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abc9: not enough to techmap_fail on (* init=1 *), hide them using $__

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This commit is contained in:
Eddie Hung 2020-04-16 12:08:59 -07:00
parent 5ad3a85288
commit 722540dbf9
4 changed files with 48 additions and 12 deletions
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12
techlibs/common/abc9_unmap.v
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@ -10,3 +10,15 @@ module $__DFF_x__$abc9_flop (input C, D, Q, (* init = INIT *) output n1);
$error("Unrecognised _TECHMAP_CELLTYPE_");
endgenerate
endmodule
(* techmap_celltype = "$__DFF_N_ $__DFF_P_" *)
module $__DFF_N__$abc9_flop(input C, D, output Q);
parameter _TECHMAP_CELLTYPE_ = "";
generate if (_TECHMAP_CELLTYPE_ == "$__DFF_N_")
$_DFF_N_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q));
else if (_TECHMAP_CELLTYPE_ == "$__DFF_P_")
$_DFF_P_ _TECHMAP_REPLACE_ (.C(C), .D(D), .Q(Q));
else if (_TECHMAP_CELLTYPE_ != "")
$error("Unrecognised _TECHMAP_CELLTYPE_");
endgenerate
endmodule