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| author | Clifford Wolf <clifford@clifford.at> | 2017-12-10 08:11:08 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2017-12-10 08:11:08 +0100 |
| commit | 133a0f497865c76e3e9c42ced93eb7f5d349ade6 (patch) | |
| tree | 6297a8c6d61200ded718ef86721aeb5ad266a190 /backends | |
| parent | 83cf7363096ba1454c2f7cc810df808a96794d82 (diff) | |
| download | yosys-133a0f497865c76e3e9c42ced93eb7f5d349ade6.tar.gz yosys-133a0f497865c76e3e9c42ced93eb7f5d349ade6.tar.bz2 yosys-133a0f497865c76e3e9c42ced93eb7f5d349ade6.zip | |
Add support for $pmux in btor back-end
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/btor/btor.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/backends/btor/btor.cc b/backends/btor/btor.cc index 768ff0292..6e8da4707 100644 --- a/backends/btor/btor.cc +++ b/backends/btor/btor.cc @@ -417,6 +417,29 @@ struct BtorWorker goto okay; } + if (cell->type == "$pmux") + { + SigSpec sig_a = sigmap(cell->getPort("\\A")); + SigSpec sig_b = sigmap(cell->getPort("\\B")); + SigSpec sig_s = sigmap(cell->getPort("\\S")); + SigSpec sig_y = sigmap(cell->getPort("\\Y")); + + int width = GetSize(sig_a); + int sid = get_bv_sid(width); + int nid = get_sig_nid(sig_a); + + for (int i = 0; i < GetSize(sig_s); i++) { + int nid_b = get_sig_nid(sig_b.extract(i*width, width)); + int nid_s = get_sig_nid(sig_s.extract(i)); + int nid2 = next_nid++; + btorf("%d ite %d %d %d %d\n", nid2, sid, nid_s, nid_b, nid); + nid = nid2; + } + + add_nid_sig(nid, sig_y); + goto okay; + } + if (cell->type.in("$dff", "$ff", "$_DFF_P_", "$_DFF_N", "$_FF_")) { SigSpec sig_d = sigmap(cell->getPort("\\D")); |