Matthew GarrettI suddenly need to care about Amiga DMA cycle timings and this isn't an improvement in my quality of life
Is there a diagram anywhere of exactly where the DMA cycles occur during horizontal scanout?
Ben Hutchings@mjg59 It's in the Hardware Reference Manual https://archive.org/details/amiga-hardware-reference-manual-3rd-edition/ page 195 ( or page 199 depending on how you count)
Amiga Hardware Reference Manual 3rd Edition : Commodore-Amiga Inc. : Free Download, Borrow, and Streaming : Internet Archive
AMIGA TECHNICAL REFERENCE SERIESIntroductionCoprocessor hardwarePlayfield hardwareSprite hardwareAudio hardwareBlitter hardwareSystem Control hardwareInterface...
@mjg59 Btw I think it's possible to turn off bitplane DMA and poke the data directly into the BPLnDAT registers, but this is not documented and the timing would be very challenging