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| author | Tristan Gingold <tgingold@free.fr> | 2019-07-31 06:42:38 +0200 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2019-07-31 06:42:38 +0200 |
| commit | 6b23de0fc8afb5e57c876b96f6e32e746202033c (patch) | |
| tree | ea168918b8090cc6d25325ccb17195f8049ec336 /ghdl/ghdl.cc | |
| parent | e3bf4a0f39b6a73e0089e5217716a6f1cd7537d9 (diff) | |
| download | ghdl-yosys-plugin-6b23de0fc8afb5e57c876b96f6e32e746202033c.tar.gz ghdl-yosys-plugin-6b23de0fc8afb5e57c876b96f6e32e746202033c.tar.bz2 ghdl-yosys-plugin-6b23de0fc8afb5e57c876b96f6e32e746202033c.zip | |
Remove to be deprecated const gates, add concatn, reformat.
Diffstat (limited to 'ghdl/ghdl.cc')
| -rw-r--r-- | ghdl/ghdl.cc | 85 |
1 files changed, 39 insertions, 46 deletions
diff --git a/ghdl/ghdl.cc b/ghdl/ghdl.cc index 665781d..b2a2cf7 100644 --- a/ghdl/ghdl.cc +++ b/ghdl/ghdl.cc @@ -75,37 +75,31 @@ static RTLIL::SigSpec get_src(std::vector<RTLIL::Wire *> &net_map, Net n) res.extend_u0(get_width(n), false); return res; } - case Id_Const_UB32: + case Id_Const_UB32: return SigSpec(get_param_uns32(inst, 0), get_width(n)); - //case Id_Const_SB32: - //case Id_Const_UB64: - //case Id_Const_SB64: - //case Id_Const_UB128: - //case Id_Const_SB128: - case Id_Const_UL32: - { - std::vector<RTLIL::State> bits(get_width(n)); - unsigned int val01 = get_param_uns32(inst, 0); - unsigned int valzx = get_param_uns32(inst, 1); - for (unsigned int i = 0; i < get_width(n); i++) { - switch(((val01 >> i)&1)+((valzx >> i)&1)*2) { - case 0: - bits[i] = RTLIL::State::S0; - break; - case 1: - bits[i] = RTLIL::State::S1; - break; - case 2: - bits[i] = RTLIL::State::Sz; - break; - case 3: - bits[i] = RTLIL::State::Sx; - break; - } - } - return RTLIL::SigSpec(RTLIL::Const(bits)); - } - //case Id_Const_SL32: + case Id_Const_UL32: + { + std::vector<RTLIL::State> bits(get_width(n)); + unsigned int val01 = get_param_uns32(inst, 0); + unsigned int valzx = get_param_uns32(inst, 1); + for (unsigned int i = 0; i < get_width(n); i++) { + switch(((val01 >> i)&1)+((valzx >> i)&1)*2) { + case 0: + bits[i] = RTLIL::State::S0; + break; + case 1: + bits[i] = RTLIL::State::S1; + break; + case 2: + bits[i] = RTLIL::State::Sz; + break; + case 3: + bits[i] = RTLIL::State::Sx; + break; + } + } + return RTLIL::SigSpec(RTLIL::Const(bits)); + } case Id_Extract: { RTLIL::SigSpec res = IN(0); @@ -138,6 +132,16 @@ static RTLIL::SigSpec get_src(std::vector<RTLIL::Wire *> &net_map, Net n) res.append(IN(i - 1)); return res; } + case Id_Concatn: + { + RTLIL::SigSpec res; + unsigned nbr_in = get_param_uns32(inst, 0); + // ConcatN means { I0; I1; .. IN}, but append() adds + // bits to the MSB side. + for (unsigned i = nbr_in; i > 0; i--) + res.append(IN(i - 1)); + return res; + } default: log_cmd_error("wire not found for %s\n", to_str(get_module_name(get_module(inst))).c_str()); break; @@ -287,20 +291,15 @@ static void import_module(RTLIL::Design *design, GhdlSynth::Module m) case Id_Isignal: case Id_Output: case Id_Port: - case Id_Const_UB32: - case Id_Const_SB32: - case Id_Const_UB64: - case Id_Const_SB64: - case Id_Const_UB128: - case Id_Const_SB128: - case Id_Const_UL32: - case Id_Const_SL32: + case Id_Const_UB32: + case Id_Const_UL32: case Id_Uextend: case Id_Extract: case Id_Insert: case Id_Concat2: case Id_Concat3: case Id_Concat4: + case Id_Concatn: // Skip: these won't create cells. break; case Id_Edge: @@ -445,14 +444,8 @@ static void import_module(RTLIL::Design *design, GhdlSynth::Module m) case Id_Assume: module->addAssume(to_str(iname), IN(0), State::S1); break; - case Id_Const_UB32: - case Id_Const_SB32: - case Id_Const_UB64: - case Id_Const_SB64: - case Id_Const_UB128: - case Id_Const_SB128: - case Id_Const_UL32: - case Id_Const_SL32: + case Id_Const_UB32: + case Id_Const_UL32: case Id_Uextend: case Id_Extract: case Id_Insert: |