main.cpp

#include "Processor.h"
#include <iostream>
#include <string>

// argc = argument count of argument passed through terminal
// argv = argument vector = array of strings = argument passed through terminal

using namespace std;
int main(int argc, char *argv[]) {

  if (argc < 2) {
    cerr << "Usage: ./main <filename.s> [-cycles N]\n";
    return 1; // return error code
  }

  int max_cycles = -1;
  if (argc == 4 && string(argv[2]) == "-cycles") {
    max_cycles = stoi(argv[3]);
  }

  ProcessorConfig config;
  Processor cpu = Processor(config);

  try {
    cpu.loadProgram(argv[1]);
  } catch (...) {
    cerr << "Failed to parse instruction file.\n";
    return 1;
  }

  int cycle_count = 0;
  while (cpu.step()) {
    cycle_count++;
    if (max_cycles != -1 && cycle_count == max_cycles) {
      cout << "[!] Execution halted at cycle limit: " << max_cycles << "\n";
      break;
    }
  }

  if (max_cycles == -1) {
    if (cpu.exception) {
      cout << "[+] Execution halted due to exception after "
           << cpu.clock_cycle << " cycles.\n";
    } else {
      cout << "[+] Execution complete naturally in " << cpu.clock_cycle
           << " cycles.\n";
    }
  }

  cpu.dumpArchitecturalState();
  for (size_t i = 0; i < cpu.Memory.size(); i++) {
    cout << cpu.Memory[i] << " ";
  }
  cout << endl;
  return 0;
}