Sujet : Re: is Vax addressing sane today
De : chris.m.thomasson.1 (at) *nospam* gmail.com (Chris M. Thomasson)
Groupes : comp.archDate : 04. Oct 2024, 07:36:12
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vdo2ct$4les$1@dont-email.me>
References : 1 2 3 4 5 6 7 8
User-Agent : Mozilla Thunderbird
On 10/3/2024 9:23 PM, George Neuner wrote:
On Fri, 4 Oct 2024 00:48:43 -0000 (UTC), Lawrence D'Oliveiro
<ldo@nz.invalid> wrote:
On Thu, 03 Oct 2024 06:57:54 GMT, Anton Ertl wrote:
>
If the RISC companies failed to keep up, they only have themselves to
blame.
>
That’s all past history, anyway. RISC very much rules today, and it is x86
that is struggling to keep up.
You are, of course, aware that the complex "x86" instruction set is an
illusion and that the hardware essentially has been a load-store RISC
with a complex decoder on the front end since the Pentium Pro landed
in 1995.
Yeah. Wrt memory barriers, one is allowed to release a spinlock on "x86" with a simple store.
Another issue was the marketing. The RISC companies did not want to
damage their existing high-priced workstation and server business by
providing cheap CPUs for the masses ...
>
There was one RISC family that did indeed provide cheap CPUs for the
masses, even more so than x86, and that was ARM.
…