cuneiform team mailing list archive

["Steven Van Ingelgem" <steven@xxxxxxxxxxxxxx>]

Maybe this is an expensive operation, but I think MSVC is warning here
because it expects it immediately (maybe a safety before overriding it on
the next run?)

Is it possible you check out if I can disable this warning safely?


Thanks,
Steven

2008/12/31 Jussi Pakkanen <jpakkane@xxxxxxxxx>

> On Wed, Dec 31, 2008 at 2:10 PM, Steven Van Ingelgem
> <steven@xxxxxxxxxxxxxx> wrote:
>
> > I receive the following warnings (under MSVC 2005)
> >
> > kern\mmx\src\mmx_ind.c(348) : warning C4799: function 'MMX_anding' has no
> > EMMS instruction
> >
> > The reason following MSDN is:
> >
> > The function has at least one MMX instruction, but does not have an EMMS
> > instruction. When a multimedia instruction is used, an EMMS instruction
> > should also be used to clear the multimedia tag word at the end of the
> MMX
> > code. For more information on EMMS instructions, see Guidelines for When
> to
> > Use EMMS.
> >
> > Does anyone know a solution for this?
>
> I seem to remember that there is a function somewhere that only calls
> EMMS (called end_mmx or something similar). The idea is to call
> several MMX functions in a row and only at the end call EMMS, which is
> an expensive operation.
>
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