const { START_OF_DISPLAY_MEM } = require('./machine.config');

exports.printDisplay = (mem) => {
  const disp = START_OF_DISPLAY_MEM;
  for (let i = disp; i < disp + 16; i += 4) {
    console.log(`${pad(mem[i])} ${pad(mem[i+1])} ${pad(mem[i+2])} ${pad(mem[i+3])}`);
  }
}

const num2hex = (num) => num.toString(16).toUpperCase().padStart(2, "0");

function pad(n) {
  return n.toString().padStart(3, "0");
};