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| author | David Shah <dave@ds0.me> | 2021-01-23 22:24:31 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2021-01-23 22:24:31 +0000 |
| commit | 09311b6581e5f1b4282b20b987919d1514e62073 (patch) | |
| tree | 27802495ebfa590b9380ac853af8b7d440631c8b /frontends/ast | |
| parent | 54294957ed15d954c69c2722028209077cf91cfe (diff) | |
| download | yosys-09311b6581e5f1b4282b20b987919d1514e62073.tar.gz yosys-09311b6581e5f1b4282b20b987919d1514e62073.tar.bz2 yosys-09311b6581e5f1b4282b20b987919d1514e62073.zip | |
dpi: Support for chandle type
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'frontends/ast')
| -rw-r--r-- | frontends/ast/dpicall.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/frontends/ast/dpicall.cc b/frontends/ast/dpicall.cc index e241142d3..948c9083c 100644 --- a/frontends/ast/dpicall.cc +++ b/frontends/ast/dpicall.cc @@ -67,7 +67,7 @@ static ffi_fptr resolve_fn (std::string symbol_name) AST::AstNode *AST::dpi_call(const std::string &rtype, const std::string &fname, const std::vector<std::string> &argtypes, const std::vector<AstNode*> &args) { AST::AstNode *newNode = nullptr; - union { double f64; float f32; int32_t i32; } value_store [args.size() + 1]; + union { double f64; float f32; int32_t i32; void *ptr; } value_store [args.size() + 1]; ffi_type *types [args.size() + 1]; void *values [args.size() + 1]; ffi_cif cif; @@ -92,6 +92,11 @@ AST::AstNode *AST::dpi_call(const std::string &rtype, const std::string &fname, value_store[i].i32 = args[i]->asInt(args[i]->is_signed); values[i] = &value_store[i].i32; types[i] = &ffi_type_sint32; + } else if (argtypes[i] == "chandle") { + log(" arg %d (%s): %llx\n", i, argtypes[i].c_str(), (unsigned long long)args[i]->asInt(false)); + value_store[i].ptr = (void *)args[i]->asInt(args[i]->is_signed); + values[i] = &value_store[i].ptr; + types[i] = &ffi_type_pointer; } else { log_error("invalid argtype '%s' for argument %d.\n", argtypes[i].c_str(), i); } @@ -106,6 +111,9 @@ AST::AstNode *AST::dpi_call(const std::string &rtype, const std::string &fname, } else if (rtype == "real") { types[args.size()] = &ffi_type_double; values[args.size()] = &value_store[args.size()].f64; + } else if (rtype == "chandle") { + types[args.size()] = &ffi_type_pointer; + values[args.size()] = &value_store[args.size()].ptr; } else { log_error("invalid rtype '%s'.\n", rtype.c_str()); } @@ -123,6 +131,13 @@ AST::AstNode *AST::dpi_call(const std::string &rtype, const std::string &fname, newNode = new AstNode(AST_REALVALUE); newNode->realvalue = value_store[args.size()].f32; log(" return realvalue: %g\n", newNode->asReal(true)); + } else if (rtype == "chandle") { + uint64_t rawval = (uint64_t)value_store[args.size()].ptr; + std::vector<RTLIL::State> bits(64); + for (int i = 0; i < 64; i++) + bits.at(i) = (rawval & (1ULL << i)) ? RTLIL::State::S1 : RTLIL::State::S0; + newNode = AstNode::mkconst_bits(bits, false); + log(" return chandle: %llx\n", (unsigned long long)newNode->asInt(false)); } else { newNode = AstNode::mkconst_int(value_store[args.size()].i32, false); log(" return integer: %lld\n", (long long)newNode->asInt(true)); |