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flat assembler > Unix > Does as/gas have LOCAL like MASM?

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drhowarddrfine



Joined: 10 Jul 2007
Posts: 538
Does as/gas have LOCAL like MASM?
I don't recall if LOCAL is a macro in MASM either. Does anyone know a way to have labels for items on the stack?
Post 18 Nov 2007, 17:45
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bogdanontanu



Joined: 07 Jan 2004
Posts: 403
Location: Sol. Earth. Europe. Romania. Bucuresti
IF LOCAL is not implemented you can always try and use a STRUCTURE where you define the stacK layout in you PROC.


Code:

STRUC frame_stru
 local_1 dd ?
 local_2 dd ?
 local_3 dd ?
 ebp dd ?
 eip  dd ?
 arg_1 dd ?
 arg_2 dd ?
ENDS




Then you can access local variables by name like this:

Code:

mov eax,[ebp+frame_stru.local_1; or minus depending 




It is an ancient technique that was used before LOCAL have been implemented. You can always fall back to it when in need.

LOCAL is internally implemented in MASM (not a user macro). Same is true for my own assembler: SOL_ASM. FASM implements it as an user macro AFAIK. GAS does not have it either way but i guess you can implement it this way.
Post 18 Nov 2007, 17:52
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drhowarddrfine



Joined: 10 Jul 2007
Posts: 538
Thanks Bogdan. I was just looking at the docs and it seems what I want is called ".section" and its related directives. Not positive yet but it might do something similar to what you show above with the benefit of labels. If someone knows that's what I want.
Post 18 Nov 2007, 22:52
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Grincheux



Joined: 15 Apr 2008
Posts: 17
Location: Mathenay, France
I will perhaps tell a very bad thing, but could FASM (or an other program) convert MASM macros, because LOCAL and INVOKE exist with the same meaning on a macro form ?

I think that if we use FASM it is not for using a MASM clone.

_________________
____________Kenavo_________________

Grincheux
Post 16 Apr 2008, 09:56
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edfed



Joined: 20 Feb 2006
Posts: 4091
Location: brighter future, please.
there are some work done to support MASM syntax since 1.64 i think.

bu the best is to code without this syntax and start with sane bases, all in pure fasm syntax.

atchoum!
Post 16 Apr 2008, 09:58
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