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author | Eddie Hung <eddie@fpgeh.com> | 2020-01-02 12:36:54 -0800 |
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committer | Eddie Hung <eddie@fpgeh.com> | 2020-01-02 12:36:54 -0800 |
commit | 8e507bd80785db9fa6723eada4214a5a06516cae (patch) | |
tree | 3db8b18a27ac6a9a4b88c0f91ef27bfa77037b09 /techlibs/xilinx/synth_xilinx.cc | |
parent | 0e95756e960f809aaa4596ba44330e7bd6fd0309 (diff) | |
download | yosys-8e507bd80785db9fa6723eada4214a5a06516cae.tar.gz yosys-8e507bd80785db9fa6723eada4214a5a06516cae.tar.bz2 yosys-8e507bd80785db9fa6723eada4214a5a06516cae.zip |
abc9 -keepff -> -dff; refactor dff operations
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
-rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 10aa7be5f..af9f21756 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -108,7 +108,7 @@ struct SynthXilinxPass : public ScriptPass log(" flatten design before synthesis\n"); log("\n"); log(" -dff\n"); - log(" enable sequential synthesis with 'abc9'\n"); + log(" run 'abc9' with -dff option\n"); log("\n"); log(" -retime\n"); log(" run 'abc' with -dff option\n"); @@ -559,8 +559,8 @@ struct SynthXilinxPass : public ScriptPass abc9_opts += " -lut +/xilinx/abc9_xc7_nowide.lut"; else abc9_opts += " -lut +/xilinx/abc9_xc7.lut"; - if (!dff_mode) - abc9_opts += " -keepff"; + if (dff_mode) + abc9_opts += " -dff"; run("abc9" + abc9_opts); run("techmap -map +/xilinx/abc9_unmap.v"); } |