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| author | Clifford Wolf <clifford@clifford.at> | 2013-08-11 16:27:15 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2013-08-11 16:27:15 +0200 |
| commit | ccf36cb7d81a9513db15b8a36c240d2c7ec9f5b5 (patch) | |
| tree | a81d36a260ad19154cb160da0aba95aa0d3444d1 /libs | |
| parent | a5836af172a154bc0b8f9fdea34e140a5662bc99 (diff) | |
| download | yosys-ccf36cb7d81a9513db15b8a36c240d2c7ec9f5b5.tar.gz yosys-ccf36cb7d81a9513db15b8a36c240d2c7ec9f5b5.tar.bz2 yosys-ccf36cb7d81a9513db15b8a36c240d2c7ec9f5b5.zip | |
Added SAT support for $div and $mod cells
Diffstat (limited to 'libs')
| -rw-r--r-- | libs/ezsat/ezsat.cc | 6 | ||||
| -rw-r--r-- | libs/ezsat/ezsat.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/libs/ezsat/ezsat.cc b/libs/ezsat/ezsat.cc index 00918f62f..4258fb6fe 100644 --- a/libs/ezsat/ezsat.cc +++ b/libs/ezsat/ezsat.cc @@ -852,6 +852,12 @@ std::vector<int> ezSAT::vec_sub(const std::vector<int> &vec1, const std::vector< return vec; } +std::vector<int> ezSAT::vec_neg(const std::vector<int> &vec) +{ + std::vector<int> zero(vec.size(), FALSE); + return vec_sub(zero, vec); +} + void ezSAT::vec_cmp(const std::vector<int> &vec1, const std::vector<int> &vec2, int &carry, int &overflow, int &sign, int &zero) { assert(vec1.size() == vec2.size()); diff --git a/libs/ezsat/ezsat.h b/libs/ezsat/ezsat.h index 2d0307d51..4a6a72785 100644 --- a/libs/ezsat/ezsat.h +++ b/libs/ezsat/ezsat.h @@ -223,6 +223,7 @@ public: std::vector<int> vec_count(const std::vector<int> &vec, int bits, bool clip = true); std::vector<int> vec_add(const std::vector<int> &vec1, const std::vector<int> &vec2); std::vector<int> vec_sub(const std::vector<int> &vec1, const std::vector<int> &vec2); + std::vector<int> vec_neg(const std::vector<int> &vec); void vec_cmp(const std::vector<int> &vec1, const std::vector<int> &vec2, int &carry, int &overflow, int &sign, int &zero); @@ -305,6 +306,8 @@ struct ezSATvec ezSATvec(ezSAT &sat, const std::vector<int> &vec) : sat(sat), vec(vec) { } ezSATvec operator ~() { return ezSATvec(sat, sat.vec_not(vec)); } + ezSATvec operator -() { return ezSATvec(sat, sat.vec_neg(vec)); } + ezSATvec operator &(const ezSATvec &other) { return ezSATvec(sat, sat.vec_and(vec, other.vec)); } ezSATvec operator |(const ezSATvec &other) { return ezSATvec(sat, sat.vec_or(vec, other.vec)); } ezSATvec operator ^(const ezSATvec &other) { return ezSATvec(sat, sat.vec_xor(vec, other.vec)); } |