From: "Vladimir Murzin" <murzin.v@gmail.com>
To: ratheesh kannoth <ratheesh.ksz@gmail.com>,
linux-c-programming-owner@vger.kernel.org,
linux-c-programming@vger.kernel.org, gcc-help@gcc.gnu.org
Subject: Re: c inline assembly
Date: Sat, 18 Feb 2012 06:26:00 +0000 [thread overview]
Message-ID: <123126874-1329546468-cardhu_decombobulator_blackberry.rim.net-1355742666-@b13.c12.bise7.blackberry> (raw)
Hi!
What is you question or request? ;-)
------Original Message------
From: ratheesh kannoth
Sender: linux-c-programming-owner@vger.kernel.org
To: linux-c-programming@vger.kernel.org
To: gcc-help@gcc.gnu.org
Subject: c inline assembly
Sent: 18 Feb 2012 10:01
I am using gcc on a 32bit intel machine. i have defined an inline function.
This function is inline . what all registers needs to pushed and
poped in the inline assembly so that the functions wont
disturb the registers in the function ( in which it is C inlined ).
inline unsigned long hello(unsigned long a)
{
int b;
asm ("movl %1, %%eax;
" movl %1, %%ebx;
"movl %1, %%ecx;
"movl %1, %%esi;
"movl %1, %%edi;
"movl %%eax, %0;"
:"=r"(b) /* output */
:"r"(a) /* input */
);
}
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Best wishes,
Vladimir Murzin
next reply other threads:[~2012-02-18 6:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-18 6:26 Vladimir Murzin [this message]
[not found] <CAGZFCEEaJ7ZsNAmWCF-nDtsjs70U7fqEVvTXEaCt9Tmk1dcemQ@mail.gmail.com>
2012-02-18 6:01 ` c inline assembly ratheesh kannoth
2012-02-19 5:14 ` Ian Lance Taylor
2012-02-19 16:46 ` Gedare Bloom
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