diff options
Diffstat (limited to 'techlibs/gowin/synth_gowin.cc')
| -rw-r--r-- | techlibs/gowin/synth_gowin.cc | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc index 087f6b8cf..d900bd255 100644 --- a/techlibs/gowin/synth_gowin.cc +++ b/techlibs/gowin/synth_gowin.cc @@ -126,8 +126,6 @@ struct SynthGowinPass : public ScriptPass json_file = args[++argidx]; nobram = true; nolutram = true; - nowidelut = true; - noalu = true; continue; } if (args[argidx] == "-run" && argidx+1 < args.size()) { @@ -210,17 +208,17 @@ struct SynthGowinPass : public ScriptPass run("synth -run coarse"); } - if (!nobram && check_label("map_bram", "(skip if -nobram)")) - { - run("memory_bram -rules +/gowin/brams.txt"); - run("techmap -map +/gowin/brams_map.v"); - } - - if (!nolutram && check_label("map_lutram", "(skip if -nolutram)")) + if (check_label("map_ram")) { - run("memory_bram -rules +/gowin/lutrams.txt"); - run("techmap -map +/gowin/lutrams_map.v"); - run("setundef -params -zero t:RAM16S4"); + std::string args = ""; + if (nobram) + args += " -no-auto-block"; + if (nolutram) + args += " -no-auto-distributed"; + if (help_mode) + args += " [-no-auto-block] [-no-auto-distributed]"; + run("memory_libmap -lib +/gowin/lutrams.txt -lib +/gowin/brams.txt" + args, "(-no-auto-block if -nobram, -no-auto-distributed if -nolutram)"); + run("techmap -map +/gowin/lutrams_map.v -map +/gowin/brams_map.v"); } if (check_label("map_ffram")) @@ -240,10 +238,9 @@ struct SynthGowinPass : public ScriptPass run("opt -fast"); if (retime || help_mode) run("abc -dff -D 1", "(only if -retime)"); - run("splitnets"); if (!noiopads || help_mode) run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O " - "-toutpad $__GW_TBUF OE:I:O -tinoutpad $__GW_IOBUF OE:O:I:IO", "(unless -noiopads)"); + "-toutpad TBUF ~OEN:I:O -tinoutpad IOBUF ~OEN:O:I:IO", "(unless -noiopads)"); } if (check_label("map_ffs")) @@ -280,6 +277,8 @@ struct SynthGowinPass : public ScriptPass run("opt_lut_ins -tech gowin"); run("setundef -undriven -params -zero"); run("hilomap -singleton -hicell VCC V -locell GND G"); + if (!vout_file.empty() || help_mode) // vendor output requires 1-bit wires + run("splitnets -ports", "(only if -vout used)"); run("clean"); run("autoname"); } @@ -295,7 +294,7 @@ struct SynthGowinPass : public ScriptPass if (check_label("vout")) { if (!vout_file.empty() || help_mode) - run(stringf("write_verilog -decimal -attr2comment -defparam -renameprefix gen %s", + run(stringf("write_verilog -simple-lhs -decimal -attr2comment -defparam -renameprefix gen %s", help_mode ? "<file-name>" : vout_file.c_str())); if (!json_file.empty() || help_mode) run(stringf("write_json %s", |