Thank you for that info. So to get an MC68000 into a coco and still operate the machine as a coco ie. RSDOS,OS9,etc. would require using the translator on disassembled basic roms as well as disassembled os9. Would this be worth the effort? Wouldn't it be easier to use os9/68k on another machine and then port Burke's RSB to that machine?(COCO4)