I seem to be having troubles getting the CVS snapshot up and running.
I've debugged it, and it seems that the problem stems from the fact that
$28 (gp) is modified in the SAVE_SOME macro to point to somewhere on the
stack (not sure why this occurs). Anyways, when I get my first system
timetick interrupt, the update_process_times function fails to get the a
valid task structure pointer and wipes out. Why are we adjusting gp
here, since it is explicitly expected to hold only current_thread_info?
sw $25, PT_R25(sp)
sw $28, PT_R28(sp)
sw $31, PT_R31(sp)
ori $28, sp, 0x1fff
xori $28, 0x1fff