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Merge pull request #1660 from YosysHQ/eddie/abc9_unpermute_luts

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Unpermute LUT ordering for ice40/ecp5/xilinx
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Eddie Hung 2020-01-28 11:55:51 -08:00 • committed by GitHub
commit 7939727d14
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9 changed files with 201 additions and 143 deletions
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passes/pmgen/ice40_wrapcarry.cc
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@ -127,7 +127,7 @@ struct Ice40WrapCarryPass : public Pass {
lut->setParam(ID(WIDTH), 4);
lut->setParam(ID(LUT), cell->getParam(ID(LUT)));
auto I3 = cell->getPort(cell->getParam(ID(I3_IS_CI)).as_bool() ? ID(CI) : ID(I3));
lut->setPort(ID(A), {cell->getPort(ID(I0)), cell->getPort(ID(A)), cell->getPort(ID(B)), I3 });
lut->setPort(ID(A), { I3, cell->getPort(ID(B)), cell->getPort(ID(A)), cell->getPort(ID(I0)) });
lut->setPort(ID(Y), cell->getPort(ID(O)));
Const src;