Subject: Re: [parisc-linux] Re: [PATCH 3/6] C-language equivalents of include/asm-*/bitops.h

From: "David S. Miller" <[email-masked]>
Date: Sun, 29 Jan 2006 20:03:35 -0800 (PST)

From: Stuart Brady <[email-masked]>
Date: Sun, 29 Jan 2006 07:12:42 +0000

> There are versions of hweight*() for sparc64 which use POPC when
> ULTRA_HAS_POPULATION_COUNT is defined, but AFAICS, it's never defined.

That's right, the problem here is that no chips actually implement
the instruction in hardware, it is software emulated, ie. useless :-)