[Coco] CHIP-8 Emulator

[David Roper]

Hi Bob,

I seem to recall you helped me out with a bunch of DREAM related
documents about 8 years back.. I still have them, and I'm working with
those as a basis for the CoCo emulator

Can you provide an example of the CHIP-8 with embedded 6800 code? I
might be able to do something with that down-the-track

Kind regards,
David

On 7 August 2011 13:59, Bob Devries <devries.bob at gmail.com> wrote:
> 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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