suggestion：DMA mode selector

[zero35]

i hope add a DMA-mode selector in DreamShell RC4,when i enable "use DMA",not "in sectors"
like this:
PIO0 PIO1 PIO2 PIO3 PIO4
and support MDMA、UDMA modes in the future

[SWAT]

Not sure about MDMA/UDMA, I think it's not possible.
This settings really needed? I use maximum speed in both modes (PIO/DMA) and I can't see this slowdown useful.

[zero35]

i see
thank for answer