well, id rather have SCSI working at all than any performance.
Seeing that RAM is a bottleneck, plus some other design limitations as mentioned. Performance would be squeezing the lemon a little bit.
But i think the target is replacing dead SCSI chips. Assuming they are dead. I guess they can die. i haven't found one yet. But anyway, i guess use a newer chip and fix the ROM, or use an FPGA to emulate the 53C80. Only 2 options i see.
Seeing that RAM is a bottleneck, plus some other design limitations as mentioned. Performance would be squeezing the lemon a little bit.
But i think the target is replacing dead SCSI chips. Assuming they are dead. I guess they can die. i haven't found one yet. But anyway, i guess use a newer chip and fix the ROM, or use an FPGA to emulate the 53C80. Only 2 options i see.