Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Thomas Koenig <tkoenig@netcologne.de>
Newsgroups: comp.arch
Subject: Re: Why VAX Was the Ultimate CISC and Not RISC
Date: Sun, 9 Mar 2025 07:02:06 -0000 (UTC)
Organization: A noiseless patient Spider
Lines: 19
Message-ID: <vqjede$k5sa$1@dont-email.me>
References: <vpufbv$4qc5$1@dont-email.me> <vqbgp3$2s8lp$1@dont-email.me>
 <BMHyP.418532$2zn8.34844@fx15.iad>
 <2025Mar8.115236@mips.complang.tuwien.ac.at> <vqiqpn$d34q$1@dont-email.me>
 <722ff46f0aeaa4875d589fdc68750e08@www.novabbs.org>
Injection-Date: Sun, 09 Mar 2025 08:02:07 +0100 (CET)
Injection-Info: dont-email.me; posting-host="cf86517914ff84cfc8bef7c7a4010536";
	logging-data="661386"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX19/MHceSdw8dL1phumrEb7A2OKwngtPAHc="
User-Agent: slrn/1.0.3 (Linux)
Cancel-Lock: sha1:KlRAJ0vnhn3Q7cYIfhbx5zrLjy8=
Bytes: 1904

MitchAlsup1 <mitchalsup@aol.com> schrieb:
> On Sun, 9 Mar 2025 1:27:19 +0000, Torbjorn Lindgren wrote:
>
>>
>> Notice the common factor here - MT/Commodore was making a lot of
>> "working but only barely" chips and Commodore used them internally to
>> save money and also sold them to others which used them because, well,
>> they were frequently the cheapest.
>
> Radio Shack TRS-80 would buy every Z80 that did not make 2MHz
> operating frequency. They used something around 1.87 MHz so the
> CPU clock and the TV clock were the same clock.

RaptorCS buys POWER 9 chips where a higher number of cores failed
than permitted by IBM's specs, and then sells them as systems with
a lower working number of cores.

The main disadvantages are a) price and b) they are stuck with POWER
9 (due to the binary driver blob on Power 10, among other things).