From: Nathan Froyd <froydnj@codesourcery.com>
To: "Guan, Qiang" <QiangGuan@my.unt.edu>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Can anybody help me figure out what has been done about floating point multiply in QEMU?
Date: Mon, 23 May 2011 14:03:46 -0400 [thread overview]
Message-ID: <4DDAA182.2030008@codesourcery.com> (raw)
In-Reply-To: <2BF1F3C0C95FE042BC029856BB5FF244922F@SN2PRD0102MB142.prod.exchangelabs.com>
On 05/23/2011 01:36 PM, Guan, Qiang wrote:
> I want to figure out what is happening in emulating the floating point
> calculation in QEMU. I checked the codes in target-i386/translate.c, but I
> cannot find anything about floating point calculation, I can only find the
> emulation about integer "mul" or "div". My question is what did QEMU do when
> they need to emulate a floating point calculation? where are these codes?
All the code for manipulating floating-point numbers is in the fpu directory.
The target-i386 code that calls into those functions is in op_helper.c.
HTH,
-Nathan
prev parent reply other threads:[~2011-05-23 18:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-23 17:36 [Qemu-devel] Can anybody help me figure out what has been done about floating point multiply in QEMU? Guan, Qiang
2011-05-23 18:03 ` Nathan Froyd [this message]
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