Versatile Commodore Emulator for JavaScript
JavaScript port of VICE 2.4 using Emscripten.
| Browser | Version | Status | Note |
|---|---|---|---|
| Firefox | 25, 26 | ok | -o3 (--llvm-lto 3) -> 100 second asm.js compile time |
| 28, 29 | sad | sound clicks | |
| Chrome | 31 | sad | slow |
| 33, 34 | ok | tiny sound clicks | |
| IE | 11 | broken | did you expect something different? Typed array constructor argument is invalid |
- try using worker thread (emcc --proxy-to-worker)
- add other computers
- VIC-20
- fix vice menu ui (F12)
- fix IE
<!doctype html>
<html lang="en-us">
<head></head>
<body>
<!-- the canvas *must not* have any border or padding, or mouse coords will be wrong -->
<canvas id="canvas" style="border: 0px none;"></canvas>
<script type="text/javascript" >
var Module = {
arguments: ['+sound'],
canvas: document.getElementById('canvas'),
};
</script>
<script type="text/javascript" src="js/x64.js"></script>
</body>
</html>async mode:
- soundfragsize 2 -soundrate 22050 -soundsync 0
sync mode:
- soundfragsize 2 -soundrate 22050 -soundsync 0 -ntsc
- ntsc is important because browser requestAnimationFame is going to deliver 60 fps which means less cpu time is wasted during vsync delay
###How to find key codes
- in
/vice/src/arch/sdl/kbd.c # sdlkbd_press() - this line prints key codes to console when key is pressed
fprintf(stderr, "%s: %i (%s),%i\n",__func__,key,SDL_GetKeyName(key),mod);- activate by compiling vice with SDL_DEBUG flag
C64 Wiki
Commodore 64 keyboard matrix layout
COMMODORE 64 ROGRAMMER'S REFERENCE GUIDE
Commodore Manuals
Coroutines in C
requestAnimationFrame setting fps
SDL 1.2 to 2.0 Migration Guide
VICE Manual