User or Supervisor

[Gerke Kok]

Hmm, I'l have to find the place that turns it of then... Thanks, I'll look into it. I hope my boot-loader does nog turn it of...
wkr,
Gerke


*********** REPLY SEPARATOR  ***********

On 16/11/01 at 10:43 Eric Norum wrote:

>Gerke Kok wrote:
>> 
>> Hello RTEMS-gen68360 users,
>> I here have a strange question. Does the CPU-context_switch need to be
>run in Supervisor-mode or can it be run in user-mode as well. It looks
>like my system has trouble with this. Is traps to an interupt when the
>instruction movew d1,sr is executed. This is in the one in the m68k-BSP
>shared code.
>> My situation:
>> I use rtems-4.5.0 and a modified version of the gen68360-BSP
>> Tool-chain nicely provided by OAR (thanks a LOT!)
>> The board loads the code (hello.exe) via a propriety TFTP-client into
>memory starting at 0x408000 and starts executing it.
>
>RTEMS is superviser-only.
>As you discovered, lots of things will break if you try to run in user
>mode.
>
>-- 
>Eric Norum                                 eric.norum at usask.ca
>Department of Electrical Engineering       Phone: (306) 966-5394
>University of Saskatchewan                 FAX:   (306) 966-5407
>Saskatoon, Canada.