From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] ARM: Adding Maverick FPU support
Date: Fri, 4 Feb 2005 22:00:31 +0000 [thread overview]
Message-ID: <200502042200.32185.paul@codesourcery.com> (raw)
In-Reply-To: <1107544087.23911.8.camel@jmcmullan>
On Friday 04 February 2005 19:08, Jason McMullan wrote:
> So, I'm working on an emulation environment for the Cirrus Logic EP93xx
> processors with the Maverick Crunch(tm) FPUs.
>
> What files do I need to touch to add support for these instructions?
At minimum target-arm/op.c, target-arm/translate.c, and target-arm/cpu.h.
Note that that FPA is implemented differently. I uses the same emulator as the
linux kernel, hooked up to the undefined instruction interrupt. I wouldn't
advise doing this as performance is really awful. It's approximately 2x
slower than target soft-float, and I guess about 20x slower than a native
implementation.
Paul
next prev parent reply other threads:[~2005-02-04 22:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-04 19:08 [Qemu-devel] ARM: Adding Maverick FPU support Jason McMullan
2005-02-04 22:00 ` Paul Brook [this message]
2005-02-07 12:32 ` Fabrice Bellard
2005-02-07 12:55 ` Lennert Buytenhek
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