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Using $pos models for $bu0

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This commit is contained in:
Clifford Wolf 2014-09-03 21:20:59 +02:00
parent 5733f4a39d
commit b9cb483f3e
3 changed files with 3 additions and 18 deletions
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2
kernel/calc.cc
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@ -575,7 +575,7 @@ RTLIL::Const RTLIL::const_pow(const RTLIL::Const &arg1, const RTLIL::Const &arg2
RTLIL::Const RTLIL::const_pos(const RTLIL::Const &arg1, const RTLIL::Const&, bool signed1, bool, int result_len)
{
RTLIL::Const arg1_ext = arg1;
extend(arg1_ext, result_len, signed1);
extend_u0(arg1_ext, result_len, signed1);
return arg1_ext;
}

2
kernel/satgen.h
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@ -470,7 +470,7 @@ struct SatGen
{
std::vector<int> undef_a = importUndefSigSpec(cell->getPort("\\A"), timestep);
std::vector<int> undef_y = importUndefSigSpec(cell->getPort("\\Y"), timestep);
extendSignalWidthUnary(undef_a, undef_y, cell, cell->type != "$bu0");
extendSignalWidthUnary(undef_a, undef_y, cell);
if (cell->type == "$pos" || cell->type == "$bu0") {
ez->assume(ez->vec_eq(undef_a, undef_y));