1991/0620/pc/l.s (diff list | history)

1991/0619/sys/src/9/pc/l.s:10,34 – 1991/0620/sys/src/9/pc/l.s:10,76 (short | long | prev | next)
1991/0614
1991/0619		/* * trap vector, each instruction is 4 bytes long
1991/0620		* standard traps
1991/0619		*/
1991/0614		TEXT traptab(SB),$0                  CALL noerrcode(SB) /* divide */ CALL noerrcode(SB) /* debug */ CALL noerrcode(SB) /* non maskable interrupt */ CALL noerrcode(SB) /* breakpoint */ CALL noerrcode(SB) /* overflow */ CALL noerrcode(SB) /* bounds check */ CALL noerrcode(SB) /* invalid opcode */ CALL noerrcode(SB) /* coprocessor not available */ CALL errcode(SB) /* double fault */ CALL noerrcode(SB) /* coprocessor segment overrun */ CALL errcode(SB) /* invalid tss */ CALL errcode(SB) /* segment not present */ CALL errcode(SB) /* stack exception */ CALL errcode(SB) /* general protection exception */ CALL errcode(SB) /* page fault */
1991/0620		divtrap: PUSHL $0 PUSHL $0 JMP alltrap debtrap: PUSHL $0 PUSHL $1 JMP alltrap nmitrap: PUSHL $0 PUSHL $2 JMP alltrap bptrap: PUSHL $0 PUSHL $3 JMP alltrap oftrap: PUSHL $0 PUSHL $4 JMP alltrap boundtrap: PUSHL $0 PUSHL $5 JMP alltrap invtrap: PUSHL $0 PUSHL $6 JMP alltrap nocotrap: PUSHL $0 PUSHL $7 JMP alltrap dfault: PUSHL $8 JMP alltrap csotrap: PUSHL $0 PUSHL $9 JMP alltrap tsstrap: PUSHL $0 PUSHL $10 JMP alltrap segtrap: PUSHL $11 JMP alltrap stacktrap: PUSHL $12 JMP alltrap prottrap: PUSHL $13 JMP alltrap pagefault: PUSHL $14 JMP alltrap cetrap: PUSHL $0 PUSHL $15 JMP alltrap
1991/0614		CALL noerrcode(SB) /* coprocessor error */ CALL noerrcode(SB) CALL noerrcode(SB)