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| author | Marcelina Kościelnicka <mwk@0x04.net> | 2020-07-03 00:21:24 +0200 |
|---|---|---|
| committer | Marcelina Kościelnicka <mwk@0x04.net> | 2020-07-05 05:12:09 +0200 |
| commit | 1fc8c3a0d1b2e78c7c12123674732d516a0f5a9b (patch) | |
| tree | 2705d1c0c2b1d3be01c2db975e85b5fb17efe65c /techlibs/ice40/synth_ice40.cc | |
| parent | 01772dec8c13fb331df439319f4619b6292d6409 (diff) | |
| download | yosys-1fc8c3a0d1b2e78c7c12123674732d516a0f5a9b.tar.gz yosys-1fc8c3a0d1b2e78c7c12123674732d516a0f5a9b.tar.bz2 yosys-1fc8c3a0d1b2e78c7c12123674732d516a0f5a9b.zip | |
ice40: Use dfflegalize.
Diffstat (limited to 'techlibs/ice40/synth_ice40.cc')
| -rw-r--r-- | techlibs/ice40/synth_ice40.cc | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index 6464368eb..4ddb6ca70 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -358,15 +358,14 @@ struct SynthIce40Pass : public ScriptPass run("dff2dffe -direct-match $_DFF_*"); if (min_ce_use >= 0) { run("opt_merge"); - run(stringf("dff2dffe -unmap-mince %d", min_ce_use)); - run("simplemap t:$dff"); } - if ((abc9 && dff) || help_mode) - run("zinit -all w:* t:$_DFF_?_ t:$_DFFE_??_ t:$_SDFF*", "(only if -abc9 and -dff"); + if (nodffe) + run(stringf("dfflegalize -cell $_DFF_?_ 0 -cell $_DFF_?P?_ 0 -cell $_SDFF_?P?_ 0 -cell $_DLATCH_?_ x")); + else + run(stringf("dfflegalize -cell $_DFF_?_ 0 -cell $_DFFE_?P_ 0 -cell $_DFF_?P?_ 0 -cell $_DFFE_?P?P_ 0 -cell $_SDFF_?P?_ 0 -cell $_SDFFCE_?P?P_ 0 -cell $_DLATCH_?_ x -mince %d", min_ce_use)); run("techmap -map +/ice40/ff_map.v"); run("opt_expr -mux_undef"); run("simplemap"); - run("ice40_ffinit"); run("ice40_ffssr"); run("ice40_opt -full"); } |