diff options
Diffstat (limited to 'passes/techmap/abc.cc')
| -rw-r--r-- | passes/techmap/abc.cc | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index 7ddc7a168..b9a1b65de 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -32,11 +32,13 @@ #define ABC_COMMAND_LIB "strash; scorr; ifraig; retime -o {D}; strash; dch -f; map {D}" #define ABC_COMMAND_CTR "strash; scorr; ifraig; retime -o {D}; strash; dch -f; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" #define ABC_COMMAND_LUT "strash; scorr; ifraig; retime -o; strash; dch -f; if; mfs" +#define ABC_COMMAND_SOP "strash; scorr; ifraig; retime -o; strash; dch -f; cover" #define ABC_COMMAND_DFL "strash; scorr; ifraig; retime -o; strash; dch -f; map" #define ABC_FAST_COMMAND_LIB "retime -o {D}; map {D}" #define ABC_FAST_COMMAND_CTR "retime -o {D}; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" #define ABC_FAST_COMMAND_LUT "retime -o; if" +#define ABC_FAST_COMMAND_SOP "retime -o; cover" #define ABC_FAST_COMMAND_DFL "retime -o; map" #include "kernel/register.h" @@ -593,7 +595,7 @@ struct abc_output_filter void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::string script_file, std::string exe_file, std::string liberty_file, std::string constr_file, bool cleanup, vector<int> lut_costs, bool dff_mode, std::string clk_str, - bool keepff, std::string delay_target, bool fast_mode, const std::vector<RTLIL::Cell*> &cells, bool show_tempdir) + bool keepff, std::string delay_target, bool fast_mode, const std::vector<RTLIL::Cell*> &cells, bool show_tempdir, bool sop_mode) { module = current_module; map_autoidx = autoidx++; @@ -652,6 +654,8 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin abc_script += "; lutpack"; } else if (!liberty_file.empty()) abc_script += constr_file.empty() ? (fast_mode ? ABC_FAST_COMMAND_LIB : ABC_COMMAND_LIB) : (fast_mode ? ABC_FAST_COMMAND_CTR : ABC_COMMAND_CTR); + else if (sop_mode) + abc_script += fast_mode ? ABC_FAST_COMMAND_SOP : ABC_COMMAND_SOP; else abc_script += fast_mode ? ABC_FAST_COMMAND_DFL : ABC_COMMAND_DFL; @@ -898,9 +902,9 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin if (ifs.fail()) log_error("Can't open ABC output file `%s'.\n", buffer.c_str()); - bool builtin_lib = liberty_file.empty() && script_file.empty() && lut_costs.empty(); + bool builtin_lib = liberty_file.empty() && script_file.empty() && lut_costs.empty() && !sop_mode; RTLIL::Design *mapped_design = new RTLIL::Design; - parse_blif(mapped_design, ifs, builtin_lib ? "\\DFF" : "\\_dff_"); + parse_blif(mapped_design, ifs, builtin_lib ? "\\DFF" : "\\_dff_", false, sop_mode); ifs.close(); @@ -1202,6 +1206,9 @@ struct AbcPass : public Pass { log(" for -lut/-luts (different LUT sizes):\n"); log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT).c_str()); log("\n"); + log(" for -sop:\n"); + log("%s\n", fold_abc_cmd(ABC_COMMAND_SOP).c_str()); + log("\n"); log(" otherwise:\n"); log("%s\n", fold_abc_cmd(ABC_COMMAND_DFL).c_str()); log("\n"); @@ -1218,6 +1225,9 @@ struct AbcPass : public Pass { log(" for -lut/-luts:\n"); log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LUT).c_str()); log("\n"); + log(" for -sop:\n"); + log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_SOP).c_str()); + log("\n"); log(" otherwise:\n"); log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_DFL).c_str()); log("\n"); @@ -1253,6 +1263,9 @@ struct AbcPass : public Pass { log(" generate netlist using luts. Use the specified costs for luts with 1,\n"); log(" 2, 3, .. inputs.\n"); log("\n"); + log(" -sop\n"); + log(" map to sum-of-product cells\n"); + log("\n"); // log(" -mux4, -mux8, -mux16\n"); // log(" try to extract 4-input, 8-input, and/or 16-input muxes\n"); // log(" (ignored when used with -liberty or -lut)\n"); @@ -1309,7 +1322,7 @@ struct AbcPass : public Pass { #endif std::string script_file, liberty_file, constr_file, clk_str, delay_target; bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true; - bool show_tempdir = false; + bool show_tempdir = false, sop_mode = false; vector<int> lut_costs; markgroups = false; @@ -1393,6 +1406,10 @@ struct AbcPass : public Pass { } continue; } + if (arg == "-sop") { + sop_mode = true; + continue; + } if (arg == "-mux4") { map_mux4 = true; continue; @@ -1466,7 +1483,7 @@ struct AbcPass : public Pass { if (mod->processes.size() > 0) log("Skipping module %s as it contains processes.\n", log_id(mod)); else if (!dff_mode || !clk_str.empty()) - abc_module(design, mod, script_file, exe_file, liberty_file, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff, delay_target, fast_mode, mod->selected_cells(), show_tempdir); + abc_module(design, mod, script_file, exe_file, liberty_file, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff, delay_target, fast_mode, mod->selected_cells(), show_tempdir, sop_mode); else { assign_map.set(mod); @@ -1611,7 +1628,7 @@ struct AbcPass : public Pass { en_polarity = std::get<2>(it.first); en_sig = assign_map(std::get<3>(it.first)); abc_module(design, mod, script_file, exe_file, liberty_file, constr_file, cleanup, lut_costs, - !clk_sig.empty(), "$", keepff, delay_target, fast_mode, it.second, show_tempdir); + !clk_sig.empty(), "$", keepff, delay_target, fast_mode, it.second, show_tempdir, sop_mode); assign_map.set(mod); } } |