[Coco] CHIP-8 emulator for Coco

Bob Devries bdevries at gil.com.au
Mon Dec 27 14:58:54 EST 2004


David, I still have all the information I collected about it, including a 
series of newsletters that were produced here in australia. I have the 
schematics, and all.
--
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 11:49 PM
Subject: Re: [Coco] CHIP-8 emulator for Coco


> 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
>> >>
>> >>
>> >> --
>> >> Coco mailing list
>> >> Coco at maltedmedia.com
>> >> http://five.pairlist.net/mailman/listinfo/coco
>> >
>> >
>> > --
>> > Coco mailing list
>> > Coco at maltedmedia.com
>> > http://five.pairlist.net/mailman/listinfo/coco
>> >
>>
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>
>
> -- 
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> 




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