[J-core] Meetup in San Francisco

Rob Landley rob at landley.net
Sun Sep 18 22:04:17 EDT 2016


On 09/18/2016 12:14 PM, BGB wrote:
> OTOH: I am still left half-wondering if anyone would care if I tried to
> throw together a basic RTOS with SH as a target (although it would be a
> lot of effort, half tempted to try to do a mock up of something sort-of
> like QNX).

I've vaguely wondered for a while about porting xv6 to sh.

  https://pdos.csail.mit.edu/6.828/2016/xv6.html

If MIT is going to have a modern operating systems course based on that,
then we should have an equivalent processor design course that
interlocks with it. :)

> partial motivation is partly the levels of pain I need to go through to
> get RT stuff to work sort-of ok on Linux, and things like FreeRTOS
> lacking network and filesystem (and, I have previously implemented a lot
> of the same mechanisms as parts of previous projects).

In theory Google Fuchsia is a realtime system. In practice most things
start out as realtime systems because there's a very primitive scheduler
and no background processes so why NOT make it realtime. (If it grows
into something usable, that tends to fall by the wayside.)

Rob


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