string bitNames(BitNamesWhich which) {
string bits="";
bool prev = false;
int msb = 0;
// bit==-1 loops below; we do one extra iteration so end with prev=false
for (int bit=(m_flags.size()/FLAGS_PER_BIT)-1; bit >= -1; --bit) {
if (bit>=0
&& ((which == BN_UNUSED && !usedFlag(bit) && drivenFlag(bit))
|| (which == BN_UNDRIVEN && usedFlag(bit) && !drivenFlag(bit))
|| (which == BN_BOTH && !usedFlag(bit) && !drivenFlag(bit)))) {
if (!prev) {
prev=true;
msb = bit;
}
} else if (prev) {
AstBasicDType* bdtypep = m_varp->basicp();
int lsb = bit+1;
if (bits != "") bits += ",";
if (lsb==msb) {
bits += cvtToStr(lsb+bdtypep->lsb());
} else {
if (bdtypep->littleEndian()) {
bits += cvtToStr(lsb+bdtypep->lsb())+":"+cvtToStr(msb+bdtypep->lsb());
} else {
bits += cvtToStr(msb+bdtypep->lsb())+":"+cvtToStr(lsb+bdtypep->lsb());
}
}
prev = false;
}
}
return "["+bits+"]";
}
void EmitCSyms::emitSymImp() {
UINFO(6,__FUNCTION__<<": "<<endl);
string filename = v3Global.opt.makeDir()+"/"+symClassName()+".cpp";
AstCFile* cfilep = newCFile(filename, true/*slow*/, true/*source*/);
cfilep->support(true);
V3OutCFile cf (filename);
m_ofp = &cf;
ofp()->putsHeader();
puts("// DESCR" "IPTION: Verilator output: Symbol table implementation internals\n");
puts("\n");
// Includes
puts("#include \""+symClassName()+".h\"\n");
for (AstNodeModule* nodep = v3Global.rootp()->modulesp(); nodep; nodep=nodep->nextp()->castNodeModule()) {
puts("#include \""+modClassName(nodep)+".h\"\n");
}
//puts("\n// GLOBALS\n");
puts("\n// FUNCTIONS\n");
puts(symClassName()+"::"+symClassName()+"("+topClassName()+"* topp, const char* namep)\n");
puts("\t// Setup locals\n");
puts("\t: __Vm_namep(namep)\n"); // No leak, as we get destroyed when the top is destroyed
puts("\t, __Vm_activity(false)\n");
puts("\t, __Vm_didInit(false)\n");
puts("\t// Setup submodule names\n");
char comma=',';
for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
AstScope* scopep = it->first; AstNodeModule* modp = it->second;
if (modp->isTop()) {
} else {
ofp()->printf("\t%c %-30s ", comma, scopep->nameDotless().c_str());
puts("(Verilated::catName(topp->name(),");
// The "." is added by catName
putsQuoted(scopep->prettyName());
puts("))\n");
comma=',';
}
}
puts("{\n");
puts("// Pointer to top level\n");
puts("TOPp = topp;\n");
puts("// Setup each module's pointers to their submodules\n");
for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
AstScope* scopep = it->first; AstNodeModule* modp = it->second;
if (!modp->isTop()) {
string arrow = scopep->name();
string::size_type pos;
while ((pos=arrow.find(".")) != string::npos) {
arrow.replace(pos, 1, "->");
}
if (arrow.substr(0,5) == "TOP->") arrow.replace(0,5,"TOPp->");
ofp()->printf("%-30s ", arrow.c_str());
puts(" = &");
puts(scopep->nameDotless()+";\n");
}
}
puts("// Setup each module's pointer back to symbol table (for public functions)\n");
puts("TOPp->__Vconfigure(this, true);\n");
for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
AstScope* scopep = it->first; AstNodeModule* modp = it->second;
if (!modp->isTop()) {
// first is used by AstCoverDecl's call to __vlCoverInsert
bool first = !modp->user1();
modp->user1(true);
puts(scopep->nameDotless()+".__Vconfigure(this, "
+(first?"true":"false")
+");\n");
}
}
puts("// Setup scope names\n");
for (ScopeNames::iterator it = m_scopeNames.begin(); it != m_scopeNames.end(); ++it) {
puts("__Vscope_"+it->second.m_symName+".configure(this,name(),");
putsQuoted(it->second.m_prettyName);
puts(");\n");
}
if (v3Global.dpi()) {
puts("// Setup export functions\n");
puts("for (int __Vfinal=0; __Vfinal<2; __Vfinal++) {\n");
for (ScopeFuncs::iterator it = m_scopeFuncs.begin(); it != m_scopeFuncs.end(); ++it) {
AstScopeName* scopep = it->second.m_scopep;
AstCFunc* funcp = it->second.m_funcp;
AstNodeModule* modp = it->second.m_modp;
if (funcp->dpiExport()) {
puts("__Vscope_"+scopep->scopeSymName()+".exportInsert(__Vfinal,");
putsQuoted(funcp->cname());
puts(", (void*)(&");
puts(modClassName(modp));
puts("::");
puts(funcp->name());
puts("));\n");
}
}
// It would be less code if each module inserted its own variables.
// Someday. For now public isn't common.
for (ScopeVars::iterator it = m_scopeVars.begin(); it != m_scopeVars.end(); ++it) {
AstNodeModule* modp = it->second.m_modp;
AstScope* scopep = it->second.m_scopep;
AstVar* varp = it->second.m_varp;
//
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());
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());
if (dtypep->castPackArrayDType()) pdim++; else udim++;
dtypep = adtypep->subDTypep();
}
else break; // AstBasicDType - nothing below, 1
}
}
//
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);
puts(", &(");
if (modp->isTop()) {
puts(scopep->nameDotless());
puts("p->");
} else {
puts(scopep->nameDotless());
puts(".");
}
puts(varp->name());
puts("), ");
puts(varp->vlEnumType()); // VLVT_UINT32 etc
puts(",");
puts(varp->vlEnumDir()); // VLVD_IN etc
if (varp->isSigUserRWPublic()) puts("|VLVF_PUB_RW");
else if (varp->isSigUserRdPublic()) puts("|VLVF_PUB_RD");
puts(",");
puts(cvtToStr(pdim+udim));
puts(bounds);
puts(");\n");
}
puts("}\n");
}
puts("}\n");
if (v3Global.opt.savable() ) {
puts("\n");
for (int de=0; de<2; ++de) {
string classname = de ? "VerilatedDeserialize" : "VerilatedSerialize";
string funcname = de ? "__Vdeserialize" : "__Vserialize";
string op = de ? ">>" : "<<";
puts("void "+symClassName()+"::"+funcname+"("+classname+"& os) {\n");
puts( "// LOCAL STATE\n");
// __Vm_namep presumably already correct
puts( "os"+op+"__Vm_activity;\n");
puts( "os"+op+"__Vm_didInit;\n");
puts( "// SUBCELL STATE\n");
for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
AstScope* scopep = it->first; AstNodeModule* modp = it->second;
if (!modp->isTop()) {
puts( scopep->nameDotless()+"."+funcname+"(os);\n");
}
}
puts("}\n");
}
}
}