mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-05-28 08:41:30 +00:00
350 lines
9.4 KiB
JavaScript
350 lines
9.4 KiB
JavaScript
"use strict";
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// set up require.js for worker
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importScripts("dasm.js");
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importScripts("acme.js");
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importScripts("plasm.js");
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importScripts("cc65.js");
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importScripts("ca65.js");
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importScripts("ld65.js");
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// shim out window and document objects for security
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// https://github.com/mbostock/d3/issues/1053
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var noop = function() { return new Function(); };
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var window = noop();
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window.CSSStyleDeclaration = noop();
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window.CSSStyleDeclaration.setProperty = noop();
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window.Element = noop();
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window.Element.setAttribute = noop();
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window.Element.setAttributeNS = noop();
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window.navigator = noop();
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var document = noop();
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document.documentElement = noop();
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document.documentElement.style = noop();
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// load filesystems for CC65 and others asynchronously
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var fsMeta, fsBlob;
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{
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var xhr = new XMLHttpRequest();
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xhr.responseType = 'blob';
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xhr.open("GET", "fs65.data", false); // synchronous request
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xhr.send(null);
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fsBlob = xhr.response;
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xhr = new XMLHttpRequest();
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xhr.responseType = 'json';
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xhr.open("GET", "fs65.js.metadata", false); // synchronous request
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xhr.send(null);
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fsMeta = xhr.response;
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console.log("Loaded filesystem", fsMeta.files.length, 'files', fsBlob.size||fsBlob.length, 'bytes');
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}
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// mount the filesystem at /share
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function setupFS(FS) {
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FS.mkdir('/share');
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FS.mount(FS.filesystems['WORKERFS'], {
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packages: [{ metadata: fsMeta, blob: fsBlob }]
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}, '/share');
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}
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// main worker start
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var DASM_MAIN_FILENAME = "main.a";
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var DASM_PREAMBLE = "\tprocessor 6502\n";
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var DASM_PREAMBLE_LINES = 1;
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var print_fn = function(s) { console.log(s); }
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function parseDASMListing(code, unresolved) {
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var errorMatch = /main.a [(](\d+)[)]: error: (.+)/;
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// 4 08ee a9 00 start lda #01workermain.js:23:5
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var lineMatch = /\s*(\d+)\s+(\S+)\s+([0-9a-f]+)\s+([0-9a-f][0-9a-f ]+)\s+(.+)/;
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var equMatch = /\bequ\b/;
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var errors = [];
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var lines = [];
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var lastline = 0;
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for (var line of code.split(/\r?\n/)) {
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var linem = lineMatch.exec(line);
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if (linem && linem[1]) {
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var linenum = parseInt(linem[1]) - DASM_PREAMBLE_LINES;
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var filename = linem[2];
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var offset = parseInt(linem[3], 16);
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var insns = linem[4];
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var restline = linem[5];
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// inside of main file?
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if (filename == DASM_MAIN_FILENAME) {
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if (insns && !restline.match(equMatch)) {
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lines.push({
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line:linenum,
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offset:offset,
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insns:insns,
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iscode:restline[0] != '.'
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});
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}
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lastline = linenum;
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} else {
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// inside of macro or include file
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if (linenum == -DASM_PREAMBLE_LINES) { // start of macro?
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lines.push({
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line:lastline+1,
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offset:offset,
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insns:null
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});
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}
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}
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// TODO: check filename too
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// TODO: better symbol test (word boundaries)
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for (var key in unresolved) {
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var pos = restline ? restline.indexOf(key) : line.indexOf(key);
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if (pos >= 0) {
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errors.push({
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line:linenum,
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msg:"Unresolved symbol '" + key + "'"
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});
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}
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}
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}
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var errm = errorMatch.exec(line);
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if (errm) {
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errors.push({
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line:parseInt(errm[1]),
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msg:errm[2]
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})
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}
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}
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return {lines:lines, errors:errors};
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}
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function assembleDASM(code) {
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var re_usl = /(\w+)\s+0000\s+[?][?][?][?]/;
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var unresolved = {};
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function match_fn(s) {
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var matches = re_usl.exec(s);
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if (matches) {
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unresolved[matches[1]] = 0;
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}
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}
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var Module = DASM({
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noInitialRun:true,
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print:match_fn
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});
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var FS = Module['FS'];
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FS.writeFile(DASM_MAIN_FILENAME, DASM_PREAMBLE + code);
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Module.callMain([DASM_MAIN_FILENAME, "-v3", "-la.lst"]);
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var aout = FS.readFile("a.out");
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var alst = FS.readFile("a.lst", {'encoding':'utf8'});
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var listing = parseDASMListing(alst, unresolved);
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return {
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exitstatus:Module.EXITSTATUS,
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output:aout.slice(2),
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listing:listing,
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intermediate:{listing:alst},
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};
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}
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// TODO: not quite done
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function assembleACME(code) {
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// stderr
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var re_err2 = /(Error|Warning) - File (.+?), line (\d+) ([^:]+) (.*)/;
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var errors = [];
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var errline = 0;
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function match_fn(s) {
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var matches = re_err2.exec(s);
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if (matches) {
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errors.push({
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line:1, // TODO: parseInt(matches[3]),
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msg:matches[0] // TODO: matches[5]
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});
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}
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}
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var Module = ACME({
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noInitialRun:true,
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print:match_fn,
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printErr:match_fn
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});
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var FS = Module['FS'];
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FS.writeFile("main.a", code);
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Module.callMain(["-o", "a.out", "-r", "a.rpt", "-l", "a.sym", "--setpc", "24576", "main.a"]);
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if (errors.length) {
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return {listing:{errors:errors}};
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}
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var aout = FS.readFile("a.out");
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var alst = FS.readFile("a.rpt", {'encoding':'utf8'}); // TODO
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var asym = FS.readFile("a.sym", {'encoding':'utf8'}); // TODO
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var listing = parseDASMListing(alst, {}); // TODO
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return {
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exitstatus:Module.EXITSTATUS,
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output:aout,
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listing:listing,
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intermediate:{listing:alst, symbols:asym},
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};
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}
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function compilePLASMA(code) {
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// stdout
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var outstr = "";
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function out_fn(s) { outstr += s; outstr += "\n"; }
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// stderr
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var re_err1 = /\s*(\d+):.*/;
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var re_err2 = /Error: (.*)/;
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var errors = [];
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var errline = 0;
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function match_fn(s) {
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var matches = re_err1.exec(s);
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if (matches) {
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errline = parseInt(matches[1]);
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}
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matches = re_err2.exec(s);
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if (matches) {
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errors.push({
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line:errline,
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msg:matches[1]
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});
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}
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}
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var Module = PLASM({
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noInitialRun:true,
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noFSInit:true,
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print:out_fn,
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printErr:match_fn,
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});
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var FS = Module['FS'];
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var i = 0;
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var output = [];
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FS.init(
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function() { return i<code.length ? code.charCodeAt(i++) : null; }
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);
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FS.writeFile("main.pla", code);
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Module.callMain(["-A"]);
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outstr = "INTERP = $e044\n" + outstr; // TODO
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if (errors.length) {
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return {listing:{errors:errors}};
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}
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return assembleACME(outstr);
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}
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function parseCA65Listing(code, mapfile) {
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// CODE 00603E 00637C 00033F 00001
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var mapMatch = /^CODE\s+([0-9A-F]+)/m.exec(mapfile);
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var codeofs = 0x6000;
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if (mapMatch) {
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var codeofs = parseInt(mapMatch[1], 16);
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}
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// .dbg line, "main.c", 1
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var dbgLineMatch = /([0-9a-fA-F]+)([r]?)\s+(\d+)\s+[.]dbg\s+line,\s+\S+,\s+(\d+)/;
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var errors = [];
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var lines = [];
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var lastlinenum = 0;
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for (var line of code.split(/\r?\n/)) {
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var linem = dbgLineMatch.exec(line);
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if (linem && linem[1]) {
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var offset = parseInt(linem[1], 16);
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var linenum = parseInt(linem[4]);
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lines.push({
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line:linenum,
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offset:offset + codeofs,
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insns:null
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});
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//console.log(linem, lastlinenum, lines[lines.length-1]);
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}
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}
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return {lines:lines, errors:errors};
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}
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function assemblelinkCA65(code, platform, warnings) {
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if (!platform)
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platform = 'apple2'; // TODO
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var objout, lstout;
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{
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var CA65 = ca65({
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noInitialRun:true,
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//logReadFiles:true,
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print:print_fn,
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printErr:print_fn,
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//locateFile: function(s) { return "" + s; },
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});
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var FS = CA65['FS'];
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setupFS(FS);
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FS.writeFile("main.s", code, {encoding:'utf8'});
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CA65.callMain(['-v', '-g', '-I', '/share/asminc', '-l', 'main.lst', "main.s"]);
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objout = FS.readFile("main.o", {encoding:'binary'});
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lstout = FS.readFile("main.lst", {encoding:'utf8'});
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}{
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var LD65 = ld65({
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noInitialRun:true,
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//logReadFiles:true,
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print:print_fn,
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printErr:print_fn,
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//locateFile: function(s) { return "" + s; },
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});
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var FS = LD65['FS'];
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setupFS(FS);
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FS.writeFile("main.o", objout, {encoding:'binary'});
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LD65.callMain(['--cfg-path', '/share/cfg', '--lib-path', '/share/lib',
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'--start-addr', '0x6000', // TODO
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'-t', platform, '-o', 'main', '-m', 'main.map', 'main.o', platform+'.lib']);
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var aout = FS.readFile("main", {encoding:'binary'});
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var mapout = FS.readFile("main.map", {encoding:'utf8'});
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return {
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exitstatus:LD65.EXITSTATUS,
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output:aout.slice(4),
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listing:parseCA65Listing(lstout, mapout),
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intermediate:{listing:lstout, map:mapout},
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};
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}
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}
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function compileCC65(code, platform) {
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if (!platform)
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platform = 'apple2'; // TODO
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// stderr
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var re_err1 = /.*?(\d+).*?: (.+)/;
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var errors = [];
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var errline = 0;
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function match_fn(s) {
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var matches = re_err1.exec(s);
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if (matches) {
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errline = parseInt(matches[1]);
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errors.push({
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line:errline,
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msg:matches[2]
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});
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}
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}
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var CC65 = cc65({
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noInitialRun:true,
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//logReadFiles:true,
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print:print_fn,
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printErr:match_fn,
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//locateFile: function(s) { return "" + s; },
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});
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var FS = CC65['FS'];
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setupFS(FS);
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FS.writeFile("main.c", code, {encoding:'utf8'});
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CC65.callMain(['-v', '-T', '-g', /*'-Cl',*/ '-Oirs', '-I', '/share/include', '-t', platform, "main.c"]);
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try {
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var asmout = FS.readFile("main.s", {encoding:'utf8'});
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return assemblelinkCA65(asmout, platform, errors);
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} catch(e) {
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return {listing:{errors:errors}};
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}
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}
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var tools = {
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'dasm': assembleDASM,
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'plasm': compilePLASMA,
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'cc65': compileCC65,
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'ca65': assemblelinkCA65,
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}
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onmessage = function(e) {
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var code = e.data.code;
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var platform = e.data.platform;
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var toolfn = tools[e.data.tool];
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if (!toolfn) throw "no tool named " + e.data.tool;
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var result = toolfn(code, platform);
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if (result) {
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postMessage(result);
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}
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}
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