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.

--
W J G

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