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Fix nested packed arrays and structs, bug600.

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IMPORTANT: Packed arrays are now represented as a single linear vector in
Verilated models this may affect packed arrays that are public or accessed via the VPI.
This commit is contained in:
Wilson Snyder
2013-01-14 21:49:22 -05:00
parent 057ca497dd
commit 8127a79cb1
23 changed files with 268 additions and 114 deletions
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src/V3EmitCSyms.cpp
+7 -6
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@@ -454,29 +454,30 @@ void EmitCSyms::emitSymImp() {
AstScope* scopep = it->second.m_scopep;
AstVar* varp = it->second.m_varp;
//
int dim=0;
int pdim=0;
int udim=0;
string bounds;
if (AstBasicDType* basicp = varp->basicp()) {
// Range is always first, it's not in "C" order
if (basicp->isRanged()) {
bounds += " ,"; bounds += cvtToStr(basicp->msb());
bounds += ","; bounds += cvtToStr(basicp->lsb());
dim++;
pdim++;
}
for (AstNodeDType* dtypep=varp->dtypep(); dtypep; ) {
dtypep = dtypep->skipRefp(); // Skip AstRefDType/AstTypedef, or return same node
if (AstNodeArrayDType* adtypep = dtypep->castNodeArrayDType()) {
bounds += " ,"; bounds += cvtToStr(adtypep->msb());
bounds += ","; bounds += cvtToStr(adtypep->lsb());
dim++;
if (dtypep->castPackArrayDType()) pdim++; else udim++;
dtypep = adtypep->subDTypep();
}
else break; // AstBasicDType - nothing below, 1
}
}
//
if (dim>2) {
puts("//UNSUP "); // VerilatedImp can't deal with >2d arrays
if (pdim>1 || udim>1) {
puts("//UNSUP "); // VerilatedImp can't deal with >2d or packed arrays
}
puts("__Vscope_"+it->second.m_scopeName+".varInsert(__Vfinal,");
putsQuoted(it->second.m_varBasePretty);
@@ -496,7 +497,7 @@ void EmitCSyms::emitSymImp() {
if (varp->isSigUserRWPublic()) puts("|VLVF_PUB_RW");
else if (varp->isSigUserRdPublic()) puts("|VLVF_PUB_RD");
puts(",");
puts(cvtToStr(dim));
puts(cvtToStr(pdim+udim));
puts(bounds);
puts(");\n");
}