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memory_dff: Recognize read ports with reset / initial value.

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This commit is contained in:
Marcelina Kościelnicka 2021-05-27 21:08:11 +02:00
parent 24027b5446
commit 72d86c327e
4 changed files with 55 additions and 8 deletions
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7
passes/memory/memory_dff.cc
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@ -60,11 +60,6 @@ struct MemoryDffWorker
log("output FF has both set and reset, not supported.\n");
return;
}
if (ff.has_srst || ff.has_arst || !ff.val_init.is_fully_undef()) {
// TODO: not supported yet
log("output FF has reset and/or init value, not supported yet.\n");
return;
}
merger.remove_output_ff(bits);
if (ff.has_en && !ff.pol_en)
ff.sig_en = module->LogicNot(NEW_ID, ff.sig_en);
@ -79,7 +74,6 @@ struct MemoryDffWorker
port.en = ff.sig_en;
else
port.en = State::S1;
#if 0
if (ff.has_arst) {
port.arst = ff.sig_arst;
port.arst_value = ff.val_arst;
@ -94,7 +88,6 @@ struct MemoryDffWorker
port.srst = State::S0;
}
port.init_value = ff.val_init;
#endif
port.data = ff.sig_q;
mem.emit();
log("merged output FF to cell.\n");