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Improving vpr output support.

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* Support output BLIF for Xilinx architectures.
 * Support using .names in BLIF for Xilinx architectures.
 * Use the same `NO_LUT` define in both `synth_ice40` and
  `synth_xilinx`.
This commit is contained in:
Tim 'mithro' Ansell 2018-04-18 16:48:05 -07:00
parent ca39e493ba
commit d6bdefd2e9
4 changed files with 40 additions and 7 deletions
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2
techlibs/ice40/cells_map.v
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@ -27,7 +27,7 @@ module \$__DFFE_NP1 (input D, C, E, R, output Q); SB_DFFNES _TECHMAP_REPLACE_ (
module \$__DFFE_PP0 (input D, C, E, R, output Q); SB_DFFER _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .E(E), .R(R)); endmodule
module \$__DFFE_PP1 (input D, C, E, R, output Q); SB_DFFES _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .E(E), .S(R)); endmodule
`ifndef NO_SB_LUT4
`ifndef NO_LUT
module \$lut (A, Y);
parameter WIDTH = 0;
parameter LUT = 0;

6
techlibs/ice40/synth_ice40.cc
View file

@ -219,7 +219,7 @@ struct SynthIce40Pass : public ScriptPass
run("dffsr2dff");
if (!nodffe)
run("dff2dffe -direct-match $_DFF_*");
run("techmap -D NO_SB_LUT4 -map +/ice40/cells_map.v");
run("techmap -D NO_LUT -map +/ice40/cells_map.v");
run("opt_expr -mux_undef");
run("simplemap");
run("ice40_ffinit");
@ -241,9 +241,9 @@ struct SynthIce40Pass : public ScriptPass
if (check_label("map_cells"))
{
if (vpr)
run("techmap -D NO_SB_LUT4 -map +/ice40/cells_map.v");
run("techmap -D NO_LUT -map +/ice40/cells_map.v");
else
run("techmap -map +/ice40/cells_map.v", "(with -D NO_SB_LUT4 in vpr mode)");
run("techmap -map +/ice40/cells_map.v", "(with -D NO_LUT in vpr mode)");
run("clean");
}