CDVD: Adjust DMA timing based on PS1 timings. #5056
Conversation
Bus width is 16bit on the PS2 and 8bit on PS1, so serves to reason the DMA would be twice the speed. (PS1 is 24 cycle per word)
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totally fixes victorious boxers - no longer requires fast cdvd - no delay, music continues into second round shadowman didn't break. didn't fix ecco the dolphin. the other games in #4117 should be tested but i don't own. |
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Will you stop going on about Ecco, that will never be fixed by anything :P |
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nevermind. didn't know victorious boxer and bob the builder were already fixed. i thought they both still needed fast cdvd |
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Not that I know of. The main thing with this PR was fixing shit without breaking anything, which was being somewhat problematic, so I just went for something legitimate and it seemed to work well out of sheer luck I think lol |
Description of Changes
Adjusts the CDVD DMA (3) timing to that based on PS1 tested numbers.
Rationale behind Changes
Bus width is 16bit on the PS2 between the DVD drive and the DSP, it is 8bit on PS1, so serves to reason the DMA would be twice the speed. (PS1 is 24 cycle per word)
Suggested Testing Steps
test games, make sure they still work and don't die horribly.
Fixes Spongebob Lights, Camera, Pants!