45ec8742b1
now uses the DMACSR_READ bit and no longer keeps _nd_dmadir in softc unified transfer cleanup code, now in routine next_dma_finish_xfer() fixed bounds checking on registers after transfer. removed checking for bus errors since the bit is always set on some nexts (specifically, on mourning, a 25mhz 68040 mono slab) fixed a couple of dma bugs involving chaining dma buffers. |
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