refactored mw8080 to use BasicZ80ScanlinePlatform
This commit is contained in:
Steven Hugg
parent
9699cea117
commit
d9de3981c9
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@ -141,7 +141,7 @@ if (window.location.host.endsWith('8bitworkshop.com')) {
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<span class="dropdown">
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<a class="btn dropdown-toggle hidden-xs toolbarMenuButton" id="platformsMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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PLATFORMS <span class="caret"></span>
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<span>PLATFORMS</span> <span class="caret"></span>
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</a>
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<ul class="dropdown-menu dropdown-menu-right" aria-labelledby="platformsMenuButton">
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<li class="dropdown dropdown-submenu">
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@ -240,6 +240,12 @@
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"graceful-readlink": ">= 1.0.0"
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}
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},
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"commandpost": {
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"version": "1.4.0",
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"resolved": "https://registry.npmjs.org/commandpost/-/commandpost-1.4.0.tgz",
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"integrity": "sha512-aE2Y4MTFJ870NuB/+2z1cXBhSBBzRydVVjzhFC4gtenEhpnj15yu0qptWGJsO9YGrcPZ3ezX8AWb1VA391MKpQ==",
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"dev": true
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},
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"concat-map": {
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"version": "0.0.1",
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"resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
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@ -324,6 +330,26 @@
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"safer-buffer": "^2.1.0"
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}
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},
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"editorconfig": {
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"version": "0.15.3",
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"resolved": "https://registry.npmjs.org/editorconfig/-/editorconfig-0.15.3.tgz",
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"integrity": "sha512-M9wIMFx96vq0R4F+gRpY3o2exzb8hEj/n9S8unZtHSvYjibBp/iMufSzvmOcV/laG0ZtuTVGtiJggPOSW2r93g==",
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"dev": true,
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"requires": {
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"commander": "^2.19.0",
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"lru-cache": "^4.1.5",
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"semver": "^5.6.0",
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"sigmund": "^1.0.1"
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},
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"dependencies": {
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"commander": {
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"version": "2.20.0",
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"resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
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"integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
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"dev": true
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}
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}
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},
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"encoding": {
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"version": "0.1.12",
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"resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.12.tgz",
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@ -669,6 +695,16 @@
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"integrity": "sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=",
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"dev": true
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},
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"lru-cache": {
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"version": "4.1.5",
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"resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
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"integrity": "sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==",
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"dev": true,
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"requires": {
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"pseudomap": "^1.0.2",
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"yallist": "^2.1.2"
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}
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},
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"lzg": {
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"version": "1.0.0",
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"resolved": "https://registry.npmjs.org/lzg/-/lzg-1.0.0.tgz",
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@ -903,6 +939,12 @@
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"integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
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"dev": true
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},
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"pseudomap": {
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"version": "1.0.2",
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"resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
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"integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
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"dev": true
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},
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"psl": {
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"version": "1.1.31",
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"resolved": "https://registry.npmjs.org/psl/-/psl-1.1.31.tgz",
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@ -1014,6 +1056,18 @@
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"integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
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"dev": true
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},
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"semver": {
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"version": "5.7.0",
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"resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
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"integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==",
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"dev": true
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},
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"sigmund": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/sigmund/-/sigmund-1.0.1.tgz",
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"integrity": "sha1-P/IfGYytIXX587eBhT/ZTQ0ZtZA=",
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"dev": true
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},
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"source-map": {
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"version": "0.6.1",
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"resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
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@ -1120,6 +1174,16 @@
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"integrity": "sha512-Y21Xqe54TBVp+VDSNbuDYdGw0BpoR/Q6wo/+35M8PAU0vipahnyduJWirxxdxjsAkS7hue53x2zp8gz7F05u0A==",
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"dev": true
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},
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"typescript-formatter": {
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"version": "7.2.2",
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"resolved": "https://registry.npmjs.org/typescript-formatter/-/typescript-formatter-7.2.2.tgz",
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"integrity": "sha512-V7vfI9XArVhriOTYHPzMU2WUnm5IMdu9X/CPxs8mIMGxmTBFpDABlbkBka64PZJ9/xgQeRpK8KzzAG4MPzxBDQ==",
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"dev": true,
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"requires": {
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"commandpost": "^1.0.0",
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"editorconfig": "^0.15.0"
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}
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},
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"uri-js": {
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"version": "4.2.2",
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"resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
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@ -1231,6 +1295,12 @@
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"resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-1.3.1.tgz",
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"integrity": "sha512-tGkGJkN8XqCod7OT+EvGYK5Z4SfDQGD30zAa58OcnAa0RRWgzUEK72tkXhsX1FZd+rgnhRxFtmO+ihkp8LHSkw==",
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"dev": true
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},
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"yallist": {
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"version": "2.1.2",
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"resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
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"integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
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"dev": true
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}
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}
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}
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@ -1091,6 +1091,7 @@ export abstract class BasicZ80ScanlinePlatform extends BaseZ80Platform {
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timer;
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audio;
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psg;
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pixels : Uint32Array;
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inputs = new Uint8Array(16);
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mainElement : HTMLElement;
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@ -1117,6 +1118,7 @@ export abstract class BasicZ80ScanlinePlatform extends BaseZ80Platform {
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this.cpu = this.newCPU(this.membus, this.iobus);
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this.video = new RasterVideo(this.mainElement, this.canvasWidth, this.numVisibleScanlines, this.getVideoOptions());
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this.video.create();
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this.pixels = this.video.getFrameData();
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setKeyboardFromMap(this.video, this.inputs, this.getKeyboardMap(), this.getKeyboardFunction());
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this.timer = new AnimationTimer(60, this.nextFrame.bind(this));
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}
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@ -1,200 +1,154 @@
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"use strict";
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import { Platform, BaseZ80Platform } from "../baseplatform";
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import { Platform, BasicZ80ScanlinePlatform, BaseZ80Platform } from "../baseplatform";
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import { PLATFORMS, RAM, newAddressDecoder, padBytes, noise, setKeyboardFromMap, AnimationTimer, RasterVideo, Keys, makeKeycodeMap } from "../emu";
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import { hex } from "../util";
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// http://www.computerarcheology.com/Arcade/
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const MW8080BW_PRESETS = [
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{id:'gfxtest.c', name:'Graphics Test'},
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{id:'shifter.c', name:'Sprite w/ Bit Shifter'},
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{id:'game2.c', name:'Cosmic Impalas'},
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{ id: 'gfxtest.c', name: 'Graphics Test' },
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{ id: 'shifter.c', name: 'Sprite w/ Bit Shifter' },
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{ id: 'game2.c', name: 'Cosmic Impalas' },
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];
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const _Midway8080BWPlatform = function(mainElement) {
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const SPACEINV_KEYCODE_MAP = makeKeycodeMap([
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[Keys.VK_SPACE, 1, 0x10], // P1
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[Keys.VK_LEFT, 1, 0x20],
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[Keys.VK_RIGHT, 1, 0x40],
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[Keys.VK_S, 2, 0x10], // P2
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[Keys.VK_A, 2, 0x20],
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[Keys.VK_D, 2, 0x40],
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[Keys.VK_5, 1, 0x1],
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[Keys.VK_1, 1, 0x4],
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[Keys.VK_2, 1, 0x2],
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]);
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var cpu, ram, membus, iobus, rom;
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var probe;
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var video, timer, pixels, displayPCs;
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var inputs = [0xe,0x8,0x0];
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var bitshift_offset = 0;
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var bitshift_register = 0;
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var watchdog_counter;
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const cpuFrequency = 1996800;
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const cpuCyclesPerLine = cpuFrequency/(60*224); // TODO
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const INITIAL_WATCHDOG = 256;
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const PIXEL_ON = 0xffeeeeee;
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const PIXEL_OFF = 0xff000000;
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const INITIAL_WATCHDOG = 256;
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const PIXEL_ON = 0xffeeeeee;
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const PIXEL_OFF = 0xff000000;
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const SPACEINV_KEYCODE_MAP = makeKeycodeMap([
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[Keys.VK_SPACE, 1, 0x10], // P1
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[Keys.VK_LEFT, 1, 0x20],
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[Keys.VK_RIGHT, 1, 0x40],
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[Keys.VK_S, 2, 0x10], // P2
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[Keys.VK_A, 2, 0x20],
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[Keys.VK_D, 2, 0x40],
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[Keys.VK_5, 1, 0x1],
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[Keys.VK_1, 1, 0x4],
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[Keys.VK_2, 1, 0x2],
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]);
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class Midway8080BWPlatform extends BaseZ80Platform implements Platform {
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getPresets() {
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return MW8080BW_PRESETS;
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}
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class Midway8080BWPlatform extends BasicZ80ScanlinePlatform implements Platform {
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cpuFrequency = 1996800; // MHz
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canvasWidth = 256;
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numTotalScanlines = 262;
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numVisibleScanlines = 224;
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defaultROMSize = 0x2000;
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start = function() {
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ram = new RAM(0x2000);
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//displayPCs = new Uint16Array(new ArrayBuffer(0x2000*2));
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membus = {
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bitshift_offset = 0;
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bitshift_register = 0;
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watchdog_counter;
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getPresets() { return MW8080BW_PRESETS; }
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getKeyboardMap() { return SPACEINV_KEYCODE_MAP; }
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getVideoOptions() { return { rotate: -90 }; }
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newRAM() { return new Uint8Array(0x2000); }
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newMembus() {
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return {
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read: newAddressDecoder([
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[0x0000, 0x1fff, 0x1fff, function(a) { return rom ? rom[a] : 0; }],
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[0x2000, 0x3fff, 0x1fff, function(a) { return ram.mem[a]; }],
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]),
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write: newAddressDecoder([
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[0x2000, 0x23ff, 0x3ff, function(a,v) { ram.mem[a] = v; }],
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[0x2400, 0x3fff, 0x1fff, function(a,v) {
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ram.mem[a] = v;
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var ofs = (a - 0x400)<<3;
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for (var i=0; i<8; i++)
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pixels[ofs+i] = (v & (1<<i)) ? PIXEL_ON : PIXEL_OFF;
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if (displayPCs) displayPCs[a] = cpu.getPC(); // save program counter
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}],
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]),
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[0x0000, 0x1fff, 0x1fff, (a) => { return this.rom ? this.rom[a] : 0; }],
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[0x2000, 0x3fff, 0x1fff, (a) => { return this.ram[a]; }],
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]),
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write: newAddressDecoder([
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[0x2000, 0x23ff, 0x3ff, (a, v) => { this.ram[a] = v; }],
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[0x2400, 0x3fff, 0x1fff, (a, v) => {
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this.ram[a] = v;
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var ofs = (a - 0x400) << 3;
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for (var i = 0; i < 8; i++) {
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this.pixels[ofs + i] = (v & (1 << i)) ? PIXEL_ON : PIXEL_OFF;
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}
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//if (displayPCs) displayPCs[a] = cpu.getPC(); // save program counter
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}],
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]),
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isContended: function() { return false; },
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};
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iobus = {
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read: function(addr) {
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addr &= 0x3;
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}
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newIOBus() {
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return {
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read: (addr) => {
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addr &= 0x3;
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//console.log('IO read', hex(addr,4));
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switch (addr) {
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case 0:
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case 1:
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case 2:
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return inputs[addr];
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return this.inputs[addr];
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case 3:
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return (bitshift_register >> (8-bitshift_offset)) & 0xff;
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return (this.bitshift_register >> (8 - this.bitshift_offset)) & 0xff;
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}
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return 0;
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},
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write: function(addr, val) {
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addr &= 0x7;
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val &= 0xff;
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},
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write: (addr, val) => {
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addr &= 0x7;
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val &= 0xff;
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//console.log('IO write', hex(addr,4), hex(val,2));
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switch (addr) {
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case 2:
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bitshift_offset = val & 0x7;
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this.bitshift_offset = val & 0x7;
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break;
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case 3:
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case 5:
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// TODO: sound
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break;
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case 4:
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bitshift_register = (bitshift_register >> 8) | (val << 8);
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this.bitshift_register = (this.bitshift_register >> 8) | (val << 8);
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break;
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case 6:
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watchdog_counter = INITIAL_WATCHDOG;
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this.watchdog_counter = INITIAL_WATCHDOG;
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break;
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}
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}
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}
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};
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cpu = this.newCPU(membus, iobus);
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video = new RasterVideo(mainElement,256,224,{rotate:-90});
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video.create();
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}
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startScanline(sl: number) {
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}
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drawScanline(sl: number) {
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// at end of scanline
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if (sl == 95)
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this.cpu.requestInterrupt(0x8); // RST $8
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else if (sl == 223)
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this.cpu.requestInterrupt(0x10); // RST $10
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}
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advance(novideo: boolean) {
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super.advance(novideo);
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if (this.watchdog_counter-- <= 0) {
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console.log("WATCHDOG FIRED"); // TODO: alert on video
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this.reset();
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}
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}
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loadState(state) {
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super.loadState(state);
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this.bitshift_register = state.bsr;
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this.bitshift_offset = state.bso;
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this.watchdog_counter = state.wdc;
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}
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saveState() {
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var state: any = super.saveState();
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state.bsr = this.bitshift_register;
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state.bso = this.bitshift_offset;
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state.wdc = this.watchdog_counter;
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return state;
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}
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reset() {
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super.reset();
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this.watchdog_counter = INITIAL_WATCHDOG;
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}
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}
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/*
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$(video.canvas).click(function(e) {
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var x = Math.floor(e.offsetX * video.canvas.width / $(video.canvas).width());
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var y = Math.floor(e.offsetY * video.canvas.height / $(video.canvas).height());
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var addr = (x>>3) + (y*32) + 0x400;
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if (displayPCs) console.log(x, y, hex(addr,4), "PC", hex(displayPCs[addr],4));
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});
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var idata = video.getFrameData();
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setKeyboardFromMap(video, inputs, SPACEINV_KEYCODE_MAP);
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pixels = video.getFrameData();
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timer = new AnimationTimer(60, this.nextFrame.bind(this));
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}
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*/
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readAddress(addr) {
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return membus.read(addr);
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}
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advance(novideo : boolean) {
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for (var sl=0; sl<224; sl++) {
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this.runCPU(cpu, cpuCyclesPerLine);
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if (sl == 95)
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cpu.requestInterrupt(0x8); // RST $8
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else if (sl == 223)
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cpu.requestInterrupt(0x10); // RST $10
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}
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if (!novideo) {
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video.updateFrame();
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}
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if (watchdog_counter-- <= 0) {
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console.log("WATCHDOG FIRED"); // TODO: alert on video
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this.reset();
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}
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}
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loadROM(title, data) {
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rom = padBytes(data, 0x2000);
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this.reset();
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}
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loadState(state) {
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cpu.loadState(state.c);
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ram.mem.set(state.b);
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bitshift_register = state.bsr;
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bitshift_offset = state.bso;
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watchdog_counter = state.wdc;
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inputs[0] = state.in0;
|
||||
inputs[1] = state.in1;
|
||||
inputs[2] = state.in2;
|
||||
}
|
||||
saveState() {
|
||||
return {
|
||||
c:this.getCPUState(),
|
||||
b:ram.mem.slice(0),
|
||||
bsr:bitshift_register,
|
||||
bso:bitshift_offset,
|
||||
wdc:watchdog_counter,
|
||||
in0:inputs[0],
|
||||
in1:inputs[1],
|
||||
in2:inputs[2],
|
||||
};
|
||||
}
|
||||
loadControlsState(state) {
|
||||
inputs[0] = state.in0;
|
||||
inputs[1] = state.in1;
|
||||
inputs[2] = state.in2;
|
||||
}
|
||||
saveControlsState() {
|
||||
return {
|
||||
in0:inputs[0],
|
||||
in1:inputs[1],
|
||||
in2:inputs[2],
|
||||
};
|
||||
}
|
||||
getCPUState() {
|
||||
return cpu.saveState();
|
||||
}
|
||||
|
||||
isRunning() {
|
||||
return timer && timer.isRunning();
|
||||
}
|
||||
pause() {
|
||||
timer.stop();
|
||||
}
|
||||
resume() {
|
||||
timer.start();
|
||||
}
|
||||
reset() {
|
||||
cpu.reset();
|
||||
cpu.setTstates(0);
|
||||
watchdog_counter = INITIAL_WATCHDOG;
|
||||
}
|
||||
}
|
||||
return new Midway8080BWPlatform();
|
||||
}
|
||||
|
||||
PLATFORMS['mw8080bw'] = _Midway8080BWPlatform;
|
||||
PLATFORMS['mw8080bw'] = Midway8080BWPlatform;
|
||||
|
|
|
|||
|
|
@ -1842,6 +1842,7 @@ export function startUI(loadplatform : boolean) {
|
|||
platform_id = qs['platform'] = "vcs";
|
||||
}
|
||||
$("#item_platform_"+platform_id).addClass("dropdown-item-checked");
|
||||
$("#platform_name").text(platform_id);
|
||||
setupSplits();
|
||||
// create store
|
||||
store_id = repo_id || getBasePlatform(platform_id);
|
||||
|
|
|
|||
Loading…
Reference in New Issue