From: Antti P Miettinen <ananaza@iki.fi>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: ARM page crossing inside insn? (Re: ARM ethernet fixes)
Date: Mon, 19 Dec 2005 11:40:36 +0200 [thread overview]
Message-ID: <p2gu0d5bf1n.fsf@doris.dna.fi> (raw)
In-Reply-To: p2g64pmf38p.fsf_-_@doris.dna.fi
Antti P Miettinen <ananaza@iki.fi> writes:
> __asm__ __volatile__ ("ldmia %0,{%1,%2}"
> : "=r" (base) : "0" (base), "r" (dummy));
Hmm.. thats probably wrong.. is this closer:
__asm__ __volatile__ ("ldmia %0,{%0,%1}"
: "+r" (base), "=r" (dummy));
or
__asm__ __volatile__ ("ldmia %2,{%0,%1}"
: "=r" (base), "=r" (dummy)
: "0" (base));
but anyway - how would the ldm register update be made atomic? Or
should the restart be able to continue in the middle? How are the
atomicity issues handled in qemu?
--
http://www.iki.fi/~ananaza/
next prev parent reply other threads:[~2005-12-19 9:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-14 22:17 [Qemu-devel] ARM ethernet fixes Daniel Jacobowitz
2005-12-15 0:00 ` Paul Brook
2005-12-18 16:51 ` Paul Brook
2005-12-18 17:25 ` Daniel Jacobowitz
2005-12-18 17:42 ` M. Warner Losh
2005-12-18 17:53 ` Paul Brook
2005-12-18 20:31 ` M. Warner Losh
2005-12-18 17:54 ` Daniel Jacobowitz
2005-12-18 18:50 ` Dave Feustel
2005-12-18 21:57 ` [Qemu-devel] " Antti P Miettinen
2005-12-18 22:29 ` [Qemu-devel] ARM page crossing inside insn? (Re: ARM ethernet fixes) Antti P Miettinen
2005-12-19 9:40 ` Antti P Miettinen [this message]
2005-12-19 15:24 ` [Qemu-devel] " Antti P Miettinen
2005-12-19 16:53 ` Daniel Jacobowitz
2005-12-19 19:25 ` Antti P Miettinen
2005-12-26 2:30 ` Antti P Miettinen
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