[Coco] Instruction cycles per 60Hz frame.
James Ross
jrosslist at outlook.com
Sun Nov 17 21:16:02 EST 2019
Thanks for the answers, Ed, Evan & Will --> I believe those answers clear it up and give me the most precise / accurate #'s possible.
Bottom line then: we have
14,929 cycles in normal speed (15 more than I had calculated) and
29,859 cycles in double speed (30 more than I had calculated).
So, for a game attempting to update the screen at 60hz this is what you have to play with – which isn’t all that much specially when you consider we have no blitter, no sprites. and no sound chip for that matter… (the CoCo was truly handicapped, but I never thought it that way back in the day!)
Also an emulator needs to take into account the 59.94Hz vs 60hz discrepancy for the best accuracy.
James
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