61 lines
1.2 KiB
C++
61 lines
1.2 KiB
C++
#include <stdio.h>
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#include <stdlib.h>
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#include "verilated.h"
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#include "verilated_vcd_c.h"
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#include "Vtop.h"
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void tick(int tickcount, Vtop *tb, VerilatedVcdC* tfp) {
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tb->eval();
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if (tfp)
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tfp->dump(tickcount * 10 - 2);
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tb->i_clk = 1;
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tb->eval();
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if (tfp)
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tfp->dump(tickcount * 10);
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tb->i_clk = 0;
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tb->eval();
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if (tfp) {
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tfp->dump(tickcount * 10 + 5);
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tfp->flush();
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}
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}
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int main(int argc, char **argv) {
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// Call commandArgs first!
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Verilated::commandArgs(argc, argv);
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// Instantiate our design
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Vtop *tb = new Vtop;
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Verilated::traceEverOn(true);
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VerilatedVcdC* tfp = new VerilatedVcdC;
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tb->trace(tfp, 99);
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tfp->open("build/waveform.vcd");
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int last_led, last_state = 0, state = 0;
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printf("Initial state is: 0x%02x\n", tb->o_led);
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unsigned tickcount = 0;
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last_led = tb->o_led;
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tb->i_request = 1;
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for (int k = 0; k < 4; k++) {
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tick(++tickcount, tb, tfp);
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}
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tick(++tickcount, tb, tfp);
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tb->i_request = 0;
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tick(++tickcount, tb, tfp);
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tb->i_request = 1;
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for(int k=0; k<(1 << 16); k++) {
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tick(++tickcount, tb, tfp);
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// if (last_led != tb->o_led) {
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// printf("k = %7d, led = %d\n", k, tb->o_led);
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// }
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last_led = tb->o_led;
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}
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}
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