1183 lines
32 KiB
JavaScript
1183 lines
32 KiB
JavaScript
"use strict";
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// catch errors
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function installErrorHandler() {
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if (typeof window.onerror == "object") {
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window.onerror = function (msgevent, url, line, col, error) {
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console.log(msgevent, url, line, col);
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console.log(error);
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//$("#editor").hide();
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if (window.location.host.endsWith('8bitworkshop.com')) {
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ga('send', 'exception', {
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'exDescription': msgevent + " " + url + " " + " " + line + ":" + col + ", " + error,
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'exFatal': true
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});
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}
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alert(msgevent+"");
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};
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}
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}
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function uninstallErrorHandler() {
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window.onerror = null;
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}
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function gotoNewLocation() {
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uninstallErrorHandler();
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window.location = "?" + $.param(qs);
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}
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// make sure VCS doesn't start
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Javatari.AUTO_START = false;
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// 8bitworkshop IDE user interface
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var PRESETS; // presets array
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var platform_id;
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var platform; // platform object
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var toolbar = $("#controls_top");
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var FileStore = function(storage, prefix) {
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var self = this;
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this.saveFile = function(name, text) {
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storage.setItem(prefix + name, text);
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}
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this.loadFile = function(name) {
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return storage.getItem(prefix + name) || storage.getItem(name);
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}
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this.getFiles = function(prefix2) {
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// rename items for compatibility
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for (var i = 0; i < storage.length; i++) {
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var key = storage.key(i);
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if (key.startsWith(prefix2) && platform_id == 'vcs') {
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this.saveFile(key, storage.getItem(key));
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storage.removeItem(key);
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console.log("Renamed",key,'to',prefix+key);
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i=-1; // reset loop
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}
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}
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// iterate over files with <platform>/<dir> prefix
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var files = [];
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for (var i = 0; i < storage.length; i++) {
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var key = storage.key(i);
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if (key.startsWith(prefix + prefix2)) {
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var name = key.substring(prefix.length + prefix2.length);
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files.push(name);
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}
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}
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return files;
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}
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this.deleteFile = function(name) {
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storage.removeItem(prefix + name);
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storage.removeItem(prefix + 'local/' + name);
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}
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}
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var SourceFile = function(lines, text) {
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lines = lines || [];
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this.text = text;
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this.offset2line = {};
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this.line2offset = {};
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for (var info of lines) {
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if (info.offset >= 0) {
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this.offset2line[info.offset] = info.line;
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this.line2offset[info.line] = info.offset;
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}
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}
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this.findLineForOffset = function(PC) {
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if (this.offset2line) {
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for (var i=0; i<16; i++) {
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var line = this.offset2line[PC];
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if (line >= 0) {
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return line;
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}
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PC--;
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}
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}
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return 0;
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}
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}
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var TOOL_TO_SOURCE_STYLE = {
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'dasm': '6502',
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'acme': '6502',
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'cc65': 'text/x-csrc',
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'ca65': '6502',
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'z80asm': 'z80',
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'sdasz80': 'z80',
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'sdcc': 'text/x-csrc',
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}
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var worker = new Worker("./src/worker/workermain.js");
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var current_output = null;
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var current_preset_index = -1; // TODO: use URL
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var current_preset_id = null;
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var assemblyfile = null;
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var sourcefile = null;
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var trace_pending_at_pc;
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var store;
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var pendingWorkerMessages = 0;
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var editor;
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var disasmview = CodeMirror(document.getElementById('disassembly'), {
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mode: 'z80',
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theme: 'cobalt',
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tabSize: 8,
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readOnly: true,
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styleActiveLine: true
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});
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var memoryview;
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var profileview;
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function newEditor(mode) {
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var isAsm = (mode != 'text/x-csrc');
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editor = CodeMirror(document.getElementById('editor'), {
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theme: 'mbo',
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lineNumbers: true,
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matchBrackets: true,
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tabSize: 8,
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indentAuto: true,
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gutters: isAsm ? ["CodeMirror-linenumbers", "gutter-offset", "gutter-bytes", "gutter-clock", "gutter-info"]
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: ["CodeMirror-linenumbers", "gutter-offset", "gutter-info"],
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});
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var timer;
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editor.on('changes', function(ed, changeobj) {
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clearTimeout(timer);
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timer = setTimeout(function() {
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setCode(editor.getValue());
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}, 200);
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});
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editor.on('scroll', function(ed, changeobj) {
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if (profileview) {
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profileview.container.scrollTop = editor.getScrollInfo().top;
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}
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});
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editor.setOption("mode", mode);
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}
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function getCurrentPresetTitle() {
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if (current_preset_index < 0)
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return "ROM";
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else
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return PRESETS[current_preset_index].title || PRESETS[current_preset_index].name || "ROM";
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}
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function setLastPreset(id) {
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localStorage.setItem("__lastplatform", platform_id);
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localStorage.setItem("__lastid_"+platform_id, id);
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}
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function updatePreset(current_preset_id, text) {
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if (text.trim().length) {
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store.saveFile(current_preset_id, text);
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}
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}
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function loadCode(text, fileid) {
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var tool = platform.getToolForFilename(fileid);
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newEditor(tool && TOOL_TO_SOURCE_STYLE[tool]);
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editor.setValue(text); // calls setCode()
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editor.clearHistory();
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current_output = null;
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setLastPreset(fileid);
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}
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function loadFile(fileid, filename, index) {
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current_preset_id = fileid;
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current_preset_index = index;
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var text = store.loadFile(fileid) || "";
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if (text) {
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loadCode(text, fileid);
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} else if (!text && index >= 0) {
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if (filename.indexOf('.') <= 0)
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filename += ".a";
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console.log("Loading preset", fileid, filename, index, PRESETS[index]);
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if (text.length == 0) {
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console.log("Fetching", filename);
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$.get( filename, function( text ) {
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console.log("GET",text.length,'bytes');
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loadCode(text, fileid);
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}, 'text')
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.fail(function() {
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alert("Could not load preset " + fileid);
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loadCode("", fileid);
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});
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}
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} else {
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var ext = platform.getToolForFilename(fileid);
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$.get( "presets/"+platform_id+"/skeleton."+ext, function( text ) {
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loadCode(text, fileid);
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updatePreset(fileid, text);
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}, 'text')
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.fail(function() {
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alert("Could not load skeleton for " + platform_id + "/" + ext);
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loadCode("", fileid);
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});
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}
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}
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function loadPreset(preset_id) {
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// TODO
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var index = parseInt(preset_id+"");
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for (var i=0; i<PRESETS.length; i++)
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if (PRESETS[i].id == preset_id)
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index = i;
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index = (index + PRESETS.length) % PRESETS.length;
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if (index >= 0) {
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// load the preset
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loadFile(preset_id, "presets/" + platform_id + "/" + PRESETS[index].id, index);
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} else {
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// no preset found? load local
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loadFile(preset_id, "local/" + platform_id + "/" + preset_id, -1);
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}
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}
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function gotoPresetAt(index) {
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var index = (index + PRESETS.length) % PRESETS.length;
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qs['file'] = PRESETS[index].id;
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gotoNewLocation();
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}
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function gotoPresetNamed(id) {
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qs['platform'] = platform_id;
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qs['file'] = id;
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gotoNewLocation();
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}
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function _createNewFile(e) {
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var filename = prompt("Create New File", "newfile.a");
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if (filename && filename.length) {
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if (filename.indexOf(".") < 0) {
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filename += ".a";
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}
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qs['file'] = "local/" + filename;
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gotoNewLocation();
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}
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return true;
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}
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function getCurrentFilename() {
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var toks = current_preset_id.split("/");
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return toks[toks.length-1];
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}
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function _shareFile(e) {
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if (current_output == null) {
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alert("Please fix errors before sharing.");
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return true;
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}
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var github = new Octokat();
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var files = {};
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var text = editor.getValue();
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files[getCurrentFilename()] = {"content": text};
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var gistdata = {
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"description": '8bitworkshop.com {"platform":"' + platform_id + '"}',
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"public": true,
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"files": files
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};
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var gist = github.gists.create(gistdata).done(function(val) {
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var url = "http://8bitworkshop.com/?sharekey=" + val.id;
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window.prompt("Copy link to clipboard (Ctrl+C, Enter)", url);
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}).fail(function(err) {
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alert("Error sharing file: " + err.message);
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});
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return true;
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}
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function _resetPreset(e) {
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if (current_preset_index < 0) {
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alert("Can only reset built-in file examples.")
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} else if (confirm("Reset '" + PRESETS[current_preset_index].name + "' to default?")) {
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qs['reset'] = '1';
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gotoNewLocation();
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}
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return true;
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}
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function _downloadROMImage(e) {
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if (current_output == null) {
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alert("Please fix errors before downloading ROM.");
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return true;
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}
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var blob = new Blob([current_output], {type: "application/octet-stream"});
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saveAs(blob, getCurrentFilename()+".rom");
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}
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function populateExamples(sel) {
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sel.append($("<option />").text("--------- Chapters ---------").attr('disabled',true));
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for (var i=0; i<PRESETS.length; i++) {
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var preset = PRESETS[i];
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var name = preset.chapter ? (preset.chapter + ". " + preset.name) : preset.name;
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sel.append($("<option />").val(preset.id).text(name).attr('selected',preset.id==current_preset_id));
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}
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}
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function populateFiles(sel, name, prefix) {
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sel.append($("<option />").text("------- " + name + " -------").attr('disabled',true));
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var filenames = store.getFiles(prefix);
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var foundSelected = false;
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for (var i = 0; i < filenames.length; i++) {
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var name = filenames[i];
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var key = prefix + name;
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sel.append($("<option />").val(key).text(name).attr('selected',key==current_preset_id));
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if (key == current_preset_id) foundSelected = true;
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}
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if (!foundSelected && current_preset_id && current_preset_id.startsWith(prefix)) {
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var name = current_preset_id.slice(prefix.length);
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var key = prefix + name;
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sel.append($("<option />").val(key).text(name).attr('selected',true));
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}
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}
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function updateSelector() {
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var sel = $("#preset_select").empty();
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populateFiles(sel, "Local Files", "local/");
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populateFiles(sel, "Shared", "shared/");
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populateExamples(sel);
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// set click handlers
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sel.off('change').change(function(e) {
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gotoPresetNamed($(this).val());
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});
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$("#preset_prev").off('click').click(function() {
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gotoPresetAt(current_preset_index - 1);
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});
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$("#preset_next").off('click').click(function() {
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gotoPresetAt(current_preset_index + 1);
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});
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}
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function setCode(text) {
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if (pendingWorkerMessages++ > 0)
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return;
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worker.postMessage({code:text, platform:platform_id,
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tool:platform.getToolForFilename(current_preset_id)});
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toolbar.addClass("is-busy");
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$('#compile_spinner').css('visibility', 'visible');
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}
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function arrayCompare(a,b) {
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if (a == null && b == null) return true;
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if (a == null) return false;
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if (b == null) return false;
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if (a.length != b.length) return false;
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for (var i=0; i<a.length; i++)
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if (a[i] != b[i])
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return false;
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return true;
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}
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function setCompileOutput(data) {
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sourcefile = new SourceFile(data.lines);
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if (data.asmlines) {
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assemblyfile = new SourceFile(data.asmlines, data.intermediate.listing);
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}
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// errors?
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function addErrorMarker(line, msg) {
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var div = document.createElement("div");
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div.setAttribute("class", "tooltipbox tooltiperror");
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div.style.color = '#ff3333'; // TODO
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div.appendChild(document.createTextNode("\u24cd"));
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var tooltip = document.createElement("span");
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tooltip.setAttribute("class", "tooltiptext");
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tooltip.appendChild(document.createTextNode(msg));
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div.appendChild(tooltip);
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editor.setGutterMarker(line, "gutter-info", div);
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}
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if (data.errors.length > 0) {
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// TODO: move cursor to error line if offscreen?
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toolbar.addClass("has-errors");
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editor.clearGutter("gutter-info");
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var numLines = editor.lineCount();
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for (info of data.errors) {
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var line = info.line-1;
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if (line < 0 || line >= numLines) line = numLines-1;
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addErrorMarker(line, info.msg);
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}
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current_output = null;
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} else {
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updatePreset(current_preset_id, editor.getValue()); // update persisted entry
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// load ROM
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var rom = data.output;
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var rom_changed = rom && !arrayCompare(rom, current_output);
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if (rom_changed) {
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try {
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//console.log("Loading ROM length", rom.length);
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platform.loadROM(getCurrentPresetTitle(), rom);
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resume();
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current_output = rom;
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prof_reads = [];
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prof_writes = [];
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toolbar.removeClass("has-errors");
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} catch (e) {
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console.log(e); // TODO: show error
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toolbar.addClass("has-errors");
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addErrorMarker(0, e+"");
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current_output = null;
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}
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}
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if (rom_changed || trace_pending_at_pc) {
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// update editor annotations
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// TODO: do incrementally for performance
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editor.clearGutter("gutter-info");
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editor.clearGutter("gutter-bytes");
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editor.clearGutter("gutter-offset");
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editor.clearGutter("gutter-clock");
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for (var info of data.lines) {
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if (info.offset >= 0) {
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var textel = document.createTextNode(hex(info.offset,4));
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editor.setGutterMarker(info.line-1, "gutter-offset", textel);
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}
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if (info.insns) {
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var insnstr = info.insns.length > 8 ? ("...") : info.insns;
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var textel = document.createTextNode(insnstr);
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editor.setGutterMarker(info.line-1, "gutter-bytes", textel);
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if (info.iscode) {
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var opcode = parseInt(info.insns.split()[0], 16);
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if (platform.getOpcodeMetadata) {
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var meta = platform.getOpcodeMetadata(opcode, info.offset);
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var clockstr = meta.minCycles+"";
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var textel = document.createTextNode(clockstr);
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editor.setGutterMarker(info.line-1, "gutter-clock", textel);
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}
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}
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}
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}
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}
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if (trace_pending_at_pc) {
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showLoopTimingForPC(trace_pending_at_pc);
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}
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}
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trace_pending_at_pc = null;
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}
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worker.onmessage = function(e) {
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toolbar.removeClass("is-busy");
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$('#compile_spinner').css('visibility', 'hidden');
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if (pendingWorkerMessages > 1) {
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pendingWorkerMessages = 0;
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setCode(editor.getValue());
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} else {
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pendingWorkerMessages = 0;
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}
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setCompileOutput(e.data);
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}
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function setCurrentLine(line) {
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editor.setSelection({line:line,ch:0}, {line:line-1,ch:0}, {scroll:true});
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}
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var lastDebugInfo;
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var lastDebugState;
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function highlightDifferences(s1, s2) {
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var split1 = s1.split(/(\S+\s+)/).filter(function(n) {return n});
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var split2 = s2.split(/(\S+\s+)/).filter(function(n) {return n});
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var i = 0;
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var j = 0;
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var result = "";
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while (i < split1.length && j < split2.length) {
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var w1 = split1[i];
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var w2 = split2[j];
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if (w2 && w2.indexOf("\n") >= 0) {
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while (i < s1.length && split1[i].indexOf("\n") < 0)
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i++;
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}
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if (w1 != w2) {
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w2 = '<span class="hilite">' + w2 + '</span>';
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}
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result += w2;
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i++;
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j++;
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}
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while (j < split2.length) {
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result += split2[j++];
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}
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return result;
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}
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function showMemory(state) {
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var s = "";
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if (state) {
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s = platform.cpuStateToLongString(state.c);
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if (platform.getRasterPosition) {
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var pos = platform.getRasterPosition();
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s += "H:" + pos.x + " V:" + pos.y + "\n"; // TODO: padding
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}
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if (platform.ramStateToLongString) {
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s += platform.ramStateToLongString(state);
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}
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var hs = lastDebugInfo ? highlightDifferences(lastDebugInfo, s) : s;
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$("#mem_info").show().html(hs);
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lastDebugInfo = s;
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} else {
|
|
$("#mem_info").hide();
|
|
lastDebugInfo = null;
|
|
}
|
|
}
|
|
|
|
function setupBreakpoint() {
|
|
// TODO
|
|
platform.setupDebug(function(state) {
|
|
lastDebugState = state;
|
|
var PC = state.c.PC;
|
|
var line = sourcefile.findLineForOffset(PC);
|
|
if (line >= 0) {
|
|
console.log("BREAKPOINT", hex(PC), line);
|
|
setCurrentLine(line);
|
|
} else {
|
|
console.log("BREAKPOINT", hex(PC));
|
|
// TODO: switch to disasm
|
|
}
|
|
showMemory(state);
|
|
updateDisassembly();
|
|
});
|
|
}
|
|
|
|
function pause() {
|
|
clearBreakpoint();
|
|
if (platform.isRunning()) {
|
|
platform.pause();
|
|
}
|
|
}
|
|
|
|
function resume() {
|
|
clearBreakpoint();
|
|
if (! platform.isRunning()) {
|
|
platform.resume();
|
|
editor.setSelection(editor.getCursor());
|
|
}
|
|
}
|
|
|
|
function singleStep() {
|
|
setupBreakpoint();
|
|
platform.step();
|
|
}
|
|
|
|
function getCurrentLine() {
|
|
return editor.getCursor().line+1;
|
|
}
|
|
|
|
function getDisasmViewPC() {
|
|
var line = disasmview.getCursor().line;
|
|
if (line >= 0) {
|
|
var toks = disasmview.getLine(line).split(/\s+/);
|
|
if (toks && toks[0].length == 4) {
|
|
return parseInt(toks[0], 16);
|
|
}
|
|
}
|
|
}
|
|
|
|
function getCurrentPC() {
|
|
var line = getCurrentLine();
|
|
while (line >= 0) {
|
|
var pc = sourcefile.line2offset[line];
|
|
if (pc >= 0) return pc;
|
|
line--;
|
|
}
|
|
return getDisasmViewPC();
|
|
}
|
|
|
|
function runToCursor() {
|
|
setupBreakpoint();
|
|
var pc = getCurrentPC();
|
|
if (pc >= 0) {
|
|
console.log("Run to", pc.toString(16));
|
|
platform.runEval(function(c) {
|
|
return c.PC == pc;
|
|
});
|
|
}
|
|
}
|
|
|
|
function runUntilReturn() {
|
|
setupBreakpoint();
|
|
platform.runUntilReturn();
|
|
}
|
|
|
|
function runStepBackwards() {
|
|
setupBreakpoint();
|
|
platform.stepBack();
|
|
}
|
|
|
|
function clearBreakpoint() {
|
|
lastDebugState = null;
|
|
platform.clearDebug();
|
|
showMemory();
|
|
}
|
|
|
|
function getClockCountsAtPC(pc) {
|
|
var opcode = platform.readAddress(pc);
|
|
var meta = platform.getOpcodeMetadata(opcode, pc);
|
|
return meta; // minCycles, maxCycles
|
|
}
|
|
|
|
var pc2minclocks = {};
|
|
var pc2maxclocks = {};
|
|
var jsrresult = {};
|
|
var MAX_CLOCKS = 76*2;
|
|
|
|
function byte2signed(b) {
|
|
b &= 0xff;
|
|
return (b < 0x80) ? b : -(256-b);
|
|
}
|
|
|
|
// [taken, not taken]
|
|
var BRANCH_CONSTRAINTS = [
|
|
[{N:0},{N:1}],
|
|
[{N:1},{N:0}],
|
|
[{V:0},{V:1}],
|
|
[{V:1},{V:0}],
|
|
[{C:0},{C:1}],
|
|
[{C:1},{C:0}],
|
|
[{Z:0},{Z:1}],
|
|
[{Z:1},{Z:0}]
|
|
];
|
|
|
|
function constraintEquals(a,b) {
|
|
if (a == null || b == null)
|
|
return null;
|
|
for (var n in a) {
|
|
if (b[n] !== 'undefined')
|
|
return a[n] == b[n];
|
|
}
|
|
for (var n in b) {
|
|
if (a[n] !== 'undefined')
|
|
return a[n] == b[n];
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// TODO: move to file
|
|
function _traceInstructions(pc, minclocks, maxclocks, subaddr, constraints) {
|
|
//console.log("trace", hex(pc), minclocks, maxclocks);
|
|
if (!minclocks) minclocks = 0;
|
|
if (!maxclocks) maxclocks = 0;
|
|
if (!constraints) constraints = {};
|
|
var modified = true;
|
|
var abort = false;
|
|
for (var i=0; i<1000 && modified && !abort; i++) {
|
|
modified = false;
|
|
var meta = getClockCountsAtPC(pc);
|
|
var lob = platform.readAddress(pc+1);
|
|
var hib = platform.readAddress(pc+2);
|
|
var addr = lob + (hib << 8);
|
|
var pc0 = pc;
|
|
if (!pc2minclocks[pc0] || minclocks < pc2minclocks[pc0]) {
|
|
pc2minclocks[pc0] = minclocks;
|
|
modified = true;
|
|
}
|
|
if (!pc2maxclocks[pc0] || maxclocks > pc2maxclocks[pc0]) {
|
|
pc2maxclocks[pc0] = maxclocks;
|
|
modified = true;
|
|
}
|
|
//console.log(hex(pc),minclocks,maxclocks,meta);
|
|
if (!meta.insnlength) {
|
|
console.log("Illegal instruction!", hex(pc), hex(meta.opcode), meta);
|
|
break;
|
|
}
|
|
pc += meta.insnlength;
|
|
var oldconstraints = constraints;
|
|
constraints = null;
|
|
// TODO: if jump to zero-page, maybe assume RTS?
|
|
switch (meta.opcode) {
|
|
/*
|
|
case 0xb9: // TODO: hack for zero page,y
|
|
if (addr < 0x100)
|
|
meta.maxCycles -= 1;
|
|
break;
|
|
*/
|
|
case 0x85:
|
|
if (lob == 0x2) { // STA WSYNC
|
|
minclocks = maxclocks = 0;
|
|
meta.minCycles = meta.maxCycles = 0;
|
|
}
|
|
break;
|
|
case 0x20: // JSR
|
|
_traceInstructions(addr, minclocks, maxclocks, addr, constraints);
|
|
var result = jsrresult[addr];
|
|
if (result) {
|
|
minclocks = result.minclocks;
|
|
maxclocks = result.maxclocks;
|
|
} else {
|
|
console.log("No JSR result!", hex(pc), hex(addr));
|
|
return;
|
|
}
|
|
break;
|
|
case 0x4c: // JMP
|
|
pc = addr; // TODO: make sure in ROM space
|
|
break;
|
|
case 0x60: // RTS
|
|
if (subaddr) {
|
|
// TODO: combine with previous result
|
|
var result = jsrresult[subaddr];
|
|
if (!result) {
|
|
result = {minclocks:minclocks, maxclocks:maxclocks};
|
|
} else {
|
|
result = {
|
|
minclocks:Math.min(minclocks,result.minclocks),
|
|
maxclocks:Math.max(maxclocks,result.maxclocks)
|
|
}
|
|
}
|
|
jsrresult[subaddr] = result;
|
|
console.log("RTS", hex(pc), hex(subaddr), jsrresult[subaddr]);
|
|
}
|
|
return;
|
|
case 0x10: case 0x30: // branch
|
|
case 0x50: case 0x70:
|
|
case 0x90: case 0xB0:
|
|
case 0xD0: case 0xF0:
|
|
var newpc = pc + byte2signed(lob);
|
|
var crosspage = (pc>>8) != (newpc>>8);
|
|
if (!crosspage) meta.maxCycles--;
|
|
// TODO: other instructions might modify flags too
|
|
var cons = BRANCH_CONSTRAINTS[Math.floor((meta.opcode-0x10)/0x20)];
|
|
var cons0 = constraintEquals(oldconstraints, cons[0]);
|
|
var cons1 = constraintEquals(oldconstraints, cons[1]);
|
|
if (cons0 !== false) {
|
|
_traceInstructions(newpc, minclocks+meta.maxCycles, maxclocks+meta.maxCycles, subaddr, cons[0]);
|
|
}
|
|
if (cons1 === false) {
|
|
console.log("abort", hex(pc), oldconstraints, cons[1]);
|
|
abort = true;
|
|
}
|
|
constraints = cons[1]; // not taken
|
|
meta.maxCycles = meta.minCycles; // branch not taken, no extra clock(s)
|
|
break;
|
|
case 0x6c:
|
|
console.log("Instruction not supported!", hex(pc), hex(meta.opcode), meta); // TODO
|
|
return;
|
|
}
|
|
// TODO: wraparound?
|
|
minclocks = Math.min(MAX_CLOCKS, minclocks + meta.minCycles);
|
|
maxclocks = Math.min(MAX_CLOCKS, maxclocks + meta.maxCycles);
|
|
}
|
|
}
|
|
|
|
function showLoopTimingForPC(pc) {
|
|
pc2minclocks = {};
|
|
pc2maxclocks = {};
|
|
jsrresult = {};
|
|
// recurse through all traces
|
|
_traceInstructions(pc | platform.getOriginPC(), MAX_CLOCKS, MAX_CLOCKS);
|
|
// show the lines
|
|
for (var line in sourcefile.line2offset) {
|
|
var pc = sourcefile.line2offset[line];
|
|
var minclocks = pc2minclocks[pc];
|
|
var maxclocks = pc2maxclocks[pc];
|
|
if (minclocks>=0 && maxclocks>=0) {
|
|
var s;
|
|
if (maxclocks == minclocks)
|
|
s = minclocks + "";
|
|
else
|
|
s = minclocks + "-" + maxclocks;
|
|
if (maxclocks == MAX_CLOCKS)
|
|
s += "+";
|
|
var textel = document.createTextNode(s);
|
|
editor.setGutterMarker(line-1, "gutter-bytes", textel);
|
|
}
|
|
}
|
|
}
|
|
|
|
function traceTiming() {
|
|
trace_pending_at_pc = platform.getOriginPC();
|
|
setCode(editor.getValue());
|
|
}
|
|
|
|
/*
|
|
function showLoopTimingForCurrentLine() {
|
|
var line = getCurrentLine();
|
|
var pc = line2offset[line];
|
|
if (pc) {
|
|
showLoopTimingForPC(pc);
|
|
}
|
|
}
|
|
*/
|
|
|
|
function jumpToLine(ed, i) {
|
|
var t = ed.charCoords({line: i, ch: 0}, "local").top;
|
|
var middleHeight = ed.getScrollerElement().offsetHeight / 2;
|
|
ed.scrollTo(null, t - middleHeight - 5);
|
|
}
|
|
|
|
function updateDisassembly() {
|
|
var div = $("#disassembly");
|
|
if (div.is(':visible')) {
|
|
var state = lastDebugState || platform.saveState();
|
|
var pc = state.c.PC;
|
|
if (assemblyfile && assemblyfile.text) {
|
|
disasmview.setValue(assemblyfile.text);
|
|
var findPC = platform.getDebugCallback() ? pc : getCurrentPC();
|
|
if (findPC) {
|
|
var lineno = assemblyfile.findLineForOffset(findPC);
|
|
if (lineno) {
|
|
if (platform.getDebugCallback()) disasmview.setCursor(lineno-1, 0);
|
|
jumpToLine(disasmview, lineno-1);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
var curline = 0;
|
|
var selline = 0;
|
|
// TODO: not perfect disassembler
|
|
function disassemble(start, end) {
|
|
if (start < 0) start = 0;
|
|
if (end > 0xffff) end = 0xffff;
|
|
// TODO: use pc2visits
|
|
var a = start;
|
|
var s = "";
|
|
while (a < end) {
|
|
var disasm = platform.disassemble(a, platform.readAddress);
|
|
var srclinenum = sourcefile.offset2line[a];
|
|
if (srclinenum) {
|
|
var srcline = editor.getLine(srclinenum-1);
|
|
if (srcline && srcline.trim().length) {
|
|
s += "; " + srclinenum + ":\t" + srcline + "\n";
|
|
}
|
|
}
|
|
var bytes = "";
|
|
for (var i=0; i<disasm.nbytes; i++)
|
|
bytes += hex(platform.readAddress(a+i));
|
|
while (bytes.length < 14)
|
|
bytes += ' ';
|
|
var dline = hex(parseInt(a)) + "\t" + bytes + "\t" + disasm.line + "\n";
|
|
s += dline;
|
|
if (a == pc) selline = curline;
|
|
curline++;
|
|
a += disasm.nbytes || 1;
|
|
}
|
|
return s;
|
|
}
|
|
var text = disassemble(pc-96, pc) + disassemble(pc, pc+96);
|
|
disasmview.setValue(text);
|
|
disasmview.setCursor(selline, 0);
|
|
jumpToLine(disasmview, selline);
|
|
}
|
|
}
|
|
|
|
function toggleDisassembly() {
|
|
$("#disassembly").toggle();
|
|
$("#editor").toggle();
|
|
updateDisassembly();
|
|
}
|
|
|
|
function resetAndDebug() {
|
|
clearBreakpoint();
|
|
platform.resume();
|
|
platform.reset();
|
|
setupBreakpoint();
|
|
platform.runEval(function(c) { return true; });
|
|
}
|
|
|
|
function _breakExpression() {
|
|
var exprs = window.prompt("Enter break expression", "c.PC == 0x6000"); // TODO
|
|
if (exprs) {
|
|
var fn = new Function('c', 'return (' + exprs + ');');
|
|
setupBreakpoint();
|
|
platform.runEval(fn);
|
|
}
|
|
}
|
|
|
|
function updateDebugWindows() {
|
|
if (platform.isRunning()) {
|
|
updateMemoryWindow();
|
|
updateProfileWindow();
|
|
}
|
|
setTimeout(updateDebugWindows, 200);
|
|
}
|
|
|
|
function getProfileLine(line) {
|
|
var offset = sourcefile.line2offset[line];
|
|
if (offset >= 0) {
|
|
if (prof_reads[offset] > 0)
|
|
return ""+prof_reads[offset];
|
|
}
|
|
}
|
|
|
|
function updateProfileWindow() {
|
|
if (profileview && sourcefile) {
|
|
$("#profileview").find('[data-index]').each(function(i,e) {
|
|
var div = $(e);
|
|
var lineno = div.attr('data-index') | 0;
|
|
var newtext = getProfileLine(lineno+1);
|
|
if (newtext) {
|
|
var oldtext = div.text();
|
|
if (oldtext != newtext)
|
|
div.text(newtext);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function updateMemoryWindow() {
|
|
if (memoryview) {
|
|
$("#memoryview").find('[data-index]').each(function(i,e) {
|
|
var div = $(e);
|
|
var offset = div.attr('data-index') * 16;
|
|
var oldtext = div.text();
|
|
var newtext = getMemoryLineAtOffset(offset);
|
|
if (oldtext != newtext)
|
|
div.text(newtext);
|
|
});
|
|
}
|
|
}
|
|
|
|
function getMemoryLineAtOffset(offset) {
|
|
var s = hex(offset,4) + ' ';
|
|
for (var i=0; i<16; i++) {
|
|
var read = platform.readMemory(offset+i);
|
|
if (i==8) s += ' ';
|
|
s += ' ' + (read>=0?hex(read,2):'??');
|
|
}
|
|
return s;
|
|
}
|
|
|
|
function getEditorLineHeight() {
|
|
return $("#editor").find(".CodeMirror-line").first().height();
|
|
}
|
|
|
|
function showMemoryWindow() {
|
|
memoryview = new VirtualList({
|
|
w:$("#emulator").width(),
|
|
h:$("#emulator").height(),
|
|
itemHeight: getEditorLineHeight(),
|
|
totalRows: 0x1000,
|
|
generatorFn: function(row) {
|
|
var s = getMemoryLineAtOffset(row * 16);
|
|
var div = document.createElement("div");
|
|
div.appendChild(document.createTextNode(s));
|
|
return div;
|
|
}
|
|
});
|
|
$("#memoryview").empty().append(memoryview.container);
|
|
updateMemoryWindow();
|
|
memoryview.scrollToItem(0x800); // TODO
|
|
}
|
|
|
|
function toggleMemoryWindow() {
|
|
if ($("#profileview").is(':visible')) toggleProfileWindow();
|
|
if ($("#memoryview").is(':visible')) {
|
|
memoryview = null;
|
|
$("#emulator").show();
|
|
$("#memoryview").hide();
|
|
} else {
|
|
showMemoryWindow();
|
|
$("#emulator").hide();
|
|
$("#memoryview").show();
|
|
}
|
|
}
|
|
|
|
function createProfileWindow() {
|
|
profileview = new VirtualList({
|
|
w:$("#emulator").width(),
|
|
h:$("#emulator").height(),
|
|
itemHeight: getEditorLineHeight(),
|
|
totalRows: editor.lineCount(),
|
|
generatorFn: function(row) {
|
|
var div = document.createElement("div");
|
|
div.appendChild(document.createTextNode("."));
|
|
return div;
|
|
}
|
|
});
|
|
$("#profileview").empty().append(profileview.container);
|
|
updateProfileWindow();
|
|
}
|
|
|
|
var prof_reads, prof_writes;
|
|
|
|
function profileWindowCallback(a,v) {
|
|
if (v >= 0) {
|
|
prof_writes[a] = (prof_writes[a]|0)+1;
|
|
} else {
|
|
prof_reads[a] = (prof_reads[a]|0)+1;
|
|
}
|
|
}
|
|
|
|
function toggleProfileWindow() {
|
|
if ($("#memoryview").is(':visible')) toggleMemoryWindow();
|
|
if ($("#profileview").is(':visible')) {
|
|
profileview = null;
|
|
platform.getProbe().deactivate();
|
|
$("#emulator").show();
|
|
$("#profileview").hide();
|
|
} else {
|
|
createProfileWindow();
|
|
platform.getProbe().activate(profileWindowCallback);
|
|
$("#emulator").hide();
|
|
$("#profileview").show();
|
|
}
|
|
}
|
|
|
|
function setupDebugControls(){
|
|
$("#dbg_reset").click(resetAndDebug);
|
|
$("#dbg_pause").click(pause);
|
|
$("#dbg_go").click(resume);
|
|
$("#dbg_step").click(singleStep);
|
|
$("#dbg_toline").click(runToCursor);
|
|
$("#dbg_stepout").click(runUntilReturn);
|
|
$("#dbg_stepback").click(runStepBackwards);
|
|
if (platform_id == 'vcs') {
|
|
$("#dbg_timing").click(traceTiming).show();
|
|
}
|
|
else if (platform.readAddress) {
|
|
$("#dbg_memory").click(toggleMemoryWindow).show();
|
|
}
|
|
if (platform.getProbe) {
|
|
$("#dbg_profile").click(toggleProfileWindow).show();
|
|
}
|
|
if (platform.saveState) { // TODO: only show if listing or disasm available
|
|
$("#dbg_disasm").click(toggleDisassembly).show();
|
|
}
|
|
$("#disassembly").hide();
|
|
$(".dropdown-menu").collapse({toggle: false});
|
|
$("#item_new_file").click(_createNewFile);
|
|
$("#item_share_file").click(_shareFile);
|
|
$("#item_reset_file").click(_resetPreset);
|
|
$("#item_debug_expr").click(_breakExpression);
|
|
$("#item_download_rom").click(_downloadROMImage);
|
|
updateDebugWindows();
|
|
}
|
|
|
|
function showWelcomeMessage() {
|
|
if (!localStorage.getItem("8bitworkshop.hello"))
|
|
{
|
|
// Instance the tour
|
|
var tour = new Tour({
|
|
autoscroll:false,
|
|
//storage:false,
|
|
steps: [
|
|
{
|
|
element: "#editor",
|
|
title: "Welcome to 8bitworkshop!",
|
|
content: "Type your 6502 code on the left side, and it'll be assembled in real-time. All changes are saved to browser local storage.",
|
|
},
|
|
{
|
|
element: "#emulator",
|
|
placement: 'left',
|
|
title: "Atari VCS Emulator",
|
|
content: "This is an emulator for the Atari VCS/2600. We'll load your assembled code into the emulator whenever you make changes.",
|
|
},
|
|
{
|
|
element: "#preset_select",
|
|
title: "File Selector",
|
|
content: "Pick a code example from the book, or access your own files and files shared by others."
|
|
},
|
|
{
|
|
element: "#debug_bar",
|
|
placement: 'bottom',
|
|
title: "Debug Tools",
|
|
content: "Use these buttons to set breakpoints, single step through code, pause/resume, and perform timing analysis."
|
|
},
|
|
{
|
|
element: "#dropdownMenuButton",
|
|
title: "Main Menu",
|
|
content: "Click the menu to create new files and share your work with others."
|
|
},
|
|
]});
|
|
tour.init();
|
|
setTimeout(function() { tour.start(); }, 2000);
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////
|
|
|
|
var qs = (function (a) {
|
|
if (!a || a == "")
|
|
return {};
|
|
var b = {};
|
|
for (var i = 0; i < a.length; ++i) {
|
|
var p = a[i].split('=', 2);
|
|
if (p.length == 1)
|
|
b[p[0]] = "";
|
|
else
|
|
b[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));
|
|
}
|
|
return b;
|
|
})(window.location.search.substr(1).split('&'));
|
|
|
|
function preloadWorker(fileid) {
|
|
var tool = platform.getToolForFilename(fileid);
|
|
if (tool) worker.postMessage({preload:tool});
|
|
}
|
|
|
|
function initPlatform() {
|
|
store = new FileStore(localStorage, platform_id + '/');
|
|
}
|
|
|
|
function startPlatform() {
|
|
initPlatform();
|
|
if (!PLATFORMS[platform_id]) throw Error("Invalid platform '" + platform_id + "'.");
|
|
platform = new PLATFORMS[platform_id]($("#emulator")[0]);
|
|
PRESETS = platform.getPresets();
|
|
if (qs['file']) {
|
|
// start platform and load file
|
|
preloadWorker(qs['file']);
|
|
setupDebugControls();
|
|
platform.start();
|
|
loadPreset(qs['file']);
|
|
updateSelector();
|
|
return true;
|
|
} else {
|
|
// try to load last file (redirect)
|
|
var lastid = localStorage.getItem("__lastid_"+platform_id) || localStorage.getItem("__lastid");
|
|
localStorage.removeItem("__lastid");
|
|
gotoPresetNamed(lastid || PRESETS[0].id);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function loadSharedFile(sharekey) {
|
|
var github = new Octokat();
|
|
var gist = github.gists(sharekey);
|
|
gist.fetch().done(function(val) {
|
|
var filename;
|
|
for (filename in val.files) { break; }
|
|
var newid = 'shared/' + filename;
|
|
var json = JSON.parse(val.description.slice(val.description.indexOf(' ')+1));
|
|
console.log("Fetched " + newid, json);
|
|
platform_id = json['platform'];
|
|
initPlatform();
|
|
updatePreset(newid, val.files[filename].content);
|
|
qs['file'] = newid;
|
|
qs['platform'] = platform_id;
|
|
delete qs['sharekey'];
|
|
gotoNewLocation();
|
|
}).fail(function(err) {
|
|
alert("Error loading share file: " + err.message);
|
|
});
|
|
return true;
|
|
}
|
|
|
|
// start
|
|
function startUI(loadplatform) {
|
|
installErrorHandler();
|
|
// add default platform?
|
|
platform_id = qs['platform'] || localStorage.getItem("__lastplatform");
|
|
if (!platform_id) {
|
|
platform_id = qs['platform'] = "vcs";
|
|
}
|
|
// parse query string
|
|
// is this a share URL?
|
|
if (qs['sharekey']) {
|
|
loadSharedFile(qs['sharekey']);
|
|
} else {
|
|
// reset file?
|
|
if (qs['file'] && qs['reset']) {
|
|
initPlatform();
|
|
store.deleteFile(qs['file']);
|
|
qs['reset'] = '';
|
|
gotoNewLocation();
|
|
} else {
|
|
// load and start platform object
|
|
if (loadplatform) {
|
|
var scriptfn = 'src/platform/' + platform_id.split('-')[0] + '.js';
|
|
$.getScript(scriptfn, function() {
|
|
console.log("loaded platform", platform_id);
|
|
startPlatform();
|
|
});
|
|
} else {
|
|
startPlatform();
|
|
}
|
|
}
|
|
}
|
|
}
|