BCD码到ASCII码转换实例

BCD码到ASCII码转换实例

BCDTOASC
MOV      R0,#20H                        
MOV      R1,#10H
MOV      R2,#05H
ACALL     BCDASC
LOOP0:
SJMP     LOOP0
BCDASC:                                
MOV      R1,#10H                        
MOV      R6,#0AH
LOOP1:
MOV      @R1,#00H
INC         R1
DJNZ     R6,LOOP1
LOOP2:
MOV      A, @R0
MOV      R2,A
SWAP    A
ANL     A, # 0FH
ADD     A,#30H-
MOV     @R1,A
INC         R1
MOV     A, R2
ANL        A, #0FH                        
ADD     A, # 30H
MOV     @R1,A                        
INC         R0
INC        R1
DJNZ      R7,LOOP2
RET

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