ch18_将acc值（小于99）转化成两个bcd码.asm

51单片机基础篇 对于有一定基础的人看看 包含书中所以的源代码

     ;FUNCTION NAME: BYTE_TO_2BCD
     ;FUNCTION: CONVERT 1 BYTE(<99)TO BCD CODE
     ;HEX DATA IN ACC
     ;BCD RESULT IN ACC
     ;WORKING AREA :(04H)(05H)
     ;
     BYTE_TO_2BCD
           	MOV   	04H,A
           	MOV   	05H,#00H
           	MOV  	R2,#08H
     $1    	MOV   	A,04H
           	ADD   	A,A
           	MOV   	04H,A
           	MOV   	A,05H
           	ADDC  	A,A
           	DA   	A
           	MOV   	05H,A
           	DJNZ  	R2,$1
           	MOV   	A,05H
           	RET
     ;