【汇编语言】统计负数个数并输出

【题目】已知有NUM个数存放在以BUFFER为首地址的字节存储区中，试统计其中负元素的个数，要求放到COUNT单元，编写完整程序。

DATA SEGMENT
    BUFFER DB 10,8,7,6,-2,-8
    NUM EQU $-BUFFER
    COUNT DB 0
DATA ENDS
STACK SEGMENT
    DW 256 DUP(?)
    TOP LABEL WORD
STACK ENDS        
CODE SEGMENT
    ASSUME: CS:CODE,DS:DATA
START:
    MOV AX,DATA
    MOV DS,AX
    
    LEA BX,BUFFER
    MOV CX,NUM
LOP:
    MOV AL,[BX]
    CMP AL,0
    JGE NEXT
    INC COUNT
    JMP NEXT
NEXT:
    INC BX
    LOOP LOP
    
    ADD COUNT,30H;数字转化为ascll码输出        
    MOV DL,COUNT
    MOV AH,02H
    INT 21H        
    MOV AH,4CH
    INT 21H
CODE ENDS
    END START