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DMAEN vs normal GPU priority


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Never used it, but according to the documentation, it doesn't. It does raises the GPU priority on the bus, but if there's no bus contention, it won't make any difference. And if there is bus contention, it causes the GPU to have a higher priority than the object processor, which is something you don't want as it will cause display glitches (as documented in the errata, which tells you not to use DMAEN).

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STOREP/LOADP worth it when you can use it : if you can handle the restriction about those instruction.


I will not recommend to use DMAEN, I think that the headache to make it works as you want with all Tom bugs will not worth the time/boost ratio.

A better way is to optimize the GPU code. :)




Edited by SCPCD
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