Comments on: JSSpeccy: A ZX Spectrum Emulator in JavaScript

By: Remedies

Remedies — Wed, 19 Nov 2008 11:05:44 +0000

That takes me back

By: russh

russh — Wed, 05 Nov 2008 10:35:59 +0000

@cromwellian: Interesting idea! I’ll have a play and post back any results.

By: Brad Neuberg

Brad Neuberg — Sun, 02 Nov 2008 07:46:13 +0000

@russh: Hey there, can we work together to put together a bug report for what you’ve found? Email me at bradneuberg AT AT AT AT google.com.

By: cromwellian

cromwellian — Sun, 02 Nov 2008 07:03:10 +0000

russh, one possible hack is to construct data urls with the new image. Concatenating strings might turn out to be faster than the overhead of fillRect.

By: sos

sos — Sat, 01 Nov 2008 12:04:36 +0000

It just hangs on my XP Firefox 3.0.3, taking up all the CPU, which is killing me since i REALLY want to play Manic Miner again!

By: paulhan

paulhan — Sat, 01 Nov 2008 00:21:36 +0000

Wow, that was my first ever computer. I got the 64k model which was the zenith of computing at the time. My first program was a cost calculator for the father’s workshop. A day’s worth of calculating by hand could be done on it in a half an hour, until it wouldn’t load off the cassette tape (this was pre hard drive) any more. It took me six long nights to do the program first time around and two short nights the second time, Happy days.
Paul.

By: russh

russh — Fri, 31 Oct 2008 15:50:34 +0000

I’m playing with the canvas at the moment writing a Mandelbrot fractal explorer. I’ve implemented the same code path as Matt (using putImageData if available, falling back to 1×1 rectangles if not). Unfortunately, from a quick bit of testing, it seems Chrome’s version of webkit doesn’t support the putImageData functionality.

It’s a shame as I imagine it would really fly but the 1×1 rectangle bliting kills any performance gains from the faster JS processing. Currently Firefox 3.1 (with JIT enabled) gives the best performance on my app.

By: Nosredna

Nosredna — Fri, 31 Oct 2008 14:56:01 +0000

When a browser runs Joust on MAME at full speed, GAME OVER!

By: Diodeus

Diodeus — Fri, 31 Oct 2008 12:38:12 +0000

Wow, that’s amazing!

I’m still holding out for the C64. I miss playing Paradroid.