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Re: MMX documentation
- To: Stan Shebs <shebs at apple dot com>
- Subject: Re: MMX documentation
- From: "Joseph S. Myers" <jsm28 at cam dot ac dot uk>
- Date: Wed, 3 Oct 2001 01:13:47 +0100 (BST)
- cc: Bernd Schmidt <bernds at redhat dot com>, <gcc-patches at gcc dot gnu dot org>
On Tue, 2 Oct 2001, Stan Shebs wrote:
> But that's the problem - the documentation isn't more detailed, just
> more voluminous. Saying that __builtin_ia32_psubb implements psubb,
> ad nauseum, isn't more useful than saying __builtin_ia32_@var{name}
> implements @var{name} for all @var{name}.
The documentation ought, for every case, to define unambiguously the
correspondence between the arguments of the builtin and those of the
machine instruction. (I don't know whether any of these instructions have
different operand order in Intel and GNU assembler syntax, but if they do
then defining this correspondence is even more important.)
--
Joseph S. Myers
jsm28@cam.ac.uk