See an Apple 1 (Mimeo) running a 6800 instead of a 6502

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See an Apple 1 (Mimeo) running a 6800 instead of a 6502

Check out the video.

http://www.youtube.com/watch?v=ag6pWUhps7U&feature=youtu.be

Note that this is a first, as Woz never tested a 6800 in an Apple 1. He did do some testing with the pin compatible 6501 in his prototype.

regards,
Mike W.

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Re: See an Apple 1 (Mimeo) running a 6800 instead of a 6502

Congratulations on making it work!
I wanted to try it too for a long time, but I did not get my Mimeo-1 built yet.
I missed being the first here Wink

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Re: See an Apple 1 (Mimeo) running a 6800 instead of a 6502

Great work Mike! I was always curious if this would ever successfully run 6800 code.
I'll bet Woz himself would be interested in your success. Well done!

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Re: See an Apple 1 (Mimeo) running a 6800 instead of a 6502

It wasn't me. It was a collaboration between Eric Smith writing the 6800 monitor a while back and a friend from down under named Lionel doing the hardware debug. Woz already knows about it.

Regards,
Mike W

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Re: See an Apple 1 (Mimeo) running a 6800 instead of a 6502

Absolutely COOL! Smile

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Re: See an Apple 1 (Mimeo) running a 6800 instead of a 6502

I updated Eric's MESS patches from 143 to 146 and posted them along with the ROM source and binaries here: http://asciiexpress.net/files/Apple-1_6800/. I was having problems with MESS 143 on my Mac, hence the update. At the time 146 (6 months ago) was the current release of MESS (now it's 148). I also included a small benchmark (Pi to 1000 digits) that I wrote to compare performance.

I would if possible like to benchmark the real thing to validate MESS performance. A video of the run would be most helpful. Runtime with output is about 2 minutes.

Thanks.

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