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Add _nowide variants of LUT libraries in -nowidelut flows

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This commit is contained in:
Eddie Hung 2019-06-26 10:23:29 -07:00
parent 741ebba70a
commit 988e6163ab
4 changed files with 44 additions and 13 deletions
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12
techlibs/ecp5/abc_5g_nowide.lut Normal file
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@ -0,0 +1,12 @@
# ECP5-5G LUT library for ABC
# Note that ECP5 architecture assigns difference
# in LUT input delay to interconnect, so this is
# considered too
# Simple LUTs
# area D C B A
1 1 141
2 1 141 275
3 1 141 275 379
4 1 141 275 379 379

5
techlibs/ecp5/synth_ecp5.cc
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@ -273,7 +273,10 @@ struct SynthEcp5Pass : public ScriptPass
}
run("techmap -map +/ecp5/latches_map.v");
if (abc9) {
run("abc9 -lut +/ecp5/abc_5g.lut -box +/ecp5/abc_5g.box -W 200");
if (nowidelut)
run("abc9 -lut +/ecp5/abc_5g_nowide.lut -box +/ecp5/abc_5g.box -W 200");
else
run("abc9 -lut +/ecp5/abc_5g.lut -box +/ecp5/abc_5g.box -W 200");
} else {
if (nowidelut)
run("abc -lut 4 -dress");