diff options
Diffstat (limited to 'passes/fsm/fsm_expand.cc')
| -rw-r--r-- | passes/fsm/fsm_expand.cc | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/passes/fsm/fsm_expand.cc b/passes/fsm/fsm_expand.cc index 0a2166b99..2c344a1c1 100644 --- a/passes/fsm/fsm_expand.cc +++ b/passes/fsm/fsm_expand.cc @@ -54,13 +54,27 @@ struct FsmExpand if (cell->getPort("\\A").size() < 2) return true; + int in_bits = 0; RTLIL::SigSpec new_signals; - if (cell->hasPort("\\A")) + + if (cell->hasPort("\\A")) { + in_bits += GetSize(cell->getPort("\\A")); new_signals.append(assign_map(cell->getPort("\\A"))); - if (cell->hasPort("\\B")) + } + + if (cell->hasPort("\\B")) { + in_bits += GetSize(cell->getPort("\\B")); new_signals.append(assign_map(cell->getPort("\\B"))); - if (cell->hasPort("\\S")) + } + + if (cell->hasPort("\\S")) { + in_bits += GetSize(cell->getPort("\\S")); new_signals.append(assign_map(cell->getPort("\\S"))); + } + + if (in_bits > 8) + return false; + if (cell->hasPort("\\Y")) new_signals.append(assign_map(cell->getPort("\\Y"))); |