Hello,
Thanks for spotting that, indeed, the reset vector routine does not set
R0 to zero. I will correct that. All other issues are more than
welcomed! If you can send them before the weekend we can mention them on
the project meeting.
I think we could add a configuration option for eCos to build code
without delay slots. Diffs describing your modifications will help a lot
if you could be so kind and share them.
Best regards!
Piotr
W dniu 2012-10-10 20:52, R. Diez pisze:
Hi Piotr:
I am trying to get eCos up and running on my OR10 CPU, which does not
have jump delay slots. I'm starting with a Redboot test project that I
was playing with some months ago.
I noticed that routine FUNC_START(start) in vectors.S assumes that R0 is
initialised to zero on start-up, which is not always the case.
Could you add the following instruction before "l.ori r3,r0,SPR_SR_SM"
in that function?
l.movhi r0, 0
If you're still maintaining the eCos port I'll post a few other minor
issues I've seen so far.
Thanks,
rdiez
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