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Fix error on wide numbers that represent small msb/lsb, msg1991.

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This commit is contained in:
Wilson Snyder
2016-09-08 21:30:35 -04:00
parent 6789d247e2
commit 26774eb045
4 changed files with 45 additions and 2 deletions
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src/V3Number.cpp
+8 -2
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@@ -605,7 +605,10 @@ string V3Number::displayed(FileLine*fl, const string& vformat) const {
uint32_t V3Number::toUInt() const {
UASSERT(!isFourState(),"toUInt with 4-state "<<*this);
UASSERT((width()<33 || (width()<65 && m_value[1]==0)), "Value too wide "<<*this);
// We allow wide numbers that represent values <= 32 bits
for (int i=1; i<words(); ++i) {
UASSERT(!m_value[i], "Value too wide for 32-bits expected in this context "<<*this);
}
return m_value[0];
}
@@ -636,7 +639,10 @@ vlsint32_t V3Number::toSInt() const {
vluint64_t V3Number::toUQuad() const {
UASSERT(!isFourState(),"toUQuad with 4-state "<<*this);
UASSERT(width()<65, "Value too wide "<<*this);
// We allow wide numbers that represent values <= 64 bits
for (int i=2; i<words(); ++i) {
UASSERT(!m_value[i], "Value too wide for 64-bits expected in this context "<<*this);
}
if (width()<=32) return ((vluint64_t)(toUInt()));
return ((vluint64_t)m_value[1]<<VL_ULL(32)) | ((vluint64_t)m_value[0]);
}