EEPW论坛

将20H单元的2个BCD码拆开并变成ASCII码存入21H、22H单元。

        ORG 0000H 
        LJMP MAIN
MAIN:
        MOV R0，#22h 
        MOV @R0，#0
        MOV A,20H
        XCHD A,@R0
        ORL 22H,#30H
        SWAP A
        ORL A,#30H
        MOV 21H,A
        SJMP $
        END