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In BLIF, a .names without entries already always outputs 0

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This commit is contained in:
Clifford Wolf 2016-07-08 11:41:26 +02:00
parent 6bda612925
commit 72149aba2e
1 changed files with 0 additions and 11 deletions
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11
backends/blif/blif.cc
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@ -351,24 +351,13 @@ struct BlifDumper
f << stringf(" %s", cstr(output)); f << stringf(" %s", cstr(output));
f << stringf("\n"); f << stringf("\n");
RTLIL::SigSpec mask = cell->parameters.at("\\LUT"); RTLIL::SigSpec mask = cell->parameters.at("\\LUT");
bool one = false;
for (int i = 0; i < (1 << width); i++) for (int i = 0; i < (1 << width); i++)
if (mask[i] == RTLIL::S1) { if (mask[i] == RTLIL::S1) {
for (int j = width-1; j >= 0; j--) { for (int j = width-1; j >= 0; j--) {
f << ((i>>j)&1 ? '1' : '0'); f << ((i>>j)&1 ? '1' : '0');
} }
f << " 1\n"; f << " 1\n";
one = true;
} }
/* For some reason, sometimes we get LUTs with
* an all zero mask, which won't give any
* .names entries, so write one entry with
* all don't cares */
if (!one) {
for (int j = width-1; j >= 0; j--)
f << '-';
f << " 0\n";
}
continue; continue;
} }