Variable TIA write delays

thrust26 commented 6 years ago

The delays seems to vary slightly between console types, especially for PF. So we should analyze the delay differences and make the delays configurable, either individually of combined per console type.

thrust26 commented 5 years ago

Examples:

https://www.youtube.com/watch?v=9HwcWCJM_zA&feature=youtu.be&t=1396 (see mountain at the top), http://atariage.com/forums/topic/55802-thrust-on-a-cc2/#entry678768, can both be reproduced with TIA::Delay::pf == 2+1
https://youtu.be/A6yikWqQPys?t=3984 (see color of at left of 4th block column), can be reproduced by delaying COLUPF by 1 (instead of 0). Note: After watching some videos of Moonbeam Arcade it seems that their console produces this error, but not the one above, so we may need separate settings here: https://youtu.be/j_fv3dnRBNM?t=19044 (color glitch) https://youtu.be/E9lN2sxn_Zw?t=6302 (no PF glitch)

thrust26 commented 5 years ago

This source might help as well: http://www.ataricompendium.com/faq/vcs_tia/vcs_tia.html

thrust26 commented 5 years ago

Further common problems to address:

Cosmic Ark stars (HMOVE related)
Kool Aid Man score bug (HMOVE related) http://www.ataricompendium.com/faq/vcs_tia/vcs_tia_kool-aid_man.jpg
G.I. Joe: Cobra Strike (HMOVE related) https://youtu.be/QyTin7iqHds?t=101 https://youtu.be/S4v0rNkBhSI?t=275 https://youtu.be/cLWAuCG2BNg?t=85 https://youtu.be/cLWAuCG2BNg?t=126 (could be code bugs as well)
Thunderground score bug (early HMOVE @70) http://atariage.com/forums/topic/167678-strange-color-problem-with-stella/page-2#entry2075498 http://www.ataricompendium.com/faq/vcs_tia/vcs_tia_thunderground.jpg
(maybe) Masters of the Universe - The Power of He-Man (shuffleplayer related, two variations); TJ: Obelix has 3 stray pixels on the title screen too Octopus has wrong pixel in the copyright/score area Room of Doom has an extra line before the 1 in "ROOM01" Stray pixel in Ski Hunt score display Space Treat Deluxe has stray pixel on title Squeeze Box extra pixel in game/score display SW-Ewok Adventure has stray pixel in game display

thrust26 commented 5 years ago

This is implemented in the Developer/TIA tab.

stella-emu / stella

Variable TIA write delays #322