From: Peter Belm <peterbelm@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Mips: start.S Questions
Date: Fri, 21 Aug 2009 14:08:03 +0100 [thread overview]
Message-ID: <574bb010908210608h3e77eb4fj5f510754eb2333be@mail.gmail.com> (raw)
In-Reply-To: <m2skfl8gmb.fsf@ohwell.denx.de>
>
> Why should it? I presume the CPU starts at _start, so it will "b
> reset", i.e. branch (jump) to "reset" and be happy. Its only if the CPU
> jumps to one the reserved vectors that it will loop. And well, as they
> are reserved, this is a legal thing to do, no? As the purple port
> works, I'm pretty sure they do not usually get jumped to there ;)
I knew I must be missing something, I didn't see that the reset definition
comes straight under all the other vector calls, so _start just runs through
all the vectors if for some reason reset returns (twice) and would get
trapped because of RVECENT(romReserved,2).
I shouldn't have missed my morning coffee :-P thank you for your help.
--
Regards,
Peter Belm
next prev parent reply other threads:[~2009-08-21 13:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-21 11:34 [U-Boot] Mips: start.S Questions Peter Belm
2009-08-21 12:40 ` Detlev Zundel
2009-08-21 12:53 ` Peter Belm
2009-08-21 13:02 ` Detlev Zundel
2009-08-21 13:08 ` Peter Belm [this message]
2009-08-21 13:42 ` Detlev Zundel
2009-08-21 13:46 ` Peter Belm
2009-08-21 13:05 ` Chetan Nanda
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