问一下这个程序里面怎么把数组N和P，分成两行输出，数组中的个数又要怎么统计并且输出？

DATA SEGMENT
    M DB 1,2,3,-4,-5,6,-7,8,9,-10,-11,-12,13,14,-15,16,-17,-18,19,20
    P   DB  20  DUP (?)
    N   DB  20  DUP (?)
DATA ENDS
CODES SEGMENT
    ASSUME CS:CODES,DS:DATA
START:
    MOV AX,DATA
    MOV DS,AX
    LEA SI,M
    LEA DI,P
    LEA BX,N
    MOV CX,20

S:    MOV AL,[SI]
   
    CMP AL,0
    JG Z
    CMP AL,0
    JL F
    CMP AL,0
    JZ S
   

Z:    CMP CX,0
    JZ O
    MOV [DI],AL
    INC SI
    INC DI
    LOOP S
   

F:    CMP CX,0
    JZ O
    MOV [BX],AL
    INC SI
    INC BX
    LOOP S
   
        
O:    MOV AH,4CH
    INT 21H
CODES ENDS
END START