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Some Pentium III instructions not accessible from gas
From: |
Steve Underwood |
Subject: |
Some Pentium III instructions not accessible from gas |
Date: |
Thu, 25 Jan 2001 12:16:09 +0800 |
Hi,
Unless I am missing something, there are a bunch of instructions in the
Pentium III and IV which gas (2.10.1) cannot generate. These are the xmm
enhanced versions of the original MMX instruction set - things like:
pmaddwd %xmm0,%xmm1
The original Pentium MMX, 64 bit register versions, like:
pmaddwd %mm0,%mm1
are OK, but it seems the xmm versions didn't get added when the
completely new SSE instructions were. I assume I cannot be the first to
find this. Is anyone addressing the issue? Should I?
Regards,
Steve
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