Weird bug when decalring data

[donkey]

Hi Jeremy,

How's this for weird.

TestStuff.asm (note this is the whole file, no includes)

Code Select Expand

DATA SECTION
hInstance DD ?
WhatTheFu holycow WhatTheFlock

CODE SECTION
Start:
mov eax,[WhatTheFu]
ret

Code Select Expand

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

>go.bat

>C:\Programming\GoAsm\BIN\GoAsm.EXE "TestStuff.asm"

GoAsm.Exe Version 0.56.4n - Copyright Jeremy Gordon 2001/9 - JG@JGnet.co.uk
Output file: TestStuff.obj

>C:\Programming\GoAsm\BIN\GoLink.EXE /entry Start  "TestStuff.obj"

GoLink.Exe Version 0.26.10 beta3- Copyright Jeremy Gordon 2002/9-JG@JGnet.co.uk
Output file: TestStuff.exe
Format: win32 size: 1,024 bytes

I noticed this when I declared a GUID whose definition was in a header file I forgot to add to a project. GoAsm just filled the GUID with zeroes and continued on oblivious to the fact that the definition was wrong.

Edgar

[jorgon]

Hi Edgar

Yes this is because each of

WhatTheFu
holycow
WhatTheFlock

are regarded by GoAsm as data labels.  They are regarded as data labels because they are not found as anything else (they are not declarations of data, macros, equates, or definitions so they must be mere labels).

Hence the reference to WhatTheFu is valid (as a reference to a data label).

In GoAsm, you can have a data label (or code label for that matter), without having to follow the label with anything in particular.
And you can have as many data labels as you like at the same address.  This is useful if you want to have different names for a particular place in data, or particular piece of code.

[donkey]

Thanks Jeremy,

That explains it nicely, good feature actually. I am sure I can make use of it somewhere.