Merge the x1000 and jz47xx exception handling code since they use
the same exception vectors and handlers. The interrupt handler is
now called from the common exception vector, but remains separate
for each board since they have different IRQ layouts.
The new exception handler can provide a stack traceback from the
interrupted code, rather than the (uninteresting) caller traceback
displayed by panicf. This allows you to see what led up to a null
pointer deref or division by zero, which makes it _much_ easier to
track down errors that occur in common leaf functions like strcmp.
Change-Id: I59a0ebb5e40fcb36505c3bfdb47f8cac2f9936b1
Cleaned up, rebased, and forward-ported from the xvortex fork.
(original credit to vsoftster@gmail.com)
Change-Id: Ibcc023a0271ea81e901450a88317708c2683236d
Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
I must have been blind and copied some intermediate file
instead of final version. No functional change, only fixes.
Change-Id: Icaa868225517662c88f8492b1f04808407853361
1) Avoid load/store delay slot by reorganizing instructions
in copy loops
2) Fix off-by-one error in cache initialization code.
This was harmless as it simply set line0 twice, now it sets
every cacheline only once.
3) Fix off-by-word error in .bss clearing loop.
The addiu in branch delay slot even if calculated is not seen
by the branch instruction itself, so the code did one word
too much in clearing.
4) Fix off-by-word error in deadbeefing stack.
See above.
Change-Id: Iabb09a55979de7aa2e2b9234273683fc7e9762c5
* Optimize & cleanup thread handling a bit
* Unify exception return and fix a potential bug
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20659 a1c6a512-1295-4272-9138-f99709370657
* Get rid of bug when interrupts are enabled
* Get threading to work (although with some weirdness)
* Other fixes/optimizations
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18512 a1c6a512-1295-4272-9138-f99709370657
* Make IHFSsplit compile under Windows
* Change SDRAM base address + remove hack for Onda VX747
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18395 a1c6a512-1295-4272-9138-f99709370657
* Overall cleanup (still needs work)
* Add preliminary USB support
* Add power off support
* Add preliminary MMU handling
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18348 a1c6a512-1295-4272-9138-f99709370657
