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Code Issues Projects Releases Wiki Activity

Convert apple1 to Typescript

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This commit is contained in:
Will Scullin 2023-08-05 21:01:40 -07:00
parent 107d8d7409
commit 59b40b3ac8
2 changed files with 520 additions and 498 deletions
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498
js/apple1.js
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import MicroModal from 'micromodal';
import Apple1IO from './apple1io';
import CPU6502 from './cpu6502';
import Prefs from './prefs';
import RAM from './ram';
import { TextPage } from './canvas1';
import { debug, hup } from './util';
import Basic from './roms/basic';
import Bios from './roms/bios';
import Krusader from './roms/krusader';
import ACI from './cards/aci';
import { mapKeyEvent, KeyBoard } from './ui/keyboard';
var DEBUG=false;
var TRACE=true;
var skidmarks = [];
var focused = false;
var startTime = Date.now();
var lastCycles = 0;
var renderedFrames = 0, lastFrames = 0;
var paused = false;
var hashtag;
var prefs = new Prefs();
var runTimer = null;
var cpu = new CPU6502();
var krusader = window.location.hash == '#krusader';
var raml, ramh, rom, aci, io, text, keyboard;
// 32K base memory. Should be 0x0f for 4K, 0x1f for 8K, 0x3f for 16K
raml = new RAM(0x00, 0x7f);
text = new TextPage();
text.init();
aci = new ACI(cpu, { progress: function(val) {
document.querySelector('#tape').style.width = val * 100 + 'px';
}});
io = new Apple1IO(text);
if (krusader) {
ramh = null;
rom = new Krusader();
} else {
// ramh = new RAM(0xe0, 0xef); // 4K ACI memory.
ramh = new Basic();
rom = new Bios();
}
keyboard = new KeyBoard('#keyboard', cpu, io, text);
cpu.addPageHandler(raml);
if (ramh) {
cpu.addPageHandler(ramh);
}
cpu.addPageHandler(rom);
cpu.addPageHandler(aci);
cpu.addPageHandler(io);
var showFPS = false;
//aci.setData([0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88])
//aci.setData([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07])
//aci.setData([0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef])
//aci.setData(tapes['BASIC']);
aci.setData(window.tapes['Microchess'].tracks);
// Audio Buffer Source
var context;
if (typeof window.webkitAudioContext !== 'undefined') {
context = new window.webkitAudioContext();
} else if (typeof window.AudioContext !== 'undefined') {
context = new window.AudioContext();
}
export function doLoadLocal(files) {
context.resume();
files = files || document.querySelector('#local_file').files;
if (files.length == 1) {
var file = files[0];
var fileReader = new FileReader();
fileReader.onload = function(ev) {
context.decodeAudioData(
ev.target.result,
function(buffer) {
var buf = [];
var data = buffer.getChannelData(0);
var old = (data[0] > 0.25);
var last = 0;
for (var idx = 1; idx < data.length; idx++) {
var current = (data[idx] > 0.25);
if (current != old) {
var delta = idx - last;
buf.push(parseInt(delta / buffer.sampleRate * 1023000));
old = current;
last = idx;
}
}
aci.buffer = buf;
MicroModal.close('local-modal');
},
function() {
window.alert('Unable to read tape file: ' + file.name);
}
);
};
fileReader.readAsArrayBuffer(file);
}
}
function updateKHz() {
var now = Date.now();
var ms = now - startTime;
var cycles = cpu.cycles();
var delta;
if (showFPS) {
delta = renderedFrames - lastFrames;
var fps = parseInt(delta/(ms/1000));
document.querySelector('#khz').innerHTML = fps + 'fps';
} else {
delta = cycles - lastCycles;
var khz = parseInt(delta/ms);
document.querySelector('#khz').innerHTML = khz + 'KHz';
}
startTime = now;
lastCycles = cycles;
lastFrames = renderedFrames;
}
var loading = false;
var throttling = true;
var turbotape = false;
export function toggleFPS() {
showFPS = !showFPS;
}
export function toggleSpeed()
{
throttling = document.querySelector('#speed_toggle').checked;
if (runTimer) {
run();
}
}
export function setKeyBuffer(text) {
io.paste(text);
}
export function setTurboTape(val) {
turbotape = val;
}
var _requestAnimationFrame =
window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame;
function run(pc) {
if (runTimer) {
clearInterval(runTimer);
}
if (pc) {
cpu.setPC(pc);
}
var ival = 30, step = 1023 * ival, stepMax = step;
if (!throttling) {
ival = 1;
}
var now, last = Date.now();
var runFn = function() {
now = Date.now();
renderedFrames++;
if (_requestAnimationFrame) {
step = (now - last) * 1023;
last = now;
if (step > stepMax) {
step = stepMax;
}
}
if (document.location.hash != hashtag) {
hashtag = document.location.hash;
}
if (!loading) {
if (DEBUG) {
cpu.stepCyclesDebug(TRACE ? 1 : step, function() {
var line = cpu.dumpRegisters() + ' ' + cpu.dumpPC();
if (TRACE) {
debug(line);
} else {
skidmarks.push();
if (skidmarks.length > 256) {
skidmarks.shift();
}
}
});
} else {
cpu.stepCycles(step);
}
text.blit();
}
if (!paused && _requestAnimationFrame) {
_requestAnimationFrame(runFn);
}
};
if (_requestAnimationFrame) {
_requestAnimationFrame(runFn);
} else {
runTimer = setInterval(runFn, ival);
}
}
function stop() {
if (runTimer) {
clearInterval(runTimer);
}
runTimer = null;
}
function reset()
{
cpu.reset();
}
export function loadBinary(bin) {
stop();
for (var idx = 0; idx < bin.length; idx++) {
var pos = bin.start + idx;
cpu.write(pos >> 8, pos & 0xff, bin.data[idx]);
}
run(bin.start);
}
var _key;
function _keydown(evt) {
if (evt.keyCode === 112) {
cpu.reset();
} else if (evt.keyCode === 113) {
if (document.webkitIsFullScreen) {
document.webkitCancelFullScreen();
} else {
var elem = document.getElementById('display');
elem.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
}
} else if (evt.key === 'Shift') {
keyboard.shiftKey(true);
} else if (evt.key == 'Control') {
keyboard.controlKey(true);
} else if (!focused && (!evt.metaKey || evt.ctrlKey)) {
evt.preventDefault();
var key = mapKeyEvent(evt);
if (key != 0xff) {
if (_key != 0xff) io.keyUp();
io.keyDown(key);
_key = key;
}
}
}
function _keyup(evt) {
_key = 0xff;
if (evt.key === 'Shift') {
keyboard.shiftKey(false);
} else if (evt.key === 'Control') {
keyboard.controlKey(false);
} else {
if (!focused) {
io.keyUp();
}
}
}
var _updateScreenTimer = null;
export function updateScreen() {
var green = document.querySelector('#green_screen').checked;
var scanlines = document.querySelector('#show_scanlines').checked;
text.green(green);
text.scanlines(scanlines);
if (!_updateScreenTimer)
_updateScreenTimer =
setInterval(function() {
text.refresh();
clearInterval(_updateScreenTimer);
_updateScreenTimer = null;
}, 100);
}
paused = false;
export function pauseRun(b) {
if (paused) {
run();
b.value = 'Pause';
} else {
stop();
b.value = 'Run';
}
paused = !paused;
}
export function openOptions() {
MicroModal.show('options-modal');
}
export function openLoadText(event) {
if (event && event.altKey) {
MicroModal.show('local-modal');
} else {
MicroModal.show('input-modal');
}
}
export function doLoadText() {
var text = document.querySelector('#text_input').value;
if (!text.indexOf('//Binary')) {
var lines = text.split('\n');
lines.forEach(function(line) {
var parts = line.split(': ');
if (parts.length == 2) {
var addr;
if (parts[0].length > 0) {
addr = parseInt(parts[0], 16);
}
var data = parts[1].split(' ');
for (var idx = 0; idx < data.length; idx++) {
cpu.write(addr >> 8, addr & 0xff, parseInt(data[idx], 16));
addr++;
}
}
});
} else {
io.paste(text);
}
MicroModal.close('input-modal');
}
export function handleDragOver(event) {
event.preventDefault();
event.dataTransfer.dropEffect = 'copy';
}
export function handleDrop(event) {
event.preventDefault();
event.stopPropagation();
var dt = event.dataTransfer;
if (dt.files.length > 0) {
doLoadLocal(dt.files);
}
}
export function handleDragEnd(event) {
var dt = event.dataTransfer;
if (dt.items) {
for (var i = 0; i < dt.items.length; i++) {
dt.items.remove(i);
}
} else {
event.dataTransfer.clearData();
}
}
MicroModal.init();
document.addEventListener('DOMContentLoaded', function() {
hashtag = document.location.hash;
/*
* Input Handling
*/
var canvas = document.getElementById('text');
var context = canvas.getContext('2d');
text.setContext(context);
window.addEventListener('keydown', _keydown);
window.addEventListener('keyup', _keyup);
window.addEventListener('paste', (event) => {
var paste = (event.clipboardData || window.clipboardData).getData('text');
setKeyBuffer(paste);
event.preventDefault();
});
window.addEventListener('copy', (event) => {
event.clipboardData.setData('text/plain', text.getText());
event.preventDefault();
});
document.querySelector('.overscan').addEventListener('paste', function(event) {
io.paste(event.originalEvent.clipboardData().getData('text/plain'));
event.preventDefault();
});
document.querySelectorAll('input,textarea').forEach(function(el) {
el.addEventListener('focus', function() { focused = true; });
});
document.querySelectorAll('input,textarea').forEach(function(el) {
el.addEventListener('blur', function() { focused = false; });
});
keyboard.create();
if (prefs.havePrefs()) {
document.querySelectorAll('input[type=checkbox]').forEach(function(el) {
var val = prefs.readPref(el.id);
if (val != null)
el.checked = JSON.parse(val);
});
document.querySelectorAll('input[type=checkbox]').forEach(function(el) {
el.addEventListener('change', function() {
prefs.writePref(el.id, JSON.stringify(el.checked));
});
});
}
turbotape = document.querySelector('#turbo_tape').checked;
Object.keys(window.tapes).sort().forEach(function(key) {
var option = document.createElement('option');
option.value = key;
option.text = key;
document.querySelector('#tape_select').append(option);
});
function doTapeSelect() {
var tapeId = document.querySelector('#tape_select').value;
var tape = window.tapes[tapeId];
if (!tape) {
document.querySelector('#text_input').value = '';
return;
}
debug('Loading', tapeId);
window.location.hash = tapeId;
reset();
if (turbotape) {
var trackIdx = 0, script = '';
var parts = tape.script.split('\n');
// Ignore part 0 (C100R)
// Split part 1 into ranges
var ranges = parts[1].split(' ');
var idx;
for (idx = 0; idx < ranges.length; idx++) {
var range = ranges[idx].split('.');
var start = parseInt(range[0], 16);
var end = parseInt(range[1], 16);
var track = tape.tracks[trackIdx];
var kdx = 0;
for (var jdx = start; jdx <= end; jdx++) {
cpu.write(jdx >> 8, jdx & 0xff, track[kdx++]);
}
trackIdx++;
}
// Execute parts 2-n
for (idx = 2; idx < parts.length; idx++) {
if (parts[idx]) {
script += parts[idx] + '\n';
}
}
document.querySelector('#text_input').value = script;
} else {
aci.setData(tape.tracks);
document.querySelector('#text_input').value = tape.script;
}
doLoadText();
}
document.querySelector('#tape_select').addEventListener('change', doTapeSelect);
run();
setInterval(updateKHz, 1000);
updateScreen();
var tape = hup();
if (tape) {
openLoadText();
document.querySelector('#tape_select').value = tape;
doTapeSelect();
}
});

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js/apple1.ts Normal file
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import MicroModal from "micromodal";
import Apple1IO from "./apple1io";
import CPU6502 from "./cpu6502";
import Prefs from "./prefs";
import RAM from "./ram";
import { TextPage } from "./canvas1";
import { debug, hup } from "./util";
import Basic from "./roms/basic";
import Bios from "./roms/bios";
import Krusader from "./roms/krusader";
import ACI from "./cards/aci";
import { mapKeyEvent, KeyBoard } from "./ui/keyboard";
import { address, byte } from "./types";
let DEBUG = false;
let TRACE = true;
const skidmarks: string[] = [];
let focused = false;
let startTime = Date.now();
let lastCycles = 0;
let renderedFrames = 0,
lastFrames = 0;
let paused = false;
let hashtag: string | undefined;
const prefs = new Prefs();
let runTimer: ReturnType<typeof setInterval> | null = null;
const cpu = new CPU6502();
var krusader = window.location.hash == "#krusader";
var raml, ramh, rom, aci: ACI, io: Apple1IO, text: TextPage, keyboard: KeyBoard;
// 32K base memory. Should be 0x0f for 4K, 0x1f for 8K, 0x3f for 16K
raml = new RAM(0x00, 0x7f);
text = new TextPage();
text.init();
aci = new ACI(cpu, {
progress: function (val) {
document.querySelector<HTMLElement>("#tape")!.style.width =
val * 100 + "px";
},
});
io = new Apple1IO(text);
if (krusader) {
ramh = null;
rom = new Krusader();
} else {
// ramh = new RAM(0xe0, 0xef); // 4K ACI memory.
ramh = new Basic();
rom = new Bios();
}
keyboard = new KeyBoard("#keyboard", cpu, io, text);
cpu.addPageHandler(raml);
if (ramh) {
cpu.addPageHandler(ramh);
}
cpu.addPageHandler(rom);
cpu.addPageHandler(aci);
cpu.addPageHandler(io);
var showFPS = false;
interface Tape {
script: string;
tracks: number[][];
}
declare global {
interface Window {
tapes: Record<string, Tape>;
}
}
//aci.setData([0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88])
//aci.setData([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07])
//aci.setData([0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef])
//aci.setData(tapes['BASIC']);
aci.setData(window.tapes["Microchess"].tracks);
// Audio Buffer Source
declare global {
interface Window {
webkitAudioContext: AudioContext;
}
}
const AudioContext = window.AudioContext || window.webkitAudioContext;
const context = new AudioContext();
export function doLoadLocal(files: FileList) {
context.resume();
files =
files || document.querySelector<HTMLInputElement>("#local_file")!.files;
if (files.length == 1) {
var file = files[0];
var fileReader = new FileReader();
fileReader.onload = function (ev) {
context.decodeAudioData(
ev.target!.result as ArrayBuffer,
function (buffer) {
var buf = [];
var data = buffer.getChannelData(0);
var old = data[0] > 0.25;
var last = 0;
for (var idx = 1; idx < data.length; idx++) {
var current = data[idx] > 0.25;
if (current != old) {
var delta = idx - last;
buf.push(Math.floor((delta / buffer.sampleRate) * 1023000));
old = current;
last = idx;
}
}
aci.buffer = buf;
MicroModal.close("local-modal");
},
function () {
window.alert("Unable to read tape file: " + file.name);
}
);
};
fileReader.readAsArrayBuffer(file);
}
}
function updateKHz() {
let now = Date.now();
let ms = now - startTime;
let cycles = cpu.getCycles();
let delta: number;
if (showFPS) {
delta = renderedFrames - lastFrames;
var fps = Math.floor(delta / (ms / 1000));
document.querySelector("#khz")!.innerHTML = fps + "fps";
} else {
delta = cycles - lastCycles;
var khz = Math.floor(delta / ms);
document.querySelector("#khz")!.innerHTML = khz + "KHz";
}
startTime = now;
lastCycles = cycles;
lastFrames = renderedFrames;
}
var loading = false;
var throttling = true;
var turbotape = false;
export function toggleFPS() {
showFPS = !showFPS;
}
export function toggleSpeed() {
throttling =
document.querySelector<HTMLInputElement>("#speed_toggle")!.checked;
if (runTimer) {
run();
}
}
export function setKeyBuffer(text: string) {
io.paste(text);
}
export function setTurboTape(val: boolean) {
turbotape = val;
}
function run(pc?: address) {
if (runTimer) {
clearInterval(runTimer);
}
if (pc) {
cpu.setPC(pc);
}
var ival = 30,
step = 1023 * ival,
stepMax = step;
if (!throttling) {
ival = 1;
}
var now,
last = Date.now();
var runFn = function () {
now = Date.now();
renderedFrames++;
step = (now - last) * 1023;
last = now;
if (step > stepMax) {
step = stepMax;
}
if (document.location.hash != hashtag) {
hashtag = document.location.hash;
}
if (!loading) {
if (DEBUG) {
cpu.stepCyclesDebug(TRACE ? 1 : step, function () {
var line = JSON.stringify(cpu.getState());
if (TRACE) {
debug(line);
} else {
skidmarks.push(line);
if (skidmarks.length > 256) {
skidmarks.shift();
}
}
});
} else {
cpu.stepCycles(step);
}
text.blit();
}
if (!paused) {
requestAnimationFrame(runFn);
}
};
requestAnimationFrame(runFn);
}
function stop() {
if (runTimer) {
clearInterval(runTimer);
}
runTimer = null;
}
function reset() {
cpu.reset();
}
declare global {
interface Document {
webkitCancelFullScreen: () => void;
webkitIsFullScreen: boolean;
}
interface Element {
webkitRequestFullScreen: (options?: unknown) => void;
}
}
var _key: byte;
function _keydown(evt: KeyboardEvent) {
if (evt.keyCode === 112) {
cpu.reset();
} else if (evt.keyCode === 113) {
if (document.webkitIsFullScreen) {
document.webkitCancelFullScreen();
} else {
var elem = document.getElementById("display");
elem!.webkitRequestFullScreen();
}
} else if (evt.key === "Shift") {
keyboard.shiftKey(true);
} else if (evt.key == "Control") {
keyboard.controlKey(true);
} else if (!focused && (!evt.metaKey || evt.ctrlKey)) {
evt.preventDefault();
var key = mapKeyEvent(evt);
if (key != 0xff) {
if (_key != 0xff) io.keyUp();
io.keyDown(key);
_key = key;
}
}
}
function _keyup(evt: KeyboardEvent) {
_key = 0xff;
if (evt.key === "Shift") {
keyboard.shiftKey(false);
} else if (evt.key === "Control") {
keyboard.controlKey(false);
} else {
if (!focused) {
io.keyUp();
}
}
}
let _updateScreenTimer: ReturnType<typeof setInterval> | null = null;
export function updateScreen() {
const green =
document.querySelector<HTMLInputElement>("#green_screen")!.checked;
const scanlines =
document.querySelector<HTMLInputElement>("#show_scanlines")!.checked;
text.green(green);
text.scanlines(scanlines);
if (!_updateScreenTimer)
_updateScreenTimer = setInterval(function () {
text.refresh();
if (_updateScreenTimer) {
clearInterval(_updateScreenTimer);
}
_updateScreenTimer = null;
}, 100);
}
paused = false;
export function pauseRun(b: HTMLButtonElement) {
if (paused) {
run();
b.value = "Pause";
} else {
stop();
b.value = "Run";
}
paused = !paused;
}
export function openOptions() {
MicroModal.show("options-modal");
}
export function openLoadText(event?: MouseEvent) {
if (event && event.altKey) {
MicroModal.show("local-modal");
} else {
MicroModal.show("input-modal");
}
}
export function doLoadText() {
var text = document.querySelector<HTMLInputElement>("#text_input")!.value;
if (!text.indexOf("//Binary")) {
var lines = text.split("\n");
lines.forEach(function (line) {
var parts = line.split(": ");
if (parts.length == 2) {
let addr: address = 0;
if (parts[0].length > 0) {
addr = parseInt(parts[0], 16);
}
var data = parts[1].split(" ");
for (var idx = 0; idx < data.length; idx++) {
cpu.write(addr >> 8, addr & 0xff, parseInt(data[idx], 16));
addr++;
}
}
});
} else {
io.paste(text);
}
MicroModal.close("input-modal");
}
export function handleDragOver(event: DragEvent) {
event.preventDefault();
event.dataTransfer!.dropEffect = "copy";
}
export function handleDrop(event: DragEvent) {
event.preventDefault();
event.stopPropagation();
var dt = event.dataTransfer;
if (dt?.files && dt.files.length > 0) {
doLoadLocal(dt.files);
}
}
export function handleDragEnd(event: DragEvent) {
var dt = event.dataTransfer;
if (dt?.items) {
for (var i = 0; i < dt.items.length; i++) {
dt.items.remove(i);
}
} else {
event.dataTransfer?.clearData();
}
}
MicroModal.init();
document.addEventListener("DOMContentLoaded", function () {
hashtag = document.location.hash;
/*
* Input Handling
*/
const canvas = document.querySelector<HTMLCanvasElement>("#text")!;
const context = canvas.getContext("2d")!;
text.setContext(context);
window.addEventListener("keydown", _keydown);
window.addEventListener("keyup", _keyup);
window.addEventListener("paste", (event) => {
var paste = event.clipboardData!.getData("text/plain");
setKeyBuffer(paste);
event.preventDefault();
});
window.addEventListener("copy", (event) => {
event.clipboardData?.setData("text/plain", text.getText());
event.preventDefault();
});
document.querySelectorAll("input,textarea").forEach(function (el) {
el.addEventListener("focus", function () {
focused = true;
});
});
document.querySelectorAll("input,textarea").forEach(function (el) {
el.addEventListener("blur", function () {
focused = false;
});
});
keyboard.create();
if (prefs.havePrefs()) {
document
.querySelectorAll<HTMLInputElement>("input[type=checkbox]")
.forEach(function (el) {
var val = prefs.readPref(el.id);
if (val != null) el.checked = JSON.parse(val);
});
document
.querySelectorAll<HTMLInputElement>("input[type=checkbox]")
.forEach(function (el) {
el.addEventListener("change", function () {
prefs.writePref(el.id, JSON.stringify(el.checked));
});
});
}
turbotape = document.querySelector<HTMLInputElement>("#turbo_tape")!.checked;
Object.keys(window.tapes)
.sort()
.forEach(function (key) {
var option = document.createElement("option");
option.value = key;
option.text = key;
document.querySelector("#tape_select")!.append(option);
});
function doTapeSelect() {
var tapeId =
document.querySelector<HTMLInputElement>("#tape_select")!.value;
var tape = window.tapes[tapeId];
if (!tape) {
document.querySelector<HTMLInputElement>("#text_input")!.value = "";
return;
}
debug("Loading", tapeId);
window.location.hash = tapeId;
reset();
if (turbotape) {
var trackIdx = 0,
script = "";
var parts = tape.script.split("\n");
// Ignore part 0 (C100R)
// Split part 1 into ranges
var ranges = parts[1].split(" ");
var idx;
for (idx = 0; idx < ranges.length; idx++) {
var range = ranges[idx].split(".");
var start = parseInt(range[0], 16);
var end = parseInt(range[1], 16);
var track = tape.tracks[trackIdx];
var kdx = 0;
for (var jdx = start; jdx <= end; jdx++) {
cpu.write(jdx >> 8, jdx & 0xff, track[kdx++]);
}
trackIdx++;
}
// Execute parts 2-n
for (idx = 2; idx < parts.length; idx++) {
if (parts[idx]) {
script += parts[idx] + "\n";
}
}
document.querySelector<HTMLInputElement>("#text_input")!.value = script;
} else {
aci.setData(tape.tracks);
document.querySelector<HTMLInputElement>("#text_input")!.value =
tape.script;
}
doLoadText();
}
document
.querySelector("#tape_select")!
.addEventListener("change", doTapeSelect);
run();
setInterval(updateKHz, 1000);
updateScreen();
var tape = hup();
if (tape) {
openLoadText();
document.querySelector<HTMLInputElement>("#tape_select")!.value = tape;
doTapeSelect();
}
});