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// Verilated -*- C++ -*-
// DESCRIPTION: Verilator output: main() simulation loop, created with --main
// Edited and completed to view contents.
#include "Vcomputer___024root.h"
#include "Vcomputer_computer.h"
#include "Vcomputer_my_mem__D10_DB10000.h"
#include "verilated.h"
#include "Vcomputer.h"
#include <cinttypes>
#include <cstdint>
#include <cstdio>
#include <sched.h>
//======================
int main(int argc, char** argv, char**) {
// Setup context, defaults, and parse command line
Verilated::debug(0);
const std::unique_ptr<VerilatedContext> contextp{new VerilatedContext};
contextp->threads(1);
contextp->commandArgs(argc, argv);
// Construct the Verilated model, from Vtop.h generated from Verilating
const std::unique_ptr<Vcomputer> topp{new Vcomputer{contextp.get(), ""}};
if (argc != 2) {
fprintf(stderr, "Usage: %.20s [filename]\n\n", argv[0]);
exit(-1);
}
int i = 0;
puts("Start simulation.");
//topp->computer->clk_in = 0;
topp->clk_in = 0;
FILE* f = fopen(argv[1], "rb");
if (!f) {
fprintf(stderr, "Program file %.20s not found.\n", argv[1]);
exit(-1);
}
fseek(f, 0, SEEK_END);
long fpos = ftell(f);
fseek(f, 0, SEEK_SET);
size_t bytes_read = fread(
topp->computer->ROM->r_datastore.m_storage,
2,
fpos/2,
f
);
if (bytes_read * 2 != fpos) {
fputs("Couldn't read program file completely.", stderr);
exit(-1);
}
while (VL_LIKELY(!contextp->gotFinish()) && i < 100) {
//topp->computer->clk_in = ~topp->computer->clk_in;
topp->clk_in = !topp->clk_in;
//uint16_t opcode = (topp->computer->PC_content_int & 0xff) << 8 | (topp->computer->PC_content_int >> 8);
uint16_t opcode = topp->computer->PC_content_int;
printf(
"CLK1: %4d, CLK2: %4d, PC: @0x%04X, INS: 0x%04X\n",
topp->clk_in,
topp->computer->clk_in,
topp->computer->PC_addr_int,
opcode
);
// This is fucking dirty
{
char command[128];
snprintf(command, sizeof(command) - 1, "python3 ../assembler/disas_ins.py %04X", opcode);
char buffer[256];
FILE* pipe = popen(command, "r");
if (!pipe) {
perror("popen failed");
exit(-1);
}
if (fgets(buffer, sizeof(buffer), pipe) != NULL) {
printf("%s", buffer);
}
(void) pclose(pipe);
}
printf(
" A: 0x%04X, D: 0x%04X, M: 0x%04X, RES: 0x%04X\n",
topp->computer->reg_A_int,
topp->computer->reg_D_int,
topp->computer->reg_pA_int,
topp->computer->result_int
);
printf(
" A: %5" PRId16 ", D: %5" PRId16 ", M: %5" PRId16 ", RES: %5" PRId16 "\n",
topp->computer->reg_A_int,
topp->computer->reg_D_int,
topp->computer->reg_pA_int,
topp->computer->result_int
);
// Evaluate model
topp->eval();
// Advance time
contextp->timeInc(1);
i++;
puts("-----");
}
puts("Simulation finished");
if (VL_LIKELY(!contextp->gotFinish())) {
VL_DEBUG_IF(VL_PRINTF("+ Exiting without $finish; no events left\n"););
}
// Execute 'final' processes
topp->final();
// Print statistical summary report
//contextp->statsPrintSummary();
return 0;
}
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