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Author: Undefined01

projects/soc/csrc/emu.h

@@ -18,7 +18,10 @@ class Emulator
     parseArgs(argc, argv);
 
     if (args.image == nullptr)
-      throw "Image file unspecified. Use -i to provide the image of flash";
+    {
+      printf("Image file unspecified. Use -i to provide the image of flash");
+      exit(1);
+    }
     printf("Initializing flash with \"%s\" ...\n", args.image);
     flash_init(args.image);
 
@@ -39,7 +42,7 @@ class Emulator
     if (args.dump_wave)
     {
       Verilated::traceEverOn(true);
-      printf("Enabling waves ...\n");
+      printf("`dump-wave` enabled, waves will be written to \"vlt_dump.vcd\".\n");
       fp = new VerilatedVcdC;
       dut_ptr->trace(fp, 1);
       fp->open("vlt_dump.vcd");
@@ -66,6 +69,11 @@ class Emulator
     dut_ptr->eval();
   }
 
+  unsigned long long get_cycle()
+  {
+    return cycle;
+  }
+
 private:
   void parseArgs(int argc, char *argv[])
   {
@@ -124,6 +132,7 @@ class Emulator
   }
 
   unsigned long long cycle = 0;
+
   struct Args
   {
     bool dump_wave = false;

projects/soc/csrc/main.cpp

@@ -1,5 +1,7 @@
 #include <cstdio>
-#include <signal.h>
+#include <csignal>
+#include <chrono>
+namespace chrono = std::chrono;
 
 #include "verilated.h" //Defines common routines
 #include "VysyxSoCFull.h"
@@ -13,17 +15,24 @@ void sig_handler(int signo)
     if (signal_received != 0)
     {
         puts("SIGINT received, forcely shutting down.\n");
-        _exit(0);
+        exit(0);
     }
     puts("SIGINT received, gracefully shutting down... Type Ctrl+C again to stop forcely.\n");
     signal_received = signo;
 }
 
 static Emulator *emu = nullptr;
+chrono::system_clock::time_point sim_start_time;
 void release()
 {
     if (emu != nullptr)
+    {
+        auto elapsed = chrono::duration_cast<chrono::seconds>(chrono::system_clock::now() - sim_start_time);
+        printf("Simulated %llu cycles in %lds\n",
+               emu->get_cycle(),
+               elapsed.count());
         delete emu;
+    }
 }
 
 int main(int argc, char *argv[])
@@ -38,6 +47,7 @@ int main(int argc, char *argv[])
 
     emu = new Emulator(argc, argv);
     printf("Start simulating ...\n");
+    sim_start_time = chrono::system_clock::now();
     while (!Verilated::gotFinish() && signal_received == 0)
     {
         emu->step();