[Coco] CHIP-8 emulator for Coco

[David]

The Dream 6800 was mentioned in that article I posted.. what do you remember
of the system, Bob?

I'm -deeply- considering putting together a CHIP8 emulator for the CoCo2,
using the semigraphics 64x32 mode for the mono graphics..

unfortunately, any instruction timings from the original specifications of
the CHIP8 system have been lost, so it's impossible to know the relative
execution times of the opcodes

wondering on what would be the best way to do the actual 'rom' loadings..
perhaps a basic program that selects and LOADM's the game rom, LOADM's the
emulator itself, then boots into the emulator?

Just thinking out-loud at this stage.. anyone interested in hearing more on
the project as I go along, or should I just shhh until I've got something to
release?

Anyone else have memories of the CHIP8 system?

Regards,
David
----- Original Message -----
From: Bob Devries <bdevries at gil.com.au>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Monday, December 27, 2004 11:20 PM
Subject: Re: [Coco] CHIP-8 emulator for Coco


> Hey, I had a computer that had a CHIP8 interpreter, back in the late 70's.
> It was a 6800 based SBC, presented in Electronics Australia. It was called
> the Dream 6800.
>
> --
> Regards, Bob Devries. Dalby, Queensland, Australia.
> Faith isn't faith until it's all you're holding on to.
> http://e4god.com/freeblogs/bdevries/
>
>
> ----- Original Message -----
> From: "David" <golgotha at toughguy.net>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Monday, December 27, 2004 7:52 PM
> Subject: [Coco] CHIP-8 emulator for Coco
>
>
> > Hi gang,
> >
> > Was just reading about the CHIP-8 virtual machine.. the specs mention
it's
> > got 4kb of memory, a single chanel of one-tone sound, and a 64x32 mono
> > screen.. sounds like its crying out to be the Coco's first emulator.. :)
> >
> > could even be done on a coco2, by using the semigraphics mode.. since
the
> > graphics are all a single color, 64x32 breaks down nicely to the coco2's
> > 32x16 text mode..
> >
> > http://www.pdc.kth.se/~lfo/chip8/CHIP8.htm talks about the 'platform
that
> > never actually existed'.. and i get the feeling this could be an
> > interesting
> > project :)
> >
> > anyone have any experience with the CHIP-8 virtual machine, or any
> > comments
> > on how/why this should be done? :P
> >
> > -David
> >
> > ----- Original Message -----
> > From: David <golgotha at toughguy.net>
> > To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> > Sent: Monday, December 27, 2004 4:36 PM
> > Subject: [Coco] Tutorias for Coco3 ASM
> >
> >
> >> Hi-diddly-ho
> >>
> >> I hope Xmas found you all well :)
> >>
> >> I was wondering if anyone's written (or has seen around) some simply
> >> assembly tutorials relating to graphics-type stuff.. I've got a book on
> >> programming the 6809, but it focuses on the Coco2, and only briefly
> > touches
> >> on graphics (as a ML extension to a basic program)
> >>
> >> I'm hoping to expand into making some Coco3 games, but I needs some
> >> direction on where to look, or at least some hints, tips and code
> >> snippets
> >> to get me started
> >>
> >> Anyone feel like throwing some code my way?
> >>
> >> Regards,
> >> David
> >>
> >>
> >> --
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> >> Coco at maltedmedia.com
> >> http://five.pairlist.net/mailman/listinfo/coco
> >
> >
> > --
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> >
>
>
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