3-2.asm

微机课的全部实验

        DATA  SEGMENT
        DATA  ENDS
        CODE  SEGMENT
              ASSUME    DS:DATA,CS:CODE
      START:
              PUSH      DS
              SUB       AX,AX
              PUSH      AX
              MOV       AX,DATA
              MOV       DS,AX

              MOV       DX,283H
              MOV       AL,36H
              OUT       DX,AL
              MOV       DX,280H
              MOV       AX,03E8H
              OUT       DX,AL
              MOV       AL,AH
              OUT       DX,AL
              MOV       DX,283H
              MOV       AL,76H
              OUT       DX,AL
              MOV       DX,281H
              MOV       AX,03E8H
              OUT       DX,AL
              MOV       AL,AH
              OUT       DX,AL

              RET
        CODE  ENDS
              END       START