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From: kernel mailz <kernelmailz@googlemail.com>
To: linuxppc-dev@ozlabs.org, gcc-help@gcc.gnu.org,
	linux-kernel@vger.kernel.org
Subject: Inline assembly queries [2]
Date: Fri, 3 Jul 2009 12:14:41 +0530	[thread overview]
Message-ID: <abe8a1fd0907022344k2eb9874ejdbda3209a7cadf40@mail.gmail.com> (raw)

Hi,

Thanks for responding to my previous mail. A few more queries

a. What is the use of adding format specifiers in inline assembly
like
asm volatile("ld%U1%X1 %0,%1":"=r"(ret) : "m"(*ptr) : "memory");

b. using m or Z  with a memory address. I tried replacing m/Z but no change
Is there some guideline ?
gcc documentation says Z is obsolete. Is m/Z replaceable ?

- Manish

             reply	other threads:[~2009-07-03  6:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-03  6:44 kernel mailz [this message]
2009-07-03 17:40 ` Brad Boyer
2009-07-03 20:05   ` kernel mailz
2009-07-03 21:19     ` Andreas Schwab
2009-07-03 20:57   ` Andreas Schwab
2009-07-06  6:56     ` Gabriel Paubert
2009-07-07 12:40       ` Andreas Schwab
2009-07-07 13:46         ` Gabriel Paubert

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