MMX documentation

[Joseph S. Myers]

On Wed, 3 Oct 2001, Bernd Schmidt wrote:

> This one I haven't done yet.  Someone else complained about the size of that
> table - should I keep it like it is now and change it to use @deftypefn, or
> should it be compressed somehow?

It could be slightly compressed by using @deftypefnx to list many related
functions together, but I think each function should have its own
@deftypefn/@deftypefnx header (and so an automatic index entry).

> ! The following machine modes are available for use with MMX built-in functions
>   (@pxref{Vector Extensions}): @code{V2SI} for a vector of two 32 bit integers,
>   @code{V4HI} for a vector of four 16 bit integers, and @code{V8QI} for a
> ! vector of eight 8 bit integers.  Some of the built-in functions operate on
> ! MMX registers as a whole 64 bit entity, these use @code{DI} as their mode.

I didn't notice this before, but we should be consistent about whether the
adjective is "32-bit" or "32 bit" (and similarly for other numbers); and I
had the impression that "32-bit" was the version that had been chosen
before (though the style guide in gcc.texi doesn't cover this).

-- 
Joseph S. Myers
jsm28@cam.ac.uk