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

[Richard Henderson]

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.


r~