[Coco] Space Invaders - Translated from Intel 8080 to Motorola 6809 for the CoCo 3

[Glen Hewlett]

> On Dec 29, 2016, at 7:09 AM, Mark McDougall <msmcdoug at iinet.net.au> wrote:
> 
> On 29/12/2016 2:54 AM, Glen Hewlett wrote:
> 
>> I was thinking that with a 6502 to 6809 translation that someone
>> could port the Apple II or Pet to the CoCo 3.  Of course you couldn’t
>> play any machine language games but you probably could run basic
>> games made for those systems on the CoCo translated version.  I think
>> that would be cool to see…
> 
> I think someone had (Z80) CP/M running on the Coco3 a while back... haven't heard much more about it lately.
> 
> The Apple II (software) is a good candidate for the Coco3 because of the similar graphics modes and - to a degree - CPU. Lode Runner translated fairly well to 6809 in the end…
> 

Hi Mark,

Thank’s for that insight, it would be kind of neat to be able to have translated versions that you could run on the CoCo 3 of the original three, the Apple II, TRS-80 Model I, and the Commodore PET.  The PET is the first PC I ever used and it is special to me in that regard.  My older brother was allowed to take the PET home for weekends from his high school and I was blown away by the magic box and from then on I was hooked.  I think it was that summer we got the CoCo.  At some point the PET will probably be the one I’ll try to get translated first (If I can that is).  Space Invaders was a really good experience for me, I’ve started to look at Pac Man now and the full Z80 Instruction set has quite a few more instructions than the 8080 so I think I’m going to be fighting with this for a while not only that but the graphics hardware is sprite based (something else to learn)...

Cheers,
Glen

> Regards,
> 
> -- 
> Mark McDougall
> <http://retroports.blogspot.com.au>
> 
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