【正文】 4 wait2: MOV DX,PB IN AL,DX cmp al,0FBh jnz wait3 mov al,00000000b mov dx,PA out dx,al MOV DX,PC MOV AL,00H OUT DX,AL wait3: MOV DX,PB IN AL,DX cmp al,0Fbh jz wait3 MOV DX,PC MOV AL,01H OUT DX,AL MOV CX,0EH DELA8: DEC CX LOOP DELA8 MOV DX,PA MOV AL,01H OUT DX,AL MOV CX,06H DELA: DEC CX LOOP DELA MOV DX,PA MOV AL,03H OUT DX,AL MOV CX,06H DELA1: DEC CX LOOP DELA1 MOV DX,PA MOV AL,07H OUT DX,AL MOV CX,06H DELA2: DEC CX LOOP DELA2 wait6: MOV DX,PB IN AL,DX cmp al,0FBh jnz wait7 mov al,00000000b mov dx,PA 15 out dx,al MOV DX,PC MOV AL,00H OUT DX,AL wait7: MOV DX,PB IN AL,DX cmp al,0Fbh jz wait7 MOV DX,PA MOV AL,0FH OUT DX,AL MOV CX,0EH DELA3: DEC CX LOOP DELA3 mov dx, PA MOV AL,1FH OUT DX,AL MOV CX,06H DELA4: DEC CX LOOP DELA4 MOV DX,PA MOV AL,3FH OUT DX,AL MOV CX,06H DELA5: DEC CX LOOP DELA5 MOV DX,PA MOV AL,7FH OUT DX,AL MOV CX,06H DELA6: DEC CX LOOP DELA6 MOV DX,PA MOV AL,0FFH OUT DX,AL MOV CX,0EH DELA9:DEC CX LOOP DELA9 MOV DX,PC MOV AL,0 OUT DX,AL 16 MOV CX,0EH DELA10:DEC CX LOOP DELA10 MOV DX,PA MOV AL,0 OUT DX,AL JMP START2 ret START2 ENDP CODE ENDS END START