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computers / comp.sys.atari.st / Re: EmuTOS on VCS

SubjectAuthor
* Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)Francois LE COAT
`* Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)Vincent Rivière
 `- Re: EmuTOS on VCSFrancois LE COAT

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Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)

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From: lec...@atari.org (Francois LE COAT)
Newsgroups: comp.sys.atari.st
Subject: Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)
Date: Sun, 5 Jun 2022 15:45:15 +0200
Organization: Aioe.org NNTP Server
Message-ID: <00454b95-6f71-c06c-182a-3ed9df4e8a09@atari.org>
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 by: Francois LE COAT - Sun, 5 Jun 2022 13:45 UTC

Hi,

Is EmuTOS portable on CPU x86 and the ATARI VCS platform, where it
is originating, since there is GEM on the Amstrad PC 1512 thanks
to Digital Research ? The ATARI VCS is a well defined architecture,
that allows to boot many different operating systems. Why not EmuTOS ?

Thanks,

Francois LE COAT writes:
> What about proposing a complete ATARI development system, based on
> GNU/GCC 3.3.6 ? The GNU/GCC community has almost abandoned the m68k
> processor target. We will probably have to migrate to llvm/clang
> system if we want to develop for ATARI compatible computers, further ...
>
> Personally I can't use GNU/GCC more recent version than 3.3.6, to
> build my ATARI software. And I'm probably not an isolated case ...
>
> We need a free reference ATARI system development kit, that would
> allow building all software, including historical devels like mine :-)
>
> The ATARI devels, and system software are not evolving in a good way !
> Because it is based on evolution of GNU/GCC, that neglects m68k target.

Best regards,

--
François LE COAT
Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/

Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)

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From: vincent....@freesbee.fr (Vincent Rivière)
Subject: Re: EmuTOS on VCS (was: GNU/GCC 3.3.6)
Newsgroups: comp.sys.atari.st
References: <366b1aa6-38c9-3584-1231-2e7251f5275f@atari.org>
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 by: Vincent Rivière - Mon, 6 Jun 2022 06:57 UTC

On 05/06/2022 à 15:45, Francois LE COAT wrote:
> Is EmuTOS portable on CPU x86 and the ATARI VCS platform, where it
> is originating, since there is GEM on the Amstrad PC 1512 thanks
> to Digital Research ? The ATARI VCS is a well defined architecture,
> that allows to boot many different operating systems. Why not EmuTOS ?

Indeed, Digital Research GEM sources were originally written for x86. EmuTOS
used them on 68000, and filled the gaps with a new BIOS for Atari ST, and a
lot of adjustments. Current EmuTOS sources only support 68000/ColdFire
processors. Porting it to a new CPU would require to rewrite the assembler
sources, and define a new API for user programs. Such OS would not run 68000
Atari programs, unless some emulation layer is provided.

So this is unlikely to happen.

--
Vincent Rivière

Re: EmuTOS on VCS

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From: lec...@atari.org (Francois LE COAT)
Newsgroups: comp.sys.atari.st
Subject: Re: EmuTOS on VCS
Date: Tue, 7 Jun 2022 16:00:22 +0200
Organization: Aioe.org NNTP Server
Message-ID: <t7nllm$5bb$1@gioia.aioe.org>
References: <366b1aa6-38c9-3584-1231-2e7251f5275f@atari.org>
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 by: Francois LE COAT - Tue, 7 Jun 2022 14:00 UTC

Hi,

Vincent Rivière writes:
> Francois LE COAT wrote:
>> Is EmuTOS portable on CPU x86 and the ATARI VCS platform, where it
>> is originating, since there is GEM on the Amstrad PC 1512 thanks
>> to Digital Research ? The ATARI VCS is a well defined architecture,
>> that allows to boot many different operating systems. Why not EmuTOS ?
>
> Indeed, Digital Research GEM sources were originally written for x86.
> EmuTOS used them on 68000, and filled the gaps with a new BIOS for Atari
> ST, and a lot of adjustments. Current EmuTOS sources only support
> 68000/ColdFire processors. Porting it to a new CPU would require to
> rewrite the assembler sources, and define a new API for user programs.
> Such OS would not run 68000 Atari programs, unless some emulation layer
> is provided.
>
> So this is unlikely to happen.

I'm a EmuTOS user, and I'm not involved in its developments... But
isn't it the goal of EmuTOS, to be available on as many hardware
configurations as it is possible ? It is being ported to the ARM CPU

<https://github.com/kelihlodversson/pTOS>

and it would be appreciated on newest ATARI console indeed. It only
contains 12% of assembly language according to the GitHub WEB site.

There's many different x86 hardware, and many different ARM hardware,
but the ATARI VCS is a unique one, and I suspect it would be simpler
porting EmuTOS to a well defined architecture like the VCS. I'm sure
it would be welcome by the ATARI new developers and new users =)

Don't you think so ?

Best regards,

--
François LE COAT
Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/

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