To Display reverse of entered String > Assembly Program

To Display reverse of entered String > Assembly Program

Microprocessor

assume cs:code,ds:data

data segment

msg1 db 0Ah,0Dh, 'Enter a string:$'

msg2 db 0Ah,0Dh, 'Reverse of string:$'

msg3 db 08h

    db ?

    db 8 dup(?)

data ends

code segment

start:

mov bx,data

mov ds,bx

lea dx,msg1

mov ah,09h

int 21h

lea dx,msg3

mov ah,0Ah

int 21h

lea dx,msg2

mov ah,09h

int 21h

lea bx,msg3

inc bx

mov ch,00h

mov cl,[bx]

mov si,cx

print:

mov dl,[bx+si]

mov ah,02h

int 21h

dec si

loop print

mov ah,4ch

int 21h

code ends

end start

Output:

C:\TASM>tasm rev.asm

Turbo Assembler  Version 3.0  Copyright (c) 1988, 1991 Borland International

Assembling file:   rev.asm

Error messages:    None

Warning messages:  None

Passes:            1

Remaining memory:  460k

C:\TASM>tlink rev

Turbo Link  Version 2.0  Copyright (c) 1987, 1988 Borland International

Warning: no stack

C:\TASM>rev.exe

Enter a string:pratham

Reverse of string:mahtarp

C:\TASM>