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Add runtime arguments.

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This commit is contained in:
Wilson Snyder
2018-05-20 08:40:35 -04:00
parent 26c31db75e
commit f3c9b4fb03
6 changed files with 158 additions and 1 deletions
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include/verilated.cpp
+43
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@@ -1774,9 +1774,52 @@ void VerilatedImp::commandArgsAddGuts(int argc, const char** argv) VL_REQUIRES(s
if (!s_s.m_argVecLoaded) s_s.m_argVec.clear();
for (int i=0; i<argc; ++i) {
s_s.m_argVec.push_back(argv[i]);
commandArgVl(argv[i]);
}
s_s.m_argVecLoaded = true; // Can't just test later for empty vector, no arguments is ok
}
void VerilatedImp::commandArgVl(const std::string& arg) {
if (0 == strncmp(arg.c_str(), "+verilator+", strlen("+verilator+"))) {
std::string value;
if (0) {
}
else if (arg == "+verilator+debug") {
Verilated::debug(4);
}
else if (commandArgVlValue(arg, "+verilator+debugi+", value/*ref*/)) {
Verilated::debug(atoi(value.c_str()));
}
else if (arg == "+verilator+help") {
versionDump();
VL_PRINTF_MT("For help, please see 'verilator --help'\n");
VL_FATAL_MT("COMMAND_LINE", 0, "", "Exiting due to command line argument (not an error)");
}
else if (commandArgVlValue(arg, "+verilator+rand+reset+", value/*ref*/)) {
Verilated::randReset(atoi(value.c_str()));
}
else if (arg == "+verilator+V") {
versionDump(); // Someday more info too
VL_FATAL_MT("COMMAND_LINE", 0, "", "Exiting due to command line argument (not an error)");
}
else if (arg == "+verilator+version") {
versionDump();
VL_FATAL_MT("COMMAND_LINE", 0, "", "Exiting due to command line argument (not an error)");
}
else {
VL_PRINTF_MT("%%Warning: Unknown +verilator runtime argument: '%s'\n", arg.c_str());
}
}
}
bool VerilatedImp::commandArgVlValue(const std::string& arg,
const std::string& prefix, std::string& valuer) {
size_t len = prefix.length();
if (0==strncmp(prefix.c_str(), arg.c_str(), len)) {
valuer = arg.substr(len);
return true;
} else {
return false;
}
}
//======================================================================
// VerilatedSyms:: Methods