Verilator thinks the first one is an abomination, but the second one is fine. Am I missing the obvious clean way to write this code?pic.twitter.com/cV2cYuoWf1
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haven't checked the LRM, but could it be that
$signed is defined to return an integer? Otherwise I'd open a bug. Usually fixed fast
The return value of $signed has the same size as the self-sized argument, which is then sign extended to the expression size.
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Verilator does all that correctly. It used to have bugs but I think I've found them all. For example http://www.clifford.at/yosys/vloghammer_bugs/issue_002_verilator.html …
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The problem is not that Verilator interprets this code incorrectly. The problem is that it produces a warning for imo perfectly fine code.
End of conversation
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