* [Qemu-devel] [patch] use bsr and bsf on x86_64 [not found] <8B966610-6ECA-40B6-8919-F93506F0C356@hotmail.com> @ 2008-09-15 16:09 ` C.W. Betts 2008-10-01 21:48 ` Aurelien Jarno 1 sibling, 0 replies; 2+ messages in thread From: C.W. Betts @ 2008-09-15 16:09 UTC (permalink / raw) To: qemu-devel This patch makes apic.c use asm code bsr and bsf on X86_64 processors. I haven't had any problems with this code… Index: hw/apic.c =================================================================== --- hw/apic.c (revision 5229) +++ hw/apic.c (working copy) @@ -109,7 +109,7 @@ { unsigned int ret = 0; -#if defined(HOST_I386) +#if defined(HOST_I386) || defined(HOST_X86_64) __asm__ __volatile__ ("bsr %1, %0\n" : "+r" (ret) : "rm" (value)); return ret; #else @@ -130,7 +130,7 @@ { unsigned int ret = 0; -#if defined(HOST_I386) +#if defined(HOST_I386) || defined(HOST_X86_64) __asm__ __volatile__ ("bsf %1, %0\n" : "+r" (ret) : "rm" (value)); return ret; #else ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [patch] use bsr and bsf on x86_64 [not found] <8B966610-6ECA-40B6-8919-F93506F0C356@hotmail.com> 2008-09-15 16:09 ` [Qemu-devel] [patch] use bsr and bsf on x86_64 C.W. Betts @ 2008-10-01 21:48 ` Aurelien Jarno 1 sibling, 0 replies; 2+ messages in thread From: Aurelien Jarno @ 2008-10-01 21:48 UTC (permalink / raw) To: qemu-devel On Mon, Sep 15, 2008 at 10:09:37AM -0600, C.W. Betts wrote: > This patch makes apic.c use asm code bsr and bsf on X86_64 processors. I > haven't had any problems with this code… Applied, thanks. > Index: hw/apic.c > =================================================================== > --- hw/apic.c (revision 5229) > +++ hw/apic.c (working copy) > @@ -109,7 +109,7 @@ > { > unsigned int ret = 0; > > -#if defined(HOST_I386) > +#if defined(HOST_I386) || defined(HOST_X86_64) > __asm__ __volatile__ ("bsr %1, %0\n" : "+r" (ret) : "rm" (value)); > return ret; > #else > @@ -130,7 +130,7 @@ > { > unsigned int ret = 0; > > -#if defined(HOST_I386) > +#if defined(HOST_I386) || defined(HOST_X86_64) > __asm__ __volatile__ ("bsf %1, %0\n" : "+r" (ret) : "rm" (value)); > return ret; > #else > > > > > > -- .''`. Aurelien Jarno | GPG: 1024D/F1BCDB73 : :' : Debian developer | Electrical Engineer `. `' aurel32@debian.org | aurelien@aurel32.net `- people.debian.org/~aurel32 | www.aurel32.net ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2008-10-01 21:48 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <8B966610-6ECA-40B6-8919-F93506F0C356@hotmail.com>
2008-09-15 16:09 ` [Qemu-devel] [patch] use bsr and bsf on x86_64 C.W. Betts
2008-10-01 21:48 ` Aurelien Jarno
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).