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Merge pull request #2077 from YosysHQ/eddie/abc9_dff_improve

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abc9: -dff improvements
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Eddie Hung 2020-06-04 08:15:25 -07:00 • committed by GitHub
commit 69850204c4
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6 changed files with 143 additions and 55 deletions
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techlibs/common/abc9_unmap.v
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@ -1,5 +1,5 @@
(* techmap_celltype = "$__DFF_N__$abc9_flop $__DFF_P__$abc9_flop" *)
module $__DFF_x__$abc9_flop (input C, D, Q, output n1);
module $__DFF_x__$abc9_flop (input C, D, (* init = 1'b0 *) input Q, output n1);
parameter _TECHMAP_CELLTYPE_ = "";
generate if (_TECHMAP_CELLTYPE_ == "$__DFF_N__$abc9_flop")
$_DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q));