[Coco] 64K Coco mode and the MC6883

Allen Huffman alsplace at pobox.com
Sat Mar 25 11:10:59 EDT 2023


> On Mar 25, 2023, at 2:41 AM, RETRO Innovations via Coco <coco at maltedmedia.com> wrote:
> 
> Sean's note piques my interest, so I'll see if I can fire up the logic analyzer (it'd be nice to have someone write a test program in ML that checks all the test cases one right after the other, turning off IRQs, and I can capture the entire address and data bus at the CPU and the SAM or something for those cycles).  I would think it should also be easy to test by writing a small program that does:


Things get serious when Jim starts poking around :) Thanks for this information. Very good stuff.

“Wish I knew then what I know now."
--
Allen Huffman - PO Box 7634 - Urbandale IA 50323 - 515-999-0227 (vmail/TXT only)
http://www.subethasoftware.com - https://www.facebook.com/subethasoftware




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