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Re: [Qemu-devel] 3 new x86 instructions
From: |
Torbjorn Granlund |
Subject: |
Re: [Qemu-devel] 3 new x86 instructions |
Date: |
Mon, 14 Jan 2013 19:14:18 +0100 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) |
Richard Henderson <address@hidden> writes:
> MULX implies a bunch of other instructions due to CPUID flag grouping.
> ADCX and ADOX can be implemented separately. None of these and the
> other instructions in the MULX group look very complex.
I've got a patch for (most of?) the bmi[12] insns:
git://repo.or.cz/qemu/rth.git x86-next
This includes general support for the VEX prefixes.
Nice!
Is it in such a state that grabbing that repo and building a
qemu-system-x86_64 would give me MULX support?
I realise things might not be as stable as a release, but I can deal
with that.
But before I did anything else for the adx extension,
I thought I'd have a look back at Paolo's eflags optimization
patch series that he posted in October. Otherwise we'll
not be able to get really good emulation of these insns.
I see. ADCX and ADOX are several years away, IIUC.
--
Torbjörn