Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: New Pico2
Date: Tue, 13 Aug 2024 11:25:19 +0100
Organization: A little, after lunch
Lines: 33
Message-ID: <v9fcaf$3r8re$7@dont-email.me>
References: <lhsm7qFa6cfU2@mid.individual.net>
 <9778be7486d0f9b79e5110596f0b66631ae0ff09.camel@munted.eu>
 <v9e3fo$3gh6q$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Tue, 13 Aug 2024 12:25:19 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="edc0a0460d7f9068a3e7e928dff2ec67";
	logging-data="4039534"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX18a9bP3xuKw66oqT9CgSkYmQjMAaknDVsY="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:qPyMF8S5qDIUyvRpNl9b6uIwSgo=
In-Reply-To: <v9e3fo$3gh6q$1@dont-email.me>
Content-Language: en-GB
Bytes: 2245

On 12/08/2024 23:48, druck wrote:
> On 11/08/2024 22:32, Single Stage to Orbit wrote:
>> I've got a RISCV baremetal operating system I might bring up on this
>> device but looking at the datasheet for the RISCV processor used, it's
>> only got machine mode and user mode, no supervisor mode and no paging.
>> It does not even support any of the Sv pagetables so that's a
>> challenge.
> 
> The joys open "open source" CPUs with no standardised feature sets.
> 
>> Most interestingly enough, you can actually boot up with one RISCV core
>> and one ARM core, two RISCV cores or both ARM cores. Mixed processor
>> cores that'll be fun to see what we can do with that.
> 
> I think they did that for all the people who keep insisting they should 
> move to the "new future" of RISC V. Now they can find out how badly it 
> compares to a contemporary ARM core.
> 
...or not...

(I have no dog in this fight. I grew up on CISC. I use whatever works. 
All I care about is price power performance )

> ---druck

-- 
I would rather have questions that cannot be answered...
....than to have answers that cannot be questioned

Richard Feynman