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-rw-r--r--techlibs/gowin/synth_gowin.cc31
1 files changed, 17 insertions, 14 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index 1e82e1ed6..987d31840 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -69,9 +69,9 @@ struct SynthGowinPass : public ScriptPass
log("\n");
log(" -noiopads\n");
log(" do not emit IOB at top level ports\n");
- //log("\n");
- //log(" -abc9\n");
- //log(" use new ABC9 flow (EXPERIMENTAL)\n");
+ log("\n");
+ log(" -abc9\n");
+ log(" use new ABC9 flow (EXPERIMENTAL)\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
@@ -144,10 +144,10 @@ struct SynthGowinPass : public ScriptPass
nowidelut = true;
continue;
}
- //if (args[argidx] == "-abc9") {
- // abc9 = true;
- // continue;
- //}
+ if (args[argidx] == "-abc9") {
+ abc9 = true;
+ continue;
+ }
if (args[argidx] == "-noiopads") {
noiopads = true;
continue;
@@ -171,7 +171,7 @@ struct SynthGowinPass : public ScriptPass
{
if (check_label("begin"))
{
- run("read_verilog -lib +/gowin/cells_sim.v");
+ run("read_verilog -specify -lib +/gowin/cells_sim.v");
run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str()));
}
@@ -230,13 +230,15 @@ struct SynthGowinPass : public ScriptPass
if (check_label("map_luts"))
{
- /*if (nowidelut && abc9) {
- run("abc9 -lut 4");
- } else*/ if (nowidelut && !abc9) {
+ if (nowidelut && abc9) {
+ run("read_verilog -icells -lib -specify +/abc9_model.v");
+ run("abc9 -maxlut 4 -W 500");
+ } else if (nowidelut && !abc9) {
run("abc -lut 4");
- } else /*if (!nowidelut && abc9) {
- run("abc9 -lut 4:8");
- } else*/ if (!nowidelut && !abc9) {
+ } else if (!nowidelut && abc9) {
+ run("read_verilog -icells -lib -specify +/abc9_model.v");
+ run("abc9 -maxlut 8 -W 500");
+ } else if (!nowidelut && !abc9) {
run("abc -lut 4:8");
}
run("clean");
@@ -252,6 +254,7 @@ struct SynthGowinPass : public ScriptPass
run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O "
"-toutpad TBUF OEN:I:O -tinoutpad IOBUF OEN:O:I:IO", "(unless -noiopads)");
run("clean");
+ run("autoname");
}
if (check_label("check"))