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| author | Clifford Wolf <clifford@clifford.at> | 2017-05-17 09:08:29 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2017-05-17 09:08:29 +0200 |
| commit | 05cdd58c8dc73968992681d0ee1cbfa89880b94f (patch) | |
| tree | 426fabb50c83d45f1194bd94125d4701242e920f /kernel/cellaigs.cc | |
| parent | 9f4fbc5e74747c8973da3a2fd42d2ef40dbe1fa5 (diff) | |
| download | yosys-05cdd58c8dc73968992681d0ee1cbfa89880b94f.tar.gz yosys-05cdd58c8dc73968992681d0ee1cbfa89880b94f.tar.bz2 yosys-05cdd58c8dc73968992681d0ee1cbfa89880b94f.zip | |
Add $_ANDNOT_ and $_ORNOT_ gates
Diffstat (limited to 'kernel/cellaigs.cc')
| -rw-r--r-- | kernel/cellaigs.cc | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/cellaigs.cc b/kernel/cellaigs.cc index 41f81355d..5fd76afe5 100644 --- a/kernel/cellaigs.cc +++ b/kernel/cellaigs.cc @@ -202,6 +202,16 @@ struct AigMaker return or_gate(and_gate(A, B), nor_gate(A, B)); } + int andnot_gate(int A, int B) + { + return and_gate(A, not_gate(B)); + } + + int ornot_gate(int A, int B) + { + return or_gate(A, not_gate(B)); + } + int mux_gate(int A, int B, int S) { return or_gate(and_gate(A, not_gate(S)), and_gate(B, S)); @@ -290,7 +300,7 @@ Aig::Aig(Cell *cell) goto optimize; } - if (cell->type.in("$and", "$_AND_", "$_NAND_", "$or", "$_OR_", "$_NOR_", "$xor", "$xnor", "$_XOR_", "$_XNOR_")) + if (cell->type.in("$and", "$_AND_", "$_NAND_", "$or", "$_OR_", "$_NOR_", "$xor", "$xnor", "$_XOR_", "$_XNOR_", "$_ANDNOT_", "$_ORNOT_")) { for (int i = 0; i < GetSize(cell->getPort("\\Y")); i++) { int A = mk.inport("\\A", i); @@ -300,7 +310,9 @@ Aig::Aig(Cell *cell) cell->type.in("$or", "$_OR_") ? mk.or_gate(A, B) : cell->type.in("$_NOR_") ? mk.nor_gate(A, B) : cell->type.in("$xor", "$_XOR_") ? mk.xor_gate(A, B) : - cell->type.in("$xnor", "$_XNOR_") ? mk.xnor_gate(A, B) : -1; + cell->type.in("$xnor", "$_XNOR_") ? mk.xnor_gate(A, B) : + cell->type.in("$_ANDNOT_") ? mk.andnot_gate(A, B) : + cell->type.in("$_ORNOT_") ? mk.ornot_gate(A, B) : -1; mk.outport(Y, "\\Y", i); } goto optimize; |