ZitatOriginally posted by tnt
I think DMA could still be used by swapping data between MMC64 and REU memory.
I must have had temporarily brain paralysis yesterday - REU will overwrite the shift register when it's writing to MMC64, so when it reads from MMC64 one cycle later it wil get that same data back, possibly with a bit ar two of data read from card.
Anyway, this is purely theoretical as don't have REU and can't test any of this.