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Re: [Qemu-devel] [PATCH] Add e500 instructions dcblc, dcbtls and dcbtstl
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From: |
Scott Wood |
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Subject: |
Re: [Qemu-devel] [PATCH] Add e500 instructions dcblc, dcbtls and dcbtstl as no-op |
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Date: |
Fri, 1 Jul 2011 11:00:38 -0500 |
On Fri, 1 Jul 2011 17:39:49 +0200
Fabien Chouteau <address@hidden> wrote:
> No, I just implemented these no-oped instructions to get rid of an illegal
> instruction exception while running u-boot on my emulated p2010.
>
Heh, so someone *is* trying to run firmware. :-)
It would take a lot of low-level hardware simulation to get unmodified
U-Boot to run -- probably not worth it unless your goal is an environment
for debugging U-Boot.
It uses cache locking to create working space before the memory controller
is initialized, so it's really expecting those instructions to work.
-Scott