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Re: [Qemu-devel] ARM: Adding Maverick FPU support
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] ARM: Adding Maverick FPU support |
Date: |
Fri, 4 Feb 2005 22:00:31 +0000 |
User-agent: |
KMail/1.7.2 |
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