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enable dff context initialization

This commit is contained in:
Miodrag Milanovic 2024-04-30 13:40:35 +02:00
parent dc16bdd85b
commit 9a9190b67d
2 changed files with 11 additions and 7 deletions
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12
techlibs/nanoxplore/cells_map.v
View File

@ -71,21 +71,25 @@ module \$_SDFFE_xxxx_ (input D, C, R, E, output Q);
endmodule
module \$_DFF_P_ (input D, C, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
NX_DFF #(.dff_ctxt(1'b0), .dff_edge(1'b0), .dff_init(1'b0), .dff_load(1'b0), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(1'b1), .R(1'b0), .O(Q));
NX_DFF #(.dff_ctxt(_TECHMAP_WIREINIT_Q_), .dff_edge(1'b0), .dff_init(1'b0), .dff_load(1'b0), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(1'b1), .R(1'b0), .O(Q));
endmodule
module \$_DFF_N_ (input D, C, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
NX_DFF #(.dff_ctxt(1'b0), .dff_edge(1'b1), .dff_init(1'b0), .dff_load(1'b0), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(1'b1), .R(1'b0), .O(Q));
NX_DFF #(.dff_ctxt(_TECHMAP_WIREINIT_Q_), .dff_edge(1'b1), .dff_init(1'b0), .dff_load(1'b0), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(1'b1), .R(1'b0), .O(Q));
endmodule
module \$_DFFE_PP_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
NX_DFF #(.dff_ctxt(1'b0), .dff_edge(1'b0), .dff_init(1'b0), .dff_load(1'b1), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(E), .R(1'b0), .O(Q));
NX_DFF #(.dff_ctxt(_TECHMAP_WIREINIT_Q_), .dff_edge(1'b0), .dff_init(1'b0), .dff_load(1'b1), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(E), .R(1'b0), .O(Q));
endmodule
module \$_DFFE_NP_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
NX_DFF #(.dff_ctxt(1'b0), .dff_edge(1'b1), .dff_init(1'b0), .dff_load(1'b1), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(E), .R(1'b0), .O(Q));
NX_DFF #(.dff_ctxt(_TECHMAP_WIREINIT_Q_), .dff_edge(1'b1), .dff_init(1'b0), .dff_load(1'b1), .dff_sync(1'b0), .dff_type(1'b0)) _TECHMAP_REPLACE_ (.I(D), .CK(C), .L(E), .R(1'b0), .O(Q));
endmodule

6
techlibs/nanoxplore/synth_nanoxplore.cc
View File

@ -302,11 +302,11 @@ struct SynthNanoXplorePass : public ScriptPass
if (check_label("map_ffs"))
{
std::string dfflegalize_args = " -cell $_DFF_?_ 0 -cell $_DFF_?P?_ r -cell $_SDFF_?P?_ r";
std::string dfflegalize_args = " -cell $_DFF_?_ 01 -cell $_DFF_?P?_ r -cell $_SDFF_?P?_ r";
if (help_mode) {
dfflegalize_args += " [-cell $_DFFE_?P_ 0 -cell $_DFFE_?P?P_ r -cell $_SDFFE_?P?P_ r]";
dfflegalize_args += " [-cell $_DFFE_?P_ 01 -cell $_DFFE_?P?P_ r -cell $_SDFFE_?P?P_ r]";
} else if (!nodffe) {
dfflegalize_args += " -cell $_DFFE_?P_ 0 -cell $_DFFE_?P?P_ r -cell $_SDFFE_?P?P_ r";
dfflegalize_args += " -cell $_DFFE_?P_ 01 -cell $_DFFE_?P?P_ r -cell $_SDFFE_?P?P_ r";
}
dfflegalize_args += " -cell $_DLATCH_?_ x";
run("dfflegalize" + dfflegalize_args,"($_*DFFE_* only if not -nodffe)");