NMI.rar_NMI中断_mni中断_nmi

CODE SEGMENT ASSUME DS:DATA,CS:CODE START: MOV AX, DATA MOV DS, AX PUSH ES XOR AX, AX MOV ES, AX MOV AL, 2 XOR AH, AH SHL AL, 1 SHL AL, 1 MOV SI, AX MOV AX, OFFSET NMI_SERVICE MOV ES:[SI], AX MOV BX, CS MOV ES:[SI+2], BX POP ES MOV SI, OFFSET TABLE MOV DX, 8000H LP: MOV AL, [SI] OUT DX, AL JMP LP NMI_SERVICE: INC SI CMP SI, OFFSET TABLE_END JB EXIT MOV SI, OFFSET TABLE exit: iret code ends DATA SEGMENT TABLE DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH;0~9的共阴极七段数码管编码 TABLE_END = $ DATA ENDS end START