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Add --inhibit-sim switch so we can remove extra Vm_inhibitSim variable

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git-svn-id: file://localhost/svn/verilator/trunk/verilator@762 77ca24e4-aefa-0310-84f0-b9a241c72d87
This commit is contained in:
Wilson Snyder
2006-08-29 00:27:04 +00:00
parent 7758877166
commit eec5c8bf6d
5 changed files with 25 additions and 3 deletions
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src/V3EmitC.cpp
+11 -3
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@@ -1017,8 +1017,8 @@ void EmitCStmts::visit(AstDisplay* nodep, AstNUser*) {
void EmitCImp::emitVarResets(AstModule* modp) {
puts("// Reset internal values\n");
puts("__Vm_inhibitSim = false;\n");
if (modp->isTop()) {
if (v3Global.opt.inhibitSim()) puts("__Vm_inhibitSim = false;\n");
puts("__Vm_activity = false;\n");
puts("__Vm_didInit = false;\n");
puts("\n");
@@ -1188,6 +1188,9 @@ void EmitCImp::emitWrapEval(AstModule* modp) {
puts(symClassName()); puts("::init(this);\n");
puts("// Initialize\n");
puts("if (!__Vm_didInit) eval_initial_loop();\n");
if (v3Global.opt.inhibitSim()) {
puts("if (__Vm_inhibitSim) return;\n");
}
puts("// Evaluate till stable\n");
puts("VL_DEBUG_IF(cout<<\"\\n----TOP Evaluate "+modClassName(modp)+"::eval\"<<endl; );\n");
#ifndef NEW_ORDERING
@@ -1350,13 +1353,15 @@ void EmitCImp::emitInt(AstModule* modp) {
emitVarList(modp->stmtsp(), EVL_TEMP, "");
puts("\n// INTERNAL VARIABLES\n");
ofp()->putAlign(sizeof(bool));
ofp()->putsPrivate(!modp->isTop()); // private: unless top
ofp()->putAlign(8);
puts(symClassName()+"*\t__VlSymsp;\t\t// Symbol table\n");
ofp()->putsPrivate(false); // public:
puts("bool\t__Vm_inhibitSim;\t///< Manually set true to disable evaluation of module\n");
if (modp->isTop()) {
if (v3Global.opt.inhibitSim()) {
ofp()->putAlign(sizeof(bool));
puts("bool\t__Vm_inhibitSim;\t///< Set true to disable evaluation of module\n");
}
ofp()->putAlign(sizeof(bool));
puts("bool\t__Vm_activity;\t\t///< Used by trace routines to determine change occurred\n");
ofp()->putAlign(sizeof(bool));
@@ -1418,6 +1423,9 @@ void EmitCImp::emitInt(AstModule* modp) {
puts("void\tfinal();\t///< Function to call when simulation completed\n");
if (optSystemC()) ofp()->putsPrivate(true); ///< eval() is invoked by our sensitive() calls.
puts("void\teval();\t///< Main function to call from calling app when inputs change\n");
if (v3Global.opt.inhibitSim()) {
puts("void\tinhibitSim(bool flag) { __Vm_inhibitSim=flag; }\t///< Set true to disable evaluation of module\n");
}
ofp()->putsPrivate(true); // private:
puts("void\teval_initial_loop();\n");
#ifndef NEW_ORDERING