Store a group of positive and negative numbers separately , And statistics 0 The number of

1. Realize the idea

By giving positive numbers 、 Negative numbers allocate space for the length of a length digit group , Then send the first address of the two variables to the register , And then loop through , Combine numbers with 0 Judge , Branch in three ways , After execution, the statement .

2. Code implementation

DATA SEGMENT    
    ARY DB -7,9,-9,1,18,1,-4,6,-13,-1,0,-3,0,-9,0
	CNT EQU $-ARY
	PLUS DB CNT DUP(?)
	MINUS DB CNT DUP(?)
	CNT0 DB 0
DATA ENDS

CODE SEGMENT
    ASSUME CS:CODE,DS:DATA
START:
    MOV AX,DATA
    MOV DS,AX  
    MOV BX,OFFSET ARY;ary The first address 
	MOV SI,OFFSET PLUS;PLUS The first address 
	MOV DI,OFFSET MINUS;MINUS The first address 
	MOV CL,0; Used to count , in total CNT individual 
    
L1:
    CMP CL,CNT; Whether the number of comparisons has reached the end 
    JE EXIT; Jump to the end plate 
    	
    MOV DH,[BX]
	 
    CMP DH,0; The judgment is positive 、 Negative or 0
    JE ZERO; It's zero 
    JNS POSITIVE; It means a positive number 
    JS NEGATIVE; A negative number     	
 
ZERO:
	INC CNT0
	INC BX
	INC CL
	JMP L1
POSITIVE:
	MOV [SI],DH
	INC BX
	INC SI
	INC CL
	JMP L1 
NEGATIVE:
	MOV [DI],DH
	INC BX
	INC DI
	INC CL
	JMP L1
EXIT:
    MOV AH,4CH
    INT 21H
CODE ENDS
    END START