nes-emu/apu/registers/index.js

A NES emulator

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.APURegisterSegment = void 0;
var _PulseControl = _interopRequireDefault(require("./PulseControl"));
var _PulseSweep = _interopRequireDefault(require("./PulseSweep"));
var _PulseTimerLow = _interopRequireDefault(require("./PulseTimerLow"));
var _PulseLCLTimerHigh = _interopRequireDefault(require("./PulseLCLTimerHigh"));
var _TriangleLinearLCL = _interopRequireDefault(require("./TriangleLinearLCL"));
var _TriangleTimerLow = _interopRequireDefault(require("./TriangleTimerLow"));
var _TriangleLCLTimerHigh = _interopRequireDefault(require("./TriangleLCLTimerHigh"));
var _NoiseControl = _interopRequireDefault(require("./NoiseControl"));
var _NoiseForm = _interopRequireDefault(require("./NoiseForm"));
var _NoiseLCL = _interopRequireDefault(require("./NoiseLCL"));
var _DMCControl = _interopRequireDefault(require("./DMCControl"));
var _DMCLoad = _interopRequireDefault(require("./DMCLoad"));
var _DMCSampleAddress = _interopRequireDefault(require("./DMCSampleAddress"));
var _DMCSampleLength = _interopRequireDefault(require("./DMCSampleLength"));
var _APUStatus = _interopRequireDefault(require("./APUStatus"));
var _APUControl = _interopRequireDefault(require("./APUControl"));
var _APUFrameCounter = _interopRequireDefault(require("./APUFrameCounter"));
var _memory = require("../../memory");
var _registers = require("../../registers");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/** A collection of all the CPU-mapped APU registers. */
class APURegisterSegment {
  constructor(context) {
    this.pulses = [0, 1].map(id => ({
      control: new _PulseControl.default(id).loadContext(context),
      //              $4000/$4004
      sweep: new _PulseSweep.default(id).loadContext(context),
      //                  $4001/$4005
      timerLow: new _PulseTimerLow.default(id).loadContext(context),
      //            $4002/$4006
      lclTimerHigh: new _PulseLCLTimerHigh.default(id).loadContext(context) //     $4003/$4007
    }));
    this.triangle = {
      linearLCL: new _TriangleLinearLCL.default().loadContext(context),
      //         $4008
      timerLow: new _TriangleTimerLow.default().loadContext(context),
      //           $400A
      lclTimerHigh: new _TriangleLCLTimerHigh.default().loadContext(context) //    $400B
    };
    this.noise = {
      control: new _NoiseControl.default().loadContext(context),
      //                $400C
      form: new _NoiseForm.default().loadContext(context),
      //                      $400E
      lcl: new _NoiseLCL.default().loadContext(context) //                         $400F
    };
    this.dmc = {
      control: new _DMCControl.default().loadContext(context),
      //                  $4010
      load: new _DMCLoad.default().loadContext(context),
      //                        $4011
      sampleAddress: new _DMCSampleAddress.default().loadContext(context),
      //      $4012
      sampleLength: new _DMCSampleLength.default().loadContext(context) //         $4013
    };
    this.apuStatus = new _APUStatus.default().loadContext(context); //             $4015 (read)
    this.apuControl = new _APUControl.default().loadContext(context); //           $4015 (write)
    this.apuFrameCounter = new _APUFrameCounter.default().loadContext(context); // $4017

    this.apuMain = new _registers.MixedInMemoryRegister(this.apuStatus, this.apuControl); // ($4015)
  }

  /** Creates a memory segment with the first 20 bytes ($4000-$4013). */
  toMemory() {
    return _memory.WithCompositeMemory.createSegment([this.pulses[0].control, this.pulses[0].sweep, this.pulses[0].timerLow, this.pulses[0].lclTimerHigh, this.pulses[1].control, this.pulses[1].sweep, this.pulses[1].timerLow, this.pulses[1].lclTimerHigh, this.triangle.linearLCL, new _memory.MemoryPadding(1), this.triangle.timerLow, this.triangle.lclTimerHigh, this.noise.control, new _memory.MemoryPadding(1), this.noise.form, this.noise.lcl, this.dmc.control, this.dmc.load, this.dmc.sampleAddress, this.dmc.sampleLength]);
  }
}
exports.APURegisterSegment = APURegisterSegment;