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Support $sscanf %t

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This commit is contained in:
Wilson Snyder
2025-09-01 14:40:22 -04:00
parent 33b838f139
commit 67f26508ba
6 changed files with 101 additions and 12 deletions
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src/V3EmitCFunc.cpp
+11 -9
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@@ -290,18 +290,20 @@ void EmitCFunc::displayArg(AstNode* dispp, AstNode** elistp, bool isScan, const
}
m_emitDispState.pushArg(fmtLetter, argp, "");
if (fmtLetter == 't' || fmtLetter == '^') {
const AstSFormatF* fmtp = nullptr;
VTimescale timeunit = VTimescale::NONE;
if (const AstDisplay* const nodep = VN_CAST(dispp, Display)) {
fmtp = nodep->fmtp();
timeunit = nodep->fmtp()->timeunit();
} else if (const AstSFormat* const nodep = VN_CAST(dispp, SFormat)) {
fmtp = nodep->fmtp();
} else {
fmtp = VN_CAST(dispp, SFormatF);
timeunit = nodep->fmtp()->timeunit();
} else if (const AstSScanF* const nodep = VN_CAST(dispp, SScanF)) {
timeunit = nodep->timeunit();
} else if (const AstSFormatF* const nodep = VN_CAST(dispp, SFormatF)) {
timeunit = nodep->timeunit();
}
UASSERT_OBJ(fmtp, dispp,
"Use of %t must be under AstDisplay, AstSFormat, or AstSFormatF");
UASSERT_OBJ(!fmtp->timeunit().isNone(), fmtp, "timenunit must be set");
m_emitDispState.pushArg(' ', nullptr, cvtToStr((int)fmtp->timeunit().powerOfTen()));
UASSERT_OBJ(!timeunit.isNone(), dispp,
"Use of %t must be under AstDisplay, AstSFormat, or AstSFormatF, or "
"SScanF, and timeunit set");
m_emitDispState.pushArg(' ', nullptr, cvtToStr((int)timeunit.powerOfTen()));
}
} else {
m_emitDispState.pushArg(fmtLetter, nullptr, "");