From: Pepijn de Vos <pepijndevos@gmail.com>
Date: Mon, 18 Nov 2019 13:25:46 +0000 (+0100)
Subject: add help for nowidelut and abc9 options
X-Git-Tag: working-ls180~956^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dd8c7e1ddda152e9c06d4b950564eb4aa1051c98;p=yosys.git

add help for nowidelut and abc9 options
---

diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index a70ff93bb..bb6d44e00 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -64,6 +64,12 @@ struct SynthGowinPass : public ScriptPass
 		log("    -retime\n");
 		log("        run 'abc' with -dff option\n");
 		log("\n");
+		log("    -nowidelut\n");
+		log("        do not use muxes to implement LUTs larger than LUT4s\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");
 		help_script();
@@ -173,7 +179,7 @@ struct SynthGowinPass : public ScriptPass
 		{
 			run("synth -run coarse");
 		}
-		
+
 		if (!nobram && check_label("bram", "(skip if -nobram)"))
 		{
 			run("memory_bram -rules +/gowin/bram.txt");