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| author | Eddie Hung <eddie@fpgeh.com> | 2020-05-14 00:29:45 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2020-05-14 10:33:57 -0700 |
| commit | 13f9d65b6fc09af76330c02ab420324b50db61da (patch) | |
| tree | c2e403d93adf7e029feb4c489ac45cb6ac89d634 /techlibs/common | |
| parent | fa31e84112c004348fae30e64ca224367b71d187 (diff) | |
| download | yosys-13f9d65b6fc09af76330c02ab420324b50db61da.tar.gz yosys-13f9d65b6fc09af76330c02ab420324b50db61da.tar.bz2 yosys-13f9d65b6fc09af76330c02ab420324b50db61da.zip | |
abc9: preserve $_DFF_?_.Q's (* init *); rely on clean to remove it
Diffstat (limited to 'techlibs/common')
| -rw-r--r-- | techlibs/common/abc9_map.v | 4 | ||||
| -rw-r--r-- | techlibs/common/abc9_unmap.v | 5 |
2 files changed, 4 insertions, 5 deletions
diff --git a/techlibs/common/abc9_map.v b/techlibs/common/abc9_map.v index 182915842..bb2b4a4b1 100644 --- a/techlibs/common/abc9_map.v +++ b/techlibs/common/abc9_map.v @@ -3,14 +3,14 @@ module $_DFF_x_(input C, D, output Q); parameter [0:0] _TECHMAP_WIREINIT_Q_ = 1'bx; parameter _TECHMAP_CELLTYPE_ = ""; - (* init=_TECHMAP_WIREINIT_Q_ *) wire D_; + wire D_; generate if (_TECHMAP_CELLTYPE_ == "$_DFF_N_") begin if (_TECHMAP_WIREINIT_Q_ === 1'b0) begin $__DFF_N__$abc9_flop _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q), .n1(D_)); $_DFF_N_ ff (.C(C), .D(D_), .Q(Q)); end else - $__DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q));// hide from abc9 using $__ prefix + $__DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q)); // hide from abc9 using $__ prefix end else if (_TECHMAP_CELLTYPE_ == "$_DFF_P_") begin if (_TECHMAP_WIREINIT_Q_ === 1'b0) begin diff --git a/techlibs/common/abc9_unmap.v b/techlibs/common/abc9_unmap.v index d628a73ac..b765356d8 100644 --- a/techlibs/common/abc9_unmap.v +++ b/techlibs/common/abc9_unmap.v @@ -1,6 +1,5 @@ (* techmap_celltype = "$__DFF_N__$abc9_flop $__DFF_P__$abc9_flop" *) -module $__DFF_x__$abc9_flop (input C, D, Q, (* init = INIT *) output n1); - parameter [0:0] INIT = 1'bx; +module $__DFF_x__$abc9_flop (input C, D, Q, output n1); parameter _TECHMAP_CELLTYPE_ = ""; generate if (_TECHMAP_CELLTYPE_ == "$__DFF_N__$abc9_flop") $_DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q)); @@ -12,7 +11,7 @@ module $__DFF_x__$abc9_flop (input C, D, Q, (* init = INIT *) output n1); endmodule (* techmap_celltype = "$__DFF_N_ $__DFF_P_" *) -module $__DFF_N__$abc9_flop (input C, D, output Q); +module $__DFF_x_ (input C, D, output Q); parameter _TECHMAP_CELLTYPE_ = ""; generate if (_TECHMAP_CELLTYPE_ == "$__DFF_N_") $_DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q)); |