Date: Thu, 13 Jul 1995 07:58:19 +0300
From: eliz AT is DOT elta DOT co DOT il (Eli Zaretskii)
To: guest AT dstn02 DOT dct DOT ac DOT uk
Subject: Re: inline assembly problem
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

>  main() { 
> 
>    _AX = 0;
>  }
>
> using
>
>  c:\source\tests> gcc m.c
>
> but I get the compiler errors:
>
>  m.c: In function 'main':
>  m.c:3 '_AX' undeclared <first use this function>
 
GCC doesn't support the _AX pseudo-registers a-la Turbo C.  You must use
inline assembly to do this, like this:

	asm("movw  $0, %ax");

Detailed description of GCC inline assembly facilities may be found in
the GCC Info files, under the node called ``Extended Asm''.