pingzi.asm

让你更方便的了解到计算机组成的原理

        ORG     0000H
        SJMP    PROG4
        ORG     0070H
PROG4:  MOV     DPTR,   #7000H
        MOVX    A,      @DPTR
        ANL     A,      #0F0H
        SWAP    A
        MOV     B,      A
        MOVX    A,      @DPTR
        ANL     A,      #0F0H
        ORL     A,      B
        INC     DPTR
        MOVX    @DPTR,  A
        END