>, some only use the major version number, some a concatenation of major and minor version numbers ifeq ($(OS), Darwin) BOOST_PYTHON_LIB ?= $(shell \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_EXECUTABLE)-config --ldflags) -lboost_python-py$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_EXECUTABLE)-config --ldflags) -lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_EXECUTABLE)-config --ldflags) -lboost_python$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_EXECUTABLE)-config --ldflags) -lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_CONFIG) --ldflags) -lboost_python-py$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_CONFIG) --ldflags) -lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_CONFIG) --ldflags) -lboost_python$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null $(shell $(PYTHON_CONFIG) --ldflags) -lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ echo ""; fi; fi; fi; fi;) else BOOST_PYTHON_LIB ?= $(shell \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_EXECUTABLE)-config --libs` -lboost_python-py$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_EXECUTABLE)-config --libs` -lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_EXECUTABLE)-config --libs` -lboost_python$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_VERSION))"; else \ - if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_EXECUTABLE)-config --libs` -lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_CONFIG) --libs` -lboost_python-py$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_CONFIG) --libs` -lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python-py$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_CONFIG) --libs` -lboost_python$(subst .,,$(PYTHON_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_VERSION))"; else \ + if echo "int main(int argc, char ** argv) {return 0;}" | $(CXX) -xc -o /dev/null `$(PYTHON_CONFIG) --libs` -lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION)) - > /dev/null 2>&1; then echo "-lboost_python$(subst .,,$(PYTHON_MAJOR_VERSION))"; else \ echo ""; fi; fi; fi; fi;) endif @@ -325,19 +333,19 @@ endif ifeq ($(OS), Darwin) ifeq ($(PYTHON_MAJOR_VERSION),3) -LDLIBS += $(shell $(PYTHON_EXECUTABLE)-config --ldflags) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem -CXXFLAGS += $(shell $(PYTHON_EXECUTABLE)-config --includes) -DWITH_PYTHON +LDLIBS += $(shell $(PYTHON_CONFIG) --ldflags) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem +CXXFLAGS += $(shell $(PYTHON_CONFIG) --includes) -DWITH_PYTHON else -LDLIBS += $(shell $(PYTHON_EXECUTABLE)-config --ldflags) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem -CXXFLAGS += $(shell $(PYTHON_EXECUTABLE)-config --includes) -DWITH_PYTHON +LDLIBS += $(shell $(PYTHON_CONFIG) --ldflags) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem +CXXFLAGS += $(shell $(PYTHON_CONFIG) --includes) -DWITH_PYTHON endif else ifeq ($(PYTHON_MAJOR_VERSION),3) -LDLIBS += $(shell $(PYTHON_EXECUTABLE)-config --libs) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem -CXXFLAGS += $(shell $(PYTHON_EXECUTABLE)-config --includes) -DWITH_PYTHON +LDLIBS += $(shell $(PYTHON_CONFIG) --libs) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem +CXXFLAGS += $(shell $(PYTHON_CONFIG) --includes) -DWITH_PYTHON else -LDLIBS += $(shell $(PYTHON_EXECUTABLE)-config --libs) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem -CXXFLAGS += $(shell $(PYTHON_EXECUTABLE)-config --includes) -DWITH_PYTHON +LDLIBS += $(shell $(PYTHON_CONFIG) --libs) $(BOOST_PYTHON_LIB) -lboost_system -lboost_filesystem +CXXFLAGS += $(shell $(PYTHON_CONFIG) --includes) -DWITH_PYTHON endif endif @@ -454,10 +454,10 @@ Verilog Attributes and non-standard features expressions over parameters and constant values are allowed). The intended use for this is synthesis-time DRC. -- There is limited support for converting specify .. endspecify statements to - special ``$specify2``, ``$specify3``, and ``$specrule`` cells, for use in - blackboxes and whiteboxes. Use ``read_verilog -specify`` to enable this - functionality. (By default specify .. endspecify blocks are ignored.) +- There is limited support for converting ``specify`` .. ``endspecify`` + statements to special ``$specify2``, ``$specify3``, and ``$specrule`` cells, + for use in blackboxes and whiteboxes. Use ``read_verilog -specify`` to + enable this functionality. (By default these blocks are ignored.) Non-standard or SystemVerilog features for formal verification diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc index 627133314..445103771 100644 --- a/backends/aiger/xaiger.cc +++ b/backends/aiger/xaiger.cc @@ -81,8 +81,7 @@ struct XAigerWriter pool<SigBit> input_bits, output_bits; dict<SigBit, SigBit> not_map, alias_map; dict<SigBit, pair<SigBit, SigBit>> and_map; - vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int>> ci_bits; - vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int,int>> co_bits; + vector<SigBit> ci_bits, co_bits; dict<SigBit, float> arrival_times; vector<pair<int, int>> aig_gates; @@ -367,7 +366,6 @@ struct XAigerWriter cell->setPort(port_name, rhs); } - int offset = 0; for (auto b : rhs.bits()) { SigBit I = sigmap(b); if (b == RTLIL::Sx) @@ -378,7 +376,7 @@ struct XAigerWriter else alias_map[b] = I; } - co_bits.emplace_back(b, cell, port_name, offset++, 0); + co_bits.emplace_back(b); unused_bits.erase(b); } } @@ -398,9 +396,8 @@ struct XAigerWriter cell->setPort(port_name, rhs); } - int offset = 0; for (const auto &b : rhs.bits()) { - ci_bits.emplace_back(b, cell, port_name, offset++); + ci_bits.emplace_back(b); SigBit O = sigmap(b); if (O != b) alias_map[O] = b; @@ -487,15 +484,13 @@ struct XAigerWriter aig_map[bit] = 2*aig_m; } - for (auto &c : ci_bits) { - RTLIL::SigBit bit = std::get<0>(c); + for (auto bit : ci_bits) { aig_m++, aig_i++; aig_map[bit] = 2*aig_m; } - for (auto &c : co_bits) { - RTLIL::SigBit bit = std::get<0>(c); - std::get<4>(c) = ordered_outputs[bit] = aig_o++; + for (auto bit : co_bits) { + ordered_outputs[bit] = aig_o++; aig_outputs.push_back(bit2aig(bit)); } @@ -508,7 +503,6 @@ struct XAigerWriter ordered_outputs[bit] = aig_o++; aig_outputs.push_back(bit2aig(bit)); } - } void write_aiger(std::ostream &f, bool ascii_mode) @@ -605,25 +599,46 @@ struct XAigerWriter RTLIL::Module *holes_module = module->design->addModule("$__holes__"); log_assert(holes_module); + dict<IdString, Cell*> cell_cache; + int port_id = 1; int box_count = 0; for (auto cell : box_list) { - RTLIL::Module* box_module = module->design->module(cell->type); + RTLIL::Module* orig_box_module = module->design->module(cell->type); + log_assert(orig_box_module); + IdString derived_name = orig_box_module->derive(module->design, cell->parameters); + RTLIL::Module* box_module = module->design->module(derived_name); + if (box_module->has_processes()) + log_error("ABC9 box '%s' contains processes!\n", box_module->name.c_str()); + int box_inputs = 0, box_outputs = 0; - Cell *holes_cell = nullptr; - if (box_module->get_bool_attribute("\\whitebox")) { + auto r = cell_cache.insert(std::make_pair(derived_name, nullptr)); + Cell *holes_cell = r.first->second; + if (r.second && box_module->get_bool_attribute("\\whitebox")) { holes_cell = holes_module->addCell(cell->name, cell->type); holes_cell->parameters = cell->parameters; + r.first->second = holes_cell; + + // Since Module::derive() will create a new module, there + // is a chance that the ports will be alphabetically ordered + // again, which is a problem when carry-chains are involved. + // Inherit the port ordering from the original module here... + // (and set the port_id below, when iterating through those) + log_assert(GetSize(box_module->ports) == GetSize(orig_box_module->ports)); + box_module->ports = orig_box_module->ports; } // NB: Assume box_module->ports are sorted alphabetically // (as RTLIL::Module::fixup_ports() would do) + int box_port_id = 1; for (const auto &port_name : box_module->ports) { RTLIL::Wire *w = box_module->wire(port_name); log_assert(w); + if (r.second) + w->port_id = box_port_id++; RTLIL::Wire *holes_wire; - RTLIL::SigSpec port_wire; - if (w->port_input) { + RTLIL::SigSpec port_sig; + if (w->port_input) for (int i = 0; i < GetSize(w); i++) { box_inputs++; holes_wire = holes_module->wire(stringf("\\i%d", box_inputs)); @@ -634,28 +649,29 @@ struct XAigerWriter holes_module->ports.push_back(holes_wire->name); } if (holes_cell) - port_wire.append(holes_wire); + port_sig.append(holes_wire); } - if (!port_wire.empty()) - holes_cell->setPort(w->name, port_wire); - } if (w->port_output) { box_outputs += GetSize(w); for (int i = 0; i < GetSize(w); i++) { if (GetSize(w) == 1) - holes_wire = holes_module->addWire(stringf("%s.%s", cell->name.c_str(), w->name.c_str())); + holes_wire = holes_module->addWire(stringf("%s.%s", cell->name.c_str(), log_id(w->name))); else - holes_wire = holes_module->addWire(stringf("%s.%s[%d]", cell->name.c_str(), w->name.c_str(), i)); + holes_wire = holes_module->addWire(stringf("%s.%s[%d]", cell->name.c_str(), log_id(w->name), i)); holes_wire->port_output = true; holes_wire->port_id = port_id++; holes_module->ports.push_back(holes_wire->name); if (holes_cell) - port_wire.append(holes_wire); + port_sig.append(holes_wire); else holes_module->connect(holes_wire, State::S0); } - if (!port_wire.empty()) - holes_cell->setPort(w->name, port_wire); + } + if (!port_sig.empty()) { + if (r.second) + holes_cell->setPort(w->name, port_sig); + else + holes_module->connect(holes_cell->getPort(w->name), port_sig); } } @@ -685,14 +701,11 @@ struct XAigerWriter RTLIL::Selection& sel = holes_module->design->selection_stack.back(); sel.select(holes_module); - // TODO: Should not need to opt_merge if we only instantiate - // each box type once... - Pass::call(holes_module->design, "opt_merge -share_all"); - Pass::call(holes_module->design, "flatten -wb"); - // TODO: Should techmap/aigmap/check all lib_whitebox-es just once, - // instead of per write_xaiger call + // Cannot techmap/aigmap/check all lib_whitebox-es outside of write_xaiger + // since boxes may contain parameters in which case `flatten` would have + // created a new $paramod ... Pass::call(holes_module->design, "techmap"); Pass::call(holes_module->design, "aigmap"); for (auto cell : holes_module->cells()) diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index 44fd32cdc..b94a8d710 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -1198,6 +1198,14 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, varbuf = new AstNode(AST_LOCALPARAM, varbuf); varbuf->str = init_ast->children[0]->str; + auto resolved = current_scope.at(init_ast->children[0]->str); + if (resolved->range_valid) { + varbuf->range_left = resolved->range_left; + varbuf->range_right = resolved->range_right; + varbuf->range_swapped = resolved->range_swapped; + varbuf->range_valid = resolved->range_valid; + } + AstNode *backup_scope_varbuf = current_scope[varbuf->str]; current_scope[varbuf->str] = varbuf; @@ -2998,6 +3006,14 @@ void AstNode::expand_genblock(std::string index_var, std::string prefix, std::ma current_ast_mod->children.push_back(p); str = p->str; id2ast = p; + + auto resolved = current_scope.at(index_var); + if (resolved->range_valid) { + p->range_left = resolved->range_left; + p->range_right = resolved->range_right; + p->range_swapped = resolved->range_swapped; + p->range_valid = resolved->range_valid; + } } } diff --git a/frontends/verific/README b/frontends/verific/README index 89584f2e8..c37d76343 100644 --- a/frontends/verific/README +++ b/frontends/verific/README @@ -1,7 +1,11 @@ - This directory contains Verific bindings for Yosys. -See http://www.verific.com/ for details. + +Use Symbiotic EDA Suite if you need Yosys+Verifc. +https://www.symbioticeda.com/seda-suite + +Contact office@symbioticeda.com for free evaluation +binaries of Symbiotic EDA Suite. Verific Features that should be enabled in your Verific library diff --git a/frontends/verific/verific.cc b/frontends/verific/verific.cc index 843e7b9b4..9274cf5ca 100644 --- a/frontends/verific/verific.cc +++ b/frontends/verific/verific.cc @@ -2065,7 +2065,12 @@ struct VerificPass : public Pass { log(" -d <dump_file>\n"); log(" Dump the Verific netlist as a verilog file.\n"); log("\n"); - log("Visit http://verific.com/ for more information on Verific.\n"); + log("\n"); + log("Use Symbiotic EDA Suite if you need Yosys+Verifc.\n"); + log("https://www.symbioticeda.com/seda-suite\n"); + log("\n"); + log("Contact office@symbioticeda.com for free evaluation\n"); + log("binaries of Symbiotic EDA Suite.\n"); log("\n"); } #ifdef YOSYS_ENABLE_VERIFIC @@ -2074,7 +2079,13 @@ struct VerificPass : public Pass { static bool set_verific_global_flags = true; if (check_noverific_env()) - log_cmd_error("This version of Yosys is built without Verific support.\n"); + log_cmd_error("This version of Yosys is built without Verific support.\n" + "\n" + "Use Symbiotic EDA Suite if you need Yosys+Verifc.\n" + "https://www.symbioticeda.com/seda-suite\n" + "\n" + "Contact office@symbioticeda.com for free evaluation\n" + "binaries of Symbiotic EDA Suite.\n"); log_header(design, "Executing VERIFIC (loading SystemVerilog and VHDL designs using Verific).\n"); @@ -2493,7 +2504,13 @@ struct VerificPass : public Pass { } #else /* YOSYS_ENABLE_VERIFIC */ void execute(std::vector<std::string>, RTLIL::Design *) YS_OVERRIDE { - log_cmd_error("This version of Yosys is built without Verific support.\n"); + log_cmd_error("This version of Yosys is built without Verific support.\n" + "\n" + "Use Symbiotic EDA Suite if you need Yosys+Verifc.\n" + "https://www.symbioticeda.com/seda-suite\n" + "\n" + "Contact office@symbioticeda.com for free evaluation\n" + "binaries of Symbiotic EDA Suite.\n"); } #endif } VerificPass; diff --git a/frontends/verilog/preproc.cc b/frontends/verilog/preproc.cc index 7e107dc26..161253a99 100644 --- a/frontends/verilog/preproc.cc +++ b/frontends/verilog/preproc.cc @@ -28,7 +28,7 @@ * * Ad-hoc implementation of a Verilog preprocessor. The directives `define, * `include, `ifdef, `ifndef, `else and `endif are handled here. All other - * directives are handled by the lexer (see lexer.l). + * directives are handled by the lexer (see verilog_lexer.l). * */ diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index c8984c2c4..ca23df3e8 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -28,7 +28,7 @@ * * A simple lexer for Verilog code. Non-preprocessor compiler directives are * handled here. The preprocessor stuff is handled in preproc.cc. Everything - * else is left to the bison parser (see parser.y). + * else is left to the bison parser (see verilog_parser.y). * */ diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc index 7c73f94c8..ab4f4f377 100644 --- a/kernel/rtlil.cc +++ b/kernel/rtlil.cc @@ -1893,10 +1893,6 @@ DEF_METHOD(And, max(sig_a.size(), sig_b.size()), ID($and)) DEF_METHOD(Or, max(sig_a.size(), sig_b.size()), ID($or)) DEF_METHOD(Xor, max(sig_a.size(), sig_b.size()), ID($xor)) DEF_METHOD(Xnor, max(sig_a.size(), sig_b.size()), ID($xnor)) -DEF_METHOD(Shl, sig_a.size(), ID($shl)) -DEF_METHOD(Shr, sig_a.size(), ID($shr)) -DEF_METHOD(Sshl, sig_a.size(), ID($sshl)) -DEF_METHOD(Sshr, sig_a.size(), ID($sshr)) DEF_METHOD(Shift, sig_a.size(), ID($shift)) DEF_METHOD(Shiftx, sig_a.size(), ID($shiftx)) DEF_METHOD(Lt, 1, ID($lt)) @@ -1916,6 +1912,31 @@ DEF_METHOD(LogicAnd, 1, ID($logic_and)) DEF_METHOD(LogicOr, 1, ID($logic_or)) #undef DEF_METHOD +#define DEF_METHOD(_func, _y_size, _type) \ + RTLIL::Cell* RTLIL::Module::add ## _func(RTLIL::IdString name, RTLIL::SigSpec sig_a, RTLIL::SigSpec sig_b, RTLIL::SigSpec sig_y, bool is_signed, const std::string &src) { \ + RTLIL::Cell *cell = addCell(name, _type); \ + cell->parameters[ID(A_SIGNED)] = is_signed; \ + cell->parameters[ID(B_SIGNED)] = false; \ + cell->parameters[ID(A_WIDTH)] = sig_a.size(); \ + cell->parameters[ID(B_WIDTH)] = sig_b.size(); \ + cell->parameters[ID(Y_WIDTH)] = sig_y.size(); \ + cell->setPort(ID::A, sig_a); \ + cell->setPort(ID::B, sig_b); \ + cell->setPort(ID::Y, sig_y); \ + cell->set_src_attribute(src); \ + return cell; \ + } \ + RTLIL::SigSpec RTLIL::Module::_func(RTLIL::IdString name, RTLIL::SigSpec sig_a, RTLIL::SigSpec sig_b, bool is_signed, const std::string &src) { \ + RTLIL::SigSpec sig_y = addWire(NEW_ID, _y_size); \ + add ## _func(name, sig_a, sig_b, sig_y, is_signed, src); \ + return sig_y; \ + } +DEF_METHOD(Shl, sig_a.size(), ID($shl)) +DEF_METHOD(Shr, sig_a.size(), ID($shr)) +DEF_METHOD(Sshl, sig_a.size(), ID($sshl)) +DEF_METHOD(Sshr, sig_a.size(), ID($sshr)) +#undef DEF_METHOD + #define DEF_METHOD(_func, _type, _pmux) \ RTLIL::Cell* RTLIL::Module::add ## _func(RTLIL::IdString name, RTLIL::SigSpec sig_a, RTLIL::SigSpec sig_b, RTLIL::SigSpec sig_s, RTLIL::SigSpec sig_y, const std::string &src) { \ RTLIL::Cell *cell = addCell(name, _type); \ diff --git a/manual/CHAPTER_Verilog.tex b/manual/CHAPTER_Verilog.tex index e9ca6114e..d4cc55647 100644 --- a/manual/CHAPTER_Verilog.tex +++ b/manual/CHAPTER_Verilog.tex @@ -93,7 +93,7 @@ frontends/verilog/preproc.cc} in the Yosys source tree. \begin{sloppypar} The Verilog Lexer is written using the lexer generator {\it flex} \citeweblink{flex}. Its source code -can be found in {\tt frontends/verilog/lexer.l} in the Yosys source tree. +can be found in {\tt frontends/verilog/verilog\_lexer.l} in the Yosys source tree. The lexer does little more than identifying all keywords and literals recognised by the Yosys Verilog frontend. \end{sloppypar} @@ -115,7 +115,7 @@ whenever possible.) \subsection{The Verilog Parser} The Verilog Parser is written using the parser generator {\it bison} \citeweblink{bison}. Its source code -can be found in {\tt frontends/verilog/parser.y} in the Yosys source tree. +can be found in {\tt frontends/verilog/verilog\_parser.y} in the Yosys source tree. It generates an AST using the \lstinline[language=C++]{AST::AstNode} data structure defined in {\tt frontends/ast/ast.h}. An \lstinline[language=C++]{AST::AstNode} object has diff --git a/manual/manual.tex b/manual/manual.tex index 67982cbc8..75f087eca 100644 --- a/manual/manual.tex +++ b/manual/manual.tex @@ -146,7 +146,7 @@ with the help of HDL synthesis tools. In special cases such as synthesis for coarse-grain cell libraries or when testing new synthesis algorithms it might be necessary to write a custom HDL -synthesis tool or add new features to an existing one. It this cases the +synthesis tool or add new features to an existing one. In these cases the availability of a Free and Open Source (FOSS) synthesis tool that can be used as basis for custom tools would be helpful. diff --git a/passes/cmds/Makefile.inc b/passes/cmds/Makefile.inc index c7edc30fb..07a5d3ddc 100644 --- a/passes/cmds/Makefile.inc +++ b/passes/cmds/Makefile.inc @@ -32,3 +32,4 @@ OBJS += passes/cmds/chtype.o OBJS += passes/cmds/blackbox.o OBJS += passes/cmds/ltp.o OBJS += passes/cmds/bugpoint.o +OBJS += passes/cmds/scratchpad.o diff --git a/passes/cmds/scratchpad.cc b/passes/cmds/scratchpad.cc new file mode 100644 index 000000000..7ec55b78e --- /dev/null +++ b/passes/cmds/scratchpad.cc @@ -0,0 +1,130 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * 2019 Nina Engelhardt <nak@symbioticeda.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/register.h" +#include "kernel/rtlil.h" +#include "kernel/log.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +struct ScratchpadPass : public Pass { + ScratchpadPass() : Pass("scratchpad", "get/set values in the scratchpad") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" scratchpad [options]\n"); + log("\n"); + log("This pass allows to read and modify values from the scratchpad of the current\n"); + log("design. Options:\n"); + log("\n"); + log(" -get <identifier>\n"); + log(" print the value saved in the scratchpad under the given identifier.\n"); + log("\n"); + log(" -set <identifier> <value>\n"); + log(" save the given value in the scratchpad under the given identifier.\n"); + log("\n"); + log(" -unset <identifier>\n"); + log(" remove the entry for the given identifier from the scratchpad.\n"); + log("\n"); + log(" -copy <identifier_from> <identifier_to>\n"); + log(" copy the value of the first identifier to the second identifier.\n"); + log("\n"); + log(" -assert <identifier> <value>\n"); + log(" assert that the entry for the given identifier is set to the given value.\n"); + log("\n"); + log(" -assert-set <identifier>\n"); + log(" assert that the entry for the given identifier exists.\n"); + log("\n"); + log(" -assert-unset <identifier>\n"); + log(" assert that the entry for the given identifier does not exist.\n"); + log("\n"); + log("The identifier may not contain whitespace. By convention, it is usually prefixed\n"); + log("by the name of the pass that uses it, e.g. 'opt.did_something'. If the value\n"); + log("contains whitespace, it must be enclosed in double quotes.\n"); + log("\n"); + } + + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + if (args[argidx] == "-get" && argidx+1 < args.size()) { + string identifier = args[++argidx]; + if (design->scratchpad.count(identifier)){ + log("%s\n", design->scratchpad_get_string(identifier).c_str()); + } else { + log("\"%s\" not set\n", identifier.c_str()); + } + continue; + } + if (args[argidx] == "-set" && argidx+2 < args.size()) { + string identifier = args[++argidx]; + string value = args[++argidx]; + if (value.front() == '\"' && value.back() == '\"') value = value.substr(1, value.size() - 2); + design->scratchpad_set_string(identifier, value); + continue; + } + if (args[argidx] == "-unset" && argidx+1 < args.size()) { + string identifier = args[++argidx]; + design->scratchpad_unset(identifier); + continue; + } + if (args[argidx] == "-copy" && argidx+2 < args.size()) { + string identifier_from = args[++argidx]; + string identifier_to = args[++argidx]; + if (design->scratchpad.count(identifier_from) == 0) log_error("\"%s\" not set\n", identifier_from.c_str()); + string value = design->scratchpad_get_string(identifier_from); + design->scratchpad_set_string(identifier_to, value); + continue; + } + if (args[argidx] == "-assert" && argidx+2 < args.size()) { + string identifier = args[++argidx]; + string expected = args[++argidx]; + if (expected.front() == '\"' && expected.back() == '\"') expected = expected.substr(1, expected.size() - 2); + if (design->scratchpad.count(identifier) == 0) + log_error("Assertion failed: scratchpad entry '%s' is not defined\n", identifier.c_str()); + string value = design->scratchpad_get_string(identifier); + if (value != expected) { + log_error("Assertion failed: scratchpad entry '%s' is set to '%s' instead of the asserted '%s'\n", + identifier.c_str(), value.c_str(), expected.c_str()); + } + continue; + } + if (args[argidx] == "-assert-set" && argidx+1 < args.size()) { + string identifier = args[++argidx]; + if (design->scratchpad.count(identifier) == 0) + log_error("Assertion failed: scratchpad entry '%s' is not defined\n", identifier.c_str()); + continue; + } + if (args[argidx] == "-assert-unset" && argidx+1 < args.size()) { + string identifier = args[++argidx]; + if (design->scratchpad.count(identifier) > 0) + log_error("Assertion failed: scratchpad entry '%s' is defined\n", identifier.c_str()); + continue; + } + break; + } + extra_args(args, argidx, design, false); + } +} ScratchpadPass; +PRIVATE_NAMESPACE_END diff --git a/passes/equiv/equiv_opt.cc b/passes/equiv/equiv_opt.cc index c7e6d71a6..7c6c2e685 100644 --- a/passes/equiv/equiv_opt.cc +++ b/passes/equiv/equiv_opt.cc @@ -44,6 +44,10 @@ struct EquivOptPass:public ScriptPass log(" expand the modules in this file before proving equivalence. this is\n"); log(" useful for handling architecture-specific primitives.\n"); log("\n"); + log(" -blacklist <file>\n"); + log(" Do not match cells or signals that match the names in the file\n"); + log(" (passed to equiv_make).\n"); + log("\n"); log(" -assert\n"); log(" produce an error if the circuits are not equivalent.\n"); log("\n"); @@ -61,13 +65,14 @@ struct EquivOptPass:public ScriptPass log("\n"); } - std::string command, techmap_opts; + std::string command, techmap_opts, make_opts; bool assert, undef, multiclock, async2sync; void clear_flags() YS_OVERRIDE { command = ""; techmap_opts = ""; + make_opts = ""; assert = false; undef = false; multiclock = false; @@ -93,6 +98,10 @@ struct EquivOptPass:public ScriptPass techmap_opts += " -map " + args[++argidx]; continue; } + if (args[argidx] == "-blacklist" && argidx + 1 < args.size()) { + make_opts += " -blacklist " + args[++argidx]; + continue; + } if (args[argidx] == "-assert") { assert = true; continue; @@ -170,7 +179,12 @@ struct EquivOptPass:public ScriptPass run("clk2fflogic", "(only with -multiclock)"); if (async2sync || help_mode) run("async2sync", " (only with -async2sync)"); - run("equiv_make gold gate equiv"); + string opts; + if (help_mode) + opts = " -blacklist <filename> ..."; + else + opts = make_opts; + run("equiv_make" + opts + " gold gate equiv"); if (help_mode) run("equiv_induct [-undef] equiv"); else if (undef) diff --git a/passes/memory/memory_bram.cc b/passes/memory/memory_bram.cc index aa8f94149..24478f2ee 100644 --- a/passes/memory/memory_bram.cc +++ b/passes/memory/memory_bram.cc @@ -134,6 +134,7 @@ struct rules_t dict<string, int> min_limits, max_limits; bool or_next_if_better, make_transp, make_outreg; char shuffle_enable; + vector<vector<std::tuple<bool,IdString,Const>>> attributes; }; dict<IdString, vector<bram_t>> brams; @@ -327,6 +328,20 @@ struct rules_t continue; } + if (GetSize(tokens) >= 2 && tokens[0] == "attribute") { + data.attributes.emplace_back(); + for (int idx = 1; idx < GetSize(tokens); idx++) { + size_t c1 = tokens[idx][0] == '!' ? 1 : 0; + size_t c2 = tokens[idx].find("="); + bool exists = (c1 == 0); + IdString key = RTLIL::escape_id(tokens[idx].substr(c1, c2)); + Const val = c2 != std::string::npos ? tokens[idx].substr(c2+1) : RTLIL::Const(1); + + data.attributes.back().emplace_back(exists, key, val); + } + continue; + } + syntax_error(); } } @@ -724,7 +739,7 @@ grow_read_ports:; if (match.make_transp && wr_ports <= 1) { pi.make_transp = true; if (pi.clocks != 0) { - if (wr_ports == 1 && wr_clkdom != clkdom) { + if (wr_ports == 1 && wr_clkdom != clkdom) { log(" Bram port %c%d.%d cannot have soft transparency logic added as read and write clock domains differ.\n", pi.group + 'A', pi.index + 1, pi.dupidx + 1); goto skip_bram_rport; } @@ -813,6 +828,43 @@ grow_read_ports:; return false; } + for (const auto &sums : match.attributes) { + bool found = false; + for (const auto &term : sums) { + bool exists = std::get<0>(term); + IdString key = std::get<1>(term); + const Const &value = std::get<2>(term); + auto it = cell->attributes.find(key); + if (it == cell->attributes.end()) { + if (exists) + continue; + found = true; + break; + } + else if (!exists) + continue; + if (it->second != value) + continue; + found = true; + break; + } + if (!found) { + std::stringstream ss; + bool exists = std::get<0>(sums.front()); + if (!exists) + ss << "!"; + IdString key = std::get<1>(sums.front()); + ss << log_id(key); + const Const &value = std::get<2>(sums.front()); + if (exists && value != Const(1)) + ss << "=\"" << value.decode_string() << "\""; + + log(" Rule for bram type %s rejected: requirement 'attribute %s ...' not met.\n", + log_id(match.name), ss.str().c_str()); + return false; + } + } + if (mode == 1) return true; } @@ -1100,6 +1152,43 @@ void handle_cell(Cell *cell, const rules_t &rules) goto next_match_rule; } + for (const auto &sums : match.attributes) { + bool found = false; + for (const auto &term : sums) { + bool exists = std::get<0>(term); + IdString key = std::get<1>(term); + const Const &value = std::get<2>(term); + auto it = cell->attributes.find(key); + if (it == cell->attributes.end()) { + if (exists) + continue; + found = true; + break; + } + else if (!exists) + continue; + if (it->second != value) + continue; + found = true; + break; + } + if (!found) { + std::stringstream ss; + bool exists = std::get<0>(sums.front()); + if (!exists) + ss << "!"; + IdString key = std::get<1>(sums.front()); + ss << log_id(key); + const Const &value = std::get<2>(sums.front()); + if (exists && value != Const(1)) + ss << "=\"" << value.decode_string() << "\""; + + log(" Rule for bram type %s (variant %d) rejected: requirement 'attribute %s ...' not met.\n", + log_id(bram.name), bram.variant, ss.str().c_str()); + goto next_match_rule; + } + } + log(" Rule #%d for bram type %s (variant %d) accepted.\n", i+1, log_id(bram.name), bram.variant); if (or_next_if_better || !best_rule_cache.empty()) @@ -1225,6 +1314,13 @@ struct MemoryBramPass : public Pass { log(" dcells ....... number of cells in 'data-direction'\n"); log(" cells ........ total number of cells (acells*dcells*dups)\n"); log("\n"); + log("A match containing the command 'attribute' followed by a list of space\n"); + log("separated 'name[=string_value]' values requires that the memory contains any\n"); + log("one of the given attribute name and string values (where specified), or name\n"); + log("and integer 1 value (if no string_value given, since Verilog will interpret\n"); + log("'(* attr *)' as '(* attr=1 *)').\n"); + log("A name prefixed with '!' indicates that the attribute must not exist.\n"); + log("\n"); log("The interface for the created bram instances is derived from the bram\n"); log("description. Use 'techmap' to convert the created bram instances into\n"); log("instances of the actual bram cells of your target architecture.\n"); diff --git a/passes/opt/opt_expr.cc b/passes/opt/opt_expr.cc index 6cf66fb95..4a2f170b8 100644 --- a/passes/opt/opt_expr.cc +++ b/passes/opt/opt_expr.cc @@ -978,7 +978,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons { cover_list("opt.opt_expr.eqneq.cmpzero", "$eq", "$ne", cell->type.str()); log_debug("Replacing %s cell `%s' in module `%s' with %s.\n", log_id(cell->type), log_id(cell), - log_id(module), "$eq" ? "$logic_not" : "$reduce_bool"); + log_id(module), cell->type == ID($eq) ? "$logic_not" : "$reduce_bool"); cell->type = cell->type == ID($eq) ? ID($logic_not) : ID($reduce_bool); if (assign_map(cell->getPort(ID::A)).is_fully_zero()) { cell->setPort(ID::A, cell->getPort(ID::B)); diff --git a/passes/pmgen/Makefile.inc b/passes/pmgen/Makefile.inc index 145d2ebf9..1a57bef7d 100644 --- a/passes/pmgen/Makefile.inc +++ b/passes/pmgen/Makefile.inc @@ -22,8 +22,9 @@ $(eval $(call add_extra_objs,passes/pmgen/ice40_wrapcarry_pm.h)) # -------------------------------------- OBJS += passes/pmgen/xilinx_dsp.o -passes/pmgen/xilinx_dsp.o: passes/pmgen/xilinx_dsp_pm.h passes/pmgen/xilinx_dsp_CREG_pm.h passes/pmgen/xilinx_dsp_cascade_pm.h +passes/pmgen/xilinx_dsp.o: passes/pmgen/xilinx_dsp_pm.h passes/pmgen/xilinx_dsp48a_pm.h passes/pmgen/xilinx_dsp_CREG_pm.h passes/pmgen/xilinx_dsp_cascade_pm.h $(eval $(call add_extra_objs,passes/pmgen/xilinx_dsp_pm.h)) +$(eval $(call add_extra_objs,passes/pmgen/xilinx_dsp48a_pm.h)) $(eval $(call add_extra_objs,passes/pmgen/xilinx_dsp_CREG_pm.h)) $(eval $(call add_extra_objs,passes/pmgen/xilinx_dsp_cascade_pm.h)) diff --git a/passes/pmgen/xilinx_dsp.cc b/passes/pmgen/xilinx_dsp.cc index 054e123e4..81c3c57c4 100644 --- a/passes/pmgen/xilinx_dsp.cc +++ b/passes/pmgen/xilinx_dsp.cc @@ -26,6 +26,7 @@ USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN #include "passes/pmgen/xilinx_dsp_pm.h" +#include "passes/pmgen/xilinx_dsp48a_pm.h" #include "passes/pmgen/xilinx_dsp_CREG_pm.h" #include "passes/pmgen/xilinx_dsp_cascade_pm.h" @@ -487,6 +488,190 @@ void xilinx_dsp_pack(xilinx_dsp_pm &pm) pm.blacklist(cell); } +void xilinx_dsp48a_pack(xilinx_dsp48a_pm &pm) +{ + auto &st = pm.st_xilinx_dsp48a_pack; + + log("Analysing %s.%s for Xilinx DSP48A/DSP48A1 packing.\n", log_id(pm.module), log_id(st.dsp)); + + log_debug("preAdd: %s\n", log_id(st.preAdd, "--")); + log_debug("ffA1: %s %s %s\n", log_id(st.ffA1, "--"), log_id(st.ffA1cemux, "--"), log_id(st.ffA1rstmux, "--")); + log_debug("ffA0: %s %s %s\n", log_id(st.ffA0, "--"), log_id(st.ffA0cemux, "--"), log_id(st.ffA0rstmux, "--")); + log_debug("ffB1: %s %s %s\n", log_id(st.ffB1, "--"), log_id(st.ffB1cemux, "--"), log_id(st.ffB1rstmux, "--")); + log_debug("ffB0: %s %s %s\n", log_id(st.ffB0, "--"), log_id(st.ffB0cemux, "--"), log_id(st.ffB0rstmux, "--")); + log_debug("ffD: %s %s %s\n", log_id(st.ffD, "--"), log_id(st.ffDcemux, "--"), log_id(st.ffDrstmux, "--")); + log_debug("dsp: %s\n", log_id(st.dsp, "--")); + log_debug("ffM: %s %s %s\n", log_id(st.ffM, "--"), log_id(st.ffMcemux, "--"), log_id(st.ffMrstmux, "--")); + log_debug("postAdd: %s\n", log_id(st.postAdd, "--")); + log_debug("postAddMux: %s\n", log_id(st.postAddMux, "--")); + log_debug("ffP: %s %s %s\n", log_id(st.ffP, "--"), log_id(st.ffPcemux, "--"), log_id(st.ffPrstmux, "--")); + + Cell *cell = st.dsp; + SigSpec &opmode = cell->connections_.at(ID(OPMODE)); + + if (st.preAdd) { + log(" preadder %s (%s)\n", log_id(st.preAdd), log_id(st.preAdd->type)); + bool D_SIGNED = st.preAdd->getParam(ID(A_SIGNED)).as_bool(); + bool B_SIGNED = st.preAdd->getParam(ID(B_SIGNED)).as_bool(); + st.sigB.extend_u0(18, B_SIGNED); + st.sigD.extend_u0(18, D_SIGNED); + cell->setPort(ID(B), st.sigB); + cell->setPort(ID(D), st.sigD); + opmode[4] = State::S1; + if (st.preAdd->type == ID($add)) + opmode[6] = State::S0; + else if (st.preAdd->type == ID($sub)) + opmode[6] = State::S1; + else + log_assert(!"strange pre-adder type"); + + pm.autoremove(st.preAdd); + } + if (st.postAdd) { + log(" postadder %s (%s)\n", log_id(st.postAdd), log_id(st.postAdd->type)); + + if (st.postAddMux) { + log_assert(st.ffP); + opmode[2] = st.postAddMux->getPort(ID(S)); + pm.autoremove(st.postAddMux); + } + else if (st.ffP && st.sigC == st.sigP) + opmode[2] = State::S0; + else + opmode[2] = State::S1; + opmode[3] = State::S1; + + if (opmode[2] != State::S0) { + if (st.postAddMuxAB == ID(A)) + st.sigC.extend_u0(48, st.postAdd->getParam(ID(B_SIGNED)).as_bool()); + else + st.sigC.extend_u0(48, st.postAdd->getParam(ID(A_SIGNED)).as_bool()); + cell->setPort(ID(C), st.sigC); + } + + pm.autoremove(st.postAdd); + } + + if (st.clock != SigBit()) + { + cell->setPort(ID(CLK), st.clock); + + auto f = [&pm,cell](SigSpec &A, Cell* ff, Cell* cemux, bool cepol, IdString ceport, Cell* rstmux, bool rstpol, IdString rstport) { + SigSpec D = ff->getPort(ID(D)); + SigSpec Q = pm.sigmap(ff->getPort(ID(Q))); + if (!A.empty()) + A.replace(Q, D); + if (rstmux) { + SigSpec Y = rstmux->getPort(ID(Y)); + SigSpec AB = rstmux->getPort(rstpol ? ID(A) : ID(B)); + if (!A.empty()) + A.replace(Y, AB); + if (rstport != IdString()) { + SigSpec S = rstmux->getPort(ID(S)); + cell->setPort(rstport, rstpol ? S : pm.module->Not(NEW_ID, S)); + } + } + else if (rstport != IdString()) + cell->setPort(rstport, State::S0); + if (cemux) { + SigSpec Y = cemux->getPort(ID(Y)); + SigSpec BA = cemux->getPort(cepol ? ID(B) : ID(A)); + SigSpec S = cemux->getPort(ID(S)); + if (!A.empty()) + A.replace(Y, BA); + cell->setPort(ceport, cepol ? S : pm.module->Not(NEW_ID, S)); + } + else + cell->setPort(ceport, State::S1); + + for (auto c : Q.chunks()) { + auto it = c.wire->attributes.find(ID(init)); + if (it == c.wire->attributes.end()) + continue; + for (int i = c.offset; i < c.offset+c.width; i++) { + log_assert(it->second[i] == State::S0 || it->second[i] == State::Sx); + it->second[i] = State::Sx; + } + } + }; + + if (st.ffA0 || st.ffA1) { + SigSpec A = cell->getPort(ID(A)); + if (st.ffA1) { + f(A, st.ffA1, st.ffA1cemux, st.ffAcepol, ID(CEA), st.ffA1rstmux, st.ffArstpol, ID(RSTA)); + cell->setParam(ID(A1REG), 1); + } + if (st.ffA0) { + f(A, st.ffA0, st.ffA0cemux, st.ffAcepol, ID(CEA), st.ffA0rstmux, st.ffArstpol, ID(RSTA)); + cell->setParam(ID(A0REG), 1); + } + pm.add_siguser(A, cell); + cell->setPort(ID(A), A); + } + if (st.ffB0 || st.ffB1) { + SigSpec B = cell->getPort(ID(B)); + if (st.ffB1) { + f(B, st.ffB1, st.ffB1cemux, st.ffBcepol, ID(CEB), st.ffB1rstmux, st.ffBrstpol, ID(RSTB)); + cell->setParam(ID(B1REG), 1); + } + if (st.ffB0) { + f(B, st.ffB0, st.ffB0cemux, st.ffBcepol, ID(CEB), st.ffB0rstmux, st.ffBrstpol, ID(RSTB)); + cell->setParam(ID(B0REG), 1); + } + pm.add_siguser(B, cell); + cell->setPort(ID(B), B); + } + if (st.ffD) { + SigSpec D = cell->getPort(ID(D)); + f(D, st.ffD, st.ffDcemux, st.ffDcepol, ID(CED), st.ffDrstmux, st.ffDrstpol, ID(RSTD)); + pm.add_siguser(D, cell); + cell->setPort(ID(D), D); + cell->setParam(ID(DREG), 1); + } + if (st.ffM) { + SigSpec M; // unused + f(M, st.ffM, st.ffMcemux, st.ffMcepol, ID(CEM), st.ffMrstmux, st.ffMrstpol, ID(RSTM)); + st.ffM->connections_.at(ID(Q)).replace(st.sigM, pm.module->addWire(NEW_ID, GetSize(st.sigM))); + cell->setParam(ID(MREG), State::S1); + } + if (st.ffP) { + SigSpec P; // unused + f(P, st.ffP, st.ffPcemux, st.ffPcepol, ID(CEP), st.ffPrstmux, st.ffPrstpol, ID(RSTP)); + st.ffP->connections_.at(ID(Q)).replace(st.sigP, pm.module->addWire(NEW_ID, GetSize(st.sigP))); + cell->setParam(ID(PREG), State::S1); + } + + log(" clock: %s (%s)", log_signal(st.clock), "posedge"); + + if (st.ffA0) + log(" ffA0:%s", log_id(st.ffA0)); + if (st.ffA1) + log(" ffA1:%s", log_id(st.ffA1)); + + if (st.ffB0) + log(" ffB0:%s", log_id(st.ffB0)); + if (st.ffB1) + log(" ffB1:%s", log_id(st.ffB1)); + + if (st.ffD) + log(" ffD:%s", log_id(st.ffD)); + + if (st.ffM) + log(" ffM:%s", log_id(st.ffM)); + + if (st.ffP) + log(" ffP:%s", log_id(st.ffP)); + } + log("\n"); + + SigSpec P = st.sigP; + if (GetSize(P) < 48) + P.append(pm.module->addWire(NEW_ID, 48-GetSize(P))); + cell->setPort(ID(P), P); + + pm.blacklist(cell); +} + void xilinx_dsp_packC(xilinx_dsp_CREG_pm &pm) { auto &st = pm.st_xilinx_dsp_packC; @@ -592,33 +777,48 @@ struct XilinxDspPass : public Pass { log("P output implementing the operation \"(P >= <power-of-2>)\" will be transformed\n"); log("into using the DSP48E1's pattern detector feature for overflow detection.\n"); log("\n"); + log(" -family {xcup|xcu|xc7|xc6v|xc5v|xc4v|xc6s|xc3sda}\n"); + log(" select the family to target\n"); + log(" default: xc7\n"); + log("\n"); } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing XILINX_DSP pass (pack resources into DSPs).\n"); + std::string family = "xc7"; size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { - // if (args[argidx] == "-singleton") { - // singleton_mode = true; - // continue; - // } + if ((args[argidx] == "-family" || args[argidx] == "-arch") && argidx+1 < args.size()) { + family = args[++argidx]; + continue; + } break; } extra_args(args, argidx, design); + // Don't bother distinguishing between those. + if (family == "xc6v") + family = "xc7"; + if (family == "xcup") + family = "xcu"; + for (auto module : design->selected_modules()) { // Experimental feature: pack $add/$sub cells with // (* use_dsp48="simd" *) into DSP48E1's using its // SIMD feature - xilinx_simd_pack(module, module->selected_cells()); + if (family == "xc7") + xilinx_simd_pack(module, module->selected_cells()); // Match for all features ([ABDMP][12]?REG, pre-adder, // post-adder, pattern detector, etc.) except for CREG - { + if (family == "xc7") { xilinx_dsp_pm pm(module, module->selected_cells()); pm.run_xilinx_dsp_pack(xilinx_dsp_pack); + } else if (family == "xc6s" || family == "xc3sda") { + xilinx_dsp48a_pm pm(module, module->selected_cells()); + pm.run_xilinx_dsp48a_pack(xilinx_dsp48a_pack); } // Separating out CREG packing is necessary since there // is no guarantee that the cell ordering corresponds diff --git a/passes/pmgen/xilinx_dsp48a.pmg b/passes/pmgen/xilinx_dsp48a.pmg new file mode 100644 index 000000000..16f5e598d --- /dev/null +++ b/passes/pmgen/xilinx_dsp48a.pmg @@ -0,0 +1,673 @@ +// This file describes the main pattern matcher setup (of three total) that +// forms the `xilinx_dsp` pass described in xilinx_dsp.cc - version for +// DSP48A/DSP48A1 (Spartan 3A DSP, Spartan 6). +// At a high level, it works as follows: +// ( 1) Starting from a DSP48A/DSP48A1 cell +// ( 2) Match the driver of the 'B' input to a possible $dff cell (B1REG) +// (attached to at most two $mux cells that implement clock-enable or +// reset functionality, using a subpattern discussed below) +// If B1REG matched, treat 'B' input as input of B1REG +// ( 3) Match the driver of the 'B' and 'D' inputs for a possible $add cell +// (pre-adder) +// ( 4) Match 'B' input for B0REG +// ( 5) Match 'A' input for A1REG +// If A1REG, then match 'A' input for A0REG +// ( 6) Match 'D' input for DREG +// ( 7) Match 'P' output that exclusively drives an MREG +// ( 8) Match 'P' output that exclusively drives one of two inputs to an $add +// cell (post-adder). +// The other input to the adder is assumed to come in from the 'C' input +// (note: 'P' -> 'C' connections that exist for accumulators are +// recognised in xilinx_dsp.cc). +// ( 9) Match 'P' output that exclusively drives a PREG +// (10) If post-adder and PREG both present, match for a $mux cell driving +// the 'C' input, where one of the $mux's inputs is the PREG output. +// This indicates an accumulator situation, and one where a $mux exists +// to override the accumulated value: +// +--------------------------------+ +// | ____ | +// +--| \ | +// |$mux|-+ | +// 'C' ---|____/ | | +// | /-------\ +----+ | +// +----+ +-| post- |___|PREG|---+ 'P' +// |MREG|------ | adder | +----+ +// +----+ \-------/ +// Notes: see the notes in xilinx_dsp.pmg + +pattern xilinx_dsp48a_pack + +state <SigBit> clock +state <SigSpec> sigA sigB sigC sigD sigM sigP +state <IdString> postAddAB postAddMuxAB +state <bool> ffAcepol ffBcepol ffDcepol ffMcepol ffPcepol +state <bool> ffArstpol ffBrstpol ffDrstpol ffMrstpol ffPrstpol +state <Cell*> ffA0 ffA0cemux ffA0rstmux ffA1 ffA1cemux ffA1rstmux +state <Cell*> ffB0 ffB0cemux ffB0rstmux ffB1 ffB1cemux ffB1rstmux +state <Cell*> ffD ffDcemux ffDrstmux ffM ffMcemux ffMrstmux ffP ffPcemux ffPrstmux + +// Variables used for subpatterns +state <SigSpec> argQ argD +state <bool> ffcepol ffrstpol +state <int> ffoffset +udata <SigSpec> dffD dffQ +udata <SigBit> dffclock +udata <Cell*> dff dffcemux dffrstmux +udata <bool> dffcepol dffrstpol + +// (1) Starting from a DSP48A/DSP48A1 cell +match dsp + select dsp->type.in(\DSP48A, \DSP48A1) +endmatch + +code sigA sigB sigC sigD sigM clock + auto unextend = [](const SigSpec &sig) { + int i; + for (i = GetSize(sig)-1; i > 0; i--) + if (sig[i] != sig[i-1]) + break; + // Do not remove non-const sign bit + if (sig[i].wire) + ++i; + return sig.extract(0, i); + }; + sigA = unextend(port(dsp, \A)); + sigB = unextend(port(dsp, \B)); + + sigC = port(dsp, \C, SigSpec()); + sigD = port(dsp, \D, SigSpec()); + + SigSpec P = port(dsp, \P); + // Only care about those bits that are used + int i; + for (i = GetSize(P)-1; i >= 0; i--) + if (nusers(P[i]) > 1) + break; + i++; + log_assert(nusers(P.extract_end(i)) <= 1); + // This sigM could have no users if downstream sinks (e.g. $add) is + // narrower than $mul result, for example + if (i == 0) + reject; + sigM = P.extract(0, i); + + clock = port(dsp, \CLK, SigBit()); +endcode + +// (2) Match the driver of the 'B' input to a possible $dff cell (B1REG) +// (attached to at most two $mux cells that implement clock-enable or +// reset functionality, using a subpattern discussed above) +// If matched, treat 'B' input as input of B1REG +code argQ ffB1 ffB1cemux ffB1rstmux ffBcepol ffBrstpol sigB clock + if (param(dsp, \B1REG).as_int() == 0 && param(dsp, \B0REG).as_int() == 0 && port(dsp, \OPMODE, SigSpec()).extract(4, 1).is_fully_zero()) { + argQ = sigB; + subpattern(in_dffe); + if (dff) { + ffB1 = dff; + clock = dffclock; + if (dffrstmux) { + ffB1rstmux = dffrstmux; + ffBrstpol = dffrstpol; + } + if (dffcemux) { + ffB1cemux = dffcemux; + ffBcepol = dffcepol; + } + sigB = dffD; + } + } +endcode + +// (3) Match the driver of the 'B' and 'D' inputs for a possible $add cell +// (pre-adder) +match preAdd + if sigD.empty() || sigD.is_fully_zero() + if param(dsp, \B0REG).as_int() == 0 + // Ensure that preAdder not already used + if port(dsp, \OPMODE, SigSpec()).extract(4, 1).is_fully_zero() + + select preAdd->type.in($add, $sub) + // Output has to be 18 bits or less + select GetSize(port(preAdd, \Y)) <= 18 + select nusers(port(preAdd, \Y)) == 2 + // D port has to be 18 bits or less + select GetSize(port(preAdd, \A)) <= 18 + // B port has to be 18 bits or less + select GetSize(port(preAdd, \B)) <= 18 + index <SigSpec> port(preAdd, \Y) === sigB + + optional +endmatch + +code sigB sigD + if (preAdd) { + sigD = port(preAdd, \A); + sigB = port(preAdd, \B); + } +endcode + +// (4) Match 'B' input for B0REG +code argQ ffB0 ffB0cemux ffB0rstmux ffBcepol ffBrstpol sigB clock + if (param(dsp, \B0REG).as_int() == 0) { + argQ = sigB; + subpattern(in_dffe); + if (dff) { + if (ffB1) { + if ((ffB1rstmux != nullptr) ^ (dffrstmux != nullptr)) + goto ffB0_end; + if ((ffB1cemux != nullptr) ^ (dffcemux != nullptr)) + goto ffB0_end; + if (dffrstmux) { + if (ffBrstpol != dffrstpol) + goto ffB0_end; + if (port(ffB1rstmux, \S) != port(dffrstmux, \S)) + goto ffB0_end; + ffB0rstmux = dffrstmux; + } + if (dffcemux) { + if (ffBcepol != dffcepol) + goto ffB0_end; + if (port(ffB1cemux, \S) != port(dffcemux, \S)) + goto ffB0_end; + ffB0cemux = dffcemux; + } + } + ffB0 = dff; + clock = dffclock; + if (dffrstmux) { + ffB0rstmux = dffrstmux; + ffBrstpol = dffrstpol; + } + if (dffcemux) { + ffB0cemux = dffcemux; + ffBcepol = dffcepol; + } + sigB = dffD; + } + } +ffB0_end: +endcode + +// (5) Match 'A' input for A1REG +// If A1REG, then match 'A' input for A0REG +code argQ ffA1 ffA1cemux ffA1rstmux ffAcepol ffArstpol sigA clock ffA0 ffA0cemux ffA0rstmux + if (param(dsp, \A0REG).as_int() == 0 && param(dsp, \A1REG).as_int() == 0) { + argQ = sigA; + subpattern(in_dffe); + if (dff) { + ffA1 = dff; + clock = dffclock; + if (dffrstmux) { + ffA1rstmux = dffrstmux; + ffArstpol = dffrstpol; + } + if (dffcemux) { + ffA1cemux = dffcemux; + ffAcepol = dffcepol; + } + sigA = dffD; + + // Now attempt to match A0 + if (ffA1) { + argQ = sigA; + subpattern(in_dffe); + if (dff) { + if ((ffA1rstmux != nullptr) ^ (dffrstmux != nullptr)) + goto ffA0_end; + if ((ffA1cemux != nullptr) ^ (dffcemux != nullptr)) + goto ffA0_end; + if (dffrstmux) { + if (ffArstpol != dffrstpol) + goto ffA0_end; + if (port(ffA1rstmux, \S) != port(dffrstmux, \S)) + goto ffA0_end; + ffA0rstmux = dffrstmux; + } + if (dffcemux) { + if (ffAcepol != dffcepol) + goto ffA0_end; + if (port(ffA1cemux, \S) != port(dffcemux, \S)) + goto ffA0_end; + ffA0cemux = dffcemux; + } + + ffA0 = dff; + clock = dffclock; + + if (dffcemux) { + ffA0cemux = dffcemux; + ffAcepol = dffcepol; + } + sigA = dffD; + +ffA0_end: ; + } + } + + } + } +endcode + +// (6) Match 'D' input for DREG +code argQ ffD ffDcemux ffDrstmux ffDcepol ffDrstpol sigD clock + if (param(dsp, \DREG).as_int() == 0) { + argQ = sigD; + subpattern(in_dffe); + if (dff) { + ffD = dff; + clock = dffclock; + if (dffrstmux) { + ffDrstmux = dffrstmux; + ffDrstpol = dffrstpol; + } + if (dffcemux) { + ffDcemux = dffcemux; + ffDcepol = dffcepol; + } + sigD = dffD; + } + } +endcode + +// (7) Match 'P' output that exclusively drives an MREG +code argD ffM ffMcemux ffMrstmux ffMcepol ffMrstpol sigM sigP clock + if (param(dsp, \MREG).as_int() == 0 && nusers(sigM) == 2) { + argD = sigM; + subpattern(out_dffe); + if (dff) { + ffM = dff; + clock = dffclock; + if (dffrstmux) { + ffMrstmux = dffrstmux; + ffMrstpol = dffrstpol; + } + if (dffcemux) { + ffMcemux = dffcemux; + ffMcepol = dffcepol; + } + sigM = dffQ; + } + } + sigP = sigM; +endcode + +// (8) Match 'P' output that exclusively drives one of two inputs to an $add +// cell (post-adder). +// The other input to the adder is assumed to come in from the 'C' input +// (note: 'P' -> 'C' connections that exist for accumulators are +// recognised in xilinx_dsp.cc). +match postAdd + // Ensure that Z mux is not already used + if port(dsp, \OPMODE, SigSpec()).extract(2,2).is_fully_zero() + + select postAdd->type.in($add) + select GetSize(port(postAdd, \Y)) <= 48 + choice <IdString> AB {\A, \B} + select nusers(port(postAdd, AB)) <= 3 + filter ffMcemux || nusers(port(postAdd, AB)) == 2 + filter !ffMcemux || nusers(port(postAdd, AB)) == 3 + + index <SigBit> port(postAdd, AB)[0] === sigP[0] + filter GetSize(port(postAdd, AB)) >= GetSize(sigP) + filter port(postAdd, AB).extract(0, GetSize(sigP)) == sigP + // Check that remainder of AB is a sign- or zero-extension + filter port(postAdd, AB).extract_end(GetSize(sigP)) == SigSpec(sigP[GetSize(sigP)-1], GetSize(port(postAdd, AB))-GetSize(sigP)) || port(postAdd, AB).extract_end(GetSize(sigP)) == SigSpec(State::S0, GetSize(port(postAdd, AB))-GetSize(sigP)) + + set postAddAB AB + optional +endmatch + +code sigC sigP + if (postAdd) { + sigC = port(postAdd, postAddAB == \A ? \B : \A); + sigP = port(postAdd, \Y); + } +endcode + +// (9) Match 'P' output that exclusively drives a PREG +code argD ffP ffPcemux ffPrstmux ffPcepol ffPrstpol sigP clock + if (param(dsp, \PREG).as_int() == 0) { + int users = 2; + // If ffMcemux and no postAdd new-value net must have three users: ffMcemux, ffM and ffPcemux + if (ffMcemux && !postAdd) users++; + if (nusers(sigP) == users) { + argD = sigP; + subpattern(out_dffe); + if (dff) { + ffP = dff; + clock = dffclock; + if (dffrstmux) { + ffPrstmux = dffrstmux; + ffPrstpol = dffrstpol; + } + if (dffcemux) { + ffPcemux = dffcemux; + ffPcepol = dffcepol; + } + sigP = dffQ; + } + } + } +endcode + +// (10) If post-adder and PREG both present, match for a $mux cell driving +// the 'C' input, where one of the $mux's inputs is the PREG output. +// This indicates an accumulator situation, and one where a $mux exists +// to override the accumulated value: +// +--------------------------------+ +// | ____ | +// +--| \ | +// |$mux|-+ | +// 'C' ---|____/ | | +// | /-------\ +----+ | +// +----+ +-| post- |___|PREG|---+ 'P' +// |MREG|------ | adder | +----+ +// +----+ \-------/ +match postAddMux + if postAdd + if ffP + select postAddMux->type.in($mux) + select nusers(port(postAddMux, \Y)) == 2 + choice <IdString> AB {\A, \B} + index <SigSpec> port(postAddMux, AB) === sigP + index <SigSpec> port(postAddMux, \Y) === sigC + set postAddMuxAB AB + optional +endmatch + +code sigC + if (postAddMux) + sigC = port(postAddMux, postAddMuxAB == \A ? \B : \A); +endcode + +code + accept; +endcode + +// ####################### + +// Subpattern for matching against input registers, based on knowledge of the +// 'Q' input. Typically, identifying registers with clock-enable and reset +// capability would be a task would be handled by other Yosys passes such as +// dff2dffe, but since DSP inference happens much before this, these patterns +// have to be manually identified. +// At a high level: +// (1) Starting from a $dff cell that (partially or fully) drives the given +// 'Q' argument +// (2) Match for a $mux cell implementing synchronous reset semantics --- +// one that exclusively drives the 'D' input of the $dff, with one of its +// $mux inputs being fully zero +// (3) Match for a $mux cell implement clock enable semantics --- one that +// exclusively drives the 'D' input of the $dff (or the other input of +// the reset $mux) and where one of this $mux's inputs is connected to +// the 'Q' output of the $dff +subpattern in_dffe +arg argD argQ clock + +code + dff = nullptr; + if (GetSize(argQ) == 0) + reject; + for (const auto &c : argQ.chunks()) { + // Abandon matches when 'Q' is a constant + if (!c.wire) + reject; + // Abandon matches when 'Q' has the keep attribute set + if (c.wire->get_bool_attribute(\keep)) + reject; + // Abandon matches when 'Q' has a non-zero init attribute set + // (not supported by DSP48E1) + Const init = c.wire->attributes.at(\init, Const()); + if (!init.empty()) + for (auto b : init.extract(c.offset, c.width)) + if (b != State::Sx && b != State::S0) + reject; + } +endcode + +// (1) Starting from a $dff cell that (partially or fully) drives the given +// 'Q' argument +match ff + select ff->type.in($dff) + // DSP48E1 does not support clock inversion + select param(ff, \CLK_POLARITY).as_bool() + + slice offset GetSize(port(ff, \D)) + index <SigBit> port(ff, \Q)[offset] === argQ[0] + + // Check that the rest of argQ is present + filter GetSize(port(ff, \Q)) >= offset + GetSize(argQ) + filter port(ff, \Q).extract(offset, GetSize(argQ)) == argQ + + filter clock == SigBit() || port(ff, \CLK) == clock + + set ffoffset offset +endmatch + +code argQ argD + SigSpec Q = port(ff, \Q); + dff = ff; + dffclock = port(ff, \CLK); + dffD = argQ; + argD = port(ff, \D); + argQ = Q; + dffD.replace(argQ, argD); + // Only search for ffrstmux if dffD only + // has two (ff, ffrstmux) users + if (nusers(dffD) > 2) + argD = SigSpec(); +endcode + +// (2) Match for a $mux cell implementing synchronous reset semantics --- +// exclusively drives the 'D' input of the $dff, with one of the $mux +// inputs being fully zero +match ffrstmux + if !argD.empty() + select ffrstmux->type.in($mux) + index <SigSpec> port(ffrstmux, \Y) === argD + + choice <IdString> BA {\B, \A} + // DSP48E1 only supports reset to zero + select port(ffrstmux, BA).is_fully_zero() + + define <bool> pol (BA == \B) + set ffrstpol pol + semioptional +endmatch + +code argD + if (ffrstmux) { + dffrstmux = ffrstmux; + dffrstpol = ffrstpol; + argD = port(ffrstmux, ffrstpol ? \A : \B); + dffD.replace(port(ffrstmux, \Y), argD); + + // Only search for ffcemux if argQ has at + // least 3 users (ff, <upstream>, ffrstmux) and + // dffD only has two (ff, ffrstmux) + if (!(nusers(argQ) >= 3 && nusers(dffD) == 2)) + argD = SigSpec(); + } + else + dffrstmux = nullptr; +endcode + +// (3) Match for a $mux cell implement clock enable semantics --- one that +// exclusively drives the 'D' input of the $dff (or the other input of +// the reset $mux) and where one of this $mux's inputs is connected to +// the 'Q' output of the $dff +match ffcemux + if !argD.empty() + select ffcemux->type.in($mux) + index <SigSpec> port(ffcemux, \Y) === argD + choice <IdString> AB {\A, \B} + index <SigSpec> port(ffcemux, AB) === argQ + define <bool> pol (AB == \A) + set ffcepol pol + semioptional +endmatch + +code argD + if (ffcemux) { + dffcemux = ffcemux; + dffcepol = ffcepol; + argD = port(ffcemux, ffcepol ? \B : \A); + dffD.replace(port(ffcemux, \Y), argD); + } + else + dffcemux = nullptr; +endcode + +// ####################### + +// Subpattern for matching against output registers, based on knowledge of the +// 'D' input. +// At a high level: +// (1) Starting from an optional $mux cell that implements clock enable +// semantics --- one where the given 'D' argument (partially or fully) +// drives one of its two inputs +// (2) Starting from, or continuing onto, another optional $mux cell that +// implements synchronous reset semantics --- one where the given 'D' +// argument (or the clock enable $mux output) drives one of its two inputs +// and where the other input is fully zero +// (3) Match for a $dff cell (whose 'D' input is the 'D' argument, or the +// output of the previous clock enable or reset $mux cells) +subpattern out_dffe +arg argD argQ clock + +code + dff = nullptr; + for (auto c : argD.chunks()) + // Abandon matches when 'D' has the keep attribute set + if (c.wire->get_bool_attribute(\keep)) + reject; +endcode + +// (1) Starting from an optional $mux cell that implements clock enable +// semantics --- one where the given 'D' argument (partially or fully) +// drives one of its two inputs +match ffcemux + select ffcemux->type.in($mux) + // ffcemux output must have two users: ffcemux and ff.D + select nusers(port(ffcemux, \Y)) == 2 + + choice <IdString> AB {\A, \B} + // keep-last-value net must have at least three users: ffcemux, ff, downstream sink(s) + select nusers(port(ffcemux, AB)) >= 3 + + slice offset GetSize(port(ffcemux, \Y)) + define <IdString> BA (AB == \A ? \B : \A) + index <SigBit> port(ffcemux, BA)[offset] === argD[0] + + // Check that the rest of argD is present + filter GetSize(port(ffcemux, BA)) >= offset + GetSize(argD) + filter port(ffcemux, BA).extract(offset, GetSize(argD)) == argD + + set ffoffset offset + define <bool> pol (AB == \A) + set ffcepol pol + + semioptional +endmatch + +code argD argQ + dffcemux = ffcemux; + if (ffcemux) { + SigSpec BA = port(ffcemux, ffcepol ? \B : \A); + SigSpec Y = port(ffcemux, \Y); + argQ = argD; + argD.replace(BA, Y); + argQ.replace(BA, port(ffcemux, ffcepol ? \A : \B)); + + dffcemux = ffcemux; + dffcepol = ffcepol; + } +endcode + +// (2) Starting from, or continuing onto, another optional $mux cell that +// implements synchronous reset semantics --- one where the given 'D' +// argument (or the clock enable $mux output) drives one of its two inputs +// and where the other input is fully zero +match ffrstmux + select ffrstmux->type.in($mux) + // ffrstmux output must have two users: ffrstmux and ff.D + select nusers(port(ffrstmux, \Y)) == 2 + + choice <IdString> BA {\B, \A} + // DSP48E1 only supports reset to zero + select port(ffrstmux, BA).is_fully_zero() + + slice offset GetSize(port(ffrstmux, \Y)) + define <IdString> AB (BA == \B ? \A : \B) + index <SigBit> port(ffrstmux, AB)[offset] === argD[0] + + // Check that offset is consistent + filter !ffcemux || ffoffset == offset + // Check that the rest of argD is present + filter GetSize(port(ffrstmux, AB)) >= offset + GetSize(argD) + filter port(ffrstmux, AB).extract(offset, GetSize(argD)) == argD + + set ffoffset offset + define <bool> pol (AB == \A) + set ffrstpol pol + + semioptional +endmatch + +code argD argQ + dffrstmux = ffrstmux; + if (ffrstmux) { + SigSpec AB = port(ffrstmux, ffrstpol ? \A : \B); + SigSpec Y = port(ffrstmux, \Y); + argD.replace(AB, Y); + + dffrstmux = ffrstmux; + dffrstpol = ffrstpol; + } +endcode + +// (3) Match for a $dff cell (whose 'D' input is the 'D' argument, or the +// output of the previous clock enable or reset $mux cells) +match ff + select ff->type.in($dff) + // DSP48E1 does not support clock inversion + select param(ff, \CLK_POLARITY).as_bool() + + slice offset GetSize(port(ff, \D)) + index <SigBit> port(ff, \D)[offset] === argD[0] + + // Check that offset is consistent + filter (!ffcemux && !ffrstmux) || ffoffset == offset + // Check that the rest of argD is present + filter GetSize(port(ff, \D)) >= offset + GetSize(argD) + filter port(ff, \D).extract(offset, GetSize(argD)) == argD + // Check that FF.Q is connected to CE-mux + filter !ffcemux || port(ff, \Q).extract(offset, GetSize(argQ)) == argQ + + filter clock == SigBit() || port(ff, \CLK) == clock + + set ffoffset offset +endmatch + +code argQ + SigSpec D = port(ff, \D); + SigSpec Q = port(ff, \Q); + if (!ffcemux) { + argQ = argD; + argQ.replace(D, Q); + } + + // Abandon matches when 'Q' has a non-zero init attribute set + // (not supported by DSP48E1) + for (auto c : argQ.chunks()) { + Const init = c.wire->attributes.at(\init, Const()); + if (!init.empty()) + for (auto b : init.extract(c.offset, c.width)) + if (b != State::Sx && b != State::S0) + reject; + } + + dff = ff; + dffQ = argQ; + dffclock = port(ff, \CLK); +endcode diff --git a/passes/pmgen/xilinx_dsp_CREG.pmg b/passes/pmgen/xilinx_dsp_CREG.pmg index 5cd34162e..b20e4f458 100644 --- a/passes/pmgen/xilinx_dsp_CREG.pmg +++ b/passes/pmgen/xilinx_dsp_CREG.pmg @@ -1,7 +1,7 @@ // This file describes the second of three pattern matcher setups that // forms the `xilinx_dsp` pass described in xilinx_dsp.cc // At a high level, it works as follows: -// (1) Starting from a DSP48E1 cell that (a) doesn't have a CREG already, +// (1) Starting from a DSP48* cell that (a) doesn't have a CREG already, // and (b) uses the 'C' port // (2) Match the driver of the 'C' input to a possible $dff cell (CREG) // (attached to at most two $mux cells that implement clock-enable or @@ -38,10 +38,10 @@ udata <SigBit> dffclock udata <Cell*> dff dffcemux dffrstmux udata <bool> dffcepol dffrstpol -// (1) Starting from a DSP48E1 cell that (a) doesn't have a CREG already, +// (1) Starting from a DSP48* cell that (a) doesn't have a CREG already, // and (b) uses the 'C' port match dsp - select dsp->type.in(\DSP48E1) + select dsp->type.in(\DSP48A, \DSP48A1, \DSP48E1) select param(dsp, \CREG, 1).as_int() == 0 select nusers(port(dsp, \C, SigSpec())) > 1 endmatch @@ -60,7 +60,8 @@ code sigC sigP clock sigC = unextend(port(dsp, \C, SigSpec())); SigSpec P = port(dsp, \P); - if (param(dsp, \USE_MULT, Const("MULTIPLY")).decode_string() == "MULTIPLY") { + if (!dsp->type.in(\DSP48E1) || + param(dsp, \USE_MULT, Const("MULTIPLY")).decode_string() == "MULTIPLY") { // Only care about those bits that are used int i; for (i = GetSize(P)-1; i >= 0; i--) diff --git a/passes/pmgen/xilinx_dsp_cascade.pmg b/passes/pmgen/xilinx_dsp_cascade.pmg index 7a32df2b7..b14a1ee0a 100644 --- a/passes/pmgen/xilinx_dsp_cascade.pmg +++ b/passes/pmgen/xilinx_dsp_cascade.pmg @@ -62,12 +62,11 @@ code #define MAX_DSP_CASCADE 20 endcode -// (1) Starting from a DSP48E1 cell that (a) has the Z multiplexer -// (controlled by OPMODE[6:4]) set to zero and (b) doesn't already -// use the 'PCOUT' port +// (1) Starting from a DSP48* cell that (a) has the Z multiplexer +// (controlled by OPMODE[3:2] for DSP48A*, by OPMODE[6:4] for DSP48E1) +// set to zero and (b) doesn't already use the 'PCOUT' port match first - select first->type.in(\DSP48E1) - select port(first, \OPMODE, Const(0, 7)).extract(4,3) == Const::from_string("000") + select (first->type.in(\DSP48A, \DSP48A1) && port(first, \OPMODE, Const(0, 8)).extract(2,2) == Const::from_string("00")) || (first->type.in(\DSP48E1) && port(first, \OPMODE, Const(0, 7)).extract(4,3) == Const::from_string("000")) select nusers(port(first, \PCOUT, SigSpec())) <= 1 endmatch @@ -100,14 +99,21 @@ finally add_siguser(cascade, dsp); SigSpec opmode = port(dsp_pcin, \OPMODE, Const(0, 7)); - if (P == 17) - opmode[6] = State::S1; - else if (P == 0) - opmode[6] = State::S0; - else log_abort(); - - opmode[5] = State::S0; - opmode[4] = State::S1; + if (dsp->type.in(\DSP48A, \DSP48A1)) { + log_assert(P == 0); + opmode[3] = State::S0; + opmode[2] = State::S1; + } + else if (dsp->type.in(\DSP48E1)) { + if (P == 17) + opmode[6] = State::S1; + else if (P == 0) + opmode[6] = State::S0; + else log_abort(); + + opmode[5] = State::S0; + opmode[4] = State::S1; + } dsp_pcin->setPort(\OPMODE, opmode); log_debug("PCOUT -> PCIN cascade for %s -> %s\n", log_id(dsp), log_id(dsp_pcin)); @@ -120,21 +126,42 @@ finally add_siguser(cascade, dsp_pcin); add_siguser(cascade, dsp); - dsp->setParam(ID(ACASCREG), AREG); + if (dsp->type.in(\DSP48E1)) + dsp->setParam(ID(ACASCREG), AREG); dsp_pcin->setParam(ID(A_INPUT), Const("CASCADE")); log_debug("ACOUT -> ACIN cascade for %s -> %s\n", log_id(dsp), log_id(dsp_pcin)); } if (BREG >= 0) { Wire *cascade = module->addWire(NEW_ID, 18); - dsp_pcin->setPort(ID(B), Const(0, 18)); - dsp_pcin->setPort(ID(BCIN), cascade); + if (dsp->type.in(\DSP48A, \DSP48A1)) { + // According to UG389 p9 [https://www.xilinx.com/support/documentation/user_guides/ug389.pdf] + // "The DSP48A1 component uses this input when cascading + // BCOUT from an adjacent DSP48A1 slice. The tools then + // translate BCOUT cascading to the dedicated BCIN input + // and set the B_INPUT attribute for implementation." + dsp_pcin->setPort(ID(B), cascade); + } + else { + dsp_pcin->setPort(ID(B), Const(0, 18)); + dsp_pcin->setPort(ID(BCIN), cascade); + } dsp->setPort(ID(BCOUT), cascade); add_siguser(cascade, dsp_pcin); add_siguser(cascade, dsp); - dsp->setParam(ID(BCASCREG), BREG); - dsp_pcin->setParam(ID(B_INPUT), Const("CASCADE")); + if (dsp->type.in(\DSP48E1)) { + dsp->setParam(ID(BCASCREG), BREG); + // According to UG389 p13 [https://www.xilinx.com/support/documentation/user_guides/ug389.pdf] + // "The attribute is only used by place and route tools and + // is not necessary for the users to set for synthesis. The + // attribute is determined by the connection to the B port + // of the DSP48A1 slice. If the B port is connected to the + // BCOUT of another DSP48A1 slice, then the tools automatically + // set the attribute to 'CASCADE', otherwise it is set to + // 'DIRECT'". + dsp_pcin->setParam(ID(B_INPUT), Const("CASCADE")); + } log_debug("BCOUT -> BCIN cascade for %s -> %s\n", log_id(dsp), log_id(dsp_pcin)); } @@ -156,22 +183,21 @@ subpattern tail arg first arg next -// (2.1) Match another DSP48E1 cell that (a) does not have the CREG enabled, +// (2.1) Match another DSP48* cell that (a) does not have the CREG enabled, // (b) has its Z multiplexer output set to the 'C' port, which is // driven by the 'P' output of the previous DSP cell, and (c) has its // 'PCIN' port unused match nextP - select nextP->type.in(\DSP48E1) select !param(nextP, \CREG, State::S1).as_bool() - select port(nextP, \OPMODE, Const(0, 7)).extract(4,3) == Const::from_string("011") + select (nextP->type.in(\DSP48A, \DSP48A1) && port(nextP, \OPMODE, Const(0, 8)).extract(2,2) == Const::from_string("11")) || (nextP->type.in(\DSP48E1) && port(nextP, \OPMODE, Const(0, 7)).extract(4,3) == Const::from_string("011")) select nusers(port(nextP, \C, SigSpec())) > 1 select nusers(port(nextP, \PCIN, SigSpec())) == 0 index <SigBit> port(nextP, \C)[0] === port(std::get<0>(chain.back()), \P)[0] semioptional endmatch -// (2.2) Same as (2.1) but with the 'C' port driven by the 'P' output of the -// previous DSP cell right-shifted by 17 bits +// (2.2) For DSP48E1 only, same as (2.1) but with the 'C' port driven +// by the 'P' output of the previous DSP cell right-shifted by 17 bits match nextP_shift17 if !nextP select nextP_shift17->type.in(\DSP48E1) @@ -188,6 +214,8 @@ code next if (!nextP) next = nextP_shift17; if (next) { + if (next->type != first->type) + reject; unextend = [](const SigSpec &sig) { int i; for (i = GetSize(sig)-1; i > 0; i--) @@ -202,38 +230,50 @@ code next endcode // (3) For this subequent DSP48E1 match (i.e. PCOUT -> PCIN cascade exists) -// if (a) the previous DSP48E1 uses either the A2REG or A1REG, (b) this -// DSP48 does not use A2REG nor A1REG, (c) this DSP48E1 does not already -// have an ACOUT -> ACIN cascade, (d) the previous DSP does not already -// use its ACOUT port, then examine if an ACOUT -> ACIN cascade -// opportunity exists by matching for a $dff-with-optional-clock-enable- -// or-reset and checking that the 'D' input of this register is the same -// as the 'A' input of the previous DSP +// if (a) this DSP48E1 does not already have an ACOUT -> ACIN cascade, +// (b) the previous DSP does not already use its ACOUT port, then +// examine if an ACOUT -> ACIN cascade opportunity exists if +// (i) A ports are identical, or (ii) separated by a +// $dff-with-optional-clock-enable-or-reset and checking that the 'D' input +// of this register is the same as the 'A' input of the previous DSP +// TODO: Check for two levels of flops, instead of just one code argQ clock AREG AREG = -1; - if (next) { + if (next && next->type.in(\DSP48E1)) { Cell *prev = std::get<0>(chain.back()); - if (param(prev, \AREG, 2).as_int() > 0 && - param(next, \AREG, 2).as_int() > 0 && - param(next, \A_INPUT, Const("DIRECT")).decode_string() == "DIRECT" && + + if (param(next, \A_INPUT, Const("DIRECT")).decode_string() == "DIRECT" && + port(next, \ACIN, SigSpec()).is_fully_zero() && nusers(port(prev, \ACOUT, SigSpec())) <= 1) { - argQ = unextend(port(next, \A)); - clock = port(prev, \CLK); - subpattern(in_dffe); - if (dff) { - if (!dffrstmux && port(prev, \RSTA, State::S0) != State::S0) - goto reject_AREG; - if (dffrstmux && port(dffrstmux, \S) != port(prev, \RSTA, State::S0)) - goto reject_AREG; - if (!dffcemux && port(prev, \CEA2, State::S0) != State::S0) - goto reject_AREG; - if (dffcemux && port(dffcemux, \S) != port(prev, \CEA2, State::S0)) - goto reject_AREG; - if (dffD == unextend(port(prev, \A))) - AREG = 1; -reject_AREG: ; + if (param(prev, \AREG, 2) == 0) { + if (port(prev, \A) == port(next, \A)) + AREG = 0; + } + else { + argQ = unextend(port(next, \A)); + clock = port(prev, \CLK); + subpattern(in_dffe); + if (dff) { + if (!dffrstmux && port(prev, \RSTA, State::S0) != State::S0) + goto reject_AREG; + if (dffrstmux && port(dffrstmux, \S) != port(prev, \RSTA, State::S0)) + goto reject_AREG; + IdString CEA; + if (param(prev, \AREG, 2) == 1) + CEA = \CEA2; + else if (param(prev, \AREG, 2) == 2) + CEA = \CEA1; + else log_abort(); + if (!dffcemux && port(prev, CEA, State::S0) != State::S1) + goto reject_AREG; + if (dffcemux && port(dffcemux, \S) != port(prev, CEA, State::S0)) + goto reject_AREG; + if (dffD == unextend(port(prev, \A))) + AREG = 1; + } } } +reject_AREG: ; } endcode @@ -242,28 +282,47 @@ code argQ clock BREG BREG = -1; if (next) { Cell *prev = std::get<0>(chain.back()); - if (param(prev, \BREG, 2).as_int() > 0 && - param(next, \BREG, 2).as_int() > 0 && - param(next, \B_INPUT, Const("DIRECT")).decode_string() == "DIRECT" && + if (param(next, \B_INPUT, Const("DIRECT")).decode_string() == "DIRECT" && port(next, \BCIN, SigSpec()).is_fully_zero() && nusers(port(prev, \BCOUT, SigSpec())) <= 1) { - argQ = unextend(port(next, \B)); - clock = port(prev, \CLK); - subpattern(in_dffe); - if (dff) { - if (!dffrstmux && port(prev, \RSTB, State::S0) != State::S0) - goto reject_BREG; - if (dffrstmux && port(dffrstmux, \S) != port(prev, \RSTB, State::S0)) - goto reject_BREG; - if (!dffcemux && port(prev, \CEB2, State::S0) != State::S0) - goto reject_BREG; - if (dffcemux && port(dffcemux, \S) != port(prev, \CEB2, State::S0)) - goto reject_BREG; - if (dffD == unextend(port(prev, \B))) - BREG = 1; -reject_BREG: ; + if ((next->type.in(\DSP48A, \DSP48A1) && param(prev, \B0REG, 0) == 0 && param(prev, \B1REG, 1) == 0) || + (next->type.in(\DSP48E1) && param(prev, \BREG, 2) == 0)) { + if (port(prev, \B) == port(next, \B)) + BREG = 0; + } + else { + argQ = unextend(port(next, \B)); + clock = port(prev, \CLK); + subpattern(in_dffe); + if (dff) { + if (!dffrstmux && port(prev, \RSTB, State::S0) != State::S0) + goto reject_BREG; + if (dffrstmux && port(dffrstmux, \S) != port(prev, \RSTB, State::S0)) + goto reject_BREG; + IdString CEB; + if (next->type.in(\DSP48A, \DSP48A1)) + CEB = \CEB; + else if (next->type.in(\DSP48E1)) { + if (param(prev, \BREG, 2) == 1) + CEB = \CEB2; + else if (param(prev, \BREG, 2) == 2) + CEB = \CEB1; + else log_abort(); + } + else log_abort(); + if (!dffcemux && port(prev, CEB, State::S0) != State::S1) + goto reject_BREG; + if (dffcemux && port(dffcemux, \S) != port(prev, CEB, State::S0)) + goto reject_BREG; + if (dffD == unextend(port(prev, \B))) { + if (next->type.in(\DSP48A, \DSP48A1) && param(prev, \B0REG, 0) != 0) + goto reject_BREG; + BREG = 1; + } + } } } +reject_BREG: ; } endcode diff --git a/passes/sat/sim.cc b/passes/sat/sim.cc index 4c3022c70..d5634b26d 100644 --- a/passes/sat/sim.cc +++ b/passes/sat/sim.cc @@ -230,7 +230,7 @@ struct SimInstance bool did_something = false; sig = sigmap(sig); - log_assert(GetSize(sig) == GetSize(value)); + log_assert(GetSize(sig) <= GetSize(value)); for (int i = 0; i < GetSize(sig); i++) if (state_nets.at(sig[i]) != value[i]) { diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index 9b156a2af..50bae5e85 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -29,17 +29,17 @@ // Kahn, Arthur B. (1962), "Topological sorting of large networks", Communications of the ACM 5 (11): 558-562, doi:10.1145/368996.369025 // http://en.wikipedia.org/wiki/Topological_sorting -#define ABC_COMMAND_LIB "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put" -#define ABC_COMMAND_CTR "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put; buffer; upsize {D}; dnsize {D}; stime -p" -#define ABC_COMMAND_LUT "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; dch -f; if; mfs2" -#define ABC_COMMAND_SOP "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; dch -f; cover {I} {P}" -#define ABC_COMMAND_DFL "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put" - -#define ABC_FAST_COMMAND_LIB "strash; dretime; retime {D}; map {D}" -#define ABC_FAST_COMMAND_CTR "strash; dretime; retime {D}; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" -#define ABC_FAST_COMMAND_LUT "strash; dretime; retime {D}; if" -#define ABC_FAST_COMMAND_SOP "strash; dretime; retime {D}; cover -I {I} -P {P}" -#define ABC_FAST_COMMAND_DFL "strash; dretime; retime {D}; map" +#define ABC_COMMAND_LIB "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put" +#define ABC_COMMAND_CTR "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put; buffer; upsize {D}; dnsize {D}; stime -p" +#define ABC_COMMAND_LUT "strash; ifraig; scorr; dc2; dretime; strash; dch -f; if; mfs2" +#define ABC_COMMAND_SOP "strash; ifraig; scorr; dc2; dretime; strash; dch -f; cover {I} {P}" +#define ABC_COMMAND_DFL "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put" + +#define ABC_FAST_COMMAND_LIB "strash; dretime; map {D}" +#define ABC_FAST_COMMAND_CTR "strash; dretime; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" +#define ABC_FAST_COMMAND_LUT "strash; dretime; if" +#define ABC_FAST_COMMAND_SOP "strash; dretime; cover -I {I} -P {P}" +#define ABC_FAST_COMMAND_DFL "strash; dretime; map" #include "kernel/register.h" #include "kernel/sigtools.h" @@ -749,6 +749,10 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin else abc_script += fast_mode ? ABC_FAST_COMMAND_DFL : ABC_COMMAND_DFL; + if (script_file.empty() && !delay_target.empty()) + for (size_t pos = abc_script.find("dretime;"); pos != std::string::npos; pos = abc_script.find("dretime;", pos+1)) + abc_script = abc_script.substr(0, pos) + "dretime; retime -o {D};" + abc_script.substr(pos+8); + for (size_t pos = abc_script.find("{D}"); pos != std::string::npos; pos = abc_script.find("{D}", pos)) abc_script = abc_script.substr(0, pos) + delay_target + abc_script.substr(pos+3); @@ -1769,7 +1773,7 @@ struct AbcPass : public Pass { extra_args(args, argidx, design); if (!lut_costs.empty() && !liberty_file.empty()) - log_cmd_error("Got -lut and -liberty! This two options are exclusive.\n"); + log_cmd_error("Got -lut and -liberty! These two options are exclusive.\n"); if (!constr_file.empty() && liberty_file.empty()) log_cmd_error("Got -constr but no -liberty!\n"); diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc index 96642de54..dd73d53a9 100644 --- a/passes/techmap/abc9.cc +++ b/passes/techmap/abc9.cc @@ -985,29 +985,28 @@ struct Abc9Pass : public Pass { //} if (arg == "-lut" && argidx+1 < args.size()) { string arg = args[++argidx]; - size_t pos = arg.find_first_of(':'); - int lut_mode = 0, lut_mode2 = 0; - if (pos != string::npos) { - lut_mode = atoi(arg.substr(0, pos).c_str()); - lut_mode2 = atoi(arg.substr(pos+1).c_str()); - } else { - pos = arg.find_first_of('.'); + if (arg.find_first_not_of("0123456789:") == std::string::npos) { + size_t pos = arg.find_first_of(':'); + int lut_mode = 0, lut_mode2 = 0; if (pos != string::npos) { - lut_file = arg; - rewrite_filename(lut_file); - if (!lut_file.empty() && !is_absolute_path(lut_file)) - lut_file = std::string(pwd) + "/" + lut_file; - } - else { + lut_mode = atoi(arg.substr(0, pos).c_str()); + lut_mode2 = atoi(arg.substr(pos+1).c_str()); + } else { lut_mode = atoi(arg.c_str()); lut_mode2 = lut_mode; } + lut_costs.clear(); + for (int i = 0; i < lut_mode; i++) + lut_costs.push_back(1); + for (int i = lut_mode; i < lut_mode2; i++) + lut_costs.push_back(2 << (i - lut_mode)); + } + else { + lut_file = arg; + rewrite_filename(lut_file); + if (!lut_file.empty() && !is_absolute_path(lut_file) && lut_file[0] != '+') + lut_file = std::string(pwd) + "/" + lut_file; } - lut_costs.clear(); - for (int i = 0; i < lut_mode; i++) - lut_costs.push_back(1); - for (int i = lut_mode; i < lut_mode2; i++) - lut_costs.push_back(2 << (i - lut_mode)); continue; } if (arg == "-luts" && argidx+1 < args.size()) { @@ -1076,7 +1075,7 @@ struct Abc9Pass : public Pass { box_file = "+/dummy.box"; rewrite_filename(box_file); - if (!box_file.empty() && !is_absolute_path(box_file)) + if (!box_file.empty() && !is_absolute_path(box_file) && box_file[0] != '+') box_file = std::string(pwd) + "/" + box_file; dict<int,IdString> box_lookup; diff --git a/passes/techmap/iopadmap.cc b/passes/techmap/iopadmap.cc index 90cfef71e..531ac2b99 100644 --- a/passes/techmap/iopadmap.cc +++ b/passes/techmap/iopadmap.cc @@ -192,11 +192,28 @@ struct IopadmapPass : public Pass { if (!toutpad_celltype.empty() || !tinoutpad_celltype.empty()) { dict<SigBit, Cell *> tbuf_bits; + pool<SigBit> driven_bits; + // Gather tristate buffers and always-on drivers. for (auto cell : module->cells()) if (cell->type == ID($_TBUF_)) { SigBit bit = cell->getPort(ID::Y).as_bit(); tbuf_bits[bit] = cell; + } else { + for (auto port : cell->connections()) + if (!cell->known() || cell->output(port.first)) + for (auto bit : port.second) + driven_bits.insert(bit); + } + + // If a wire is a target of an assignment, it is driven, unless the source is 'z. + for (auto &conn : module->connections()) + for (int i = 0; i < GetSize(conn.first); i++) { + SigBit dstbit = conn.first[i]; + SigBit srcbit = conn.second[i]; + if (!srcbit.wire && srcbit.data == State::Sz) + continue; + driven_bits.insert(dstbit); } for (auto wire : module->selected_wires()) @@ -204,41 +221,71 @@ struct IopadmapPass : public Pass { if (!wire->port_output) continue; + // Don't handle inout ports if we have no suitable buffer type. + if (wire->port_input && tinoutpad_celltype.empty()) + continue; + + // likewise for output ports. + if (!wire->port_input && toutpad_celltype.empty()) + continue; + for (int i = 0; i < GetSize(wire); i++) { SigBit wire_bit(wire, i); + Cell *tbuf_cell = nullptr; - if (tbuf_bits.count(wire_bit) == 0) + if (skip_wire_bits.count(wire_bit)) continue; - Cell *tbuf_cell = tbuf_bits.at(wire_bit); - - if (tbuf_cell == nullptr) - continue; - - SigBit en_sig = tbuf_cell->getPort(ID(E)).as_bit(); - SigBit data_sig = tbuf_cell->getPort(ID::A).as_bit(); + if (tbuf_bits.count(wire_bit)) + tbuf_cell = tbuf_bits.at(wire_bit); + + SigBit en_sig; + SigBit data_sig; + bool is_driven = driven_bits.count(wire_bit); + + if (tbuf_cell != nullptr) { + // Found a tristate buffer — use it. + en_sig = tbuf_cell->getPort(ID(E)).as_bit(); + data_sig = tbuf_cell->getPort(ID::A).as_bit(); + } else if (is_driven) { + // No tristate buffer, but an always-on driver is present. + // If this is an inout port, we're creating a tinoutpad + // anyway, just with a constant 1 as enable. + if (!wire->port_input) + continue; + en_sig = SigBit(State::S1); + data_sig = wire_bit; + } else { + // No driver on a wire. Create a tristate pad with always-0 + // enable. + en_sig = SigBit(State::S0); + data_sig = SigBit(State::Sx); + } - if (wire->port_input && !tinoutpad_celltype.empty()) + if (wire->port_input) { log("Mapping port %s.%s[%d] using %s.\n", log_id(module), log_id(wire), i, tinoutpad_celltype.c_str()); Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(tinoutpad_celltype)); cell->setPort(RTLIL::escape_id(tinoutpad_portname_oe), en_sig); - cell->setPort(RTLIL::escape_id(tinoutpad_portname_o), wire_bit); - cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), data_sig); cell->attributes[ID::keep] = RTLIL::Const(1); - module->remove(tbuf_cell); + if (tbuf_cell) { + module->remove(tbuf_cell); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_o), wire_bit); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), data_sig); + } else if (is_driven) { + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), wire_bit); + } else { + cell->setPort(RTLIL::escape_id(tinoutpad_portname_o), wire_bit); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), data_sig); + } skip_wire_bits.insert(wire_bit); if (!tinoutpad_portname_pad.empty()) rewrite_bits[wire][i] = make_pair(cell, RTLIL::escape_id(tinoutpad_portname_pad)); - continue; - } - - if (!wire->port_input && !toutpad_celltype.empty()) - { + } else { log("Mapping port %s.%s[%d] using %s.\n", log_id(module), log_id(wire), i, toutpad_celltype.c_str()); Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(toutpad_celltype)); @@ -247,12 +294,13 @@ struct IopadmapPass : public Pass { cell->setPort(RTLIL::escape_id(toutpad_portname_i), data_sig); cell->attributes[ID::keep] = RTLIL::Const(1); - module->remove(tbuf_cell); - module->connect(wire_bit, data_sig); + if (tbuf_cell) { + module->remove(tbuf_cell); + module->connect(wire_bit, data_sig); + } skip_wire_bits.insert(wire_bit); if (!toutpad_portname_pad.empty()) rewrite_bits[wire][i] = make_pair(cell, RTLIL::escape_id(toutpad_portname_pad)); - continue; } } } diff --git a/techlibs/achronix/synth_achronix.cc b/techlibs/achronix/synth_achronix.cc index 626860d9c..1dc6bdb2f 100755 --- a/techlibs/achronix/synth_achronix.cc +++ b/techlibs/achronix/synth_achronix.cc @@ -52,7 +52,7 @@ struct SynthAchronixPass : public ScriptPass { log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -152,12 +152,12 @@ struct SynthAchronixPass : public ScriptPass { run("clean -purge"); run("setundef -undriven -zero"); if (retime || help_mode) - run("abc -markgroups -dff", "(only if -retime)"); + run("abc -markgroups -dff -D 1", "(only if -retime)"); } if (check_label("map_luts")) { - run("abc -lut 4" + string(retime ? " -dff" : "")); + run("abc -lut 4" + string(retime ? " -dff -D 1" : "")); run("clean"); } diff --git a/techlibs/anlogic/Makefile.inc b/techlibs/anlogic/Makefile.inc index 9426b5ca5..2d8d65e2e 100644 --- a/techlibs/anlogic/Makefile.inc +++ b/techlibs/anlogic/Makefile.inc @@ -7,6 +7,6 @@ $(eval $(call add_share_file,share/anlogic,techlibs/anlogic/cells_map.v)) $(eval $(call add_share_file,share/anlogic,techlibs/anlogic/arith_map.v)) $(eval $(call add_share_file,share/anlogic,techlibs/anlogic/cells_sim.v)) $(eval $(call add_share_file,share/anlogic,techlibs/anlogic/eagle_bb.v)) -$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/drams.txt)) -$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/drams_map.v)) -$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/dram_init_16x4.vh)) +$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/lutrams.txt)) +$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/lutrams_map.v)) +$(eval $(call add_share_file,share/anlogic,techlibs/anlogic/lutram_init_16x4.vh)) diff --git a/techlibs/anlogic/cells_map.v b/techlibs/anlogic/cells_map.v index cfc743a4b..8ac087d9d 100644 --- a/techlibs/anlogic/cells_map.v +++ b/techlibs/anlogic/cells_map.v @@ -6,14 +6,14 @@ module \$_DFFE_NP_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REG module \$_DFFE_PN_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(1'b0)); endmodule module \$_DFFE_PP_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(1'b0)); endmodule -module \$_DFF_NN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_NN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_NP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_NP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_PN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C) , .ce(1'b1), .sr(R)); endmodule -module \$_DFF_PN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_PP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule -module \$_DFF_PP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_NN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_NN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_NP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_NP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_PN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C) , .ce(1'b1), .sr(R)); endmodule +module \$_DFF_PN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_PP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule +module \$_DFF_PP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule module \$_DLATCH_N_ (E, D, Q); wire [1023:0] _TECHMAP_DO_ = "simplemap; opt"; diff --git a/techlibs/anlogic/dram_init_16x4.vh b/techlibs/anlogic/lutram_init_16x4.vh index 32fb1578c..32fb1578c 100644 --- a/techlibs/anlogic/dram_init_16x4.vh +++ b/techlibs/anlogic/lutram_init_16x4.vh diff --git a/techlibs/anlogic/drams.txt b/techlibs/anlogic/lutrams.txt index 4e903c0a2..4e903c0a2 100644 --- a/techlibs/anlogic/drams.txt +++ b/techlibs/anlogic/lutrams.txt diff --git a/techlibs/anlogic/drams_map.v b/techlibs/anlogic/lutrams_map.v index 084e2a25f..5a464cafc 100644 --- a/techlibs/anlogic/drams_map.v +++ b/techlibs/anlogic/lutrams_map.v @@ -10,7 +10,7 @@ module \$__ANLOGIC_DRAM16X4 (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); input B1EN; EG_LOGIC_DRAM16X4 #( - `include "dram_init_16x4.vh" + `include "lutram_init_16x4.vh" ) _TECHMAP_REPLACE_ ( .di(B1DATA), .waddr(B1ADDR), diff --git a/techlibs/anlogic/synth_anlogic.cc b/techlibs/anlogic/synth_anlogic.cc index b87fc8566..aaa6bda4a 100644 --- a/techlibs/anlogic/synth_anlogic.cc +++ b/techlibs/anlogic/synth_anlogic.cc @@ -58,7 +58,10 @@ struct SynthAnlogicPass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); + log("\n"); + log(" -nolutram\n"); + log(" do not use EG_LOGIC_DRAM16X4 cells in output netlist\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -67,7 +70,7 @@ struct SynthAnlogicPass : public ScriptPass } string top_opt, edif_file, json_file; - bool flatten, retime; + bool flatten, retime, nolutram; void clear_flags() YS_OVERRIDE { @@ -76,6 +79,7 @@ struct SynthAnlogicPass : public ScriptPass json_file = ""; flatten = true; retime = false; + nolutram = false; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -110,6 +114,10 @@ struct SynthAnlogicPass : public ScriptPass flatten = false; continue; } + if (args[argidx] == "-nolutram") { + nolutram = true; + continue; + } if (args[argidx] == "-retime") { retime = true; continue; @@ -150,21 +158,25 @@ struct SynthAnlogicPass : public ScriptPass run("synth -run coarse"); } - if (check_label("dram")) + if (!nolutram && check_label("map_lutram", "(skip if -nolutram)")) { - run("memory_bram -rules +/anlogic/drams.txt"); - run("techmap -map +/anlogic/drams_map.v"); + run("memory_bram -rules +/anlogic/lutrams.txt"); + run("techmap -map +/anlogic/lutrams_map.v"); run("setundef -zero -params t:EG_LOGIC_DRAM16X4"); } - if (check_label("fine")) + if (check_label("map_ffram")) { run("opt -fast -mux_undef -undriven -fine"); run("memory_map"); run("opt -undriven -fine"); + } + + if (check_label("map_gates")) + { run("techmap -map +/techmap.v -map +/anlogic/arith_map.v"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); } if (check_label("map_ffs")) @@ -187,7 +199,7 @@ struct SynthAnlogicPass : public ScriptPass run("techmap -map +/anlogic/cells_map.v"); run("clean"); } - + if (check_label("map_anlogic")) { run("anlogic_fixcarry"); diff --git a/techlibs/coolrunner2/synth_coolrunner2.cc b/techlibs/coolrunner2/synth_coolrunner2.cc index 014c68622..388e2b792 100644 --- a/techlibs/coolrunner2/synth_coolrunner2.cc +++ b/techlibs/coolrunner2/synth_coolrunner2.cc @@ -55,7 +55,7 @@ struct SynthCoolrunner2Pass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -161,7 +161,7 @@ struct SynthCoolrunner2Pass : public ScriptPass if (check_label("map_pla")) { - run("abc -sop -I 40 -P 56"); + run("abc -sop -I 40 -P 56" + string(retime ? " -dff -D 1" : "")); run("clean"); } diff --git a/techlibs/easic/synth_easic.cc b/techlibs/easic/synth_easic.cc index dd9e3dab7..b4a3a1ac9 100644 --- a/techlibs/easic/synth_easic.cc +++ b/techlibs/easic/synth_easic.cc @@ -56,7 +56,7 @@ struct SynthEasicPass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -158,7 +158,7 @@ struct SynthEasicPass : public ScriptPass run("techmap"); run("opt -fast"); if (retime || help_mode) { - run("abc -dff", " (only if -retime)"); + run("abc -dff -D 1", " (only if -retime)"); run("opt_clean", "(only if -retime)"); } } diff --git a/techlibs/ecp5/Makefile.inc b/techlibs/ecp5/Makefile.inc index 46463f510..2c33f23b9 100644 --- a/techlibs/ecp5/Makefile.inc +++ b/techlibs/ecp5/Makefile.inc @@ -8,9 +8,9 @@ $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/cells_map.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/cells_sim.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/cells_bb.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/lutrams_map.v)) -$(eval $(call add_share_file,share/ecp5,techlibs/ecp5/lutram.txt)) +$(eval $(call add_share_file,share/ecp5,techlibs/ecp5/lutrams.txt)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/brams_map.v)) -$(eval $(call add_share_file,share/ecp5,techlibs/ecp5/bram.txt)) +$(eval $(call add_share_file,share/ecp5,techlibs/ecp5/brams.txt)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/arith_map.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/latches_map.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/dsp_map.v)) diff --git a/techlibs/ecp5/bram.txt b/techlibs/ecp5/brams.txt index 777ccaa2e..777ccaa2e 100644 --- a/techlibs/ecp5/bram.txt +++ b/techlibs/ecp5/brams.txt diff --git a/techlibs/ecp5/cells_map.v b/techlibs/ecp5/cells_map.v index 71ae9237b..10e89a3e0 100644 --- a/techlibs/ecp5/cells_map.v +++ b/techlibs/ecp5/cells_map.v @@ -47,6 +47,21 @@ module \$__DFFSE_NP1 (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), . module \$__DFFSE_PP0 (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE")) _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); endmodule module \$__DFFSE_PP1 (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE")) _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); endmodule +`ifdef ASYNC_PRLD +module \$_DLATCH_N_ (input E, input D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.LSR(!E), .DI(1'b0), .M(D), .Q(Q)); endmodule +module \$_DLATCH_P_ (input E, input D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.LSR(E), .DI(1'b0), .M(D), .Q(Q)); endmodule + +module \$_DFFSR_NNN_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("INV"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(!S || !R), .DI(D), .M(R), .Q(Q)); endmodule +module \$_DFFSR_NNP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("INV"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(!S || R), .DI(D), .M(!R), .Q(Q)); endmodule +module \$_DFFSR_NPN_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("INV"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || !R), .DI(D), .M(R), .Q(Q)); endmodule +module \$_DFFSR_NPP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("INV"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || R), .DI(D), .M(!R), .Q(Q)); endmodule + +module \$_DFFSR_PNN_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(!S || !R), .DI(D), .M(R), .Q(Q)); endmodule +module \$_DFFSR_PNP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(!S || R), .DI(D), .M(!R), .Q(Q)); endmodule +module \$_DFFSR_PPN_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || !R), .DI(D), .M(R), .Q(Q)); endmodule +module \$_DFFSR_PPP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || R), .DI(D), .M(!R), .Q(Q)); endmodule +`endif + `include "cells_ff.vh" `include "cells_io.vh" diff --git a/techlibs/ecp5/cells_sim.v b/techlibs/ecp5/cells_sim.v index f467218cc..0d3ec4e5b 100644 --- a/techlibs/ecp5/cells_sim.v +++ b/techlibs/ecp5/cells_sim.v @@ -1,5 +1,6 @@ // --------------------------------------- +(* lib_whitebox *) module LUT4(input A, B, C, D, output Z); parameter [15:0] INIT = 16'h0000; wire [7:0] s3 = D ? INIT[15:8] : INIT[7:0]; @@ -31,13 +32,8 @@ module CCU2C( // First half wire LUT4_0, LUT2_0; -`ifdef _ABC - assign LUT4_0 = INIT0[{D0, C0, B0, A0}]; - assign LUT2_0 = INIT0[{2'b00, B0, A0}]; -`else LUT4 #(.INIT(INIT0)) lut4_0(.A(A0), .B(B0), .C(C0), .D(D0), .Z(LUT4_0)); LUT2 #(.INIT(INIT0[3:0])) lut2_0(.A(A0), .B(B0), .Z(LUT2_0)); -`endif wire gated_cin_0 = (INJECT1_0 == "YES") ? 1'b0 : CIN; assign S0 = LUT4_0 ^ gated_cin_0; @@ -46,13 +42,8 @@ module CCU2C( // Second half wire LUT4_1, LUT2_1; -`ifdef _ABC - assign LUT4_1 = INIT1[{D1, C1, B1, A1}]; - assign LUT2_1 = INIT1[{2'b00, B1, A1}]; -`else LUT4 #(.INIT(INIT1)) lut4_1(.A(A1), .B(B1), .C(C1), .D(D1), .Z(LUT4_1)); LUT2 #(.INIT(INIT1[3:0])) lut2_1(.A(A1), .B(B1), .Z(LUT2_1)); -`endif wire gated_cin_1 = (INJECT1_1 == "YES") ? 1'b0 : cout_0; assign S1 = LUT4_1 ^ gated_cin_1; @@ -209,6 +200,7 @@ endmodule // --------------------------------------- +(* lib_whitebox *) module LUT2(input A, B, output Z); parameter [3:0] INIT = 4'h0; wire [1:0] s1 = B ? INIT[ 3:2] : INIT[1:0]; diff --git a/techlibs/ecp5/lutram.txt b/techlibs/ecp5/lutrams.txt index b94357429..b94357429 100644 --- a/techlibs/ecp5/lutram.txt +++ b/techlibs/ecp5/lutrams.txt diff --git a/techlibs/ecp5/synth_ecp5.cc b/techlibs/ecp5/synth_ecp5.cc index 4cbb56ea1..d616391b2 100644 --- a/techlibs/ecp5/synth_ecp5.cc +++ b/techlibs/ecp5/synth_ecp5.cc @@ -62,7 +62,7 @@ struct SynthEcp5Pass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log(" -noccu2\n"); log(" do not use CCU2 cells in output netlist\n"); @@ -79,6 +79,9 @@ struct SynthEcp5Pass : public ScriptPass log(" -nowidelut\n"); log(" do not use PFU muxes to implement LUTs larger than LUT4s\n"); log("\n"); + log(" -asyncprld\n"); + log(" use async PRLD mode to implement DLATCH and DFFSR (EXPERIMENTAL)\n"); + log("\n"); log(" -abc2\n"); log(" run two passes of 'abc' for slightly improved logic density\n"); log("\n"); @@ -99,7 +102,7 @@ struct SynthEcp5Pass : public ScriptPass } string top_opt, blif_file, edif_file, json_file; - bool noccu2, nodffe, nobram, nolutram, nowidelut, flatten, retime, abc2, abc9, nodsp, vpr; + bool noccu2, nodffe, nobram, nolutram, nowidelut, asyncprld, flatten, retime, abc2, abc9, nodsp, vpr; void clear_flags() YS_OVERRIDE { @@ -112,6 +115,7 @@ struct SynthEcp5Pass : public ScriptPass nobram = false; nolutram = false; nowidelut = false; + asyncprld = false; flatten = true; retime = false; abc2 = false; @@ -176,6 +180,10 @@ struct SynthEcp5Pass : public ScriptPass nobram = true; continue; } + if (args[argidx] == "-asyncprld") { + asyncprld = true; + continue; + } if (args[argidx] == "-nolutram" || /*deprecated alias*/ args[argidx] == "-nodram") { nolutram = true; continue; @@ -222,7 +230,7 @@ struct SynthEcp5Pass : public ScriptPass { if (check_label("begin")) { - run("read_verilog -D_ABC -lib +/ecp5/cells_sim.v +/ecp5/cells_bb.v"); + run("read_verilog -lib +/ecp5/cells_sim.v +/ecp5/cells_bb.v"); run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str())); } @@ -258,13 +266,13 @@ struct SynthEcp5Pass : public ScriptPass if (!nobram && check_label("map_bram", "(skip if -nobram)")) { - run("memory_bram -rules +/ecp5/bram.txt"); + run("memory_bram -rules +/ecp5/brams.txt"); run("techmap -map +/ecp5/brams_map.v"); } if (!nolutram && check_label("map_lutram", "(skip if -nolutram)")) { - run("memory_bram -rules +/ecp5/lutram.txt"); + run("memory_bram -rules +/ecp5/lutrams.txt"); run("techmap -map +/ecp5/lutrams_map.v"); } @@ -282,7 +290,7 @@ struct SynthEcp5Pass : public ScriptPass else run("techmap -map +/techmap.v -map +/ecp5/arith_map.v"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); } if (check_label("map_ffs")) @@ -292,7 +300,7 @@ struct SynthEcp5Pass : public ScriptPass run("opt_clean"); if (!nodffe) run("dff2dffe -direct-match $_DFF_* -direct-match $__DFFS_*"); - run("techmap -D NO_LUT -map +/ecp5/cells_map.v"); + run(stringf("techmap -D NO_LUT %s -map +/ecp5/cells_map.v", help_mode ? "[-D ASYNC_PRLD]" : (asyncprld ? "-D ASYNC_PRLD" : ""))); run("opt_expr -undriven -mux_undef"); run("simplemap"); run("ecp5_ffinit"); @@ -306,10 +314,11 @@ struct SynthEcp5Pass : public ScriptPass if (abc2 || help_mode) { run("abc", " (only if -abc2)"); } - std::string techmap_args = "-map +/ecp5/latches_map.v"; + std::string techmap_args = asyncprld ? "" : "-map +/ecp5/latches_map.v"; if (abc9) techmap_args += " -map +/ecp5/abc9_map.v -max_iter 1"; - run("techmap " + techmap_args); + if (!asyncprld || abc9) + run("techmap " + techmap_args); if (abc9) { run("read_verilog -icells -lib +/ecp5/abc9_model.v"); diff --git a/techlibs/efinix/Makefile.inc b/techlibs/efinix/Makefile.inc index 5013f7fc1..69665982c 100644 --- a/techlibs/efinix/Makefile.inc +++ b/techlibs/efinix/Makefile.inc @@ -7,4 +7,4 @@ $(eval $(call add_share_file,share/efinix,techlibs/efinix/cells_map.v)) $(eval $(call add_share_file,share/efinix,techlibs/efinix/arith_map.v)) $(eval $(call add_share_file,share/efinix,techlibs/efinix/cells_sim.v)) $(eval $(call add_share_file,share/efinix,techlibs/efinix/brams_map.v)) -$(eval $(call add_share_file,share/efinix,techlibs/efinix/bram.txt)) +$(eval $(call add_share_file,share/efinix,techlibs/efinix/brams.txt)) diff --git a/techlibs/efinix/bram.txt b/techlibs/efinix/brams.txt index 0b3fd9308..0b3fd9308 100644 --- a/techlibs/efinix/bram.txt +++ b/techlibs/efinix/brams.txt diff --git a/techlibs/efinix/synth_efinix.cc b/techlibs/efinix/synth_efinix.cc index 26a8d4eda..0efd91708 100644 --- a/techlibs/efinix/synth_efinix.cc +++ b/techlibs/efinix/synth_efinix.cc @@ -58,7 +58,10 @@ struct SynthEfinixPass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); + log("\n"); + log(" -nobram\n"); + log(" do not use EFX_RAM_5K cells in output netlist\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -67,7 +70,7 @@ struct SynthEfinixPass : public ScriptPass } string top_opt, edif_file, json_file; - bool flatten, retime; + bool flatten, retime, nobram; void clear_flags() YS_OVERRIDE { @@ -76,6 +79,7 @@ struct SynthEfinixPass : public ScriptPass json_file = ""; flatten = true; retime = false; + nobram = false; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -114,6 +118,10 @@ struct SynthEfinixPass : public ScriptPass retime = true; continue; } + if (args[argidx] == "-nobram") { + nobram = true; + continue; + } break; } extra_args(args, argidx, design); @@ -150,21 +158,25 @@ struct SynthEfinixPass : public ScriptPass run("synth -run coarse"); } - if (check_label("map_bram", "(skip if -nobram)")) + if (!nobram || check_label("map_bram", "(skip if -nobram)")) { - run("memory_bram -rules +/efinix/bram.txt"); + run("memory_bram -rules +/efinix/brams.txt"); run("techmap -map +/efinix/brams_map.v"); run("setundef -zero -params t:EFX_RAM_5K"); } - if (check_label("fine")) + if (check_label("map_ffram")) { run("opt -fast -mux_undef -undriven -fine"); run("memory_map"); run("opt -undriven -fine"); + } + + if (check_label("map_gates")) + { run("techmap -map +/techmap.v -map +/efinix/arith_map.v"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); } if (check_label("map_ffs")) @@ -194,7 +206,7 @@ struct SynthEfinixPass : public ScriptPass run("efinix_fixcarry"); run("clean"); } - + if (check_label("check")) { run("hierarchy -check"); diff --git a/techlibs/gowin/Makefile.inc b/techlibs/gowin/Makefile.inc index d2853704b..fe5d9d6e6 100644 --- a/techlibs/gowin/Makefile.inc +++ b/techlibs/gowin/Makefile.inc @@ -7,9 +7,9 @@ $(eval $(call add_share_file,share/gowin,techlibs/gowin/cells_map.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/cells_sim.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/arith_map.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_map.v)) -$(eval $(call add_share_file,share/gowin,techlibs/gowin/bram.txt)) -$(eval $(call add_share_file,share/gowin,techlibs/gowin/drams_map.v)) -$(eval $(call add_share_file,share/gowin,techlibs/gowin/dram.txt)) +$(eval $(call add_share_file,share/gowin,techlibs/gowin/brams.txt)) +$(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams_map.v)) +$(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams.txt)) diff --git a/techlibs/gowin/bram.txt b/techlibs/gowin/brams.txt index e406f9c51..e406f9c51 100644 --- a/techlibs/gowin/bram.txt +++ b/techlibs/gowin/brams.txt diff --git a/techlibs/gowin/dram.txt b/techlibs/gowin/lutrams.txt index 9db530251..9db530251 100644 --- a/techlibs/gowin/dram.txt +++ b/techlibs/gowin/lutrams.txt diff --git a/techlibs/gowin/drams_map.v b/techlibs/gowin/lutrams_map.v index a50ab365a..a50ab365a 100644 --- a/techlibs/gowin/drams_map.v +++ b/techlibs/gowin/lutrams_map.v diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc index 6cf058f29..c5b41b503 100644 --- a/techlibs/gowin/synth_gowin.cc +++ b/techlibs/gowin/synth_gowin.cc @@ -55,23 +55,23 @@ struct SynthGowinPass : public ScriptPass log(" -nobram\n"); log(" do not use BRAM cells in output netlist\n"); log("\n"); - log(" -nodram\n"); + log(" -nolutram\n"); log(" do not use distributed RAM cells in output netlist\n"); log("\n"); log(" -noflatten\n"); log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log(" -nowidelut\n"); log(" do not use muxes to implement LUTs larger than LUT4s\n"); log("\n"); log(" -noiopads\n"); log(" do not emit IOB at top level ports\n"); - log("\n"); - log(" -abc9\n"); - log(" use new ABC9 flow (EXPERIMENTAL)\n"); + //log("\n"); + //log(" -abc9\n"); + //log(" use new ABC9 flow (EXPERIMENTAL)\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -80,7 +80,7 @@ struct SynthGowinPass : public ScriptPass } string top_opt, vout_file; - bool retime, nobram, nodram, flatten, nodffe, nowidelut, abc9, noiopads; + bool retime, nobram, nolutram, flatten, nodffe, nowidelut, abc9, noiopads; void clear_flags() YS_OVERRIDE { @@ -90,7 +90,7 @@ struct SynthGowinPass : public ScriptPass flatten = true; nobram = false; nodffe = false; - nodram = false; + nolutram = false; nowidelut = false; abc9 = false; noiopads = false; @@ -128,8 +128,8 @@ struct SynthGowinPass : public ScriptPass nobram = true; continue; } - if (args[argidx] == "-nodram") { - nodram = true; + if (args[argidx] == "-nolutram" || /*deprecated*/args[argidx] == "-nodram") { + nolutram = true; continue; } if (args[argidx] == "-nodffe") { @@ -144,10 +144,10 @@ struct SynthGowinPass : public ScriptPass nowidelut = true; continue; } - if (args[argidx] == "-abc9") { - abc9 = true; - continue; - } + //if (args[argidx] == "-abc9") { + // abc9 = true; + // continue; + //} if (args[argidx] == "-noiopads") { noiopads = true; continue; @@ -188,28 +188,32 @@ struct SynthGowinPass : public ScriptPass run("synth -run coarse"); } - if (!nobram && check_label("bram", "(skip if -nobram)")) + if (!nobram && check_label("map_bram", "(skip if -nobram)")) { - run("memory_bram -rules +/gowin/bram.txt"); + run("memory_bram -rules +/gowin/brams.txt"); run("techmap -map +/gowin/brams_map.v -map +/gowin/cells_sim.v"); } - if (!nodram && check_label("dram", "(skip if -nodram)")) + if (!nolutram && check_label("map_lutram", "(skip if -nolutram)")) { - run("memory_bram -rules +/gowin/dram.txt"); - run("techmap -map +/gowin/drams_map.v"); + run("memory_bram -rules +/gowin/lutrams.txt"); + run("techmap -map +/gowin/lutrams_map.v"); run("determine_init"); } - if (check_label("fine")) + if (check_label("map_ffram")) { run("opt -fast -mux_undef -undriven -fine"); run("memory_map"); run("opt -undriven -fine"); + } + + if (check_label("map_gates")) + { run("techmap -map +/techmap.v -map +/gowin/arith_map.v"); run("techmap -map +/techmap.v"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); run("splitnets"); } @@ -227,13 +231,13 @@ struct SynthGowinPass : public ScriptPass if (check_label("map_luts")) { - if (nowidelut && abc9) { + /*if (nowidelut && abc9) { run("abc9 -lut 4"); - } else if (nowidelut && !abc9) { + } else*/ if (nowidelut && !abc9) { run("abc -lut 4"); - } else if (!nowidelut && abc9) { + } else /*if (!nowidelut && abc9) { run("abc9 -lut 4:8"); - } else if (!nowidelut && !abc9) { + } else*/ if (!nowidelut && !abc9) { run("abc -lut 4:8"); } run("clean"); @@ -248,7 +252,6 @@ struct SynthGowinPass : public ScriptPass run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O " "-toutpad TBUF OEN:I:O -tinoutpad IOBUF OEN:O:I:IO", "(unless -noiopads)"); run("clean"); - } if (check_label("check")) diff --git a/techlibs/greenpak4/synth_greenpak4.cc b/techlibs/greenpak4/synth_greenpak4.cc index eeb001b46..e1fbe6b69 100644 --- a/techlibs/greenpak4/synth_greenpak4.cc +++ b/techlibs/greenpak4/synth_greenpak4.cc @@ -59,7 +59,7 @@ struct SynthGreenPAK4Pass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -165,7 +165,7 @@ struct SynthGreenPAK4Pass : public ScriptPass run("dfflibmap -prepare -liberty +/greenpak4/gp_dff.lib"); run("opt -fast"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); } if (check_label("map_luts")) diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index ed7a16c08..463c2063a 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -65,7 +65,7 @@ struct SynthIce40Pass : public ScriptPass log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log(" -nocarry\n"); log(" do not use SB_CARRY cells in output netlist\n"); @@ -316,7 +316,7 @@ struct SynthIce40Pass : public ScriptPass run("techmap -map +/techmap.v -map +/ice40/arith_map.v"); } if (retime || help_mode) - run(abc + " -dff", "(only if -retime)"); + run(abc + " -dff -D 1", "(only if -retime)"); run("ice40_opt"); } diff --git a/techlibs/intel/synth_intel.cc b/techlibs/intel/synth_intel.cc index c8c690e45..2ebb8bf50 100644 --- a/techlibs/intel/synth_intel.cc +++ b/techlibs/intel/synth_intel.cc @@ -71,7 +71,7 @@ struct SynthIntelPass : public ScriptPass { log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); help_script(); @@ -187,10 +187,10 @@ struct SynthIntelPass : public ScriptPass { } if (!nobram && check_label("map_bram", "(skip if -nobram)")) { - if (family_opt == "cycloneiv" || - family_opt == "cycloneive" || - family_opt == "max10" || - help_mode) { + if (family_opt == "cycloneiv" || + family_opt == "cycloneive" || + family_opt == "max10" || + help_mode) { run("memory_bram -rules +/intel/common/brams_m9k.txt", "(if applicable for family)"); run("techmap -map +/intel/common/brams_map_m9k.v", "(if applicable for family)"); } else { @@ -210,7 +210,7 @@ struct SynthIntelPass : public ScriptPass { run("clean -purge"); run("setundef -undriven -zero"); if (retime || help_mode) - run("abc -markgroups -dff", "(only if -retime)"); + run("abc -markgroups -dff -D 1", "(only if -retime)"); } if (check_label("map_luts")) { @@ -224,7 +224,7 @@ struct SynthIntelPass : public ScriptPass { if (check_label("map_cells")) { if (iopads || help_mode) run("iopadmap -bits -outpad $__outpad I:O -inpad $__inpad O:I", "(if -iopads)"); - run(stringf("techmap -map +/intel/%s/cells_map.v", family_opt.c_str())); + run(stringf("techmap -map +/intel/%s/cells_map.v", family_opt.c_str())); run("dffinit -highlow -ff dffeas q power_up"); run("clean -purge"); } diff --git a/techlibs/sf2/synth_sf2.cc b/techlibs/sf2/synth_sf2.cc index 0924df7a6..543dfdb9e 100644 --- a/techlibs/sf2/synth_sf2.cc +++ b/techlibs/sf2/synth_sf2.cc @@ -67,7 +67,7 @@ struct SynthSf2Pass : public ScriptPass log(" insert direct PAD->global_net buffers\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); @@ -181,7 +181,7 @@ struct SynthSf2Pass : public ScriptPass run("opt -undriven -fine"); run("techmap -map +/techmap.v -map +/sf2/arith_map.v"); if (retime || help_mode) - run("abc -dff", "(only if -retime)"); + run("abc -dff -D 1", "(only if -retime)"); } if (check_label("map_ffs")) diff --git a/techlibs/xilinx/Makefile.inc b/techlibs/xilinx/Makefile.inc index 3ebc72fe8..3f2fbcc85 100644 --- a/techlibs/xilinx/Makefile.inc +++ b/techlibs/xilinx/Makefile.inc @@ -1,5 +1,6 @@ OBJS += techlibs/xilinx/synth_xilinx.o +OBJS += techlibs/xilinx/xilinx_dffopt.o GENFILES += techlibs/xilinx/brams_init_36.vh GENFILES += techlibs/xilinx/brams_init_32.vh diff --git a/techlibs/xilinx/abc9_map.v b/techlibs/xilinx/abc9_map.v index 6fd73c1e0..7b9427b2f 100644 --- a/techlibs/xilinx/abc9_map.v +++ b/techlibs/xilinx/abc9_map.v @@ -88,6 +88,84 @@ module RAM128X1D ( \$__ABC9_LUT7 dpo (.A(\$DPO ), .S(DPRA), .Y(DPO)); endmodule +module RAM32M ( + output [1:0] DOA, + output [1:0] DOB, + output [1:0] DOC, + output [1:0] DOD, + (* techmap_autopurge *) input [4:0] ADDRA, + (* techmap_autopurge *) input [4:0] ADDRB, + (* techmap_autopurge *) input [4:0] ADDRC, + (* techmap_autopurge *) input [4:0] ADDRD, + (* techmap_autopurge *) input [1:0] DIA, + (* techmap_autopurge *) input [1:0] DIB, + (* techmap_autopurge *) input [1:0] DIC, + (* techmap_autopurge *) input [1:0] DID, + (* techmap_autopurge *) input WCLK, + (* techmap_autopurge *) input WE +); + parameter [63:0] INIT_A = 64'h0000000000000000; + parameter [63:0] INIT_B = 64'h0000000000000000; + parameter [63:0] INIT_C = 64'h0000000000000000; + parameter [63:0] INIT_D = 64'h0000000000000000; + parameter [0:0] IS_WCLK_INVERTED = 1'b0; + wire [1:0] \$DOA , \$DOB , \$DOC , \$DOD ; + RAM32M #( + .INIT_A(INIT_A), .INIT_B(INIT_B), .INIT_C(INIT_C), .INIT_D(INIT_D), + .IS_WCLK_INVERTED(IS_WCLK_INVERTED) + ) _TECHMAP_REPLACE_ ( + .DOA(\$DOA ), .DOB(\$DOB ), .DOC(\$DOC ), .DOD(\$DOD ), + .WCLK(WCLK), .WE(WE), + .ADDRA(ADDRA), .ADDRB(ADDRB), .ADDRC(ADDRC), .ADDRD(ADDRD), + .DIA(DIA), .DIB(DIB), .DIC(DIC), .DID(DID) + ); + \$__ABC9_LUT6 doa0 (.A(\$DOA [0]), .S({1'b1, ADDRA}), .Y(DOA[0])); + \$__ABC9_LUT6 doa1 (.A(\$DOA [1]), .S({1'b1, ADDRA}), .Y(DOA[1])); + \$__ABC9_LUT6 dob0 (.A(\$DOB [0]), .S({1'b1, ADDRB}), .Y(DOB[0])); + \$__ABC9_LUT6 dob1 (.A(\$DOB [1]), .S({1'b1, ADDRB}), .Y(DOB[1])); + \$__ABC9_LUT6 doc0 (.A(\$DOC [0]), .S({1'b1, ADDRC}), .Y(DOC[0])); + \$__ABC9_LUT6 doc1 (.A(\$DOC [1]), .S({1'b1, ADDRC}), .Y(DOC[1])); + \$__ABC9_LUT6 dod0 (.A(\$DOD [0]), .S({1'b1, ADDRD}), .Y(DOD[0])); + \$__ABC9_LUT6 dod1 (.A(\$DOD [1]), .S({1'b1, ADDRD}), .Y(DOD[1])); +endmodule + +module RAM64M ( + output DOA, + output DOB, + output DOC, + output DOD, + (* techmap_autopurge *) input [5:0] ADDRA, + (* techmap_autopurge *) input [5:0] ADDRB, + (* techmap_autopurge *) input [5:0] ADDRC, + (* techmap_autopurge *) input [5:0] ADDRD, + (* techmap_autopurge *) input DIA, + (* techmap_autopurge *) input DIB, + (* techmap_autopurge *) input DIC, + (* techmap_autopurge *) input DID, + (* techmap_autopurge *) input WCLK, + (* techmap_autopurge *) input WE +); + parameter [63:0] INIT_A = 64'h0000000000000000; + parameter [63:0] INIT_B = 64'h0000000000000000; + parameter [63:0] INIT_C = 64'h0000000000000000; + parameter [63:0] INIT_D = 64'h0000000000000000; + parameter [0:0] IS_WCLK_INVERTED = 1'b0; + wire \$DOA , \$DOB , \$DOC , \$DOD ; + RAM64M #( + .INIT_A(INIT_A), .INIT_B(INIT_B), .INIT_C(INIT_C), .INIT_D(INIT_D), + .IS_WCLK_INVERTED(IS_WCLK_INVERTED) + ) _TECHMAP_REPLACE_ ( + .DOA(\$DOA ), .DOB(\$DOB ), .DOC(\$DOC ), .DOD(\$DOD ), + .WCLK(WCLK), .WE(WE), + .ADDRA(ADDRA), .ADDRB(ADDRB), .ADDRC(ADDRC), .ADDRD(ADDRD), + .DIA(DIA), .DIB(DIB), .DIC(DIC), .DID(DID) + ); + \$__ABC9_LUT6 doa (.A(\$DOA ), .S(ADDRA), .Y(DOA)); + \$__ABC9_LUT6 dob (.A(\$DOB ), .S(ADDRB), .Y(DOB)); + \$__ABC9_LUT6 doc (.A(\$DOC ), .S(ADDRC), .Y(DOC)); + \$__ABC9_LUT6 dod (.A(\$DOD ), .S(ADDRD), .Y(DOD)); +endmodule + module SRL16E ( output Q, (* techmap_autopurge *) input A0, A1, A2, A3, CE, CLK, D diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v index de2068bc5..cc180f2b9 100644 --- a/techlibs/xilinx/cells_map.v +++ b/techlibs/xilinx/cells_map.v @@ -28,6 +28,33 @@ module _90_dff_nn1_to_np1 (input D, C, R, output Q); \$_DFF_NP1_ _TECHMAP_REPL (* techmap_celltype = "$_DFF_PN1_" *) module _90_dff_pn1_to_pp1 (input D, C, R, output Q); \$_DFF_PP1_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +(* techmap_celltype = "$__DFFE_NN0" *) +module _90_dffe_nn0_to_np0 (input D, C, R, E, output Q); \$__DFFE_NP0 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFE_PN0" *) +module _90_dffe_pn0_to_pp0 (input D, C, R, E, output Q); \$__DFFE_PP0 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFE_NN1" *) +module _90_dffe_nn1_to_np1 (input D, C, R, E, output Q); \$__DFFE_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFE_PN1" *) +module _90_dffe_pn1_to_pp1 (input D, C, R, E, output Q); \$__DFFE_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule + +(* techmap_celltype = "$__DFFS_NN0_" *) +module _90_dffs_nn0_to_np0 (input D, C, R, output Q); \$__DFFS_NP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +(* techmap_celltype = "$__DFFS_PN0_" *) +module _90_dffs_pn0_to_pp0 (input D, C, R, output Q); \$__DFFS_PP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +(* techmap_celltype = "$__DFFS_NN1_" *) +module _90_dffs_nn1_to_np1 (input D, C, R, output Q); \$__DFFS_NP1_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +(* techmap_celltype = "$__DFFS_PN1_" *) +module _90_dffs_pn1_to_pp1 (input D, C, R, output Q); \$__DFFS_PP1_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule + +(* techmap_celltype = "$__DFFSE_NN0" *) +module _90_dffse_nn0_to_np0 (input D, C, R, E, output Q); \$__DFFSE_NP0 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFSE_PN0" *) +module _90_dffse_pn0_to_pp0 (input D, C, R, E, output Q); \$__DFFSE_PP0 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFSE_NN1" *) +module _90_dffse_nn1_to_np1 (input D, C, R, E, output Q); \$__DFFSE_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule +(* techmap_celltype = "$__DFFSE_PN1" *) +module _90_dffse_pn1_to_pp1 (input D, C, R, E, output Q); \$__DFFSE_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R), .E(E)); endmodule + module \$__SHREG_ (input C, input D, input E, output Q); parameter DEPTH = 0; parameter [DEPTH-1:0] INIT = 0; diff --git a/techlibs/xilinx/cells_sim.v b/techlibs/xilinx/cells_sim.v index 3ed0759db..c27b0f02b 100644 --- a/techlibs/xilinx/cells_sim.v +++ b/techlibs/xilinx/cells_sim.v @@ -227,6 +227,14 @@ module MUXCY(output O, input CI, DI, S); assign O = S ? CI : DI; endmodule +module MUXF5(output O, input I0, I1, S); + assign O = S ? I1 : I0; +endmodule + +module MUXF6(output O, input I0, I1, S); + assign O = S ? I1 : I0; +endmodule + (* abc9_box_id = 1, lib_whitebox *) module MUXF7(output O, input I0, I1, S); assign O = S ? I1 : I0; @@ -237,6 +245,10 @@ module MUXF8(output O, input I0, I1, S); assign O = S ? I1 : I0; endmodule +module MUXF9(output O, input I0, I1, S); + assign O = S ? I1 : I0; +endmodule + module XORCY(output O, input CI, LI); assign O = CI ^ LI; endmodule @@ -258,6 +270,26 @@ module CARRY4( assign CO[3] = S[3] ? CO[2] : DI[3]; endmodule +module CARRY8( + output [7:0] CO, + output [7:0] O, + input CI, + input CI_TOP, + input [7:0] DI, S +); + parameter CARRY_TYPE = "SINGLE_CY8"; + wire CI4 = (CARRY_TYPE == "DUAL_CY4" ? CI_TOP : CO[3]); + assign O = S ^ {CO[6:4], CI4, CO[2:0], CI}; + assign CO[0] = S[0] ? CI : DI[0]; + assign CO[1] = S[1] ? CO[0] : DI[1]; + assign CO[2] = S[2] ? CO[1] : DI[2]; + assign CO[3] = S[3] ? CO[2] : DI[3]; + assign CO[4] = S[4] ? CI4 : DI[4]; + assign CO[5] = S[5] ? CO[4] : DI[5]; + assign CO[6] = S[6] ? CO[5] : DI[6]; + assign CO[7] = S[7] ? CO[6] : DI[7]; +endmodule + `ifdef _EXPLICIT_CARRY module CARRY0(output CO_CHAIN, CO_FABRIC, O, input CI, CI_INIT, DI, S); @@ -281,6 +313,16 @@ endmodule `endif +module ORCY (output O, input CI, I); + assign O = CI | I; +endmodule + +module MULT_AND (output LO, input I0, I1); + assign LO = I0 & I1; +endmodule + +// Flip-flops and latches. + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf#L238-L250 module FDRE ( @@ -329,6 +371,41 @@ module FDSE ( endcase endgenerate endmodule +module FDRSE ( + output reg Q, + (* clkbuf_sink *) + (* invertible_pin = "IS_C_INVERTED" *) + input C, + (* invertible_pin = "IS_CE_INVERTED" *) + input CE, + (* invertible_pin = "IS_D_INVERTED" *) + input D, + (* invertible_pin = "IS_R_INVERTED" *) + input R, + (* invertible_pin = "IS_S_INVERTED" *) + input S +); + parameter [0:0] INIT = 1'b0; + parameter [0:0] IS_C_INVERTED = 1'b0; + parameter [0:0] IS_CE_INVERTED = 1'b0; + parameter [0:0] IS_D_INVERTED = 1'b0; + parameter [0:0] IS_R_INVERTED = 1'b0; + parameter [0:0] IS_S_INVERTED = 1'b0; + initial Q <= INIT; + wire c = C ^ IS_C_INVERTED; + wire ce = CE ^ IS_CE_INVERTED; + wire d = D ^ IS_D_INVERTED; + wire r = R ^ IS_R_INVERTED; + wire s = S ^ IS_S_INVERTED; + always @(posedge c) + if (r) + Q <= 0; + else if (s) + Q <= 1; + else if (ce) + Q <= d; +endmodule + module FDCE ( (* abc9_arrival=303 *) output reg Q, @@ -379,6 +456,51 @@ module FDPE ( endcase endgenerate endmodule +module FDCPE ( + output wire Q, + (* clkbuf_sink *) + (* invertible_pin = "IS_C_INVERTED" *) + input C, + input CE, + (* invertible_pin = "IS_CLR_INVERTED" *) + input CLR, + input D, + (* invertible_pin = "IS_PRE_INVERTED" *) + input PRE +); + parameter [0:0] INIT = 1'b0; + parameter [0:0] IS_C_INVERTED = 1'b0; + parameter [0:0] IS_CLR_INVERTED = 1'b0; + parameter [0:0] IS_PRE_INVERTED = 1'b0; + wire c = C ^ IS_C_INVERTED; + wire clr = CLR ^ IS_CLR_INVERTED; + wire pre = PRE ^ IS_PRE_INVERTED; + // Hacky model to avoid simulation-synthesis mismatches. + reg qc, qp, qs; + initial qc = INIT; + initial qp = INIT; + initial qs = 0; + always @(posedge c, posedge clr) begin + if (clr) + qc <= 0; + else if (CE) + qc <= D; + end + always @(posedge c, posedge pre) begin + if (pre) + qp <= 1; + else if (CE) + qp <= D; + end + always @* begin + if (clr) + qs <= 0; + else if (pre) + qs <= 1; + end + assign Q = qs ? qp : qc; +endmodule + module FDRE_1 ( (* abc9_arrival=303 *) output reg Q, @@ -445,8 +567,8 @@ module LDCE ( wire clr = CLR ^ IS_CLR_INVERTED; wire g = G ^ IS_G_INVERTED; always @* - if (clr) Q = 1'b0; - else if (GE && g) Q = D; + if (clr) Q <= 1'b0; + else if (GE && g) Q <= D; endmodule module LDPE ( @@ -467,8 +589,59 @@ module LDPE ( wire g = G ^ IS_G_INVERTED; wire pre = PRE ^ IS_PRE_INVERTED; always @* - if (pre) Q = 1'b1; - else if (GE && g) Q = D; + if (pre) Q <= 1'b1; + else if (GE && g) Q <= D; +endmodule + +module LDCPE ( + output reg Q, + (* invertible_pin = "IS_CLR_INVERTED" *) + input CLR, + (* invertible_pin = "IS_D_INVERTED" *) + input D, + (* invertible_pin = "IS_G_INVERTED" *) + input G, + (* invertible_pin = "IS_GE_INVERTED" *) + input GE, + (* invertible_pin = "IS_PRE_INVERTED" *) + input PRE +); + parameter [0:0] INIT = 1'b1; + parameter [0:0] IS_CLR_INVERTED = 1'b0; + parameter [0:0] IS_D_INVERTED = 1'b0; + parameter [0:0] IS_G_INVERTED = 1'b0; + parameter [0:0] IS_GE_INVERTED = 1'b0; + parameter [0:0] IS_PRE_INVERTED = 1'b0; + initial Q = INIT; + wire d = D ^ IS_D_INVERTED; + wire g = G ^ IS_G_INVERTED; + wire ge = GE ^ IS_GE_INVERTED; + wire clr = CLR ^ IS_CLR_INVERTED; + wire pre = PRE ^ IS_PRE_INVERTED; + always @* + if (clr) Q <= 1'b0; + else if (pre) Q <= 1'b1; + else if (ge && g) Q <= d; +endmodule + +module AND2B1L ( + output O, + input DI, + (* invertible_pin = "IS_SRI_INVERTED" *) + input SRI +); + parameter [0:0] IS_SRI_INVERTED = 1'b0; + assign O = DI & ~(SRI ^ IS_SRI_INVERTED); +endmodule + +module OR2L ( + output O, + input DI, + (* invertible_pin = "IS_SRI_INVERTED" *) + input SRI +); + parameter [0:0] IS_SRI_INVERTED = 1'b0; + assign O = DI | (SRI ^ IS_SRI_INVERTED); endmodule // LUTRAM. @@ -939,8 +1112,8 @@ module RAM16X1D_1 ( endmodule module RAM32X1D ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 - (* abc9_arrival=1153 *) + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L857 + (* abc9_arrival=1188 *) output DPO, SPO, input D, (* clkbuf_sink *) @@ -962,8 +1135,8 @@ module RAM32X1D ( endmodule module RAM32X1D_1 ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 - (* abc9_arrival=1153 *) + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L857 + (* abc9_arrival=1188 *) output DPO, SPO, input D, (* clkbuf_sink *) @@ -985,7 +1158,7 @@ module RAM32X1D_1 ( endmodule module RAM64X1D ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L889 (* abc9_arrival=1153 *) output DPO, SPO, input D, @@ -1008,7 +1181,7 @@ module RAM64X1D ( endmodule module RAM64X1D_1 ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L889 (* abc9_arrival=1153 *) output DPO, SPO, input D, @@ -1031,8 +1204,9 @@ module RAM64X1D_1 ( endmodule module RAM128X1D ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 - (* abc9_arrival=1153 *) + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L889 + // plus 204ps to cross MUXF7 + (* abc9_arrival=1357 *) output DPO, SPO, input D, (* clkbuf_sink *) @@ -1071,18 +1245,20 @@ endmodule // Multi port. module RAM32M ( + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L857 + (* abc9_arrival=1188 *) output [1:0] DOA, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L925 + (* abc9_arrival=1187 *) output [1:0] DOB, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L993 + (* abc9_arrival=1180 *) output [1:0] DOC, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L1061 + (* abc9_arrival=1190 *) output [1:0] DOD, - input [4:0] ADDRA, - input [4:0] ADDRB, - input [4:0] ADDRC, - input [4:0] ADDRD, - input [1:0] DIA, - input [1:0] DIB, - input [1:0] DIC, - input [1:0] DID, + input [4:0] ADDRA, ADDRB, ADDRC, ADDRD, + input [1:0] DIA, DIB, DIC, DID, (* clkbuf_sink *) (* invertible_pin = "IS_WCLK_INVERTED" *) input WCLK, @@ -1181,18 +1357,20 @@ module RAM32M16 ( endmodule module RAM64M ( + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L889 + (* abc9_arrival=1153 *) output DOA, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L957 + (* abc9_arrival=1161 *) output DOB, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L1025 + (* abc9_arrival=1158 *) output DOC, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L1093 + (* abc9_arrival=1163 *) output DOD, - input [4:0] ADDRA, - input [4:0] ADDRB, - input [4:0] ADDRC, - input [4:0] ADDRD, - input DIA, - input DIB, - input DIC, - input DID, + input [5:0] ADDRA, ADDRB, ADDRC, ADDRD, + input DIA, DIB, DIC, DID, (* clkbuf_sink *) (* invertible_pin = "IS_WCLK_INVERTED" *) input WCLK, @@ -1230,14 +1408,14 @@ module RAM64M8 ( output DOF, output DOG, output DOH, - input [4:0] ADDRA, - input [4:0] ADDRB, - input [4:0] ADDRC, - input [4:0] ADDRD, - input [4:0] ADDRE, - input [4:0] ADDRF, - input [4:0] ADDRG, - input [4:0] ADDRH, + input [5:0] ADDRA, + input [5:0] ADDRB, + input [5:0] ADDRC, + input [5:0] ADDRD, + input [5:0] ADDRE, + input [5:0] ADDRF, + input [5:0] ADDRG, + input [5:0] ADDRH, input DIA, input DIB, input DIC, @@ -1334,8 +1512,22 @@ endmodule // Shift registers. +module SRL16 ( + output Q, + input A0, A1, A2, A3, + (* clkbuf_sink *) + input CLK, + input D +); + parameter [15:0] INIT = 16'h0000; + + reg [15:0] r = INIT; + assign Q = r[{A3,A2,A1,A0}]; + always @(posedge CLK) r <= { r[14:0], D }; +endmodule + module SRL16E ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L904-L905 + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L905 (* abc9_arrival=1472 *) output Q, input A0, A1, A2, A3, CE, @@ -1358,6 +1550,22 @@ module SRL16E ( endgenerate endmodule +module SRLC16 ( + output Q, + output Q15, + input A0, A1, A2, A3, + (* clkbuf_sink *) + input CLK, + input D +); + parameter [15:0] INIT = 16'h0000; + + reg [15:0] r = INIT; + assign Q15 = r[15]; + assign Q = r[{A3,A2,A1,A0}]; + always @(posedge CLK) r <= { r[14:0], D }; +endmodule + module SRLC16E ( output Q, output Q15, @@ -1383,9 +1591,10 @@ module SRLC16E ( endmodule module SRLC32E ( - // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L904-L905 + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L905 (* abc9_arrival=1472 *) output Q, + // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L904 (* abc9_arrival=1114 *) output Q31, input [4:0] A, @@ -1410,6 +1619,31 @@ module SRLC32E ( endgenerate endmodule +module CFGLUT5 ( + output CDO, + output O5, + output O6, + input I4, + input I3, + input I2, + input I1, + input I0, + input CDI, + input CE, + (* clkbuf_sink *) + (* invertible_pin = "IS_CLK_INVERTED" *) + input CLK +); + parameter [31:0] INIT = 32'h00000000; + parameter [0:0] IS_CLK_INVERTED = 1'b0; + wire clk = CLK ^ IS_CLK_INVERTED; + reg [31:0] r = INIT; + assign CDO = r[31]; + assign O5 = r[{1'b0, I3, I2, I1, I0}]; + assign O6 = r[{I4, I3, I2, I1, I0}]; + always @(posedge clk) if (CE) r <= {r[30:0], CDI}; +endmodule + // DSP // Virtex 2, Virtex 2 Pro, Spartan 3. @@ -1885,7 +2119,7 @@ always @* begin 2'b00: XMUX <= 0; 2'b01: XMUX <= M; 2'b10: XMUX <= P; - 2'b11: XMUX <= {D_OUT[11:0], B1_OUT, A1_OUT}; + 2'b11: XMUX <= {D_OUT[11:0], A1_OUT, B1_OUT}; default: XMUX <= 48'hxxxxxxxxxxxx; endcase end @@ -1903,8 +2137,8 @@ end // The post-adder. wire signed [48:0] X_EXT; wire signed [48:0] Z_EXT; -assign X_EXT = XMUX; -assign Z_EXT = ZMUX; +assign X_EXT = {1'b0, XMUX}; +assign Z_EXT = {1'b0, ZMUX}; assign {CARRYOUT_IN, P_IN} = OPMODE_OUT[7] ? (Z_EXT - (X_EXT + CARRYIN_OUT)) : (Z_EXT + X_EXT + CARRYIN_OUT); // Cascade outputs. @@ -2002,7 +2236,7 @@ module DSP48E1 ( parameter [6:0] IS_OPMODE_INVERTED = 7'b0; initial begin -`ifdef __ICARUS__ +`ifndef YOSYS if (AUTORESET_PATDET != "NO_RESET") $fatal(1, "Unsupported AUTORESET_PATDET value"); if (SEL_MASK != "MASK") $fatal(1, "Unsupported SEL_MASK value"); if (SEL_PATTERN != "PATTERN") $fatal(1, "Unsupported SEL_PATTERN value"); @@ -2165,12 +2399,12 @@ module DSP48E1 ( case (OPMODEr[1:0]) 2'b00: X = 48'b0; 2'b01: begin X = $signed(Mrx); -`ifdef __ICARUS__ +`ifndef YOSYS if (OPMODEr[3:2] != 2'b01) $fatal(1, "OPMODEr[3:2] must be 2'b01 when OPMODEr[1:0] is 2'b01"); `endif end 2'b10: begin X = P; -`ifdef __ICARUS__ +`ifndef YOSYS if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[1:0] is 2'b10"); `endif end @@ -2182,7 +2416,7 @@ module DSP48E1 ( case (OPMODEr[3:2]) 2'b00: Y = 48'b0; 2'b01: begin Y = 48'b0; // FIXME: more accurate partial product modelling? -`ifdef __ICARUS__ +`ifndef YOSYS if (OPMODEr[1:0] != 2'b01) $fatal(1, "OPMODEr[1:0] must be 2'b01 when OPMODEr[3:2] is 2'b01"); `endif end @@ -2196,13 +2430,13 @@ module DSP48E1 ( 3'b000: Z = 48'b0; 3'b001: Z = PCIN; 3'b010: begin Z = P; -`ifdef __ICARUS__ +`ifndef YOSYS if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[6:4] i0s 3'b010"); `endif end 3'b011: Z = Cr; 3'b100: begin Z = P; -`ifdef __ICARUS__ +`ifndef YOSYS if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[6:4] is 3'b100"); if (OPMODEr[3:0] != 4'b1000) $fatal(1, "OPMODEr[3:0] must be 4'b1000 when OPMODEr[6:4] i0s 3'b100"); `endif diff --git a/techlibs/xilinx/cells_xtra.py b/techlibs/xilinx/cells_xtra.py index e4c580b9d..d5c58c5d7 100644 --- a/techlibs/xilinx/cells_xtra.py +++ b/techlibs/xilinx/cells_xtra.py @@ -65,9 +65,9 @@ CELLS = [ # CLB -- registers/latches. # Virtex 1/2/4/5, Spartan 3. - Cell('FDCPE', port_attrs={'C': ['clkbuf_sink']}), - Cell('FDRSE', port_attrs={'C': ['clkbuf_sink']}), - Cell('LDCPE', port_attrs={'C': ['clkbuf_sink']}), + # Cell('FDCPE', port_attrs={'C': ['clkbuf_sink']}), + # Cell('FDRSE', port_attrs={'C': ['clkbuf_sink']}), + # Cell('LDCPE', port_attrs={'C': ['clkbuf_sink']}), # Virtex 6, Spartan 6, Series 7, Ultrascale. # Cell('FDCE'), # Cell('FDPE'), @@ -75,8 +75,8 @@ CELLS = [ # Cell('FDSE'), # Cell('LDCE'), # Cell('LDPE'), - Cell('AND2B1L'), - Cell('OR2L'), + # Cell('AND2B1L'), + # Cell('OR2L'), # CLB -- other. # Cell('LUT1'), @@ -86,23 +86,23 @@ CELLS = [ # Cell('LUT5'), # Cell('LUT6'), # Cell('LUT6_2'), - Cell('MUXF5'), - Cell('MUXF6'), + # Cell('MUXF5'), + # Cell('MUXF6'), # Cell('MUXF7'), # Cell('MUXF8'), - Cell('MUXF9'), + # Cell('MUXF9'), # Cell('CARRY4'), - Cell('CARRY8'), + # Cell('CARRY8'), # Cell('MUXCY'), # Cell('XORCY'), - Cell('ORCY'), - Cell('MULT_AND'), - Cell('SRL16', port_attrs={'CLK': ['clkbuf_sink']}), + # Cell('ORCY'), + # Cell('MULT_AND'), + # Cell('SRL16', port_attrs={'CLK': ['clkbuf_sink']}), # Cell('SRL16E', port_attrs={'CLK': ['clkbuf_sink']}), - Cell('SRLC16', port_attrs={'CLK': ['clkbuf_sink']}), + # Cell('SRLC16', port_attrs={'CLK': ['clkbuf_sink']}), # Cell('SRLC16E', port_attrs={'CLK': ['clkbuf_sink']}), # Cell('SRLC32E', port_attrs={'CLK': ['clkbuf_sink']}), - Cell('CFGLUT5', port_attrs={'CLK': ['clkbuf_sink']}), + # Cell('CFGLUT5', port_attrs={'CLK': ['clkbuf_sink']}), # Block RAM. # Virtex. diff --git a/techlibs/xilinx/cells_xtra.v b/techlibs/xilinx/cells_xtra.v index 8ac596459..c3e5c72f9 100644 --- a/techlibs/xilinx/cells_xtra.v +++ b/techlibs/xilinx/cells_xtra.v @@ -1,165 +1,5 @@ // Created by cells_xtra.py from Xilinx models -module FDCPE (...); - parameter [0:0] INIT = 1'b0; - parameter [0:0] IS_C_INVERTED = 1'b0; - parameter [0:0] IS_CLR_INVERTED = 1'b0; - parameter [0:0] IS_PRE_INVERTED = 1'b0; - output Q; - (* clkbuf_sink *) - (* invertible_pin = "IS_C_INVERTED" *) - input C; - input CE; - (* invertible_pin = "IS_CLR_INVERTED" *) - input CLR; - input D; - (* invertible_pin = "IS_PRE_INVERTED" *) - input PRE; -endmodule - -module FDRSE (...); - parameter [0:0] INIT = 1'b0; - parameter [0:0] IS_C_INVERTED = 1'b0; - parameter [0:0] IS_CE_INVERTED = 1'b0; - parameter [0:0] IS_D_INVERTED = 1'b0; - parameter [0:0] IS_R_INVERTED = 1'b0; - parameter [0:0] IS_S_INVERTED = 1'b0; - output Q; - (* clkbuf_sink *) - (* invertible_pin = "IS_C_INVERTED" *) - input C; - (* invertible_pin = "IS_CE_INVERTED" *) - input CE; - (* invertible_pin = "IS_D_INVERTED" *) - input D; - (* invertible_pin = "IS_R_INVERTED" *) - input R; - (* invertible_pin = "IS_S_INVERTED" *) - input S; -endmodule - -module LDCPE (...); - parameter [0:0] INIT = 1'b0; - parameter [0:0] IS_CLR_INVERTED = 1'b0; - parameter [0:0] IS_D_INVERTED = 1'b0; - parameter [0:0] IS_G_INVERTED = 1'b0; - parameter [0:0] IS_GE_INVERTED = 1'b0; - parameter [0:0] IS_PRE_INVERTED = 1'b0; - output Q; - (* invertible_pin = "IS_CLR_INVERTED" *) - input CLR; - (* invertible_pin = "IS_D_INVERTED" *) - input D; - (* invertible_pin = "IS_G_INVERTED" *) - input G; - (* invertible_pin = "IS_GE_INVERTED" *) - input GE; - (* invertible_pin = "IS_PRE_INVERTED" *) - input PRE; -endmodule - -module AND2B1L (...); - parameter [0:0] IS_SRI_INVERTED = 1'b0; - output O; - input DI; - (* invertible_pin = "IS_SRI_INVERTED" *) - input SRI; -endmodule - -module OR2L (...); - parameter [0:0] IS_SRI_INVERTED = 1'b0; - output O; - input DI; - (* invertible_pin = "IS_SRI_INVERTED" *) - input SRI; -endmodule - -module MUXF5 (...); - output O; - input I0; - input I1; - input S; -endmodule - -module MUXF6 (...); - output O; - input I0; - input I1; - input S; -endmodule - -module MUXF9 (...); - output O; - input I0; - input I1; - input S; -endmodule - -module CARRY8 (...); - parameter CARRY_TYPE = "SINGLE_CY8"; - output [7:0] CO; - output [7:0] O; - input CI; - input CI_TOP; - input [7:0] DI; - input [7:0] S; -endmodule - -module ORCY (...); - output O; - input CI; - input I; -endmodule - -module MULT_AND (...); - output LO; - input I0; - input I1; -endmodule - -module SRL16 (...); - parameter [15:0] INIT = 16'h0000; - output Q; - input A0; - input A1; - input A2; - input A3; - (* clkbuf_sink *) - input CLK; - input D; -endmodule - -module SRLC16 (...); - parameter [15:0] INIT = 16'h0000; - output Q; - output Q15; - input A0; - input A1; - input A2; - input A3; - (* clkbuf_sink *) - input CLK; - input D; -endmodule - -module CFGLUT5 (...); - parameter [31:0] INIT = 32'h00000000; - parameter [0:0] IS_CLK_INVERTED = 1'b0; - output CDO; - output O5; - output O6; - input I4; - input I3; - input I2; - input I1; - input I0; - input CDI; - input CE; - (* clkbuf_sink *) - (* invertible_pin = "IS_CLK_INVERTED" *) - input CLK; -endmodule - module RAMB16_S1 (...); parameter [0:0] INIT = 1'h0; parameter [0:0] SRVAL = 1'h0; diff --git a/techlibs/xilinx/lutrams.txt b/techlibs/xilinx/lutrams.txt index 2613c206c..29f6b05cc 100644 --- a/techlibs/xilinx/lutrams.txt +++ b/techlibs/xilinx/lutrams.txt @@ -1,4 +1,17 @@ +bram $__XILINX_RAM16X1D + init 1 + abits 4 + dbits 1 + groups 2 + ports 1 1 + wrmode 0 1 + enable 0 1 + transp 0 0 + clocks 0 1 + clkpol 0 2 +endbram + bram $__XILINX_RAM32X1D init 1 abits 5 @@ -38,6 +51,70 @@ bram $__XILINX_RAM128X1D clkpol 0 2 endbram + +bram $__XILINX_RAM32X6SDP + init 1 + abits 5 + dbits 6 + groups 2 + ports 1 1 + wrmode 0 1 + enable 0 1 + transp 0 0 + clocks 0 1 + clkpol 0 2 +endbram + +bram $__XILINX_RAM64X3SDP + init 1 + abits 6 + dbits 3 + groups 2 + ports 1 1 + wrmode 0 1 + enable 0 1 + transp 0 0 + clocks 0 1 + clkpol 0 2 +endbram + +bram $__XILINX_RAM32X2Q + init 1 + abits 5 + dbits 2 + groups 2 + ports 3 1 + wrmode 0 1 + enable 0 1 + transp 0 0 + clocks 0 1 + clkpol 0 2 +endbram + +bram $__XILINX_RAM64X1Q + init 1 + abits 6 + dbits 1 + groups 2 + ports 3 1 + wrmode 0 1 + enable 0 1 + transp 0 0 + clocks 0 1 + clkpol 0 2 +endbram + + +# Disabled for now, pending support for LUT4 arches +# since on LUT6 arches this occupies same area as +# a RAM32X1D +#match $__XILINX_RAM16X1D +# min bits 2 +# min wports 1 +# make_outreg +# or_next_if_better +#endmatch + match $__XILINX_RAM32X1D min bits 3 min wports 1 @@ -56,5 +133,35 @@ match $__XILINX_RAM128X1D min bits 9 min wports 1 make_outreg + or_next_if_better +endmatch + + +match $__XILINX_RAM32X6SDP + min bits 5 + min wports 1 + make_outreg + or_next_if_better +endmatch + +match $__XILINX_RAM64X3SDP + min bits 6 + min wports 1 + make_outreg + or_next_if_better +endmatch + +match $__XILINX_RAM32X2Q + min bits 5 + min rports 3 + min wports 1 + make_outreg + or_next_if_better endmatch +match $__XILINX_RAM64X1Q + min bits 5 + min rports 3 + min wports 1 + make_outreg +endmatch diff --git a/techlibs/xilinx/lutrams_map.v b/techlibs/xilinx/lutrams_map.v index 77041ca86..3ac1143bb 100644 --- a/techlibs/xilinx/lutrams_map.v +++ b/techlibs/xilinx/lutrams_map.v @@ -1,4 +1,36 @@ +module \$__XILINX_RAM16X1D (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); + parameter [15:0] INIT = 16'bx; + parameter CLKPOL2 = 1; + input CLK1; + + input [3:0] A1ADDR; + output A1DATA; + + input [3:0] B1ADDR; + input B1DATA; + input B1EN; + + RAM16X1D #( + .INIT(INIT), + .IS_WCLK_INVERTED(!CLKPOL2) + ) _TECHMAP_REPLACE_ ( + .DPRA0(A1ADDR[0]), + .DPRA1(A1ADDR[1]), + .DPRA2(A1ADDR[2]), + .DPRA3(A1ADDR[3]), + .DPO(A1DATA), + + .A0(B1ADDR[0]), + .A1(B1ADDR[1]), + .A2(B1ADDR[2]), + .A3(B1ADDR[3]), + .D(B1DATA), + .WCLK(CLK1), + .WE(B1EN) + ); +endmodule + module \$__XILINX_RAM32X1D (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); parameter [31:0] INIT = 32'bx; parameter CLKPOL2 = 1; @@ -95,3 +127,153 @@ module \$__XILINX_RAM128X1D (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); ); endmodule + +module \$__XILINX_RAM32X6SDP (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); + parameter [32*6-1:0] INIT = {32*6{1'bx}}; + parameter CLKPOL2 = 1; + input CLK1; + + input [4:0] A1ADDR; + output [5:0] A1DATA; + + input [4:0] B1ADDR; + input [5:0] B1DATA; + input B1EN; + + wire [1:0] DOD_unused; + + RAM32M #( + .INIT_A({INIT[187:186], INIT[181:180], INIT[175:174], INIT[169:168], INIT[163:162], INIT[157:156], INIT[151:150], INIT[145:144], INIT[139:138], INIT[133:132], INIT[127:126], INIT[121:120], INIT[115:114], INIT[109:108], INIT[103:102], INIT[ 97: 96], INIT[ 91: 90], INIT[ 85: 84], INIT[ 79: 78], INIT[ 73: 72], INIT[ 67: 66], INIT[ 61: 60], INIT[ 55: 54], INIT[ 49: 48], INIT[ 43: 42], INIT[ 37: 36], INIT[ 31: 30], INIT[ 25: 24], INIT[ 19: 18], INIT[ 13: 12], INIT[ 7: 6], INIT[ 1: 0]}), + .INIT_B({INIT[189:188], INIT[183:182], INIT[177:176], INIT[171:170], INIT[165:164], INIT[159:158], INIT[153:152], INIT[147:146], INIT[141:140], INIT[135:134], INIT[129:128], INIT[123:122], INIT[117:116], INIT[111:110], INIT[105:104], INIT[ 99: 98], INIT[ 93: 92], INIT[ 87: 86], INIT[ 81: 80], INIT[ 75: 74], INIT[ 69: 68], INIT[ 63: 62], INIT[ 57: 56], INIT[ 51: 50], INIT[ 45: 44], INIT[ 39: 38], INIT[ 33: 32], INIT[ 27: 26], INIT[ 21: 20], INIT[ 15: 14], INIT[ 9: 8], INIT[ 3: 2]}), + .INIT_C({INIT[191:190], INIT[185:184], INIT[179:178], INIT[173:172], INIT[167:166], INIT[161:160], INIT[155:154], INIT[149:148], INIT[143:142], INIT[137:136], INIT[131:130], INIT[125:124], INIT[119:118], INIT[113:112], INIT[107:106], INIT[101:100], INIT[ 95: 94], INIT[ 89: 88], INIT[ 83: 82], INIT[ 77: 76], INIT[ 71: 70], INIT[ 65: 64], INIT[ 59: 58], INIT[ 53: 52], INIT[ 47: 46], INIT[ 41: 40], INIT[ 35: 34], INIT[ 29: 28], INIT[ 23: 22], INIT[ 17: 16], INIT[ 11: 10], INIT[ 5: 4]}), + .INIT_D(64'bx), + .IS_WCLK_INVERTED(!CLKPOL2) + ) _TECHMAP_REPLACE_ ( + .ADDRA(A1ADDR), + .ADDRB(A1ADDR), + .ADDRC(A1ADDR), + .DOA(A1DATA[1:0]), + .DOB(A1DATA[3:2]), + .DOC(A1DATA[5:4]), + .DOD(DOD_unused), + + .ADDRD(B1ADDR), + .DIA(B1DATA[1:0]), + .DIB(B1DATA[3:2]), + .DIC(B1DATA[5:4]), + .DID(2'b00), + .WCLK(CLK1), + .WE(B1EN) + ); +endmodule + +module \$__XILINX_RAM64X3SDP (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN); + parameter [64*3-1:0] INIT = {64*3{1'bx}}; + parameter CLKPOL2 = 1; + input CLK1; + + input [5:0] A1ADDR; + output [2:0] A1DATA; + + input [5:0] B1ADDR; + input [2:0] B1DATA; + input B1EN; + + wire DOD_unused; + + RAM64M #( + .INIT_A({INIT[189], INIT[186], INIT[183], INIT[180], INIT[177], INIT[174], INIT[171], INIT[168], INIT[165], INIT[162], INIT[159], INIT[156], INIT[153], INIT[150], INIT[147], INIT[144], INIT[141], INIT[138], INIT[135], INIT[132], INIT[129], INIT[126], INIT[123], INIT[120], INIT[117], INIT[114], INIT[111], INIT[108], INIT[105], INIT[102], INIT[ 99], INIT[ 96], INIT[ 93], INIT[ 90], INIT[ 87], INIT[ 84], INIT[ 81], INIT[ 78], INIT[ 75], INIT[ 72], INIT[ 69], INIT[ 66], INIT[ 63], INIT[ 60], INIT[ 57], INIT[ 54], INIT[ 51], INIT[ 48], INIT[ 45], INIT[ 42], INIT[ 39], INIT[ 36], INIT[ 33], INIT[ 30], INIT[ 27], INIT[ 24], INIT[ 21], INIT[ 18], INIT[ 15], INIT[ 12], INIT[ 9], INIT[ 6], INIT[ 3], INIT[ 0]}), + .INIT_B({INIT[190], INIT[187], INIT[184], INIT[181], INIT[178], INIT[175], INIT[172], INIT[169], INIT[166], INIT[163], INIT[160], INIT[157], INIT[154], INIT[151], INIT[148], INIT[145], INIT[142], INIT[139], INIT[136], INIT[133], INIT[130], INIT[127], INIT[124], INIT[121], INIT[118], INIT[115], INIT[112], INIT[109], INIT[106], INIT[103], INIT[100], INIT[ 97], INIT[ 94], INIT[ 91], INIT[ 88], INIT[ 85], INIT[ 82], INIT[ 79], INIT[ 76], INIT[ 73], INIT[ 70], INIT[ 67], INIT[ 64], INIT[ 61], INIT[ 58], INIT[ 55], INIT[ 52], INIT[ 49], INIT[ 46], INIT[ 43], INIT[ 40], INIT[ 37], INIT[ 34], INIT[ 31], INIT[ 28], INIT[ 25], INIT[ 22], INIT[ 19], INIT[ 16], INIT[ 13], INIT[ 10], INIT[ 7], INIT[ 4], INIT[ 1]}), + .INIT_C({INIT[191], INIT[188], INIT[185], INIT[182], INIT[179], INIT[176], INIT[173], INIT[170], INIT[167], INIT[164], INIT[161], INIT[158], INIT[155], INIT[152], INIT[149], INIT[146], INIT[143], INIT[140], INIT[137], INIT[134], INIT[131], INIT[128], INIT[125], INIT[122], INIT[119], INIT[116], INIT[113], INIT[110], INIT[107], INIT[104], INIT[101], INIT[ 98], INIT[ 95], INIT[ 92], INIT[ 89], INIT[ 86], INIT[ 83], INIT[ 80], INIT[ 77], INIT[ 74], INIT[ 71], INIT[ 68], INIT[ 65], INIT[ 62], INIT[ 59], INIT[ 56], INIT[ 53], INIT[ 50], INIT[ 47], INIT[ 44], INIT[ 41], INIT[ 38], INIT[ 35], INIT[ 32], INIT[ 29], INIT[ 26], INIT[ 23], INIT[ 20], INIT[ 17], INIT[ 14], INIT[ 11], INIT[ 8], INIT[ 5], INIT[ 2]}), + .INIT_D(64'bx), + .IS_WCLK_INVERTED(!CLKPOL2) + ) _TECHMAP_REPLACE_ ( + .ADDRA(A1ADDR), + .ADDRB(A1ADDR), + .ADDRC(A1ADDR), + .DOA(A1DATA[0]), + .DOB(A1DATA[1]), + .DOC(A1DATA[2]), + .DOD(DOD_unused), + + .ADDRD(B1ADDR), + .DIA(B1DATA[0]), + .DIB(B1DATA[1]), + .DIC(B1DATA[2]), + .DID(1'b0), + .WCLK(CLK1), + .WE(B1EN) + ); +endmodule + +module \$__XILINX_RAM32X2Q (CLK1, A1ADDR, A1DATA, A2ADDR, A2DATA, A3ADDR, A3DATA, B1ADDR, B1DATA, B1EN); + parameter [63:0] INIT = 64'bx; + parameter CLKPOL2 = 1; + input CLK1; + + input [4:0] A1ADDR, A2ADDR, A3ADDR; + output [1:0] A1DATA, A2DATA, A3DATA; + + input [4:0] B1ADDR; + input [1:0] B1DATA; + input B1EN; + + RAM32M #( + .INIT_A(INIT), + .INIT_B(INIT), + .INIT_C(INIT), + .INIT_D(INIT), + .IS_WCLK_INVERTED(!CLKPOL2) + ) _TECHMAP_REPLACE_ ( + .ADDRA(A1ADDR), + .ADDRB(A2ADDR), + .ADDRC(A3ADDR), + .DOA(A1DATA), + .DOB(A2DATA), + .DOC(A3DATA), + + .ADDRD(B1ADDR), + .DIA(B1DATA), + .DIB(B1DATA), + .DIC(B1DATA), + .DID(B1DATA), + .WCLK(CLK1), + .WE(B1EN) + ); +endmodule + +module \$__XILINX_RAM64X1Q (CLK1, A1ADDR, A1DATA, A2ADDR, A2DATA, A3ADDR, A3DATA, B1ADDR, B1DATA, B1EN); + parameter [63:0] INIT = 64'bx; + parameter CLKPOL2 = 1; + input CLK1; + + input [5:0] A1ADDR, A2ADDR, A3ADDR; + output A1DATA, A2DATA, A3DATA; + + input [5:0] B1ADDR; + input B1DATA; + input B1EN; + + RAM64M #( + .INIT_A(INIT), + .INIT_B(INIT), + .INIT_C(INIT), + .INIT_D(INIT), + .IS_WCLK_INVERTED(!CLKPOL2) + ) _TECHMAP_REPLACE_ ( + .ADDRA(A1ADDR), + .ADDRB(A2ADDR), + .ADDRC(A3ADDR), + .DOA(A1DATA), + .DOB(A2DATA), + .DOC(A3DATA), + + .ADDRD(B1ADDR), + .DIA(B1DATA), + .DIB(B1DATA), + .DIC(B1DATA), + .DID(B1DATA), + .WCLK(CLK1), + .WE(B1EN) + ); +endmodule diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 2c5686a35..b0c4795ee 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -64,7 +64,7 @@ struct SynthXilinxPass : public ScriptPass log(" (this feature is experimental and incomplete)\n"); log("\n"); log(" -ise\n"); - log(" generate an output netlist suitable for ISE (enables -iopad)\n"); + log(" generate an output netlist suitable for ISE\n"); log("\n"); log(" -nobram\n"); log(" do not use block RAM cells in output netlist\n"); @@ -84,11 +84,9 @@ struct SynthXilinxPass : public ScriptPass log(" -nodsp\n"); log(" do not use DSP48E1s to implement multipliers and associated logic\n"); log("\n"); - log(" -iopad\n"); - log(" enable I/O buffer insertion (selected automatically by -ise)\n"); - log("\n"); log(" -noiopad\n"); - log(" disable I/O buffer insertion (only useful with -ise)\n"); + log(" disable I/O buffer insertion (useful for hierarchical or \n"); + log(" out-of-context flows)\n"); log("\n"); log(" -noclkbuf\n"); log(" disable automatic clock buffer insertion\n"); @@ -110,7 +108,7 @@ struct SynthXilinxPass : public ScriptPass log(" flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log(" -abc9\n"); log(" use new ABC9 flow (EXPERIMENTAL)\n"); @@ -122,7 +120,7 @@ struct SynthXilinxPass : public ScriptPass } std::string top_opt, edif_file, blif_file, family; - bool flatten, retime, vpr, ise, iopad, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, nodsp, uram, abc9; + bool flatten, retime, vpr, ise, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, nodsp, uram, abc9; bool flatten_before_abc; int widemux; @@ -136,7 +134,6 @@ struct SynthXilinxPass : public ScriptPass retime = false; vpr = false; ise = false; - iopad = false; noiopad = false; noclkbuf = false; nocarry = false; @@ -213,7 +210,6 @@ struct SynthXilinxPass : public ScriptPass continue; } if (args[argidx] == "-iopad") { - iopad = true; continue; } if (args[argidx] == "-noiopad") { @@ -282,7 +278,6 @@ struct SynthXilinxPass : public ScriptPass void script() YS_OVERRIDE { - bool do_iopad = iopad || (ise && !noiopad); std::string ff_map_file; if (help_mode) ff_map_file = "+/xilinx/{family}_ff_map.v"; @@ -387,7 +382,10 @@ struct SynthXilinxPass : public ScriptPass run("opt_expr -fine"); run("wreduce"); run("select -clear"); - run("xilinx_dsp"); + if (help_mode) + run("xilinx_dsp -family <family>"); + else + run("xilinx_dsp -family " + family); run("chtype -set $mul t:$__soft_mul"); } } @@ -444,6 +442,16 @@ struct SynthXilinxPass : public ScriptPass } if (check_label("map_ffram")) { + // Required for dffsr2dff to work. + run("simplemap t:$dff t:$adff t:$mux"); + // Needs to be done before opt -mux_bool happens. + run("dffsr2dff"); + if (help_mode) + run("dff2dffs [-match-init]", "(-match-init for xc6s only)"); + else if (family == "xc6s") + run("dff2dffs -match-init"); + else + run("dff2dffs"); if (widemux > 0) run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover // performs less efficiently @@ -453,14 +461,11 @@ struct SynthXilinxPass : public ScriptPass } if (check_label("fine")) { - run("dffsr2dff"); - run("dff2dffe"); + run("dff2dffe -direct-match $_DFF_* -direct-match $__DFFS_*"); if (help_mode) { - run("simplemap t:$mux", " ('-widemux' only)"); run("muxcover <internal options>, ('-widemux' only)"); } else if (widemux > 0) { - run("simplemap t:$mux"); constexpr int cost_mux2 = 100; std::string muxcover_args = stringf(" -nodecode -mux2=%d", cost_mux2); switch (widemux) { @@ -507,8 +512,8 @@ struct SynthXilinxPass : public ScriptPass if (check_label("map_cells")) { // Needs to be done before logic optimization, so that inverters (OE vs T) are handled. - if (help_mode || do_iopad) - run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad $__XILINX_TOUTPAD OE:I:O -tinoutpad $__XILINX_TINOUTPAD OE:O:I:IO A:top", "(only if '-iopad' or '-ise' and not '-noiopad')"); + if (help_mode || !noiopad) + run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad $__XILINX_TOUTPAD OE:I:O -tinoutpad $__XILINX_TINOUTPAD OE:O:I:IO A:top", "(only if not '-noiopad')"); std::string techmap_args = "-map +/techmap.v -map +/xilinx/cells_map.v"; if (widemux > 0) techmap_args += stringf(" -D MIN_MUX_INPUTS=%d", widemux); @@ -545,9 +550,9 @@ struct SynthXilinxPass : public ScriptPass } else { if (nowidelut) - run("abc -luts 2:2,3,6:5" + string(retime ? " -dff" : "")); + run("abc -luts 2:2,3,6:5" + string(retime ? " -dff -D 1" : "")); else - run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); + run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff -D 1" : "")); } run("clean"); @@ -563,6 +568,7 @@ struct SynthXilinxPass : public ScriptPass else techmap_args += " -map " + ff_map_file; run("techmap " + techmap_args); + run("xilinx_dffopt"); run("clean"); } diff --git a/techlibs/xilinx/tests/.gitignore b/techlibs/xilinx/tests/.gitignore index ef3699bd2..848f88d53 100644 --- a/techlibs/xilinx/tests/.gitignore +++ b/techlibs/xilinx/tests/.gitignore @@ -8,4 +8,8 @@ dsp_work*/ test_dsp_model_ref.v test_dsp_model_uut.v test_dsp_model +test_dsp48a_model_ref.v +test_dsp48a1_model_ref.v +test_dsp48a1_model_uut.v +test_dsp48a1_model *.vcd diff --git a/techlibs/xilinx/tests/test_dsp48a1_model.sh b/techlibs/xilinx/tests/test_dsp48a1_model.sh new file mode 100644 index 000000000..a14a78e72 --- /dev/null +++ b/techlibs/xilinx/tests/test_dsp48a1_model.sh @@ -0,0 +1,17 @@ +#!/bin/bash +set -ex +if [ -z $ISE_DIR ]; then + ISE_DIR=/opt/Xilinx/ISE/14.7 +fi +sed 's/DSP48A1/MARKER1/; s/DSP48A/DSP48A_UUT/; s/MARKER1/DSP48A1_UUT/; /module DSP48A_UUT/,/endmodule/ p; /module DSP48A1_UUT/,/endmodule/ p; d;' < ../cells_sim.v > test_dsp48a1_model_uut.v +if [ ! -f "test_dsp48a1_model_ref.v" ]; then + cp $ISE_DIR/ISE_DS/ISE/verilog/src/unisims/DSP48A1.v test_dsp48a1_model_ref.v +fi +if [ ! -f "test_dsp48a_model_ref.v" ]; then + cp $ISE_DIR/ISE_DS/ISE/verilog/src/unisims/DSP48A.v test_dsp48a_model_ref.v +fi +for tb in mult_allreg mult_noreg mult_inreg +do + iverilog -s $tb -s glbl -o test_dsp48a1_model test_dsp48a1_model.v test_dsp48a1_model_uut.v test_dsp48a1_model_ref.v test_dsp48a_model_ref.v $ISE_DIR/ISE_DS/ISE/verilog/src/glbl.v + vvp -N ./test_dsp48a1_model +done diff --git a/techlibs/xilinx/tests/test_dsp48a1_model.v b/techlibs/xilinx/tests/test_dsp48a1_model.v new file mode 100644 index 000000000..66346b47b --- /dev/null +++ b/techlibs/xilinx/tests/test_dsp48a1_model.v @@ -0,0 +1,331 @@ +`timescale 1ns / 1ps + +module testbench; + parameter integer A0REG = 1; + parameter integer A1REG = 1; + parameter integer B0REG = 1; + parameter integer B1REG = 1; + parameter integer CREG = 1; + parameter integer DREG = 1; + parameter integer MREG = 1; + parameter integer PREG = 1; + parameter integer CARRYINREG = 1; + parameter integer CARRYOUTREG = 1; + parameter integer OPMODEREG = 1; + parameter CARRYINSEL = "OPMODE5"; + parameter RSTTYPE = "SYNC"; + + reg CLK; + reg CEA, CEB, CEC, CED, CEM, CEP, CECARRYIN, CEOPMODE; + reg RSTA, RSTB, RSTC, RSTD, RSTM, RSTP, RSTCARRYIN, RSTOPMODE; + reg [17:0] A; + reg [17:0] B; + reg [47:0] C; + reg [17:0] D; + reg [47:0] PCIN; + reg [7:0] OPMODE; + reg CARRYIN; + + output CARRYOUTF, REF_CARRYOUTF; + output CARRYOUT, REF_CARRYOUT, REF_OLD_CARRYOUT; + output [35:0] M, REF_M; + output [47:0] P, REF_P, REF_OLD_P; + output [17:0] BCOUT, REF_BCOUT, REF_OLD_BCOUT; + output [47:0] PCOUT, REF_PCOUT, REF_OLD_PCOUT; + + integer errcount = 0; + + reg ERROR_FLAG = 0; + + task clkcycle; + begin + #5; + CLK = ~CLK; + #10; + CLK = ~CLK; + #2; + ERROR_FLAG = 0; + if (REF_BCOUT !== BCOUT || REF_OLD_BCOUT != BCOUT) begin + $display("ERROR at %1t: REF_BCOUT=%b REF_OLD_BCOUT=%b UUT_BCOUT=%b DIFF=%b", $time, REF_BCOUT, REF_OLD_BCOUT, BCOUT, REF_BCOUT ^ BCOUT); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + if (REF_M !== M) begin + $display("ERROR at %1t: REF_M=%b UUT_M=%b DIFF=%b", $time, REF_M, M, REF_M ^ M); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + if (REF_P !== P || REF_OLD_P != P) begin + $display("ERROR at %1t: REF_P=%b REF_OLD_P=%b UUT_P=%b DIFF=%b", $time, REF_P, REF_OLD_P, P, REF_P ^ P); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + if (REF_PCOUT !== PCOUT || REF_OLD_PCOUT != PCOUT) begin + $display("ERROR at %1t: REF_PCOUT=%b REF_OLD_PCOUT=%b UUT_PCOUT=%b DIFF=%b", $time, REF_PCOUT, REF_OLD_PCOUT, PCOUT, REF_PCOUT ^ PCOUT); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + if (REF_CARRYOUT !== CARRYOUT || (REF_OLD_CARRYOUT != CARRYOUT && !CARRYOUTREG)) begin + $display("ERROR at %1t: REF_CARRYOUT=%b REF_OLD_CARRYOUT=%b UUT_CARRYOUT=%b DIFF=%b", $time, REF_CARRYOUT, REF_OLD_CARRYOUT, CARRYOUT, REF_CARRYOUT ^ CARRYOUT); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + if (REF_CARRYOUTF !== CARRYOUTF) begin + $display("ERROR at %1t: REF_CARRYOUTF=%b UUT_CARRYOUTF=%b", $time, REF_CARRYOUTF, CARRYOUTF); + errcount = errcount + 1; + ERROR_FLAG = 1; + end + #3; + end + endtask + + reg config_valid = 0; + task drc; + begin + config_valid = 1; + + if (OPMODE[1:0] == 2'b10 && PREG != 1) config_valid = 0; + if (OPMODE[3:2] == 2'b10 && PREG != 1) config_valid = 0; + end + endtask + + initial begin + $dumpfile("test_dsp48a1_model.vcd"); + $dumpvars(0, testbench); + + #2; + CLK = 1'b0; + {CEA, CEB, CEC, CED, CEM, CEP, CECARRYIN, CEOPMODE} = 8'b11111111; + {A, B, C, D, PCIN, OPMODE, CARRYIN} = 0; + {RSTA, RSTB, RSTC, RSTD, RSTM, RSTP, RSTCARRYIN, RSTOPMODE} = 8'b11111111; + repeat (10) begin + #10; + CLK = 1'b1; + #10; + CLK = 1'b0; + #10; + CLK = 1'b1; + #10; + CLK = 1'b0; + end + {RSTA, RSTB, RSTC, RSTD, RSTM, RSTP, RSTCARRYIN, RSTOPMODE} = 0; + + repeat (10000) begin + clkcycle; + config_valid = 0; + while (!config_valid) begin + A = $urandom; + B = $urandom; + C = {$urandom, $urandom}; + D = $urandom; + PCIN = {$urandom, $urandom}; + + {CEA, CEB, CEC, CED, CEM, CEP, CECARRYIN, CEOPMODE} = $urandom | $urandom | $urandom; + {RSTA, RSTB, RSTC, RSTD, RSTM, RSTP, RSTCARRYIN, RSTOPMODE} = $urandom & $urandom & $urandom & $urandom & $urandom & $urandom; + {CARRYIN, OPMODE} = $urandom; + + drc; + end + end + + if (errcount == 0) begin + $display("All tests passed."); + $finish; + end else begin + $display("Caught %1d errors.", errcount); + $stop; + end + end + + DSP48A #( + .A0REG (A0REG), + .A1REG (A1REG), + .B0REG (B0REG), + .B1REG (B1REG), + .CREG (CREG), + .DREG (DREG), + .MREG (MREG), + .PREG (PREG), + .CARRYINREG (CARRYINREG), + .OPMODEREG (OPMODEREG), + .CARRYINSEL (CARRYINSEL), + .RSTTYPE (RSTTYPE) + ) ref_old ( + .A (A), + .B (B), + .C (C), + .D (D), + .PCIN (PCIN), + .CARRYIN (CARRYIN), + .OPMODE (OPMODE), + .BCOUT (REF_OLD_BCOUT), + .CARRYOUT (REF_OLD_CARRYOUT), + .P (REF_OLD_P), + .PCOUT (REF_OLD_PCOUT), + .CEA (CEA), + .CEB (CEB), + .CEC (CEC), + .CED (CED), + .CEM (CEM), + .CEP (CEP), + .CECARRYIN (CECARRYIN), + .CEOPMODE (CEOPMODE), + .CLK (CLK), + .RSTA (RSTA), + .RSTB (RSTB), + .RSTC (RSTC), + .RSTD (RSTD), + .RSTM (RSTM), + .RSTP (RSTP), + .RSTCARRYIN (RSTCARRYIN), + .RSTOPMODE (RSTOPMODE) + ); + + DSP48A1 #( + .A0REG (A0REG), + .A1REG (A1REG), + .B0REG (B0REG), + .B1REG (B1REG), + .CREG (CREG), + .DREG (DREG), + .MREG (MREG), + .PREG (PREG), + .CARRYINREG (CARRYINREG), + .CARRYOUTREG (CARRYOUTREG), + .OPMODEREG (OPMODEREG), + .CARRYINSEL (CARRYINSEL), + .RSTTYPE (RSTTYPE) + ) ref ( + .A (A), + .B (B), + .C (C), + .D (D), + .PCIN (PCIN), + .CARRYIN (CARRYIN), + .OPMODE (OPMODE), + .BCOUT (REF_BCOUT), + .CARRYOUTF (REF_CARRYOUTF), + .CARRYOUT (REF_CARRYOUT), + .P (REF_P), + .M (REF_M), + .PCOUT (REF_PCOUT), + .CEA (CEA), + .CEB (CEB), + .CEC (CEC), + .CED (CED), + .CEM (CEM), + .CEP (CEP), + .CECARRYIN (CECARRYIN), + .CEOPMODE (CEOPMODE), + .CLK (CLK), + .RSTA (RSTA), + .RSTB (RSTB), + .RSTC (RSTC), + .RSTD (RSTD), + .RSTM (RSTM), + .RSTP (RSTP), + .RSTCARRYIN (RSTCARRYIN), + .RSTOPMODE (RSTOPMODE) + ); + + DSP48A1_UUT #( + .A0REG (A0REG), + .A1REG (A1REG), + .B0REG (B0REG), + .B1REG (B1REG), + .CREG (CREG), + .DREG (DREG), + .MREG (MREG), + .PREG (PREG), + .CARRYINREG (CARRYINREG), + .CARRYOUTREG (CARRYOUTREG), + .OPMODEREG (OPMODEREG), + .CARRYINSEL (CARRYINSEL), + .RSTTYPE (RSTTYPE) + ) uut ( + .A (A), + .B (B), + .C (C), + .D (D), + .PCIN (PCIN), + .CARRYIN (CARRYIN), + .OPMODE (OPMODE), + .BCOUT (BCOUT), + .CARRYOUTF (CARRYOUTF), + .CARRYOUT (CARRYOUT), + .P (P), + .M (M), + .PCOUT (PCOUT), + .CEA (CEA), + .CEB (CEB), + .CEC (CEC), + .CED (CED), + .CEM (CEM), + .CEP (CEP), + .CECARRYIN (CECARRYIN), + .CEOPMODE (CEOPMODE), + .CLK (CLK), + .RSTA (RSTA), + .RSTB (RSTB), + .RSTC (RSTC), + .RSTD (RSTD), + .RSTM (RSTM), + .RSTP (RSTP), + .RSTCARRYIN (RSTCARRYIN), + .RSTOPMODE (RSTOPMODE) + ); +endmodule + +module mult_noreg; + testbench #( + .A0REG (0), + .A1REG (0), + .B0REG (0), + .B1REG (0), + .CREG (0), + .DREG (0), + .MREG (0), + .PREG (0), + .CARRYINREG (0), + .CARRYOUTREG (0), + .OPMODEREG (0), + .CARRYINSEL ("CARRYIN"), + .RSTTYPE ("SYNC") + ) testbench (); +endmodule + +module mult_allreg; + testbench #( + .A0REG (1), + .A1REG (1), + .B0REG (1), + .B1REG (1), + .CREG (1), + .DREG (1), + .MREG (1), + .PREG (1), + .CARRYINREG (1), + .CARRYOUTREG (1), + .OPMODEREG (1), + .CARRYINSEL ("OPMODE5"), + .RSTTYPE ("SYNC") + ) testbench (); +endmodule + +module mult_inreg; + testbench #( + .A0REG (1), + .A1REG (1), + .B0REG (1), + .B1REG (1), + .CREG (1), + .DREG (1), + .MREG (0), + .PREG (0), + .CARRYINREG (1), + .CARRYOUTREG (0), + .OPMODEREG (0), + .CARRYINSEL ("CARRYIN"), + .RSTTYPE ("SYNC") + ) testbench (); +endmodule diff --git a/techlibs/xilinx/tests/test_dsp_model.sh b/techlibs/xilinx/tests/test_dsp_model.sh index ae925c402..d005cd40c 100644 --- a/techlibs/xilinx/tests/test_dsp_model.sh +++ b/techlibs/xilinx/tests/test_dsp_model.sh @@ -1,14 +1,17 @@ #!/bin/bash set -ex +if [ -z $VIVADO_DIR ]; then + VIVADO_DIR=/opt/Xilinx/Vivado/2019.1 +fi sed 's/DSP48E1/DSP48E1_UUT/; /DSP48E1_UUT/,/endmodule/ p; d;' < ../cells_sim.v > test_dsp_model_uut.v if [ ! -f "test_dsp_model_ref.v" ]; then - cat /opt/Xilinx/Vivado/2019.1/data/verilog/src/unisims/DSP48E1.v > test_dsp_model_ref.v + cp $VIVADO_DIR/data/verilog/src/unisims/DSP48E1.v test_dsp_model_ref.v fi for tb in macc_overflow_underflow \ - simd24_preadd_noreg_nocasc simd12_preadd_noreg_nocasc \ - mult_allreg_nopreadd_nocasc mult_noreg_nopreadd_nocasc \ + simd24_preadd_noreg_nocasc simd12_preadd_noreg_nocasc \ + mult_allreg_nopreadd_nocasc mult_noreg_nopreadd_nocasc \ mult_allreg_preadd_nocasc mult_noreg_preadd_nocasc mult_inreg_preadd_nocasc do - iverilog -s $tb -s glbl -o test_dsp_model test_dsp_model.v test_dsp_model_uut.v test_dsp_model_ref.v /opt/Xilinx/Vivado/2019.1/data/verilog/src/glbl.v + iverilog -s $tb -s glbl -o test_dsp_model test_dsp_model.v test_dsp_model_uut.v test_dsp_model_ref.v $VIVADO_DIR/data/verilog/src/glbl.v vvp -N ./test_dsp_model done diff --git a/techlibs/xilinx/xc3sda_dsp_map.v b/techlibs/xilinx/xc3sda_dsp_map.v index 87348a173..258f90395 100644 --- a/techlibs/xilinx/xc3sda_dsp_map.v +++ b/techlibs/xilinx/xc3sda_dsp_map.v @@ -27,7 +27,7 @@ module \$__MUL18X18 (input [17:0] A, input [17:0] B, output [35:0] Y); .D(18'b0), .P(P_48), - .OPMODE(8'b0000010) + .OPMODE(8'b0000001) ); assign Y = P_48; endmodule diff --git a/techlibs/xilinx/xc6s_dsp_map.v b/techlibs/xilinx/xc6s_dsp_map.v index e8705723b..bdce60c14 100644 --- a/techlibs/xilinx/xc6s_dsp_map.v +++ b/techlibs/xilinx/xc6s_dsp_map.v @@ -27,7 +27,7 @@ module \$__MUL18X18 (input [17:0] A, input [17:0] B, output [35:0] Y); .D(18'b0), .P(P_48), - .OPMODE(8'b0000010) + .OPMODE(8'b0000001) ); assign Y = P_48; endmodule diff --git a/techlibs/xilinx/xc6s_ff_map.v b/techlibs/xilinx/xc6s_ff_map.v index bf35b09e5..c40f446e0 100644 --- a/techlibs/xilinx/xc6s_ff_map.v +++ b/techlibs/xilinx/xc6s_ff_map.v @@ -27,6 +27,8 @@ `ifndef _NO_FFS +// No reset. + module \$_DFF_N_ (input D, C, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) @@ -46,6 +48,8 @@ module \$_DFF_P_ (input D, C, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +// No reset, enable. + module \$_DFFE_NP_ (input D, C, E, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) @@ -65,80 +69,168 @@ module \$_DFFE_PP_ (input D, C, E, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NN0_ (input D, C, R, output Q); +// Async reset. + +module \$_DFF_NP0_ (input D, C, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) $error("Spartan 6 doesn't support FFs with asynchronous reset initialized to 1"); else - FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); + FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NP0_ (input D, C, R, output Q); +module \$_DFF_PP0_ (input D, C, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) $error("Spartan 6 doesn't support FFs with asynchronous reset initialized to 1"); else - FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); + FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PN0_ (input D, C, R, output Q); + +module \$_DFF_NP1_ (input D, C, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) + $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); + else + FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$_DFF_PP1_ (input D, C, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) + $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); + else + FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Async reset, enable. + +module \$__DFFE_NP0 (input D, C, E, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) $error("Spartan 6 doesn't support FFs with asynchronous reset initialized to 1"); else - FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); + FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .CLR( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PP0_ (input D, C, R, output Q); +module \$__DFFE_PP0 (input D, C, E, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) $error("Spartan 6 doesn't support FFs with asynchronous reset initialized to 1"); else - FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); + FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .CLR( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NN1_ (input D, C, R, output Q); +module \$__DFFE_NP1 (input D, C, E, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); else - FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); + FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .PRE( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NP1_ (input D, C, R, output Q); +module \$__DFFE_PP1 (input D, C, E, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); else - FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .PRE( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Sync reset. + +module \$__DFFS_NP0_ (input D, C, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) + $error("Spartan 6 doesn't support FFs with reset initialized to 1"); + else + FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PN1_ (input D, C, R, output Q); +module \$__DFFS_PP0_ (input D, C, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) + $error("Spartan 6 doesn't support FFs with reset initialized to 1"); + else + FDRE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$__DFFS_NP1_ (input D, C, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) - $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); + $error("Spartan 6 doesn't support FFs with set initialized to 0"); else - FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); + FDSE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .S( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PP1_ (input D, C, R, output Q); +module \$__DFFS_PP1_ (input D, C, R, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) - $error("Spartan 6 doesn't support FFs with asynchronous set initialized to 0"); + $error("Spartan 6 doesn't support FFs with set initialized to 0"); else - FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + FDSE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .S( R)); endgenerate wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +// Sync reset, enable. + +module \$__DFFSE_NP0 (input D, C, E, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) + $error("Spartan 6 doesn't support FFs with reset initialized to 1"); + else + FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$__DFFSE_PP0 (input D, C, E, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) + $error("Spartan 6 doesn't support FFs with reset initialized to 1"); + else + FDRE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$__DFFSE_NP1 (input D, C, E, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) + $error("Spartan 6 doesn't support FFs with set initialized to 0"); + else + FDSE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .S( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$__DFFSE_PP1 (input D, C, E, R, output Q); + parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; + generate if (_TECHMAP_WIREINIT_Q_ === 1'b0) + $error("Spartan 6 doesn't support FFs with set initialized to 0"); + else + FDSE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .S( R)); + endgenerate + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Latches (no reset). + module \$_DLATCH_N_ (input E, D, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; generate if (_TECHMAP_WIREINIT_Q_ === 1'b1) @@ -158,5 +250,7 @@ module \$_DLATCH_P_ (input E, D, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +// Latches with reset (TODO). + `endif diff --git a/techlibs/xilinx/xc7_ff_map.v b/techlibs/xilinx/xc7_ff_map.v index 32ca9f560..2bd874457 100644 --- a/techlibs/xilinx/xc7_ff_map.v +++ b/techlibs/xilinx/xc7_ff_map.v @@ -37,6 +37,8 @@ `ifndef _NO_FFS +// No reset. + module \$_DFF_N_ (input D, C, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R(1'b0)); @@ -48,6 +50,8 @@ module \$_DFF_P_ (input D, C, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +// No reset, enable. + module \$_DFFE_NP_ (input D, C, E, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R(1'b0)); @@ -59,47 +63,103 @@ module \$_DFFE_PP_ (input D, C, E, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NN0_ (input D, C, R, output Q); +// Async reset. + +module \$_DFF_NP0_ (input D, C, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); + FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NP0_ (input D, C, R, output Q); +module \$_DFF_PP0_ (input D, C, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); + FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PN0_ (input D, C, R, output Q); + +module \$_DFF_NP1_ (input D, C, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); + FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PP0_ (input D, C, R, output Q); +module \$_DFF_PP1_ (input D, C, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); + FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NN1_ (input D, C, R, output Q); +// Async reset, enable. + +module \$__DFFE_NP0 (input D, C, E, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); + FDCE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .CLR( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_NP1_ (input D, C, R, output Q); +module \$__DFFE_PP0 (input D, C, E, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + FDCE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .CLR( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PN1_ (input D, C, R, output Q); + +module \$__DFFE_NP1 (input D, C, E, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); + FDPE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .PRE( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule -module \$_DFF_PP1_ (input D, C, R, output Q); +module \$__DFFE_PP1 (input D, C, E, R, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; - FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); + FDPE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .PRE( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Sync reset. + +module \$__DFFS_NP0_ (input D, C, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R( R)); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +module \$__DFFS_PP0_ (input D, C, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDRE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$__DFFS_NP1_ (input D, C, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDSE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .S( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$__DFFS_PP1_ (input D, C, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDSE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .S( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Sync reset, enable. + +module \$__DFFSE_NP0 (input D, C, E, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDRE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$__DFFSE_PP0 (input D, C, E, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDRE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +module \$__DFFSE_NP1 (input D, C, E, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDSE_1 #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .S( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule +module \$__DFFSE_PP1 (input D, C, E, R, output Q); + parameter _TECHMAP_WIREINIT_Q_ = 1'bx; + FDSE #(.INIT(_TECHMAP_WIREINIT_Q_)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .S( R)); + wire _TECHMAP_REMOVEINIT_Q_ = 1; +endmodule + +// Latches (no reset). module \$_DLATCH_N_ (input E, D, output Q); parameter _TECHMAP_WIREINIT_Q_ = 1'bx; @@ -112,5 +172,7 @@ module \$_DLATCH_P_ (input E, D, output Q); wire _TECHMAP_REMOVEINIT_Q_ = 1; endmodule +// Latches with reset (TODO). + `endif diff --git a/techlibs/xilinx/xc7_xcu_brams.txt b/techlibs/xilinx/xc7_xcu_brams.txt index f1161114e..c63218ae1 100644 --- a/techlibs/xilinx/xc7_xcu_brams.txt +++ b/techlibs/xilinx/xc7_xcu_brams.txt @@ -1,4 +1,3 @@ - bram $__XILINX_RAMB36_SDP init 1 abits 9 @@ -72,34 +71,79 @@ bram $__XILINX_RAMB18_TDP clkpol 2 3 endbram +# The "min bits" value were taken from: +# [[CITE]] 7 Series FPGAs Memory Resources User Guide (UG473), +# v1.14 ed., p 29-30, July, 2019. +# https://www.xilinx.com/support/documentation/user_guides/ug473_7Series_Memory_Resources.pdf + match $__XILINX_RAMB36_SDP - min bits 4096 + attribute !ram_style + attribute !logic_block + min bits 1024 min efficiency 5 shuffle_enable B make_transp or_next_if_better endmatch +match $__XILINX_RAMB36_SDP + attribute ram_style=block ram_block + attribute !logic_block + shuffle_enable B + make_transp + or_next_if_better +endmatch + match $__XILINX_RAMB18_SDP - min bits 4096 + attribute !ram_style + attribute !logic_block + min bits 1024 min efficiency 5 shuffle_enable B make_transp or_next_if_better endmatch +match $__XILINX_RAMB18_SDP + attribute ram_style=block ram_block + attribute !logic_block + shuffle_enable B + make_transp + or_next_if_better +endmatch + match $__XILINX_RAMB36_TDP - min bits 4096 + attribute !ram_style + attribute !logic_block + min bits 1024 min efficiency 5 shuffle_enable B make_transp or_next_if_better endmatch +match $__XILINX_RAMB36_TDP + attribute ram_style=block ram_block + attribute !logic_block + shuffle_enable B + make_transp + or_next_if_better +endmatch + match $__XILINX_RAMB18_TDP - min bits 4096 + attribute !ram_style + attribute !logic_block + min bits 1024 min efficiency 5 shuffle_enable B make_transp + or_next_if_better +endmatch + +match $__XILINX_RAMB18_TDP + attribute ram_style=block ram_block + attribute !logic_block + shuffle_enable B + make_transp endmatch diff --git a/techlibs/xilinx/xilinx_dffopt.cc b/techlibs/xilinx/xilinx_dffopt.cc new file mode 100644 index 000000000..13a0b9b83 --- /dev/null +++ b/techlibs/xilinx/xilinx_dffopt.cc @@ -0,0 +1,365 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/yosys.h" +#include "kernel/sigtools.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +typedef std::pair<Const, std::vector<SigBit>> LutData; + +// Compute a LUT implementing (select ^ select_inv) ? alt_data : data. Returns true if successful. +bool merge_lut(LutData &result, const LutData &data, const LutData select, bool select_inv, SigBit alt_data, int max_lut_size) { + // First, gather input signals -- insert new signals at the beginning + // of the vector, so they don't disturb the likely-critical D LUT input + // timings. + result.second = data.second; + // D lut inputs initially start at 0. + int idx_data = 0; + // Now add the control input LUT inputs. + std::vector<int> idx_sel; + for (auto bit : select.second) { + int idx = -1; + for (int i = 0; i < GetSize(result.second); i++) + if (result.second[i] == bit) + idx = i; + if (idx == -1) { + idx = 0; + // Insert new signal at the beginning and bump all indices. + result.second.insert(result.second.begin(), bit); + idx_data++; + for (int &sidx : idx_sel) + sidx++; + } + idx_sel.push_back(idx); + } + // Insert the Q signal, if any, to the slowest input -- it will have + // no problem meeting timing. + int idx_alt = -1; + if (alt_data.wire) { + // Check if we already have it. + for (int i = 0; i < GetSize(result.second); i++) + if (result.second[i] == alt_data) + idx_alt = i; + // If not, add it. + if (idx_alt == -1) { + idx_alt = 0; + result.second.insert(result.second.begin(), alt_data); + idx_data++; + for (int &sidx : idx_sel) + sidx++; + } + } + + // If LUT would be too large, bail. + if (GetSize(result.second) > max_lut_size) + return false; + + // Okay, we're doing it — compute the LUT mask. + result.first = Const(0, 1 << GetSize(result.second)); + for (int i = 0; i < GetSize(result.first); i++) { + int sel_lut_idx = 0; + for (int j = 0; j < GetSize(select.second); j++) + if (i & 1 << idx_sel[j]) + sel_lut_idx |= 1 << j; + bool select_val = (select.first.bits[sel_lut_idx] == State::S1); + bool new_bit; + if (select_val ^ select_inv) { + // Use alt_data. + if (alt_data.wire) + new_bit = (i & 1 << idx_alt) != 0; + else + new_bit = alt_data.data == State::S1; + } else { + // Use original LUT. + int lut_idx = i >> idx_data & ((1 << GetSize(data.second)) - 1); + new_bit = data.first.bits[lut_idx] == State::S1; + } + result.first.bits[i] = new_bit ? State::S1 : State::S0; + } + return true; +} + +struct XilinxDffOptPass : public Pass { + XilinxDffOptPass() : Pass("xilinx_dffopt", "Xilinx: optimize FF control signal usage") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" xilinx_dffopt [options] [selection]\n"); + log("\n"); + log("Converts hardware clock enable and set/reset signals on FFs to emulation\n"); + log("using LUTs, if doing so would improve area. Operates on post-techmap Xilinx\n"); + log("cells (LUT*, FD*).\n"); + log("\n"); + log(" -lut4\n"); + log(" Assume a LUT4-based device (instead of a LUT6-based device).\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing XILINX_DFFOPT pass (optimize FF control signal usage).\n"); + + size_t argidx; + int max_lut_size = 6; + for (argidx = 1; argidx < args.size(); argidx++) + { + if (args[argidx] == "-lut4") { + max_lut_size = 4; + continue; + } + break; + } + extra_args(args, argidx, design); + + for (auto module : design->selected_modules()) + { + log("Optimizing FFs in %s.\n", log_id(module)); + + SigMap sigmap(module); + dict<SigBit, pair<LutData, Cell *>> bit_to_lut; + dict<SigBit, int> bit_uses; + + // Gather LUTs. + for (auto cell : module->selected_cells()) + { + for (auto port : cell->connections()) + for (auto bit : port.second) + bit_uses[sigmap(bit)]++; + if (cell->get_bool_attribute(ID::keep)) + continue; + if (cell->type == ID(INV)) { + SigBit sigout = sigmap(cell->getPort(ID(O))); + SigBit sigin = sigmap(cell->getPort(ID(I))); + bit_to_lut[sigout] = make_pair(LutData(Const(1, 2), {sigin}), cell); + } else if (cell->type.in(ID(LUT1), ID(LUT2), ID(LUT3), ID(LUT4), ID(LUT5), ID(LUT6))) { + SigBit sigout = sigmap(cell->getPort(ID(O))); + const Const &init = cell->getParam(ID(INIT)); + std::vector<SigBit> sigin; + sigin.push_back(sigmap(cell->getPort(ID(I0)))); + if (cell->type == ID(LUT1)) + goto lut_sigin_done; + sigin.push_back(sigmap(cell->getPort(ID(I1)))); + if (cell->type == ID(LUT2)) + goto lut_sigin_done; + sigin.push_back(sigmap(cell->getPort(ID(I2)))); + if (cell->type == ID(LUT3)) + goto lut_sigin_done; + sigin.push_back(sigmap(cell->getPort(ID(I3)))); + if (cell->type == ID(LUT4)) + goto lut_sigin_done; + sigin.push_back(sigmap(cell->getPort(ID(I4)))); + if (cell->type == ID(LUT5)) + goto lut_sigin_done; + sigin.push_back(sigmap(cell->getPort(ID(I5)))); +lut_sigin_done: + bit_to_lut[sigout] = make_pair(LutData(init, sigin), cell); + } + } + for (auto wire : module->wires()) + if (wire->port_output || wire->port_input) + for (int i = 0; i < GetSize(wire); i++) + bit_uses[sigmap(SigBit(wire, i))]++; + + // Iterate through FFs. + for (auto cell : module->selected_cells()) + { + bool has_s = false, has_r = false; + if (cell->type.in(ID(FDCE), ID(FDPE), ID(FDCPE), ID(FDCE_1), ID(FDPE_1), ID(FDCPE_1))) { + // Async reset. + } else if (cell->type.in(ID(FDRE), ID(FDRE_1))) { + has_r = true; + } else if (cell->type.in(ID(FDSE), ID(FDSE_1))) { + has_s = true; + } else if (cell->type.in(ID(FDRSE), ID(FDRSE_1))) { + has_r = true; + has_s = true; + } else { + // Not a FF. + continue; + } + if (cell->get_bool_attribute(ID::keep)) + continue; + + // Don't bother if D has more than one use. + SigBit sig_D = sigmap(cell->getPort(ID(D))); + if (bit_uses[sig_D] > 2) + continue; + + // Find the D LUT. + auto it_D = bit_to_lut.find(sig_D); + if (it_D == bit_to_lut.end()) + continue; + LutData lut_d = it_D->second.first; + Cell *cell_d = it_D->second.second; + if (cell->hasParam(ID(IS_D_INVERTED)) && cell->getParam(ID(IS_D_INVERTED)).as_bool()) { + // Flip all bits in the LUT. + for (int i = 0; i < GetSize(lut_d.first); i++) + lut_d.first.bits[i] = (lut_d.first.bits[i] == State::S1) ? State::S0 : State::S1; + } + + LutData lut_d_post_ce; + LutData lut_d_post_s; + LutData lut_d_post_r; + bool worthy_post_ce = false; + bool worthy_post_s = false; + bool worthy_post_r = false; + + // First, unmap CE. + SigBit sig_Q = sigmap(cell->getPort(ID(Q))); + SigBit sig_CE = sigmap(cell->getPort(ID(CE))); + LutData lut_ce = LutData(Const(2, 2), {sig_CE}); + auto it_CE = bit_to_lut.find(sig_CE); + if (it_CE != bit_to_lut.end()) + lut_ce = it_CE->second.first; + if (sig_CE.wire) { + // Merge CE LUT and D LUT into one. If it cannot be done, nothing to do about this FF. + if (!merge_lut(lut_d_post_ce, lut_d, lut_ce, true, sig_Q, max_lut_size)) + continue; + + // If this gets rid of a CE LUT, it's worth it. If not, it still may be worth it, if we can remove set/reset as well. + if (it_CE != bit_to_lut.end()) + worthy_post_ce = true; + } else if (sig_CE.data != State::S1) { + // Strange. Should not happen in a reasonable flow, so bail. + continue; + } else { + lut_d_post_ce = lut_d; + } + + // Second, unmap S, if any. + lut_d_post_s = lut_d_post_ce; + if (has_s) { + SigBit sig_S = sigmap(cell->getPort(ID(S))); + LutData lut_s = LutData(Const(2, 2), {sig_S}); + bool inv_s = cell->hasParam(ID(IS_S_INVERTED)) && cell->getParam(ID(IS_S_INVERTED)).as_bool(); + auto it_S = bit_to_lut.find(sig_S); + if (it_S != bit_to_lut.end()) + lut_s = it_S->second.first; + if (sig_S.wire) { + // Merge S LUT and D LUT into one. If it cannot be done, try to at least merge CE. + if (!merge_lut(lut_d_post_s, lut_d_post_ce, lut_s, inv_s, SigBit(State::S1), max_lut_size)) + goto unmap; + // If this gets rid of an S LUT, it's worth it. + if (it_S != bit_to_lut.end()) + worthy_post_s = true; + } else if (sig_S.data != (inv_s ? State::S1 : State::S0)) { + // Strange. Should not happen in a reasonable flow, so bail. + continue; + } + } + + // Third, unmap R, if any. + lut_d_post_r = lut_d_post_s; + if (has_r) { + SigBit sig_R = sigmap(cell->getPort(ID(R))); + LutData lut_r = LutData(Const(2, 2), {sig_R}); + bool inv_r = cell->hasParam(ID(IS_R_INVERTED)) && cell->getParam(ID(IS_R_INVERTED)).as_bool(); + auto it_R = bit_to_lut.find(sig_R); + if (it_R != bit_to_lut.end()) + lut_r = it_R->second.first; + if (sig_R.wire) { + // Merge R LUT and D LUT into one. If it cannot be done, try to at least merge CE/S. + if (!merge_lut(lut_d_post_r, lut_d_post_s, lut_r, inv_r, SigBit(State::S0), max_lut_size)) + goto unmap; + // If this gets rid of an S LUT, it's worth it. + if (it_R != bit_to_lut.end()) + worthy_post_r = true; + } else if (sig_R.data != (inv_r ? State::S1 : State::S0)) { + // Strange. Should not happen in a reasonable flow, so bail. + continue; + } + } + +unmap: + LutData final_lut; + if (worthy_post_r) { + final_lut = lut_d_post_r; + log(" Merging R LUT for %s/%s (%d -> %d)\n", log_id(cell), log_id(sig_Q.wire), GetSize(lut_d.second), GetSize(final_lut.second)); + } else if (worthy_post_s) { + final_lut = lut_d_post_s; + log(" Merging S LUT for %s/%s (%d -> %d)\n", log_id(cell), log_id(sig_Q.wire), GetSize(lut_d.second), GetSize(final_lut.second)); + } else if (worthy_post_ce) { + final_lut = lut_d_post_ce; + log(" Merging CE LUT for %s/%s (%d -> %d)\n", log_id(cell), log_id(sig_Q.wire), GetSize(lut_d.second), GetSize(final_lut.second)); + } else { + // Nothing to do here. + continue; + } + + // Okay, we're doing it. Unmap ports. + if (worthy_post_r) { + cell->unsetParam(ID(IS_R_INVERTED)); + cell->setPort(ID(R), Const(0, 1)); + } + if (has_s && (worthy_post_r || worthy_post_s)) { + cell->unsetParam(ID(IS_S_INVERTED)); + cell->setPort(ID(S), Const(0, 1)); + } + cell->setPort(ID(CE), Const(1, 1)); + cell->unsetParam(ID(IS_D_INVERTED)); + + // Create the new LUT. + Cell *lut_cell = 0; + switch (GetSize(final_lut.second)) { + case 1: + lut_cell = module->addCell(NEW_ID, ID(LUT1)); + break; + case 2: + lut_cell = module->addCell(NEW_ID, ID(LUT2)); + break; + case 3: + lut_cell = module->addCell(NEW_ID, ID(LUT3)); + break; + case 4: + lut_cell = module->addCell(NEW_ID, ID(LUT4)); + break; + case 5: + lut_cell = module->addCell(NEW_ID, ID(LUT5)); + break; + case 6: + lut_cell = module->addCell(NEW_ID, ID(LUT6)); + break; + default: + log_assert(!"unknown lut size"); + } + lut_cell->attributes = cell_d->attributes; + Wire *lut_out = module->addWire(NEW_ID); + lut_cell->setParam(ID(INIT), final_lut.first); + cell->setPort(ID(D), lut_out); + lut_cell->setPort(ID(O), lut_out); + lut_cell->setPort(ID(I0), final_lut.second[0]); + if (GetSize(final_lut.second) >= 2) + lut_cell->setPort(ID(I1), final_lut.second[1]); + if (GetSize(final_lut.second) >= 3) + lut_cell->setPort(ID(I2), final_lut.second[2]); + if (GetSize(final_lut.second) >= 4) + lut_cell->setPort(ID(I3), final_lut.second[3]); + if (GetSize(final_lut.second) >= 5) + lut_cell->setPort(ID(I4), final_lut.second[4]); + if (GetSize(final_lut.second) >= 6) + lut_cell->setPort(ID(I5), final_lut.second[5]); + } + } + } +} XilinxDffOptPass; + +PRIVATE_NAMESPACE_END + diff --git a/tests/arch/anlogic/counter.ys b/tests/arch/anlogic/counter.ys index d363ec24e..a6eab248c 100644 --- a/tests/arch/anlogic/counter.ys +++ b/tests/arch/anlogic/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -map +/anlogic/cells_sim.v synth_anlogic # equivalency check +equiv_opt -assert -multiclock -map +/anlogic/cells_sim.v synth_anlogic # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/anlogic/memory.ys b/tests/arch/anlogic/lutram.ys index 87b93c2fe..9ebb75443 100644 --- a/tests/arch/anlogic/memory.ys +++ b/tests/arch/anlogic/lutram.ys @@ -1,5 +1,5 @@ -read_verilog ../common/memory.v -hierarchy -top top +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r proc memory -nomap equiv_opt -run :prove -map +/anlogic/cells_sim.v synth_anlogic @@ -11,7 +11,7 @@ miter -equiv -flatten -make_assert -make_outputs gold gate miter #sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter design -load postopt -cd top +cd lutram_1w1r select -assert-count 8 t:AL_MAP_LUT2 select -assert-count 8 t:AL_MAP_LUT4 diff --git a/tests/arch/common/blockram.v b/tests/arch/common/blockram.v new file mode 100644 index 000000000..dbc6ca65c --- /dev/null +++ b/tests/arch/common/blockram.v @@ -0,0 +1,45 @@ +`default_nettype none +module sync_ram_sp #(parameter DATA_WIDTH=8, ADDRESS_WIDTH=10) + (input wire write_enable, clk, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in] <= data_in; + data_out_r <= memory[address_in]; + end + + assign data_out = data_out_r; +endmodule // sync_ram_sp + + +`default_nettype none +module sync_ram_sdp #(parameter DATA_WIDTH=8, ADDRESS_WIDTH=10) + (input wire clk, write_enable, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in_r, address_in_w, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in_w] <= data_in; + data_out_r <= memory[address_in_r]; + end + + assign data_out = data_out_r; +endmodule // sync_ram_sdp + diff --git a/tests/arch/common/lutram.v b/tests/arch/common/lutram.v new file mode 100644 index 000000000..9534b7619 --- /dev/null +++ b/tests/arch/common/lutram.v @@ -0,0 +1,42 @@ +module lutram_1w1r +#(parameter D_WIDTH=8, A_WIDTH=6) +( + input [D_WIDTH-1:0] data_a, + input [A_WIDTH:1] addr_a, + input we_a, clk, + output reg [D_WIDTH-1:0] q_a +); + // Declare the RAM variable + reg [D_WIDTH-1:0] ram[(2**A_WIDTH)-1:0]; + + // Port A + always @ (posedge clk) + begin + if (we_a) + ram[addr_a] <= data_a; + q_a <= ram[addr_a]; + end +endmodule + + +module lutram_1w3r +#(parameter D_WIDTH=8, A_WIDTH=5) +( + input [D_WIDTH-1:0] data_a, data_b, data_c, + input [A_WIDTH:1] addr_a, addr_b, addr_c, + input we_a, clk, + output reg [D_WIDTH-1:0] q_a, q_b, q_c +); + // Declare the RAM variable + reg [D_WIDTH-1:0] ram[(2**A_WIDTH)-1:0]; + + // Port A + always @ (posedge clk) + begin + if (we_a) + ram[addr_a] <= data_a; + q_a <= ram[addr_a]; + q_b <= ram[addr_b]; + q_c <= ram[addr_c]; + end +endmodule diff --git a/tests/arch/common/memory.v b/tests/arch/common/memory.v deleted file mode 100644 index cb7753f7b..000000000 --- a/tests/arch/common/memory.v +++ /dev/null @@ -1,21 +0,0 @@ -module top -( - input [7:0] data_a, - input [6:1] addr_a, - input we_a, clk, - output reg [7:0] q_a -); - // Declare the RAM variable - reg [7:0] ram[63:0]; - - // Port A - always @ (posedge clk) - begin - if (we_a) - begin - ram[addr_a] <= data_a; - q_a <= data_a; - end - q_a <= ram[addr_a]; - end -endmodule diff --git a/tests/arch/common/memory_attributes/attributes_test.v b/tests/arch/common/memory_attributes/attributes_test.v new file mode 100644 index 000000000..275800dd0 --- /dev/null +++ b/tests/arch/common/memory_attributes/attributes_test.v @@ -0,0 +1,88 @@ +`default_nettype none +module block_ram #(parameter DATA_WIDTH=4, ADDRESS_WIDTH=10) + (input wire write_enable, clk, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in] <= data_in; + data_out_r <= memory[address_in]; + end + + assign data_out = data_out_r; +endmodule // block_ram + +`default_nettype none +module distributed_ram #(parameter DATA_WIDTH=8, ADDRESS_WIDTH=4) + (input wire write_enable, clk, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in] <= data_in; + data_out_r <= memory[address_in]; + end + + assign data_out = data_out_r; +endmodule // distributed_ram + +`default_nettype none +module distributed_ram_manual #(parameter DATA_WIDTH=8, ADDRESS_WIDTH=4) + (input wire write_enable, clk, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + (* ram_style = "block" *) reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in] <= data_in; + data_out_r <= memory[address_in]; + end + + assign data_out = data_out_r; +endmodule // distributed_ram + +`default_nettype none +module distributed_ram_manual_syn #(parameter DATA_WIDTH=8, ADDRESS_WIDTH=4) + (input wire write_enable, clk, + input wire [DATA_WIDTH-1:0] data_in, + input wire [ADDRESS_WIDTH-1:0] address_in, + output wire [DATA_WIDTH-1:0] data_out); + + localparam WORD = (DATA_WIDTH-1); + localparam DEPTH = (2**ADDRESS_WIDTH-1); + + reg [WORD:0] data_out_r; + (* synthesis, ram_block *) reg [WORD:0] memory [0:DEPTH]; + + always @(posedge clk) begin + if (write_enable) + memory[address_in] <= data_in; + data_out_r <= memory[address_in]; + end + + assign data_out = data_out_r; +endmodule // distributed_ram + diff --git a/tests/arch/ecp5/bug1598.ys b/tests/arch/ecp5/bug1598.ys new file mode 100644 index 000000000..1d1682fcd --- /dev/null +++ b/tests/arch/ecp5/bug1598.ys @@ -0,0 +1,16 @@ +read_verilog <<EOT +module led_blink ( + input clk, + output ledc + ); + + reg [6:0] led_counter = 0; + always @( posedge clk ) begin + led_counter <= led_counter + 1; + end + assign ledc = !led_counter[ 6:3 ]; + +endmodule +EOT +proc +equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 -abc9 diff --git a/tests/arch/ecp5/counter.ys b/tests/arch/ecp5/counter.ys index f9f60fbff..e46001ffe 100644 --- a/tests/arch/ecp5/counter.ys +++ b/tests/arch/ecp5/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check +equiv_opt -assert -multiclock -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 4 t:CCU2C diff --git a/tests/arch/ecp5/memory.ys b/tests/arch/ecp5/lutram.ys index c82b7b405..e1ae7abd5 100644 --- a/tests/arch/ecp5/memory.ys +++ b/tests/arch/ecp5/lutram.ys @@ -1,5 +1,5 @@ -read_verilog ../common/memory.v -hierarchy -top top +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r proc memory -nomap equiv_opt -run :prove -map +/ecp5/cells_sim.v synth_ecp5 @@ -10,7 +10,7 @@ miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter design -load postopt -cd top +cd lutram_1w1r select -assert-count 24 t:L6MUX21 select -assert-count 71 t:LUT4 select -assert-count 32 t:PFUMX diff --git a/tests/arch/ecp5/macc.ys b/tests/arch/ecp5/macc.ys index 1863ea4d2..8da8d2f8e 100644 --- a/tests/arch/ecp5/macc.ys +++ b/tests/arch/ecp5/macc.ys @@ -3,8 +3,8 @@ hierarchy -top top proc # Blocked by issue #1358 (Missing ECP5 simulation models) #equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check -equiv_opt -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check -design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) +synth_ecp5 +#design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 1 t:MULT18X18D select -assert-count 4 t:CCU2C diff --git a/tests/arch/ecp5/mul.ys b/tests/arch/ecp5/mul.ys index 2105be52c..f887e9585 100644 --- a/tests/arch/ecp5/mul.ys +++ b/tests/arch/ecp5/mul.ys @@ -3,9 +3,9 @@ hierarchy -top top proc # Blocked by issue #1358 (Missing ECP5 simulation models) #equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check -equiv_opt -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check +synth_ecp5 -design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) +#design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 1 t:MULT18X18D select -assert-none t:MULT18X18D %% t:* %D diff --git a/tests/arch/ecp5/mux.ys b/tests/arch/ecp5/mux.ys index 92463aa32..22866832d 100644 --- a/tests/arch/ecp5/mux.ys +++ b/tests/arch/ecp5/mux.ys @@ -39,8 +39,8 @@ proc equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mux16 # Constrain all select calls below inside the top module -select -assert-count 8 t:L6MUX21 -select -assert-count 26 t:LUT4 -select -assert-count 12 t:PFUMX +select -assert-count 12 t:L6MUX21 +select -assert-count 34 t:LUT4 +select -assert-count 17 t:PFUMX select -assert-none t:LUT4 t:L6MUX21 t:PFUMX %% t:* %D diff --git a/tests/arch/efinix/counter.ys b/tests/arch/efinix/counter.ys index d20b8ae27..f8fb29a87 100644 --- a/tests/arch/efinix/counter.ys +++ b/tests/arch/efinix/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -map +/efinix/cells_sim.v synth_efinix # equivalency check +equiv_opt -assert -multiclock -map +/efinix/cells_sim.v synth_efinix # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/efinix/memory.ys b/tests/arch/efinix/lutram.ys index 6f6acdcde..dcf647ce0 100644 --- a/tests/arch/efinix/memory.ys +++ b/tests/arch/efinix/lutram.ys @@ -1,5 +1,5 @@ -read_verilog ../common/memory.v -hierarchy -top top +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r proc memory -nomap equiv_opt -run :prove -map +/efinix/cells_sim.v synth_efinix @@ -12,7 +12,7 @@ miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter design -load postopt -cd top +cd lutram_1w1r select -assert-count 1 t:EFX_GBUFCE select -assert-count 1 t:EFX_RAM_5K select -assert-none t:EFX_GBUFCE t:EFX_RAM_5K %% t:* %D diff --git a/tests/arch/gowin/counter.ys b/tests/arch/gowin/counter.ys index 920479d44..bdbc7ee24 100644 --- a/tests/arch/gowin/counter.ys +++ b/tests/arch/gowin/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -map +/gowin/cells_sim.v synth_gowin # equivalency check +equiv_opt -assert -multiclock -map +/gowin/cells_sim.v synth_gowin # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/gowin/memory.ys b/tests/arch/gowin/lutram.ys index 8f88cdd7c..56f69e7c5 100644 --- a/tests/arch/gowin/memory.ys +++ b/tests/arch/gowin/lutram.ys @@ -1,5 +1,5 @@ -read_verilog ../common/memory.v -hierarchy -top top +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r proc memory -nomap equiv_opt -run :prove -map +/gowin/cells_sim.v synth_gowin @@ -12,7 +12,7 @@ miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter design -load postopt -cd top +cd lutram_1w1r select -assert-count 8 t:RAM16S4 # other logic present that is not simple #select -assert-none t:RAM16S4 %% t:* %D diff --git a/tests/arch/ice40/bug1598.ys b/tests/arch/ice40/bug1598.ys new file mode 100644 index 000000000..8438cb979 --- /dev/null +++ b/tests/arch/ice40/bug1598.ys @@ -0,0 +1,16 @@ +read_verilog <<EOT +module led_blink ( + input clk, + output ledc + ); + + reg [6:0] led_counter = 0; + always @( posedge clk ) begin + led_counter <= led_counter + 1; + end + assign ledc = !led_counter[ 6:3 ]; + +endmodule +EOT +proc +equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -abc9 diff --git a/tests/arch/ice40/counter.ys b/tests/arch/ice40/counter.ys index f112eb97d..7bbc4f2c3 100644 --- a/tests/arch/ice40/counter.ys +++ b/tests/arch/ice40/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -map +/ice40/cells_sim.v synth_ice40 # equivalency check +equiv_opt -assert -multiclock -map +/ice40/cells_sim.v synth_ice40 # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 6 t:SB_CARRY diff --git a/tests/arch/ice40/memory.ys b/tests/arch/ice40/lutram.ys index c356e67fb..1ba40f8ec 100644 --- a/tests/arch/ice40/memory.ys +++ b/tests/arch/ice40/lutram.ys @@ -1,5 +1,5 @@ -read_verilog ../common/memory.v -hierarchy -top top +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r proc memory -nomap equiv_opt -run :prove -map +/ice40/cells_sim.v synth_ice40 @@ -10,6 +10,6 @@ miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter design -load postopt -cd top +cd lutram_1w1r select -assert-count 1 t:SB_RAM40_4K select -assert-none t:SB_RAM40_4K %% t:* %D diff --git a/tests/arch/ice40/mul.ys b/tests/arch/ice40/mul.ys index 9891b77d6..b8c3eb941 100644 --- a/tests/arch/ice40/mul.ys +++ b/tests/arch/ice40/mul.ys @@ -1,6 +1,6 @@ read_verilog ../common/mul.v hierarchy -top top -equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check +equiv_opt -assert -multiclock -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 1 t:SB_MAC16 diff --git a/tests/arch/ice40/rom.v b/tests/arch/ice40/rom.v index 0a0f41f37..71459fe38 100644 --- a/tests/arch/ice40/rom.v +++ b/tests/arch/ice40/rom.v @@ -2,7 +2,8 @@ Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 74]. */ module top(data, addr); -output [3:0] data; +output [3:0] data; // Note: this prompts a Yosys warning, but + // vendor doc does not contain 'reg' input [4:0] addr; always @(addr) begin case (addr) diff --git a/tests/arch/xilinx/add_sub.ys b/tests/arch/xilinx/add_sub.ys index 9dbddce47..313948cc5 100644 --- a/tests/arch/xilinx/add_sub.ys +++ b/tests/arch/xilinx/add_sub.ys @@ -1,7 +1,7 @@ read_verilog ../common/add_sub.v hierarchy -top top proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 14 t:LUT2 diff --git a/tests/arch/xilinx/adffs.ys b/tests/arch/xilinx/adffs.ys index e73bfe0b9..3328f9edc 100644 --- a/tests/arch/xilinx/adffs.ys +++ b/tests/arch/xilinx/adffs.ys @@ -3,7 +3,7 @@ design -save read hierarchy -top adff proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd adff # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG @@ -15,7 +15,7 @@ select -assert-none t:BUFG t:FDCE %% t:* %D design -load read hierarchy -top adffn proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd adffn # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG @@ -28,24 +28,23 @@ select -assert-none t:BUFG t:FDCE t:INV %% t:* %D design -load read hierarchy -top dffs proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd dffs # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG -select -assert-count 1 t:FDRE -select -assert-count 1 t:LUT2 +select -assert-count 1 t:FDSE -select -assert-none t:BUFG t:FDRE t:LUT2 %% t:* %D +select -assert-none t:BUFG t:FDSE %% t:* %D design -load read hierarchy -top ndffnr proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd ndffnr # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG select -assert-count 1 t:FDRE_1 -select -assert-count 1 t:LUT2 +select -assert-count 1 t:INV -select -assert-none t:BUFG t:FDRE_1 t:LUT2 %% t:* %D +select -assert-none t:BUFG t:FDRE_1 t:INV %% t:* %D diff --git a/tests/arch/xilinx/attributes_test.ys b/tests/arch/xilinx/attributes_test.ys new file mode 100644 index 000000000..7bdd94a63 --- /dev/null +++ b/tests/arch/xilinx/attributes_test.ys @@ -0,0 +1,47 @@ +# Check that blockram memory without parameters is not modified +read_verilog ../common/memory_attributes/attributes_test.v +hierarchy -top block_ram +synth_xilinx -top block_ram -noiopad +cd block_ram # Constrain all select calls below inside the top module +select -assert-count 1 t:RAMB18E1 + +# Check that distributed memory without parameters is not modified +design -reset +read_verilog ../common/memory_attributes/attributes_test.v +hierarchy -top distributed_ram +synth_xilinx -top distributed_ram -noiopad +cd distributed_ram # Constrain all select calls below inside the top module +select -assert-count 8 t:RAM32X1D + +# Set ram_style distributed to blockram memory; will be implemented as distributed +design -reset +read_verilog ../common/memory_attributes/attributes_test.v +prep +setattr -mod -set ram_style "distributed" block_ram +synth_xilinx -top block_ram -noiopad +cd block_ram # Constrain all select calls below inside the top module +select -assert-count 32 t:RAM128X1D + +# Set synthesis, logic_block to blockram memory; will be implemented as distributed +design -reset +read_verilog ../common/memory_attributes/attributes_test.v +prep +setattr -mod -set logic_block 1 block_ram +synth_xilinx -top block_ram -noiopad +cd block_ram # Constrain all select calls below inside the top module +select -assert-count 0 t:RAMB18E1 +select -assert-count 32 t:RAM128X1D + +# Set ram_style block to a distributed memory; will be implemented as blockram +design -reset +read_verilog ../common/memory_attributes/attributes_test.v +synth_xilinx -top distributed_ram_manual -noiopad +cd distributed_ram_manual # Constrain all select calls below inside the top module +select -assert-count 1 t:RAMB18E1 + +# Set synthesis, ram_block block to a distributed memory; will be implemented as blockram +design -reset +read_verilog ../common/memory_attributes/attributes_test.v +synth_xilinx -top distributed_ram_manual_syn -noiopad +cd distributed_ram_manual_syn # Constrain all select calls below inside the top module +select -assert-count 1 t:RAMB18E1 diff --git a/tests/arch/xilinx/blockram.ys b/tests/arch/xilinx/blockram.ys new file mode 100644 index 000000000..ed743cf44 --- /dev/null +++ b/tests/arch/xilinx/blockram.ys @@ -0,0 +1,97 @@ +### TODO: Not running equivalence checking because BRAM models does not exists +### currently. Checking instance counts instead. +# Memory bits <= 18K; Data width <= 36; Address width <= 14: -> RAMB18E1 +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 10 -set DATA_WIDTH 1 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 8 -set DATA_WIDTH 18 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 14 -set DATA_WIDTH 1 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 9 -set DATA_WIDTH 36 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +# Anything memory bits < 1024 -> LUTRAM +design -reset +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 8 -set DATA_WIDTH 2 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 0 t:RAMB18E1 +select -assert-count 4 t:RAM128X1D + +# More than 18K bits, data width <= 36 (TDP), and address width from 10 to 15b (non-cascaded) -> RAMB36E1 +design -reset +read_verilog ../common/blockram.v +chparam -set ADDRESS_WIDTH 10 -set DATA_WIDTH 36 sync_ram_sdp +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB36E1 + + +### With parameters + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 10 -chparam DATA_WIDTH 1 +setattr -set ram_style "block" m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 10 -chparam DATA_WIDTH 1 +setattr -set ram_block 1 m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 10 -chparam DATA_WIDTH 1 +setattr -set ram_style "dont_infer_a_ram_pretty_please" m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 0 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 10 -chparam DATA_WIDTH 1 +setattr -set logic_block 1 m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 0 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 8 -chparam DATA_WIDTH 1 +setattr -set ram_style "block" m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 + +design -reset +read_verilog ../common/blockram.v +hierarchy -top sync_ram_sdp -chparam ADDRESS_WIDTH 8 -chparam DATA_WIDTH 1 +setattr -set ram_block 1 m:memory +synth_xilinx -top sync_ram_sdp -noiopad +cd sync_ram_sdp +select -assert-count 1 t:RAMB18E1 diff --git a/tests/arch/xilinx/bug1460.ys b/tests/arch/xilinx/bug1460.ys new file mode 100644 index 000000000..09935ccd8 --- /dev/null +++ b/tests/arch/xilinx/bug1460.ys @@ -0,0 +1,34 @@ +read_verilog <<EOT +module register_file( + input wire clk, + input wire write_enable, + input wire [63:0] write_data, + input wire [4:0] write_reg, + input wire [4:0] read1_reg, + input wire [4:0] read2_reg, + input wire [4:0] read3_reg, + output reg [63:0] read1_data, + output reg [63:0] read2_data, + output reg [63:0] read3_data + ); + + reg [63:0] registers[0:31]; + + always @(posedge clk) begin + if (write_enable == 1'b1) begin + registers[write_reg] <= write_data; + end + end + + always @(all) begin + read1_data <= registers[read1_reg]; + read2_data <= registers[read2_reg]; + read3_data <= registers[read3_reg]; + end +endmodule +EOT + +synth_xilinx -noiopad +cd register_file +select -assert-count 32 t:RAM32M +select -assert-none t:* t:BUFG %d t:RAM32M %d diff --git a/tests/arch/xilinx/bug1598.ys b/tests/arch/xilinx/bug1598.ys new file mode 100644 index 000000000..1175380b1 --- /dev/null +++ b/tests/arch/xilinx/bug1598.ys @@ -0,0 +1,16 @@ +read_verilog <<EOT +module led_blink ( + input clk, + output ledc + ); + + reg [6:0] led_counter = 0; + always @( posedge clk ) begin + led_counter <= led_counter + 1; + end + assign ledc = !led_counter[ 6:3 ]; + +endmodule +EOT +proc +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -abc9 diff --git a/tests/arch/xilinx/bug1605.ys b/tests/arch/xilinx/bug1605.ys new file mode 100644 index 000000000..4be659860 --- /dev/null +++ b/tests/arch/xilinx/bug1605.ys @@ -0,0 +1,19 @@ +read_verilog <<EOT +module top(inout io); + wire in; + wire t; + wire o; + + IOBUF IOBUF( + .I(in), + .T(t), + .IO(io), + .O(o) + ); +endmodule +EOT + +synth_xilinx +cd top +select -assert-count 1 t:IOBUF +select -assert-none t:* t:IOBUF %d diff --git a/tests/arch/xilinx/counter.ys b/tests/arch/xilinx/counter.ys index 604acdbfc..11c29922e 100644 --- a/tests/arch/xilinx/counter.ys +++ b/tests/arch/xilinx/counter.ys @@ -2,7 +2,7 @@ read_verilog ../common/counter.v hierarchy -top top proc flatten -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/xilinx/dffs.ys b/tests/arch/xilinx/dffs.ys index 0bba4858f..dc764b033 100644 --- a/tests/arch/xilinx/dffs.ys +++ b/tests/arch/xilinx/dffs.ys @@ -3,7 +3,7 @@ design -save read hierarchy -top dff proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd dff # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG @@ -15,7 +15,7 @@ select -assert-none t:BUFG t:FDRE %% t:* %D design -load read hierarchy -top dffe proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd dffe # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG diff --git a/tests/arch/xilinx/dsp_cascade.ys b/tests/arch/xilinx/dsp_cascade.ys new file mode 100644 index 000000000..ca6b619b9 --- /dev/null +++ b/tests/arch/xilinx/dsp_cascade.ys @@ -0,0 +1,89 @@ +design -reset +read_verilog <<EOT +module cascade(input clk, input [4:0] a, input [4:0] b, output reg [9:0] o); +reg [4:0] ar1, ar2, ar3, br1, br2, br3; +reg [9:0] m, n; +always @(posedge clk) begin +ar1 <= a; +ar2 <= ar1; +ar3 <= ar2; +br1 <= b; +br2 <= br1; +br3 <= br2; +m <= ar1 * br1; +n <= ar2 * br2 + m; +o <= ar3 * br3 + n; +end +endmodule +EOT +proc +design -save read + +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad +design -load postopt +cd cascade +select -assert-count 3 t:DSP48E1 +select -assert-none t:DSP48E1 t:BUFG %% t:* %D +# Very crude method of checking that DSP48E1.PCOUT -> DSP48E1.PCIN +# (i.e. Take all DSP48E1s, expand to find all wires connected +# to its PCOUT port, then remove all DSP48E1s from this +# selection, then expand again to find all cells where +# those wires are connected to the PCIN port, then remove +# all wires from this selection, and lastly intersect +# this selection with all DSP48E1 cells (to check that +# the connected cells are indeed DSPs) +select -assert-count 2 t:DSP48E1 %co:+[PCOUT] t:DSP48E1 %d %co:+[PCIN] w:* %d t:DSP48E1 %i + +design -load read +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -family xc6s -noiopad +design -load postopt +cd cascade +select -assert-count 3 t:DSP48A1 +select -assert-count 5 t:FDRE # No cascade for A input +select -assert-none t:DSP48A1 t:BUFG t:FDRE %% t:* %D +# Very crude method of checking that DSP48E1.PCOUT -> DSP48E1.PCIN +# (see above for explanation) +select -assert-count 2 t:DSP48A1 %co:+[PCOUT] t:DSP48A1 %d %co:+[PCIN] w:* %d t:DSP48A1 %i + +design -reset +read_verilog <<EOT +module cascade(input clk, input [4:0] a, input [4:0] b, output reg [9:0] o); +reg [4:0] ar1, ar2, ar3, br1, br2, br3; +reg [9:0] m; +always @(posedge clk) begin +ar1 <= a; +ar2 <= ar1; +ar3 <= ar2; +br1 <= b; +br2 <= br1; +br3 <= br2; +m <= ar2 * br2; +o <= ar3 * br3 + m; +end +endmodule +EOT +proc +design -save read + +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad +design -load postopt +cd cascade +select -assert-count 2 t:DSP48E1 +select -assert-none t:DSP48E1 t:BUFG %% t:* %D +# Very crude method of checking that DSP48E1.PCOUT -> DSP48E1.PCIN +# (see above for explanation) +select -assert-count 1 t:DSP48E1 %co:+[PCOUT] t:DSP48E1 %d %co:+[PCIN] w:* %d t:DSP48E1 %i + +design -load read +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -family xc6s -noiopad +design -load postopt +cd cascade +select -assert-count 2 t:DSP48A1 +select -assert-count 10 t:FDRE # Cannot cascade because first 'm' DSP + # uses both B0REG and B1REG, whereas 'o' + # only requires 1 +select -assert-none t:DSP48A1 t:BUFG t:FDRE %% t:* %D +# Very crude method of checking that DSP48E1.PCOUT -> DSP48E1.PCIN +# (see above for explanation) +select -assert-count 1 t:DSP48A1 %co:+[PCOUT] t:DSP48A1 %d %co:+[PCIN] w:* %d t:DSP48A1 %i + diff --git a/tests/arch/xilinx/dsp_fastfir.ys b/tests/arch/xilinx/dsp_fastfir.ys index 0067a822b..57fe49bde 100644 --- a/tests/arch/xilinx/dsp_fastfir.ys +++ b/tests/arch/xilinx/dsp_fastfir.ys @@ -63,7 +63,7 @@ module fastfir_dynamictaps(i_clk, i_reset, i_tap_wr, i_tap, i_ce, i_sample, o_re endmodule EOT -synth_xilinx +synth_xilinx -noiopad cd fastfir_dynamictaps select -assert-count 2 t:DSP48E1 select -assert-none t:* t:DSP48E1 %d t:BUFG %d diff --git a/tests/arch/xilinx/fsm.ys b/tests/arch/xilinx/fsm.ys index 2a72c34e8..3235d5af3 100644 --- a/tests/arch/xilinx/fsm.ys +++ b/tests/arch/xilinx/fsm.ys @@ -3,7 +3,7 @@ hierarchy -top fsm proc flatten -equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad miter -equiv -make_assert -flatten gold gate miter sat -verify -prove-asserts -show-public -set-at 1 in_reset 1 -seq 20 -prove-skip 1 miter @@ -11,8 +11,9 @@ design -load postopt # load the post-opt design (otherwise equiv_opt loads the p cd fsm # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG -select -assert-count 5 t:FDRE -select -assert-count 1 t:LUT3 -select -assert-count 2 t:LUT4 -select -assert-count 4 t:LUT6 -select -assert-none t:BUFG t:FDRE t:LUT3 t:LUT4 t:LUT6 %% t:* %D +select -assert-count 4 t:FDRE +select -assert-count 1 t:FDSE +select -assert-count 1 t:LUT2 +select -assert-count 3 t:LUT5 +select -assert-count 1 t:LUT6 +select -assert-none t:BUFG t:FDRE t:FDSE t:LUT2 t:LUT5 t:LUT6 %% t:* %D diff --git a/tests/arch/xilinx/latches.ys b/tests/arch/xilinx/latches.ys index c87a8e38b..e226c2ec8 100644 --- a/tests/arch/xilinx/latches.ys +++ b/tests/arch/xilinx/latches.ys @@ -3,7 +3,7 @@ design -save read hierarchy -top latchp proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd latchp # Constrain all select calls below inside the top module select -assert-count 1 t:LDCE @@ -14,7 +14,7 @@ select -assert-none t:LDCE %% t:* %D design -load read hierarchy -top latchn proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd latchn # Constrain all select calls below inside the top module select -assert-count 1 t:LDCE @@ -26,7 +26,7 @@ select -assert-none t:LDCE t:INV %% t:* %D design -load read hierarchy -top latchsr proc -equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd latchsr # Constrain all select calls below inside the top module select -assert-count 1 t:LDCE diff --git a/tests/arch/xilinx/logic.ys b/tests/arch/xilinx/logic.ys index d5b5c1a37..61a9314cc 100644 --- a/tests/arch/xilinx/logic.ys +++ b/tests/arch/xilinx/logic.ys @@ -1,7 +1,7 @@ read_verilog ../common/logic.v hierarchy -top top proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/xilinx/lutram.ys b/tests/arch/xilinx/lutram.ys new file mode 100644 index 000000000..3f127a77e --- /dev/null +++ b/tests/arch/xilinx/lutram.ys @@ -0,0 +1,137 @@ +#read_verilog ../common/lutram.v +#hierarchy -top lutram_1w1r -chparam A_WIDTH 4 +#proc +#memory -nomap +#equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +#memory +#opt -full +# +#miter -equiv -flatten -make_assert -make_outputs gold gate miter +#sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter +# +#design -load postopt +#cd lutram_1w1r +#select -assert-count 1 t:BUFG +#select -assert-count 8 t:FDRE +#select -assert-count 8 t:RAM16X1D +#select -assert-none t:BUFG t:FDRE t:RAM16X1D %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r -chparam A_WIDTH 5 +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w1r +select -assert-count 1 t:BUFG +select -assert-count 8 t:FDRE +select -assert-count 8 t:RAM32X1D +select -assert-none t:BUFG t:FDRE t:RAM32X1D %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w1r +select -assert-count 1 t:BUFG +select -assert-count 8 t:FDRE +select -assert-count 8 t:RAM64X1D +select -assert-none t:BUFG t:FDRE t:RAM64X1D %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w3r +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w3r +select -assert-count 1 t:BUFG +select -assert-count 24 t:FDRE +select -assert-count 4 t:RAM32M +select -assert-none t:BUFG t:FDRE t:RAM32M %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w3r -chparam A_WIDTH 6 +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w3r +select -assert-count 1 t:BUFG +select -assert-count 24 t:FDRE +select -assert-count 8 t:RAM64M +select -assert-none t:BUFG t:FDRE t:RAM64M %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r -chparam A_WIDTH 5 -chparam D_WIDTH 6 +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w1r +select -assert-count 1 t:BUFG +select -assert-count 6 t:FDRE +select -assert-count 1 t:RAM32M +select -assert-none t:BUFG t:FDRE t:RAM32M %% t:* %D + + +design -reset +read_verilog ../common/lutram.v +hierarchy -top lutram_1w1r -chparam A_WIDTH 6 -chparam D_WIDTH 6 +proc +memory -nomap +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad +memory +opt -full + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter + +design -load postopt +cd lutram_1w1r +select -assert-count 1 t:BUFG +select -assert-count 6 t:FDRE +select -assert-count 2 t:RAM64M +select -assert-none t:BUFG t:FDRE t:RAM64M %% t:* %D diff --git a/tests/arch/xilinx/macc.sh b/tests/arch/xilinx/macc.sh index 154a29848..58b97b646 100644 --- a/tests/arch/xilinx/macc.sh +++ b/tests/arch/xilinx/macc.sh @@ -1,3 +1,6 @@ ../../../yosys -qp "synth_xilinx -top macc2; rename -top macc2_uut" -o macc_uut.v macc.v iverilog -o test_macc macc_tb.v macc_uut.v macc.v ../../../techlibs/xilinx/cells_sim.v vvp -N ./test_macc +../../../yosys -qp "synth_xilinx -family xc6s -top macc2; rename -top macc2_uut" -o macc_uut.v macc.v +iverilog -o test_macc macc_tb.v macc_uut.v macc.v ../../../techlibs/xilinx/cells_sim.v +vvp -N ./test_macc diff --git a/tests/arch/xilinx/macc.ys b/tests/arch/xilinx/macc.ys index 6e884b35a..bf2b36320 100644 --- a/tests/arch/xilinx/macc.ys +++ b/tests/arch/xilinx/macc.ys @@ -3,8 +3,8 @@ design -save read hierarchy -top macc proc -#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx ### TODO -equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx +#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad ### TODO +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -verify -prove-asserts -seq 10 -show-inputs -show-outputs miter design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) @@ -17,15 +17,16 @@ select -assert-none t:BUFG t:FDRE t:DSP48E1 %% t:* %D design -load read hierarchy -top macc2 proc -#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx ### TODO -equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx +#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad ### TODO +equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -noiopad miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -verify -prove-asserts -seq 10 -show-inputs -show-outputs miter design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd macc2 # Constrain all select calls below inside the top module + select -assert-count 1 t:BUFG select -assert-count 1 t:DSP48E1 select -assert-count 1 t:FDRE select -assert-count 1 t:LUT2 -select -assert-count 41 t:LUT3 +select -assert-count 40 t:LUT3 select -assert-none t:BUFG t:DSP48E1 t:FDRE t:LUT2 t:LUT3 %% t:* %D diff --git a/tests/arch/xilinx/memory.ys b/tests/arch/xilinx/memory.ys deleted file mode 100644 index da1ed0e49..000000000 --- a/tests/arch/xilinx/memory.ys +++ /dev/null @@ -1,17 +0,0 @@ -read_verilog ../common/memory.v -hierarchy -top top -proc -memory -nomap -equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx -memory -opt -full - -miter -equiv -flatten -make_assert -make_outputs gold gate miter -sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter - -design -load postopt -cd top -select -assert-count 1 t:BUFG -select -assert-count 8 t:FDRE -select -assert-count 8 t:RAM64X1D -select -assert-none t:BUFG t:FDRE t:RAM64X1D %% t:* %D diff --git a/tests/arch/xilinx/mul.ys b/tests/arch/xilinx/mul.ys index d76814966..490846ff1 100644 --- a/tests/arch/xilinx/mul.ys +++ b/tests/arch/xilinx/mul.ys @@ -1,9 +1,21 @@ read_verilog ../common/mul.v hierarchy -top top proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module select -assert-count 1 t:DSP48E1 select -assert-none t:DSP48E1 %% t:* %D + +design -reset + +read_verilog ../common/mul.v +hierarchy -top top +proc +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -family xc6s -noiopad # equivalency check +design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) +cd top # Constrain all select calls below inside the top module + +select -assert-count 1 t:DSP48A1 +select -assert-none t:DSP48A1 %% t:* %D diff --git a/tests/arch/xilinx/mul_unsigned.ys b/tests/arch/xilinx/mul_unsigned.ys index 62495b90c..980263cbd 100644 --- a/tests/arch/xilinx/mul_unsigned.ys +++ b/tests/arch/xilinx/mul_unsigned.ys @@ -2,10 +2,24 @@ read_verilog mul_unsigned.v hierarchy -top mul_unsigned proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mul_unsigned # Constrain all select calls below inside the top module select -assert-count 1 t:BUFG select -assert-count 1 t:DSP48E1 select -assert-count 30 t:FDRE select -assert-none t:DSP48E1 t:FDRE t:BUFG %% t:* %D + +design -reset + +read_verilog mul_unsigned.v +hierarchy -top mul_unsigned +proc + +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -family xc6s -noiopad # equivalency check +design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) +cd mul_unsigned # Constrain all select calls below inside the top module +select -assert-count 1 t:BUFG +select -assert-count 1 t:DSP48A1 +select -assert-count 30 t:FDRE +select -assert-none t:DSP48A1 t:FDRE t:BUFG %% t:* %D diff --git a/tests/arch/xilinx/mux.ys b/tests/arch/xilinx/mux.ys index 821d0fab7..99817738d 100644 --- a/tests/arch/xilinx/mux.ys +++ b/tests/arch/xilinx/mux.ys @@ -3,7 +3,7 @@ design -save read hierarchy -top mux2 proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mux2 # Constrain all select calls below inside the top module select -assert-count 1 t:LUT3 @@ -14,7 +14,7 @@ select -assert-none t:LUT3 %% t:* %D design -load read hierarchy -top mux4 proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mux4 # Constrain all select calls below inside the top module select -assert-count 1 t:LUT6 @@ -25,7 +25,7 @@ select -assert-none t:LUT6 %% t:* %D design -load read hierarchy -top mux8 proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mux8 # Constrain all select calls below inside the top module select -assert-count 1 t:LUT3 @@ -37,9 +37,11 @@ select -assert-none t:LUT3 t:LUT6 %% t:* %D design -load read hierarchy -top mux16 proc -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd mux16 # Constrain all select calls below inside the top module -select -assert-count 5 t:LUT6 +select -assert-min 5 t:LUT6 +select -assert-max 7 t:LUT6 +select -assert-max 2 t:MUXF7 -select -assert-none t:LUT6 %% t:* %D +select -assert-none t:LUT6 t:MUXF7 %% t:* %D diff --git a/tests/arch/xilinx/shifter.ys b/tests/arch/xilinx/shifter.ys index 455437f18..3652319a0 100644 --- a/tests/arch/xilinx/shifter.ys +++ b/tests/arch/xilinx/shifter.ys @@ -2,7 +2,7 @@ read_verilog ../common/shifter.v hierarchy -top top proc flatten -equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check +equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx -noiopad # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd top # Constrain all select calls below inside the top module diff --git a/tests/arch/xilinx/tribuf.ys b/tests/arch/xilinx/tribuf.ys index 4697703ca..eaccab126 100644 --- a/tests/arch/xilinx/tribuf.ys +++ b/tests/arch/xilinx/tribuf.ys @@ -7,6 +7,7 @@ synth equiv_opt -assert -map +/xilinx/cells_sim.v -map +/simcells.v synth_xilinx # equivalency check design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design) cd tristate # Constrain all select calls below inside the top module -# TODO :: Tristate logic not yet supported; see https://github.com/YosysHQ/yosys/issues/1225 -select -assert-count 1 t:$_TBUF_ -select -assert-none t:$_TBUF_ %% t:* %D +select -assert-count 2 t:IBUF +select -assert-count 1 t:INV +select -assert-count 1 t:OBUFT +select -assert-none t:IBUF t:INV t:OBUFT %% t:* %D diff --git a/tests/arch/xilinx/xilinx_dffopt.ys b/tests/arch/xilinx/xilinx_dffopt.ys new file mode 100644 index 000000000..dc036acfd --- /dev/null +++ b/tests/arch/xilinx/xilinx_dffopt.ys @@ -0,0 +1,216 @@ +read_verilog << EOT + +// FDRE, mergeable CE and R. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); +LUT2 #(.INIT(4'h6)) lut2 (.I0(i[3]), .I1(i[4]), .O(tmp[2])); + +FDRE ff (.D(tmp[0]), .CE(tmp[1]), .R(tmp[2]), .Q(o[0])); + +endmodule + +EOT + +design -save t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +select -assert-count 1 t:FDRE +select -assert-count 1 t:LUT6 +select -assert-count 3 t:LUT2 +select -assert-none t:FDRE t:LUT6 t:LUT2 %% t:* %D + +design -load t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt -lut4 +design -load postopt +clean + +select -assert-count 1 t:FDRE +select -assert-count 1 t:LUT4 +select -assert-count 3 t:LUT2 +select -assert-none t:FDRE t:LUT4 t:LUT2 %% t:* %D + +design -reset + + +read_verilog << EOT + +// FDSE, mergeable CE and S, inversions. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); +LUT2 #(.INIT(4'h6)) lut2 (.I0(i[3]), .I1(i[4]), .O(tmp[2])); + +FDSE #(.IS_D_INVERTED(1'b1), .IS_S_INVERTED(1'b1)) ff (.D(tmp[0]), .CE(tmp[1]), .S(tmp[2]), .Q(o[0])); + +endmodule + +EOT + +design -save t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +select -assert-count 1 t:FDSE +select -assert-count 1 t:LUT6 +select -assert-count 3 t:LUT2 +select -assert-none t:FDSE t:LUT6 t:LUT2 %% t:* %D + +design -load t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt -lut4 +design -load postopt +clean + +select -assert-count 1 t:FDSE +select -assert-count 1 t:LUT4 +select -assert-count 3 t:LUT2 +select -assert-none t:FDSE t:LUT4 t:LUT2 %% t:* %D + +design -reset + + +read_verilog << EOT + +// FDCE, mergeable CE. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); +LUT2 #(.INIT(4'h6)) lut2 (.I0(i[3]), .I1(i[4]), .O(tmp[2])); + +FDCE ff (.D(tmp[0]), .CE(tmp[1]), .CLR(tmp[2]), .Q(o[0])); + +endmodule + +EOT + +design -save t0 + +equiv_opt -async2sync -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +select -assert-count 1 t:FDCE +select -assert-count 1 t:LUT4 +select -assert-count 3 t:LUT2 +select -assert-none t:FDCE t:LUT4 t:LUT2 %% t:* %D + +design -reset + + +read_verilog << EOT + +// FDSE, mergeable CE and S, but CE only not worth it. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); + +FDSE ff (.D(tmp[0]), .CE(i[7]), .S(tmp[1]), .Q(o[0])); + +endmodule + +EOT + +design -save t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +select -assert-count 1 t:FDSE +select -assert-count 1 t:LUT5 +select -assert-count 2 t:LUT2 +select -assert-none t:FDSE t:LUT5 t:LUT2 %% t:* %D + +design -load t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt -lut4 +design -load postopt +clean + +select -assert-count 1 t:FDSE +select -assert-count 2 t:LUT2 +select -assert-none t:FDSE t:LUT2 %% t:* %D + +design -reset + + +read_verilog << EOT + +// FDRSE, mergeable CE, S, R. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); +LUT2 #(.INIT(4'h8)) lut2 (.I0(i[2]), .I1(i[0]), .O(tmp[2])); +LUT2 #(.INIT(4'h6)) lut3 (.I0(i[3]), .I1(i[4]), .O(tmp[3])); + +FDRSE ff (.D(tmp[0]), .CE(tmp[1]), .S(tmp[2]), .R(tmp[3]), .Q(o[0])); + +endmodule + +EOT + +design -save t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +select -assert-count 1 t:FDRSE +select -assert-count 1 t:LUT6 +select -assert-count 4 t:LUT2 +select -assert-none t:FDRSE t:LUT6 t:LUT2 %% t:* %D + +design -load t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt -lut4 +design -load postopt +clean + +select -assert-count 1 t:FDRSE +select -assert-count 1 t:LUT4 +select -assert-count 4 t:LUT2 +select -assert-none t:FDRSE t:LUT4 t:LUT2 %% t:* %D + +design -reset diff --git a/tests/arch/xilinx/xilinx_dffopt_blacklist.txt b/tests/arch/xilinx/xilinx_dffopt_blacklist.txt new file mode 100644 index 000000000..6a31a0cd3 --- /dev/null +++ b/tests/arch/xilinx/xilinx_dffopt_blacklist.txt @@ -0,0 +1,13 @@ +lut0 +lut1 +lut2 +lut3 +ff +ff.D +ff.R +ff.S +ff.CE +ff.d +ff.r +ff.s +ff.ce diff --git a/tests/simple/mem_arst.v b/tests/simple/mem_arst.v index 9bd38fcb3..88d0553b9 100644 --- a/tests/simple/mem_arst.v +++ b/tests/simple/mem_arst.v @@ -7,11 +7,9 @@ module MyMem #( input Clk_i, input [AddrWidth-1:0] Addr_i, input [DataWidth-1:0] Data_i, - output [DataWidth-1:0] Data_o, + output reg [DataWidth-1:0] Data_o, input WR_i); - reg [DataWidth-1:0] Data_o; - localparam Size = 2**AddrWidth; (* mem2reg *) diff --git a/tests/techmap/iopadmap.ys b/tests/techmap/iopadmap.ys index f4345e906..c058d1607 100644 --- a/tests/techmap/iopadmap.ys +++ b/tests/techmap/iopadmap.ys @@ -28,6 +28,20 @@ assign io = oe ? i : 1'bz; assign o2 = io; assign o3 = ~io; endmodule + +module f(output o, o2); +assign o = 1'bz; +endmodule + +module g(inout io, output o); +assign o = io; +endmodule + +module h(inout io, output o, input i); +assign io = i; +assign o = io; +endmodule + EOT opt_clean @@ -97,3 +111,12 @@ select -assert-count 1 @oeb %co %co @iob %i select -assert-count 1 @iob %co %co @o2b %i select -assert-count 1 @iob %co %co t:$_NOT_ %i select -assert-count 1 @o3b %ci %ci t:$_NOT_ %i + +select -assert-count 2 f/t:obuft + +select -assert-count 1 g/t:obuf +select -assert-count 1 g/t:iobuf + +select -assert-count 1 h/t:ibuf +select -assert-count 1 h/t:iobuf +select -assert-count 1 h/t:obuf diff --git a/tests/various/bug1531.ys b/tests/various/bug1531.ys new file mode 100644 index 000000000..542223030 --- /dev/null +++ b/tests/various/bug1531.ys @@ -0,0 +1,34 @@ +read_verilog <<EOT +module top (y, clk, w); + output reg y = 1'b0; + input clk, w; + reg [1:0] i = 2'b00; + always @(posedge clk) + // If the constant below is set to 2'b00, the correct output is generated. + // vvvv + for (i = 1'b0; i < 2'b01; i = i + 2'b01) + y <= w || i[1:1]; +endmodule +EOT + +synth +design -stash gate + +read_verilog <<EOT +module gold (y, clk, w); + input clk; + wire [1:0] i; + input w; + output y; + reg y = 1'h0; + always @(posedge clk) + y <= w; + assign i = 2'h0; +endmodule +EOT +proc gold + +design -import gate -as gate + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -seq 10 -verify -prove-asserts -show-ports miter diff --git a/tests/various/scratchpad.ys b/tests/various/scratchpad.ys new file mode 100644 index 000000000..dc94081ea --- /dev/null +++ b/tests/various/scratchpad.ys @@ -0,0 +1,5 @@ +scratchpad -set foo "bar baz" +scratchpad -copy foo oof +scratchpad -unset foo +scratchpad -assert oof "bar baz" +scratchpad -assert-unset foo |