nes-emu/cpu/registers/FlagsRegister.spec.js

A NES emulator

"use strict";

var _FlagsRegister = _interopRequireDefault(require("./FlagsRegister"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const should = require("chai").Should();
describe("registers", () => {
  describe("FlagsRegister", () => {
    it("can load the flags from a byte", () => {
      new _FlagsRegister.default().load(0b00111010).should.include({
        n: false,
        v: false,
        d: true,
        i: false,
        z: true,
        c: false
      });
    });
    it("can encode itself into a byte", () => {
      const flags = new _FlagsRegister.default();
      flags.d = true;
      flags.z = true;
      flags.toByte().should.equal(0b00101010);
    });
  });
});