stephen@datacube.UUCP (12/17/87)
Exception stack frames start of with 4 words in common: The SR, PC, and Vector Offset word. The upper 4 bits of the Vector Offset word describe the type as follows: 0000 Short Format 0001 Throwaway 0010 Instruction Exception 0011 - 0111 Undefined, Reserved 1000 MC68010 Bus Fault 1001 Coprocessor mid-instruction 1010 MC68020 Short bus fault 1011 MC68020 Long Bus faul 1100-1111 Undefined, Reserved Stephen Watkins UUCP: ihnp4!datacube!stephen Datacube Inc.; 4 Dearborn Rd.; Peabody, Ma. 01960; 617-535-6644