[Lazarus] Faster than popcnt [[Re: UTF8LengthFast returning incorrect results on AARCH64 (MacOS)]]

[Marco van de Voort]

On 30-12-2021 01:29, Marco van de Voort via lazarus wrote:
>
>
>  (P4 and Clawhammers) to test instruction sets.

64-bit supporting Pentium 4's of course, since this is a 64-bit only test.

Claw/Sledgehammer is the first iteration of Athlon64 and of the x86_64 
architecture as a whole and misses some instructions (like SSE3) that 
all other 64-bit capable CPUs have.