8051 Program – search a byte in array and count match

; search a byte in an array of bytes
; count the number of match
; external memory
	ORG 0H
	MOV R0,#10	;Array size
	MOV R1,#10	;Search value
	MOV R2,#00	;Count
	MOV DPTR,#9000H
LOOP:	MOVX A,@DPTR
	CLR C
	SUBB A,R1	;compare
	INC DPTR
	JNZ SKIP
	INC R2
SKIP:	DJNZ R0,LOOP
	SJMP $
	END

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List of topics: 8051

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