Re: [PATCH v6 06/10] util/bufferiszero: Improve scalar variant

[Philippe Mathieu-Daudé]

On 29/4/24 14:31, Richard Henderson wrote:
> On 4/29/24 05:18, Philippe Mathieu-Daudé wrote:
> > > +
> > > +    t = ldq_he_p(buf) | ldq_he_p(buf + len - 8);
> >
> > Here we read #0 and #31, ...
> >
> > > +    p = QEMU_ALIGN_PTR_DOWN(buf + 8, 8);
> > > +    e = QEMU_ALIGN_PTR_DOWN(buf + len - 1, 8);
> > > +
> > > +    /* Read 0 to 31 aligned words from the middle. */
> >
> > ... so here is #1 to #30?
>
> Not indexes, but count.  There may be zero words remaining in the 
> middle, etc.

Oh, got it, thanks!