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authorEddie Hung <eddie@fpgeh.com>2020-01-02 15:14:12 -0800
committerEddie Hung <eddie@fpgeh.com>2020-01-02 15:14:12 -0800
commit5f970863023881caaa3a64120a0f767386d35d62 (patch)
treeb373796abb0a02a4935062fe1abcc86cf3c7ff24 /techlibs/ice40/synth_ice40.cc
parentd597e3e979d534d81c9c666d4b8eb95ed1bb4aa6 (diff)
parentf8d5920a7e61f78873b7bf49dd7e8f3a83f7adf3 (diff)
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Merge remote-tracking branch 'origin/master' into eddie/abc9_refactor
Diffstat (limited to 'techlibs/ice40/synth_ice40.cc')
-rw-r--r--techlibs/ice40/synth_ice40.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index ed7a16c08..463c2063a 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -65,7 +65,7 @@ struct SynthIce40Pass : public ScriptPass
log(" do not flatten design before synthesis\n");
log("\n");
log(" -retime\n");
- log(" run 'abc' with -dff option\n");
+ log(" run 'abc' with '-dff -D 1' options\n");
log("\n");
log(" -nocarry\n");
log(" do not use SB_CARRY cells in output netlist\n");
@@ -316,7 +316,7 @@ struct SynthIce40Pass : public ScriptPass
run("techmap -map +/techmap.v -map +/ice40/arith_map.v");
}
if (retime || help_mode)
- run(abc + " -dff", "(only if -retime)");
+ run(abc + " -dff -D 1", "(only if -retime)");
run("ice40_opt");
}