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Merge pull request #865 from yrabbit/ALU-head-at-zero

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gowin: BUGFIX. Place the ALU head in sliсe 0 only
This commit is contained in:
gatecat
2021-12-12 13:00:38 +00:00
committed by GitHub
parent 3c8af04ca5 ecf3027a4d
commit 21fc372a9d
1 changed files with 3 additions and 0 deletions
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3
gowin/pack.cc
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@@ -89,6 +89,9 @@ static void pack_alus(Context *ctx)
}
std::unique_ptr<CellInfo> packed_head = create_generic_cell(ctx, id_SLICE, ci->name.str(ctx) + "_HEAD_ALULC");
// Head is always SLICE0
packed_head->constr_z = 0;
packed_head->constr_abs_z = true;
if (ctx->verbose) {
log_info("packed ALU head into %s. CIN net is %s\n", ctx->nameOf(packed_head.get()),
ctx->nameOf(cin_netId));