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Support parameter arrays, bug683.

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This commit is contained in:
Wilson Snyder
2014-04-01 23:16:16 -04:00
parent 091818483a
commit 28e35a64ea
11 changed files with 220 additions and 30 deletions
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src/V3EmitC.cpp
+7 -3
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@@ -71,7 +71,7 @@ public:
string vfmt, char fmtLetter);
void emitVarDecl(AstVar* nodep, const string& prefixIfImp);
typedef enum {EVL_IO, EVL_SIG, EVL_TEMP, EVL_STATIC, EVL_ALL} EisWhich;
typedef enum {EVL_IO, EVL_SIG, EVL_TEMP, EVL_PAR, EVL_ALL} EisWhich;
void emitVarList(AstNode* firstp, EisWhich which, const string& prefixIfImp);
void emitVarCtors();
bool emitSimpleOk(AstNodeMath* nodep);
@@ -1309,7 +1309,9 @@ void EmitCImp::emitVarResets(AstNodeModule* modp) {
// Constructor deals with it
}
else if (varp->isParam()) {
if (!varp->hasSimpleInit()) nodep->v3fatalSrc("No init for a param?");
if (!varp->valuep()) nodep->v3fatalSrc("No init for a param?");
// If a simple CONST value we initialize it using an enum
// If an ARRAYINIT we initialize it using an initial block similar to a signal
//puts("// parameter "+varp->name()+" = "+varp->valuep()->name()+"\n");
}
else if (AstInitArray* initarp = varp->valuep()->castInitArray()) {
@@ -1673,6 +1675,7 @@ void EmitCStmts::emitVarList(AstNode* firstp, EisWhich which, const string& pref
case EVL_IO: doit = varp->isIO(); break;
case EVL_SIG: doit = (varp->isSignal() && !varp->isIO()); break;
case EVL_TEMP: doit = (varp->isTemp() && !varp->isIO()); break;
case EVL_PAR: doit = (varp->isParam() && !varp->valuep()->castConst()); break;
default: v3fatalSrc("Bad Case");
}
if (varp->isStatic() ? !isstatic : isstatic) doit=false;
@@ -1828,6 +1831,7 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
puts("\n// PARAMETERS\n");
if (modp->isTop()) puts("// Parameters marked /*verilator public*/ for use by application code\n");
ofp()->putsPrivate(false); // public:
emitVarList(modp->stmtsp(), EVL_PAR, ""); // Only those that are non-CONST
for (AstNode* nodep=modp->stmtsp(); nodep; nodep = nodep->nextp()) {
if (AstVar* varp = nodep->castVar()) {
if (varp->isParam() && (varp->isUsedParam() || varp->isSigPublic())) {
@@ -1837,7 +1841,7 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
if (varp->isWide()) { // Unsupported for output
puts("// enum WData "+varp->name()+" //wide");
} else if (!varp->valuep()->castConst()) { // Unsupported for output
puts("// enum IData "+varp->name()+" //not simple value");
//puts("// enum ..... "+varp->name()+" //not simple value, see variable above instead");
} else {
puts("enum ");
puts(varp->isQuad()?"_QData":"_IData");