exp_7_2.asm

来自「单片机硬件实验代码」· 汇编 代码 · 共 35 行

	    ORG         0000H  
	    LJMP        START
      	    ORG         0030H
	   
     START: MOV         30H,#40H
	    MOV         31H,#50H
	    MOV         32H,#04H 
	    
            MOV         R0,30H
            MOV         R1,31H
            MOV         R7,32H
     LOOP:  MOV         A,@R0 
            SWAP        A          
            ACALL       HEX_ASC
            INC         R1
            MOV         A,@R0
           ; SWAP        A
            ACALL       HEX_ASC
            INC         R0
            INC         R1
            DJNZ        R7,LOOP
            SJMP        $
            
    HEX_ASC:ANL         A,#0FH
            CJNE        A,#0AH,_A
            SJMP        ABC
        _A: JNC         ABC
            ADD         A,#30H
            SJMP        DONE
       ABC: ADD         A,#37H
      DONE: MOV         @R1,A
            RET
            
            END