Add testbench

diff --git a/ram.hex b/ram.hex
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diff --git a/testbench.cpp b/testbench.cpp
new file mode 100644 (file)
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+++ b/testbench.cpp
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+#include "Vsystem.h"
+#include <stdio.h>
+
+Vsystem *top;
+
+unsigned int main_time = 0;
+
+double sc_time_stamp ()
+{
+       return main_time;
+}
+
+int main()
+{
+       top = new Vsystem;
+       
+       top->clk = 0;
+       while (!Verilated::gotFinish())
+       {
+               top->clk = !top->clk;
+               
+               top->eval();
+//             if (top->clk == 1)
+//                     printf("%d: Bubble: %d. PC: %08x. Ins'n: %08x\n", main_time/2, top->bubbleshield, top->pc, top->insn);
+               
+               main_time++;
+       }
+}