Other platforms had their own. RISC OS (Acorn) had its infamous "Abort on data transfer" (or "Abort on instruction fetch" if you branched instead of LDR/STR'd)

Other platforms had their own. RISC OS (Acorn) had its infamous "Abort on data transfer" (or "Abort on instruction fetch" if you branched instead of LDR/STR'd). And if you were especially naughty and chased a null pointer, you got "ofla" -- which was the contents of the first four bytes of memory!