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| author | Marcin Kościelnicki <mwk@0x04.net> | 2020-03-30 15:02:24 +0200 |
|---|---|---|
| committer | Marcin Kościelnicki <mwk@0x04.net> | 2020-03-30 15:04:31 +0200 |
| commit | f68985f997865acefef63c3cb15074ebe2882869 (patch) | |
| tree | 7fde6ea79ffb62d853ef05c45bbda897aab934ce /CodingReadme | |
| parent | 1dbc70172830c57cda22e4bc82d2db57a2067203 (diff) | |
| download | yosys-f68985f997865acefef63c3cb15074ebe2882869.tar.gz yosys-f68985f997865acefef63c3cb15074ebe2882869.tar.bz2 yosys-f68985f997865acefef63c3cb15074ebe2882869.zip | |
deminout: prevent any constant assignment from demoting to input
Before this patch,
```
module top(inout io);
assign io = 1'bx;
endmodule
```
would have the `io` pin demoted to input (same happens for `1'bz`,
but not for `1'b0` or `1'b1`), resulting in check failures later on.
Part of fix for #1841.
Diffstat (limited to 'CodingReadme')
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