Assembly- 1st code

[geek@02]

Sorry, if this is not the right board.


.MODEL SMALL
.STACK
.CODE

mov ah, 1h
mov cx, 07h
int 10h
mov ah, 4ch
int 21h

END


I assembled above assembly code(copied it from a tutorial) on my windows xp, intel computer, and got an .obj file.
Then tried to link it but got the following warning and error messages on masm32:

first.obj : warning LNK4078: multiple ".data" sections found with different attributes (C0220040)
LINK : error LNK2001: unresolved external symbol _WinMainCRTStartup
first.exe : fatal error LNK1120: 1 unresolved externals

Why is this please?
Thanks.

[Dispater]

In your case the problem is that the linker you are using is too new. You are following a tutorial which is probably pretty old, it teaches how to write DOS applications (there is a difference between a pure DOS application and a console application). You can download an old version of link.exe here

You also have to change your program a little bit:

.MODEL SMALL 
.STACK 
.CODE 

Start:
mov ah, 1h 
mov cx, 07h 
int 10h 
mov ah, 4ch 
int 21h 

END Start

Compile with:

ml /c yourfile.asm
link yourfile.obj

Some useful links:
http://www.movsd.com - The masm32 package
http://radasm.visualassembler.com - A great IDE
http://home.t-online.de/home/Ollydbg/ - A debugger
http://board.win32asmcommunity.net - THE assembly board
http://win32asm.cjb.net - Some new tutorials

[geek@02]

Understood.
Thank you for the links.

[ober]

There is an active ASM board over at www.flashdaddee.com/forums

[geek@02]

Thanks again.