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Re: [Qemu-devel] ix64 target support
From: |
Johannes Schindelin |
Subject: |
Re: [Qemu-devel] ix64 target support |
Date: |
Tue, 28 Sep 2004 19:50:53 +0200 (CEST) |
Hi,
On Tue, 28 Sep 2004, Joe Batt wrote:
> qemu doesn't yet support a ix64 target. How far are we from that? Is
> anyone working on it? Is it as simple as implementing some extra
> opcodes or are there fundamental issues?
There is nobody working on an ix64 target that I know of. BTW, you mean
x86_64, don't you? It should be as "easy" as implementing the opcodes.
AFAIK, the 64-bit mode of Opteron is not just a few extra opcodes, but
instead a whole new mode (like protected mode). Also, you'd have to use a
few quirks to work with 64-bit numbers (for an example see op_smul_T1_T0
in target_sparc/op.c).
> I've implemented a simple sh2 emulator in a previous project; I
> understand just a little of how qemu might work. I may be able to help.
This sounds like a very cool project to me. Unfortunately, I am quite busy
at work, and my pet right now is to make QEmu work on an IRIX machine, but
I sure would like to see that target one day.
Ciao,
Dscho