exp_2_2.asm

单片机硬件实验代码

              ORG       0000H   
              LJMP      START
              ORG       0030H     
      START:  MOV       30H,#40H      ;加数,被加数地址和字节数
              MOV       31H,#50H
              MOV       32H,#03H
      
              MOV       R0,30H 
              MOV       R1,31H
             ;计数器
              MOV       R7,32H
              CLR       C
       LOOP:  MOV       A,@R0
              ADDC      A,@R1
              ;二进制/BCD码选择
              DA        A
              MOV       @R1,A
              INC       R0
              INC       R1
              DJNZ      R7,LOOP
              ;进位存在24H中
              CLR A
              ADDC A,#00H
              ;INC R1
              MOV @R1,A
              SJMP $       
              END