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Commentary, bug1339.

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This commit is contained in:
Wilson Snyder 2019-03-01 20:14:48 -05:00
parent ab3c6576ed
commit f26fb51509
3 changed files with 19 additions and 9 deletions
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8
examples/tracing_c/sim_main.cpp
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@ -27,15 +27,19 @@ int main(int argc, char** argv, char** env) {
// Prevent unused variable warnings
if (0 && argc && argv && env) {}
// Pass arguments so Verilated code can see them, e.g. $value$plusargs
Verilated::commandArgs(argc, argv);
// Set debug level, 0 is off, 9 is highest presently used
// May be overridden by commandArgs
Verilated::debug(0);
// Randomization reset policy
// May be overridden by commandArgs
Verilated::randReset(2);
// Pass arguments so Verilated code can see them, e.g. $value$plusargs
// This needs to be called before you create any model
Verilated::commandArgs(argc, argv);
// Construct the Verilated model, from Vtop.h generated from Verilating "top.v"
Vtop* top = new Vtop; // Or use a const unique_ptr, or the VL_UNIQUE_PTR wrapper

8
examples/tracing_sc/sc_main.cpp
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@ -24,15 +24,19 @@ int sc_main(int argc, char* argv[]) {
// Prevent unused variable warnings
if (0 && argc && argv) {}
// Pass arguments so Verilated code can see them, e.g. $value$plusargs
Verilated::commandArgs(argc, argv);
// Set debug level, 0 is off, 9 is highest presently used
// May be overridden by commandArgs
Verilated::debug(0);
// Randomization reset policy
// May be overridden by commandArgs
Verilated::randReset(2);
// Pass arguments so Verilated code can see them, e.g. $value$plusargs
// This needs to be called before you create any model
Verilated::commandArgs(argc, argv);
// General logfile
ios::sync_with_stdio();

12
include/verilated.h
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@ -438,7 +438,9 @@ public:
static void flushCb(VerilatedVoidCb cb) VL_MT_SAFE;
static void flushCall() VL_MT_SAFE;
/// Record command line arguments, for retrieval by $test$plusargs/$value$plusargs
/// Record command line arguments, for retrieval by $test$plusargs/$value$plusargs,
/// and for parsing +verilator+ run-time arguments.
/// This should be called before the first model is created.
static void commandArgs(int argc, const char** argv) VL_MT_SAFE;
static void commandArgs(int argc, char** argv) VL_MT_SAFE {
commandArgs(argc, const_cast<const char**>(argv)); }
@ -563,13 +565,13 @@ extern void VL_PRINTF_MT(const char* formatp, ...) VL_ATTR_PRINTF(1) VL_MT_SAFE;
/// Print a debug message from internals with standard prefix, with printf style format
extern void VL_DBG_MSGF(const char* formatp, ...) VL_ATTR_PRINTF(1) VL_MT_SAFE;
extern IData VL_RANDOM_I(int obits); ///< Randomize a signal
extern QData VL_RANDOM_Q(int obits); ///< Randomize a signal
extern IData VL_RANDOM_I(int obits); ///< Randomize a signal
extern QData VL_RANDOM_Q(int obits); ///< Randomize a signal
extern WDataOutP VL_RANDOM_W(int obits, WDataOutP outwp); ///< Randomize a signal
/// Init time only, so slow is fine
extern IData VL_RAND_RESET_I(int obits); ///< Random reset a signal
extern QData VL_RAND_RESET_Q(int obits); ///< Random reset a signal
extern IData VL_RAND_RESET_I(int obits); ///< Random reset a signal
extern QData VL_RAND_RESET_Q(int obits); ///< Random reset a signal
extern WDataOutP VL_RAND_RESET_W(int obits, WDataOutP outwp); ///< Random reset a signal
extern WDataOutP VL_ZERO_RESET_W(int obits, WDataOutP outwp); ///< Zero reset a signal (slow - else use VL_ZERO_W)