diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/ff.cc | 13 | ||||
| -rw-r--r-- | kernel/ff.h | 2 |
2 files changed, 12 insertions, 3 deletions
diff --git a/kernel/ff.cc b/kernel/ff.cc index c43482bd2..b0f1a924f 100644 --- a/kernel/ff.cc +++ b/kernel/ff.cc @@ -669,14 +669,12 @@ namespace { } } -void FfData::flip_bits(const pool<int> &bits) { +void FfData::flip_rst_bits(const pool<int> &bits) { if (!bits.size()) return; remove_init(); - Wire *new_q = module->addWire(NEW_ID, width); - for (auto bit: bits) { if (has_arst) val_arst[bit] = invert(val_arst[bit]); @@ -684,6 +682,15 @@ void FfData::flip_bits(const pool<int> &bits) { val_srst[bit] = invert(val_srst[bit]); val_init[bit] = invert(val_init[bit]); } +} + +void FfData::flip_bits(const pool<int> &bits) { + if (!bits.size()) + return; + + flip_rst_bits(bits); + + Wire *new_q = module->addWire(NEW_ID, width); if (has_sr && cell) { log_warning("Flipping D/Q/init and inserting priority fixup to legalize %s.%s [%s].\n", log_id(module->name), log_id(cell->name), log_id(cell->type)); diff --git a/kernel/ff.h b/kernel/ff.h index 5a629d5dd..41721b4a1 100644 --- a/kernel/ff.h +++ b/kernel/ff.h @@ -209,6 +209,8 @@ struct FfData { // inputs and output, flip the corresponding init/reset bits, swap clr/set // inputs with proper priority fix. void flip_bits(const pool<int> &bits); + + void flip_rst_bits(const pool<int> &bits); }; YOSYS_NAMESPACE_END |