On Fri, 08 Jan 2021 10:35:24 +0000, Folderol wrote:

> On Thu, 7 Jan 2021 23:37:36 -0000 (UTC)
> Martin Gregorie  wrote:
>
>>On Thu, 07 Jan 2021 22:25:31 +0000, Folderol wrote:
>>
>>> On Thu, 7 Jan 2021 21:56:05 -0000 (UTC)
>>> Martin Gregorie  wrote:
>>>
>>>>On Thu, 07 Jan 2021 17:26:20 +0000, Folderol wrote:
>>>>
>>>>> Does anyone know if it is reasonably easy to get an RT kernel
>>>>> running on the Pi?
>>>>>
>>>>Have you talked to Microware? http://www.microware.com/
>>>>
>>>>They are in the process of porting OS/9 to the RaspberryPi and
>>>>Beaglebone.
>>>>
>>>>OS-9 was originally implemented on a 6809 and was designed from the
>>>>ground up as a real-time OS rather than a general purpose, multi user
>>>>one, which was how I used it. I ran the 68000 port for several years
>>>>as my main computer. This was on a 68020 system, where it did
>>>>everything I needed for several years (until the hardware collapsed)
>>>>and I was pleasantly surprised by its performance and the lack of bugs
>>>>in both OS and compilers/utilities.
>>>>
>>>>The only thing that moved me off it and onto Linux was the death of
>>>>its hardware.
>>>
>>> I had looked at it when I heard about it, but it would require a
>>> *total*
>>> rewrite of Yoshimi, and would no longer be free - so not going to
>>> happen on my watch!
>>
>>Does this mean that OS/9 doesn't have C++ yet?
>>Pity, because its process scheduler beats the crap out of Linux.
>>
>>
> It's not that, it's more a matter of all the linux based dependencies,
> the GUI and the drivers for the Pi GPU. Then there's the theading.
> Yoshimi uses 4 separate threads. Highest priority for the audio, lowest
> for the CLI and GUI.

Fair point.


--
--
Martin    | martin at
Gregorie  | gregorie dot org

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