I started studying C recently, using gcc as compiler, but I found out that it uses AT&T syntax for inline ASM, which is simply horrible!

So I would like to write my ASM functions in a file and then call them from another C file, anyone knows how to do that?
I think I read something about this in the forum but I cannot find it anymore...

Thank in advance!

Currently gcc supports intel's assembly syntax. Not only output it,inline too.
Put this

Code:

.intel_syntax noprefix

before intel's assembly,and use

Code:

-masm=intel

.
But don't forget to switch back to ATT's assembly after:

Code:

.att_syntax noprefix

EDIT:

To use non-inline assembly routines with gcc,it's very simple. Make you assembly generate objcode(on FASM,see "format" section from fasm's documentation) code and then compile with gcc to an executable as following:

Code:

gcc foo.o etc.c -o exe

Thanks a lot for the fast answer, I prefer to use non-inline assembly so I have some other questions:

Should the assembly routines have some particular name? (begin with underscore or something)

How do I pass parameters?

And if there is a return value where should it be?

The compiler deals with the values of registers or my routines should worry about restoring them?

If you could make me a very basic example, a function that adds two values and return the sum or something like that, I would find it truly useful since I know really a little of C!
Thank again!

Maybe you'd like to try this:
http://www.flatassembler.net/examples/msvc.zip

That does look exactly what I was searching for, thanks a lot!

I'll look at this files, I'll post here again in case I still have some doubts