Count the number with the largest absolute logarithm of a group of numbers

1. Realize the idea

Find out the maximum and minimum values of this group of numbers by cycling , Then compare the maximum and minimum values inversely , Get the maximum number of the final absolute value

2. Code implementation

2.1DATA Segment definition

Define arrays separately , Maximum , minimum value

DATA	SEGMENT	; Find the maximum and minimum values in a group of numbers and compare the absolute values of the maximum and minimum values 
ARR	DB	12,-9,-56,-5,-100,18,-41,22,45,99
MAX	DB	?
MIN	DB	?
DATA	ENDS

2.2 CODE paragraph

CODE	SEGMENT
ASSUME	CS:CODE,DS:DATA
START:	
	MOV	AX,DATA				
	MOV	DS,AX			; Initialization data segment 
	MOV	BH,OFFSET ARR	; take ARR First address to BL
	MOV	CX,10			; Set the number of cycles 
; For the minimum 
LOOP1:			
	MOV	Al,[BX]			; By offset address , take ARR The first number of is sent to AL
	CMP	MAX,Al			; Compare the maximum with Max Compare 
	JGE	LOWER			; If it is greater than or equal to, jump 
	MOV	MAX,Al			; otherwise , take AL Send Max
LOWER:	
	INC	 BX
	LOOP LOOP1	
    
    
	MOV	CX,10
	
; For maximum 
LOOP2:	MOV	AH,[BX]
	CMP	MIN,AH
	JLE	GREATER
	MOV	MIN,AH
GREATER:	
	DEC	BX
	LOOP LOOP2	; Maximum 


	NEG	MIN
	MOV AH,MAX
	MOV AL,MIN
	CMP AH,AL
	JGE BIG
	XCHG AH,AL
	
BIG:
	MOV MAX,AH
	
	MOV	AH,4CH
	INT	21H
CODE	ENDS
END	START