I need to move my message string to the end of program and the program need to output it correctly. How can I do that?
.model small
.stack 100h
.data
.code
main:
mov ax, @data
mov ds, ax
output:
jmp message
MOV dx, offset message
mov ah, 09h
int 21h
mov ah, 4Ch
int 21h
message:
db 'Hello, World!', '$'
end main
I need to move my message string to the end of program and the program need to output it correctly.
The way I understand this is, that you don't want your message string to be part of the .data section, but rather reside in the .code section.
Your current solution (?) jmp message can't help you as it will bypass the one thing that can output your string, and worse, it will begin executing garbage instructions formed by whatever bytes happen to be in the message string.
The jmp message clearly has to go, but there is one change that is required. The DOS.PrintString function 09h always expects a far pointer to the $-terminated string in the registers DS:DX, so you need to copy CS to DS since the string now resides in the code segment. That's all!
main:
push cs
pop ds
mov dx, offset message
mov ah, 09h
int 21h
mov ax, 4C00h
int 21h
message: db 'Hello, World!$'
end main