[Coco] CHIP-8 Emulator

[Bob Devries]

Hi David,

My only exposure to CHIP-8 was on the DREAM 6800. Sadly, I sold it to 
another enthusiast.

Almost all the programmes I have for CHIP-8 also have embedded 6800 code. 
That means that no current emulators that I'm aware of will run those 
programmes.

I have a number of copies of the DREAMER magazine which was a magazine 
produced in Australia for the users of the DREAM 6800.

I'd love to build another DREAM, with replacements for hard to get 
components such as the RAM, EPROM etc. Even the CPU may be hard to get now.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "David Roper" <ebonhand09 at gmail.com>
To: <coco at maltedmedia.com>
Sent: Saturday, August 06, 2011 9:53 PM
Subject: [Coco] CHIP-8 Emulator


Hi all,

I've dusted off my Coco, rebuilt my tool-chain, and I'm back to
actually produce something!

My ultimate project will be a Coco emulator..

No, not another MESS, or VCC or XRoar..

An emulator that runs ON the Coco!

I'm implementing the CHIP-8 interpreter on the Coco, so we can play
all of our favourite 64x32 monochrome games :)

Intended initial feature set:

* Load compiled CHIP-8 code from disk

* Choose own emulated hex-pad keys, so you can use the Coco WASD or
arrow keys. Machines supporting CHIP-8 were built with a variety of
hex-pad layouts, and the software was just as varied. Being able to
set your own keymap is a must!

* Joystick-to-hex-pad mapping, so you can play Pong or Tank Battle in
style and comfort!

* Adjustable speed setting

Once it's all up and running, I'll probably move on to emulating the
SCHIP-8 extensions, although this will require moving to a pure
graphics mode (128x64)

I'm doing some internal tech demos and code explorations at the
moment, but I'll note my progress as things move forward!

- Dave

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