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Re: [Qemu-devel] Can anybody help me figure out what has been done about
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From: |
Nathan Froyd |
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Subject: |
Re: [Qemu-devel] Can anybody help me figure out what has been done about floating point multiply in QEMU? |
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Date: |
Mon, 23 May 2011 14:03:46 -0400 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:5.0a2) Gecko/20110505 Thunderbird/3.3a4pre |
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