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Auto-extend and WIDTH warn on unsized X/Zs, bug1423.

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This commit is contained in:
Wilson Snyder
2019-05-07 21:57:38 -04:00
parent 03ebd5554f
commit 37c8cc82b2
8 changed files with 90 additions and 10 deletions
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src/V3Number.cpp
+14 -2
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@@ -1656,8 +1656,20 @@ V3Number& V3Number::opAssign(const V3Number& lhs) {
V3Number& V3Number::opExtendS(const V3Number& lhs, uint32_t lbits) {
// Note may be a width change during the sign extension
setZero();
for(int bit=0; bit<this->width(); bit++) {
setBit(bit,lhs.bitIsExtend(bit, lbits));
for (int bit=0; bit < width(); bit++) {
char extendWith = lhs.bitIsExtend(bit, lbits);
setBit(bit, extendWith);
}
return *this;
}
V3Number& V3Number::opExtendXZ(const V3Number& lhs, uint32_t lbits) {
// Note may be a width change during the X/Z extension
setZero();
for (int bit=0; bit < width(); bit++) {
char extendWith = lhs.bitIsExtend(bit, lbits);
if (extendWith == '1' || extendWith == 1) extendWith = 0;
setBit(bit, lhs.bitIsExtend(bit, lbits));
}
return *this;
}