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1、DATA SEGMENT IOPORT EQU 0D880H-280H IO8255A EQU IOPORT+280H IO0832A EQU IOPORT+2A0H IO8255C EQU IOPORT+282H IO8255T EQU IOPORT+283H BUF1 DW 0 BUF2 DW 0 CRT DB 'K0 IS LOWS PEED SWITCH',0DH,0AH DB 'K1 IS MIDS PEED',0DH,0AH DB 'K2 IS HIGH SPEED',0DH,0AH DB 'K3 IS NORMAL SPEED',0DH,0
2、AH DB 'K4 IS NATURE SPEED',0DH,0AH DB 'K5 IS SLEEP SPEED',0DH,0AH DB 'STIR ANY SWHITCH, VIEW ELECTRIC MORTOR SPEED', 0DH, 0AH DB 'ENTER ANY KEY CAN EXIT TO DOS', 0DH, 0AH,'$' DATA ENDS STACKS SEGMENT DB 100 DUP(?) STACKS ENDS CODE SEGMENT ASSUME CS: CODE, DS: D
3、ATA, SS: STACKS,ES: DATA START: MOV AX, DATA MOV DS,AX MOV ES,AX MOV AX,STACKS MOV SS,AX MOV DX,OFFSET CRT MOV AH,09H INT 21H MOV DX,IO8255T MOV AL,8BH OUT DX,AL JIANCE1:MOV AL,80H MOV DX,IO0832A OUT DX,AL
4、JIANCE2:PUSH DX MOV AH,06h MOV DL,0FFH INT 21H POP DX JE INTK MOV AH,4CH INT 21H WAITP PROC PUSH AX XOR AX,AX LOOP1: IN AL,61H AND AL,10H CMP AL,AH JE LOOP1 MOV AH,AL LOOP LOOP1 POP AX RET WAIT
5、P ENDP YANSHI PROC LOOP2: MOV CX,33144 CALL WAITP DEC BL JNZ LOOP2 RET YANSHI ENDP INTK: MOV DX,IO8255C IN AL,DX TEST AL,01H JNZ K0 TEST AL,02H JNZ K1 TEST AL,04H JNZ K2 TEST AL,08H JNZ K3 TEST AL,10H JNZ K4 TEST AL,20H JNZ K5 JMP JIAN
6、CE1 K0: MOV DX,IO8255A MOV AL,3FH OUT DX,AL MOV BUF1,0FFFFH MOV BUF2,9000H DELAY: MOV CX,BUF1 DELAY1: LOOP DELAY1 MOV AL,0FFH MOV DX,IO0832A OUT DX,AL MOV CX,BUF2 DELAY2: LOOP DELAY2 JMP JIANCE1 OUTLV PROC MOV AL,80H MOV DX,IO0832A OUT DX,AL
7、 RET OUTLV ENDP OUTHV1 PROC MOV AL,0CFH MOV DX,IO0832A OUT DX,AL RET OUTHV1 ENDP OUTHV2 PROC MOV AL,0AFH MOV DX,IO0832A OUT DX,AL RET OUTHV2 ENDP K1: MOV BUF1,0FFFFH MOV BUF2,0E000H MOV DX,IO8255A MOV AL,06H OUT DX,AL
8、JMP DELAY K2: MOV BUF1,0FFFFH MOV BUF2,0FFFFH MOV DX,IO8255A MOV AL,5BH OUT DX,AL JMP DELAY K3: MOV BUF1,0FFFFH MOV BUF2,0A000H MOV DX,IO8255A MOV AL,4FH OUT DX,AL JMP DELAY K4: MOV DX,IO8255A MOV AL,66H OUT DX,AL CALL OUTHV1 MOV BL,128 CALL YANSHI CALL OUTLV MOV BL,128 CALL YANSHI JMP JIANCE2 K5: MOV DX,IO8255A MOV AL,6DH OUT DX,AL CALL OUTHV2 MOV BL,64 CALL YANSHI CALL OUTLV MOV BL,128 CALL YANSHI JMP JIANCE2 CODE ENDS END START
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