copy functions, and convert isa and pmax drivers to do so.
Remove all references to #ifdef SPARSE, and use #ifdef alpha instead. Only initialize ASIC dma on a machine with an ASIC.
back to the DECstation. Boots on 3MAX and 3MAXPLUS. The bug-fixes applied to this driver since it forked off the Decstation code also seem to fix long-standing DMA problems with the Decstation SCSI driver.