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Re: [Qemu-trivial] [Qemu-devel] [PATCH] qemu-timer: Don't use RDTSC on 3
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-trivial] [Qemu-devel] [PATCH] qemu-timer: Don't use RDTSC on 386s and 486s |
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Date: |
Fri, 23 Nov 2012 15:38:54 +0000 |
On 23 November 2012 15:31, Jamie Lokier <address@hidden> wrote:
> x86 instruction sets haven't followed a linear progression of features
> for quite a while, especially including non-Intel chips, so it stopped
> making sense for GCC to indicate the instruction set in that way.
If you're going to go down that route you need to start defining
#defines for features then, so we could say defined(__rdtsc__)
or defined(__cmov__) and so on. I don't see any of those either :-(
-- PMM