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devel / comp.sys.acorn.misc / Re: What is known

SubjectAuthor
* What is knownStuart
`* Re: What is knownTheo
 `- Re: What is knownStuart

1
What is known

<59538ff233Spambin@argonet.co.uk>

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From: Spam...@argonet.co.uk (Stuart)
Subject: What is known
Newsgroups: comp.sys.acorn.misc
Date: Thu, 29 Jul 2021 10:38:39 +0100
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 by: Stuart - Thu, 29 Jul 2021 09:38 UTC

I've just received an Email from Elektor regarding a book 27.95 Euros.
Anyone know anything about this, is it likely to be of use, other than
purely academic purposes?

--------------------------------------------------------------------

"RISC-V is an Instruction Set Architecture (ISA) that is both free and
open. The RISC-V ISA is suitable for applications ranging from embedded
microcontrollers to supercomputers.
This new book will first describe the 32-bit RISC-V ISA, including both
the base instruction set as well as the majority of the currently-defined
extensions. The book will then describe, in detail, an open-source
implementation of the ISA that is intended for embedded
control applications."

-----------------------------------------------------------------------

--
Stuart Winsor

Tools With A Mission
sending tools across the world
http://www.twam.co.uk/

Re: What is known

<Qfv*fbkqy@news.chiark.greenend.org.uk>

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From: theom+n...@chiark.greenend.org.uk (Theo)
Newsgroups: comp.sys.acorn.misc
Subject: Re: What is known
Date: 29 Jul 2021 11:21:10 +0100 (BST)
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Originator: theom@chiark.greenend.org.uk ([212.13.197.229])
 by: Theo - Thu, 29 Jul 2021 10:21 UTC

Stuart <Spambin@argonet.co.uk> wrote:
> I've just received an Email from Elektor regarding a book 27.95 Euros.
> Anyone know anything about this, is it likely to be of use, other than
> purely academic purposes?

RISC-V is not ARM. It borrows a lot from the original reduced instruction
set MIPS designs of 1980s, but with an extensible instruction encoding.
Unlike ARM, x86, etc, the spec is free for anyone to implement in their own
silicon. Which people are doing - and so it's gained a certain amount of
hype (some justified, some not).

It's about as relevant to RISC OS as PowerPC is - ie not at all.

(until such time as RISC OS is able to run on non-ARM based processors -
since it can't even use 64-bit ARM processing, on current timelines that
would be approximately never)

Theo

Re: What is known

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From: Spam...@argonet.co.uk (Stuart)
Subject: Re: What is known
Newsgroups: comp.sys.acorn.misc
Date: Thu, 29 Jul 2021 12:54:37 +0100
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 by: Stuart - Thu, 29 Jul 2021 11:54 UTC

In article <Qfv*fbkqy@news.chiark.greenend.org.uk>,
Theo <theom+news@chiark.greenend.org.uk> wrote:
> It's about as relevant to RISC OS as PowerPC is - ie not at all

Thank you.

Of acedemic interest only then and not to me.

--
Stuart Winsor

Tools With A Mission
sending tools across the world
http://www.twam.co.uk/

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