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| author | Marcelina Kościelnicka <mwk@0x04.net> | 2022-06-02 17:15:28 +0200 |
|---|---|---|
| committer | Marcelina Kościelnicka <mwk@0x04.net> | 2022-06-02 23:16:12 +0200 |
| commit | 71dfbf33b292b6920ff1bab308c0c10b737bf763 (patch) | |
| tree | 4e844cbe19ede678ee1efd0cf5a1581f2f9b0d23 /techlibs/gowin/synth_gowin.cc | |
| parent | 3a0aa9c6630c6e2bb2ffb2d7f5b4e3921316ba48 (diff) | |
| download | yosys-71dfbf33b292b6920ff1bab308c0c10b737bf763.tar.gz yosys-71dfbf33b292b6920ff1bab308c0c10b737bf763.tar.bz2 yosys-71dfbf33b292b6920ff1bab308c0c10b737bf763.zip | |
Add -no-rw-check option to memory_dff + memory + synth_{ice40,ecp5,gowin}.
Diffstat (limited to 'techlibs/gowin/synth_gowin.cc')
| -rw-r--r-- | techlibs/gowin/synth_gowin.cc | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc index d900bd255..15a0c41e0 100644 --- a/techlibs/gowin/synth_gowin.cc +++ b/techlibs/gowin/synth_gowin.cc @@ -81,6 +81,11 @@ struct SynthGowinPass : public ScriptPass log(" -abc9\n"); log(" use new ABC9 flow (EXPERIMENTAL)\n"); log("\n"); + log(" -no-rw-check\n"); + log(" marks all recognized read ports as \"return don't-care value on\n"); + log(" read/write collision\" (same result as setting the no_rw_check\n"); + log(" attribute on all memories).\n"); + log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); help_script(); @@ -88,7 +93,7 @@ struct SynthGowinPass : public ScriptPass } string top_opt, vout_file, json_file; - bool retime, nobram, nolutram, flatten, nodffe, nowidelut, abc9, noiopads, noalu; + bool retime, nobram, nolutram, flatten, nodffe, nowidelut, abc9, noiopads, noalu, no_rw_check; void clear_flags() override { @@ -104,6 +109,7 @@ struct SynthGowinPass : public ScriptPass abc9 = false; noiopads = false; noalu = false; + no_rw_check = false; } void execute(std::vector<std::string> args, RTLIL::Design *design) override @@ -172,6 +178,10 @@ struct SynthGowinPass : public ScriptPass noiopads = true; continue; } + if (args[argidx] == "-no-rw-check") { + no_rw_check = true; + continue; + } break; } extra_args(args, argidx, design); @@ -189,6 +199,12 @@ struct SynthGowinPass : public ScriptPass void script() override { + std::string no_rw_check_opt = ""; + if (no_rw_check) + no_rw_check_opt = " -no-rw-check"; + if (help_mode) + no_rw_check_opt = " [-no-rw-check]"; + if (check_label("begin")) { run("read_verilog -specify -lib +/gowin/cells_sim.v"); @@ -205,7 +221,7 @@ struct SynthGowinPass : public ScriptPass if (check_label("coarse")) { - run("synth -run coarse"); + run("synth -run coarse" + no_rw_check_opt); } if (check_label("map_ram")) |