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

Paulo Garcia paulo.astuser at gmail.com
Mon Dec 26 16:20:01 EST 2016

Hi Glen

First of all, this is really good stuff. The article is very interesting!

I looked for the file but I think it is too soon to have it available for
download. I wonder if you would send me the ZIP file so I can write a quick
post on Vintage is The New Old about your article.


Paulo Garcia

On Mon, Dec 26, 2016 at 4:05 PM, Glen Hewlett <glen.hewlett at sympatico.ca>

> Hi All,
> Over the last month or so I’ve been translating the original Intel 8080
> Arcade version of Space Invaders in a line by line translation to the
> 6809.  I have it to the point where it will play just like the arcade
> machine except no sound and like the original you have to rotate the
> monitor to play it properly.  Or use it with MAME with the -rol option.
> I wrote up a full description on my blog here:
> https://nowhereman999.wordpress.com/2016/12/26/
> space-invaders-cpu-transcoded-from-intel-8080-to-motorola-
> 6809-for-the-trs-80-color-computer-3/ <https://nowhereman999.
> wordpress.com/2016/12/26/space-invaders-cpu-transcoded-
> from-intel-8080-to-motorola-6809-for-the-trs-80-color-computer-3/>
> As the Blog says… I’ve also included the source code to the program in ‘C’
> that I wrote to help with the Translation from 8080 to 6809 and also the
> working translated 6809 CoCo 3 Space Invaders source code (and a binary and
> .dsk version ready to use).  I uploaded the .ZIP file to the TRS-80 Color
> Computer Archive website.
> I hope others find this useful and maybe they can complete this version to
> be rotated properly for a CoCo 3 and maybe add sound…
> Cheers,
> Glen
> Ps. - I have only tested this using MAME as my current CoCo 3 floppy drive
> isn’t working.  :(
> --
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> Coco at maltedmedia.com
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