8086汇编_将ASCII码表示的十进制数转换为二进制数

4ch中断是退出程序，好像没有输出数字的中断，

02是输出一个字符，9是输出字符串，而且你的程序应该只烂陪是把字符串转铅滑换程序数字，并没有把十进制转换成二进制。这样试试饥激蠢

LOOP

LOOP1

MOV

[DI],AX

MOV

AH,9

INT

21H

MOV

AH,4CH

INT

21H

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DATA1 SEGMENT

NUM DW 13579

ASC DB ?, ?, ?, ?

DATA1 ENDS

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CODE SEGMENT PARA PUBLIC

ASSUME CS:CODE, DS:DATA1

START:

MOV AX, DATA1

MOV DS, AX

MOV BX, NUM

LEA DI, ASC

CALL HEX_ASC

MOV AH, 2

MOV DL, ASC + 0

INT 21H

MOV DL, ASC + 1

INT 21H

MOV DL, ASC + 2

INT 21H

MOV DL, ASC + 3

INT 21H

MOV AH, 4CH

INT 21H

====================================

HEX_ASC PROC NEAR

MOV CX, 0404H

CC: ROL BX, CL循环左移，慧裤将最高为郑碧段喊誉存到BL的低四位

MOV DL, BL

AND DL, 0FH

CMP DL, 10

JBBB

ADD DL, 7

BB: ADD DL, '0'

MOV [DI], DL

INC DI

DEC CH

JNZ CC

RET

HEX_ASC ENDP

====================================

CODE ENDS

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END START

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DATASEGMENT

PROMPT DB 'INPUT HEXADECIMAL: $'

HEX DB 5

NNN DB 0 实际输入的字符数

DB 5 DUP(?)

BIN DW ?

ERR DB 0AH, 0DH, 'ERROR ! I HAVE NO TIME TO PLAY WITH YOU ! $'

DATAENDS

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STACK1 SEGMENT PARA STACK

DW 20H DUP(0)

STACK1 ENDS

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CODESEGMENT

ASSUME CS:CODE, DS:DATA, ES:DATA, SS:STACK1

START:

MOV AX, DATA

MOV DS, AX

MOV AX, STACK1

MOV SS, AX

LEA DX, PROMPT

MOV AH, 09H

INT 21H

LEA DX, HEX输入ASCII码

MOV AH, 0AH

INT 21H

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MOV BIN, 0

LEA SI, HEX + 2

MOV CH, NNN

CONV: 代迟渗码转换

MOV BL, [SI]

CMP BL, 0DH

JZ END0 回车即结束

CMP BL, '0'

JB ERROR 小于纤旅'0'转移

CMP BL, '毁旦凳9'

JA ERROR 大于'9'转移

BIN1:

AND BL, 0FH转换二进制数

MOV BH, 0 弄成16位数

PUSH CX

MOV AX, BIN原来的数字乘以10

MOV CX, 10

MUL CX

ADD AX, BX 加上新输入的

MOV BIN, AX存结果

INC SI

POP CX

DEC CH

JNZ CONV

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DISP:

MOV DL, 13 显示回车

MOV AH, 2

INT 21H

MOV DL, 10 显示换行

MOV AH, 2

INT 21H

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MOV AX, BIN取来数字

MOV CX, 16 显示16位数

DDDD:

MOV DL, '0'先计划显示0

TEST AX, 8000H 测试最高位

JZ DDD1

INC DL 非0就显示1

DDD1:

PUSH AX

MOV AH, 2

INT 21H

POP AX

SHL AX, 1 左移

LOOP DDDD

JMP END0

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ERROR:

LEA DX, ERR

MOV AH, 09H

INT 21H

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END0:

MOV AH, 4CH

INT 21H

CODE ENDS

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END START

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