broken-neees
Version:
A really broken NEEES emulator that introduces glitches and random bugs on purpose!
143 lines (136 loc) • 9.26 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _byte = _interopRequireDefault(require("./byte"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
/** An 8-bit register with multiple status flags and values mapped to memory. */
var InMemoryRegister = /*#__PURE__*/function () {
function InMemoryRegister() {
_classCallCheck(this, InMemoryRegister);
this.value = 0;
this._readOnlyFields = [];
this.onLoad();
}
/** Called when instantiating the register. */
_createClass(InMemoryRegister, [{
key: "onLoad",
value: function onLoad() {}
/** Called when the CPU reads the memory address. */
}, {
key: "onRead",
value: function onRead() {
return 0;
}
/** Called when the CPU writes the memory address. */
}, {
key: "onWrite",
value: function onWrite(value) {}
/** Sets the value manually (updating internal accessors). */
}, {
key: "setValue",
value: function setValue(value) {
this.value = _byte.default.toU8(value);
this._writeReadOnlyFields();
}
/** Adds a read-only field of `size` bits named `name`, starting at `startPosition`. */
}, {
key: "addField",
value: function addField(name, startPosition) {
var size = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
this._readOnlyFields.push({
name: name,
startPosition: startPosition,
size: size
});
this[name] = 0;
return this;
}
/** Adds a writable field of `size` bits named `name`, starting at `startPosition`. */
}, {
key: "addWritableField",
value: function addWritableField(name, startPosition) {
var size = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
Object.defineProperty(this, name, {
get: function get() {
return _byte.default.getBits(this.value, startPosition, size);
},
set: function set(value) {
this.value = _byte.default.toU8(_byte.default.setBits(this.value, startPosition, size, value));
}
});
return this;
}
}, {
key: "_writeReadOnlyFields",
value: function _writeReadOnlyFields() {
var _iterator = _createForOfIteratorHelper(this._readOnlyFields),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var _step$value = _step.value,
name = _step$value.name,
startPosition = _step$value.startPosition,
size = _step$value.size;
this[name] = _byte.default.getBits(this.value, startPosition, size);
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
}
}], [{
key: "PPU",
get: function get() {
return /*#__PURE__*/function (_InMemoryRegister) {
_inherits(PPUInMemoryRegister, _InMemoryRegister);
var _super = _createSuper(PPUInMemoryRegister);
function PPUInMemoryRegister(ppu) {
var _this;
_classCallCheck(this, PPUInMemoryRegister);
_this = _super.call(this);
_this.ppu = ppu;
return _this;
}
return _createClass(PPUInMemoryRegister);
}(InMemoryRegister);
}
}, {
key: "APU",
get: function get() {
return /*#__PURE__*/function (_InMemoryRegister2) {
_inherits(APUInMemoryRegister, _InMemoryRegister2);
var _super2 = _createSuper(APUInMemoryRegister);
function APUInMemoryRegister(apu, id) {
var _this2;
_classCallCheck(this, APUInMemoryRegister);
_this2 = _super2.call(this);
_this2.apu = apu;
_this2.id = id;
return _this2;
}
return _createClass(APUInMemoryRegister);
}(InMemoryRegister);
}
}]);
return InMemoryRegister;
}();
exports.default = InMemoryRegister;