65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#ifndef _NPC_TRACER_H_
|
|
#define _NPC_TRACER_H_
|
|
#include <filesystem>
|
|
#include <verilated_vcd_c.h>
|
|
|
|
template <class T> class Tracer {
|
|
std::shared_ptr<T> top;
|
|
std::unique_ptr<VerilatedVcdC> m_trace;
|
|
uint64_t cycle = 0;
|
|
|
|
public:
|
|
Tracer(T *top, std::filesystem::path wavefile) {
|
|
top = top;
|
|
Verilated::traceEverOn(true);
|
|
m_trace = std::make_unique<VerilatedVcdC>();
|
|
top->trace(m_trace.get(), 5);
|
|
m_trace->open(wavefile.c_str());
|
|
}
|
|
~Tracer() { m_trace->close(); }
|
|
|
|
/**
|
|
* Dump signals to waveform file. Must be called once after every top->eval()
|
|
* call.
|
|
*/
|
|
void update() { m_trace->dump(cycle++); }
|
|
};
|
|
|
|
template <typename T> class VlModuleInterfaceCommon : public T {
|
|
uint64_t sim_time = 0;
|
|
uint64_t posedge_cnt = 0;
|
|
std::unique_ptr<Tracer<T>> tracer;
|
|
|
|
public:
|
|
VlModuleInterfaceCommon<T>(bool do_trace,
|
|
std::filesystem::path wavefile = "waveform.vcd") {
|
|
if (do_trace)
|
|
tracer = std::make_unique<Tracer<T>>(this, wavefile);
|
|
}
|
|
void eval() {
|
|
if (this->is_posedge()) {
|
|
posedge_cnt++;
|
|
}
|
|
T::clock = !T::clock;
|
|
sim_time++;
|
|
T::eval();
|
|
if (tracer)
|
|
tracer->update();
|
|
}
|
|
void eval(int n) {
|
|
for (int i = 0; i < n; i++) {
|
|
this->eval();
|
|
}
|
|
}
|
|
void reset_eval(int n) {
|
|
this->reset = 1;
|
|
this->eval(n);
|
|
this->reset = 0;
|
|
}
|
|
bool is_posedge() {
|
|
// Will be posedge when eval is called
|
|
return T::clock == 0;
|
|
}
|
|
};
|
|
|
|
#endif
|