符号位为 1输出个数------汇编语言

STACK1 SEGMENT STACK

DW 256 DUP(?)

STACK1 ENDS

DATA SEGMENT

NUMB DB 12H,88H,82H,89H,33H,90H,01H,10H,0BDH,01H

MES1 DB 'The number of negative is:$'

DATA ENDS

CODE SEGMENT

ASSUME CS:CODE, DS:DATA

START: MOV AX,DATA

MOV DS,AX

MOV DI,OFFSET NUMB

XOR BH,BH

MOV CX,10D

A1: MOV AL,[DI]

TEST AL,80H

JE A2

INC BL

A2: INC DI

LOOP A1

MOV DX,OFFSET MES1

MOV AH,09H

INT 21H

MOV AL,BL

AND AL,0F0H

MOV CL,4

SHR AL,CL

CMP AL,0AH

JB C2

ADD AL,07H

C2: ADD AL,30H

MOV DL,AL

MOV AH,02H

INT 21H

MOV AL,BL

AND AL,0FH

CMP AL,0AH

JB C3

ADD AL,07H

C3: ADD AL,30H

MOV DL,AL

MOV AH,02H

INT 21H

WAIT1: MOV AH,1

INT 16H

JZ WAIT1

MOV AX,4C00H

INT 21H

CODE ENDS

END START