gcc -S assembler syntax documentation

gcc -S assembler syntax documentation

[Riccardo Mazzei]

Would anyone kindly tell me where to find some manual about the assembler
syntax of .s files generated by gcc?
I'm interested in ix86 architectures, but a simple indication of where to
look for would be very precious...
I read the man and the info pages of gcc and as, but I found nothing about
this topic. Neither the Intel site is of any help, I suppose, since the
Intel assembler looks different from the gcc -S output.

Thanking you in advance

Rik

Re: gcc -S assembler syntax documentation

[Andrea 'Fyre Wyzard' Bocci]

Hi

if you like Intel syntax more, you can try using (quoting fron GCC manual)

>-mintel-syntax
>Emit assembly using Intel syntax opcodes instead of AT&T syntax.

fwyzard

Re: gcc -S assembler syntax documentation

[Paolo Carlini]

>Would anyone kindly tell me where to find some manual about the assembler
>syntax of .s files generated by gcc?

Hi Riccardo,

that syntax is very common in the *nix world and is known as the "AT&T Syntax".
You can start learning about it on:

    http://www.linuxdoc.org/HOWTO/Assembly-HOWTO/index.html

and, in particular:

    http://www.linuxdoc.org/HOWTO/Assembly-HOWTO/gas.html

Of course, the "(g)as" man pages/info pages are also recommended.

Cheers,
Paolo.