sa_spl − enable write bus error interrupts

sa_spl()
sets the R2000 status register to enable write bus error interrupts
detected by the R2300 cpu board hardware.  Because of the R2020 write
buffers, bus errors on writes are detected after the R2000 store
instruction which initiated the write; therefore, bus errors on
writes are reported via interrupts.  When a fault has occurred,
the standalone fault handling code disables all interrupts and
invokes either the standard fault handler or a user declared handler
(see
The fault handler should determine the cause
of the fault and perform the appropriate action to terminate any
pending interrupt requests.
may then be called to re-enable write bus error interrupts.
will clear a pending write bus error if one is present at the time
it is called.
nofault(3spp), show_fault(3spp)