6.2.6双字节字符串顺序查找.txt

里面有好多的原码,大家都来下载.用asm编写的

FINDS2:
MOV    	DPL,R1						
MOV    	DPH,R0
MOV    	A,R7
JZ     	FINDS21
INC    	R6							
FINDS21:
MOVX   	A,@DPTR
INC    	DPTR						
CLR    	C							
SUBB   	A,R4
JNZ    	FINDS22
MOVX   	A,@DPTR
SUBB   	A,R3
JNZ    	FINDS22
MOV    	A,DPL
CLR    	C							
SUBB   	A,#01H
MOV    	R1,A						
MOV    	A,DPH
SUBB   	A,#00H
MOV    	R0,A
CLR    	A
RET
FINDS22:
DJNZ   	R7,FINDS21
DJNZ   	R6,FINDS21
MOV    	A,#0FFH
RET