92 lines
1.5 KiB
C++
92 lines
1.5 KiB
C++
#include <memory>
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#include <limits>
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#include <cstdint>
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#include <cstring>
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#include <cstdlib>
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#include <iostream>
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#include <random>
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#include <unistd.h>
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#include <verilated.h>
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#include "Vraster_sim.h"
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using ModType = Vram_fifo;
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ModType *mod;
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uint32_t main_time = 0;
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static void run_clock() {
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for (int i = 0; i < 2; i++) {
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mod->clk = !mod->clk;
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mod->eval();
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main_time++;
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}
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}
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static void cleanup_exit() {
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mod->final();
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delete mod;
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}
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static void init(int argc, char **argv) {
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Verilated::commandArgs(argc, argv);
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Verilated::traceEverOn(true);
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mod = new ModType;
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mod->clk = 0;
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atexit(cleanup_exit);
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}
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static void push(uint32_t v) {
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if (mod->full) {
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fprintf(stderr, "Fifo full at push %d\n", i);
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exit(1);
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}
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mod->in_dat = v;
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mod->write_enable = 1;
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while (!mod->write_fin)
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run_clock();
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mod->write_enable = 0;
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run_clock();
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}
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static void pop(int i) {
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if (mod->empty) {
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fprintf(stderr, "Fifo empty at pop %d\n", i);
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exit(1);
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}
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mod->read_enable = 1;
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while (!mod->read_fin)
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run_clock();
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mod->read_enable = 0;
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run_clock();
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}
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#define MAX_VALS 32000/24
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uint32_t vals[MAX_VALS];
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int main(int argc, char **argv) {
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init(argc, argv);
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init_values();
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mod->rst = 0;
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mod->read_enable = 0;
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mod->write_enable = 0;
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mod->in_dat = 0;
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run_clock();
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/* Simple test */
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for (int i = 0; i < MAX_VALS; i++) {
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vals[i] = rand() & 0xFFFFFFFFFFFF;
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push(vals[i], i);
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}
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for (int i = 0; i < MAX_VALS; i++) {
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pop(i);
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if (mod->out_dat != vals[i]) {
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fprintf(stderr, "expect %u, %u\n", vals[i], mod->out_dat);
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return 1;
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}
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}
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return 0;
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}
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