8051 Program – find out of range data

; find out of range data
; given block of 100h to 200h.
; Find out how many bytes from this block are
; greater then the number in r2 and less then number in r3.
; Store the count in r4.
	ORG 0H
	MOV R2, #70
	MOV R3, #50
	MOV DPTR, #0100H
	MOV R7, #0FFH
	MOV R4, #00H
	MOV 20H, R2
	MOV 21H, R3
NEXT:	MOVX A, @DPTR
	CJNE A, 21H, LOWER
	SJMP OUT
LOWER:	JNC OUT
	CJNE A, 20H, LIMIT
	SJMP OUT
LIMIT:	JC OUT
	INC R4
OUT:	INC DPTR
	DJNZ R7, NEXT
	END

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List of topics: 8051

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