Mac Plus emulator for the browser
Last updated 6 years ago by jsdf .
GPL · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install pcejs-macplus 
SYNC missed versions from official npm registry.


a classic mac emulator for the browser

getting started

given a commonjs module

npm init

install dependencies

npm install --save pcejs-macplus pcejs-util

example using a js bundler

add some js index.js

var macplus = require('pcejs-macplus')
var utils = require('pcejs-util')

// add a loading progress bar. not required, but good ux
var loadingStatus = utils.loadingStatus(document.querySelector('.pcejs-loading-status'))

  'arguments': ['-c','pce-config.cfg','-r'],
  autoloadFiles: [
  print: console.log.bind(console),
  printErr: console.warn.bind(console),
  canvas: document.querySelector('.pcejs-canvas'),
  monitorRunDependencies: function (remainingDependencies) {

add some html index.html

<!DOCTYPE html>
    <style type="text/css">
    .pcejs {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
      font-family: sans-serif;
      /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
      border: 0px none;
      padding: 0;
    .pcejs-container { margin-top: 32px }
    /* macplus has mouse integration, so we can hide the host mouse */
    .pcejs-canvas { cursor: none }
    <div class="pcejs pcejs-container">
      <div class="pcejs pcejs-loading-status">Downloading...</div>
      <div class="pcejs">
        <canvas class="pcejs pcejs-canvas" oncontextmenu="event.preventDefault()"></canvas>
    <script type="text/javascript" src="bundle.js"></script>

add a mac os disk image, rom, and pce-config.cfg config file.

curl -O https://jamesfriend.com.au/pce-js/dist/macplus-system.zip
unzip macplus-system.zip

the pce-config.cfg config file should reference the disk images you've loaded (in the autoloadFiles array). in this example the disk image is called hd1.qed, but you can replace it with your own hard drive and floppy disk images in .img, .dsk or .qed format. if you change the disk image, make sure update both pce-config.cfg and the autoloadFiles array.

copy the pce rom patch file and wasm file from the npm package to your project

cp node_modules/pcejs-macplus/macplus-pcex.rom ./macplus-pcex.rom
cp node_modules/pcejs-macplus/pce-macplus.wasm ./pce-macplus.wasm

bundle it with browserify

npm install -g browserify
browserify index.js \
  --ignore-missing \
  > bundle.js

serve it up

npm install -g http-server
http-server .

open http://localhost:8080 to see the emulator running in the browser

Current Tags

  • 0.1.7                                ...           latest (3 months ago)

8 Versions

  • 0.1.7                                ...           3 months ago
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  • 0.1.5                                ...           6 years ago
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  • 0.1.2                                ...           6 years ago
  • 0.1.1                                ...           6 years ago
  • 0.1.0                                ...           6 years ago
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