Changeset 256226b in rtems

2001-08-09 Chris Johns <ccj@…>

• cpu_asm.S: This patch was co-developed with Eric Norum <eric.norum@…>. It closes a one instruction window on some m68k CPU cores. It fixes symptoms seen as:

1) No more `interrupt handler invoked twice for

a single interrupt'.

2) No more `lockup when mc68360 CPM and PIT interrupts

are at different levels'.

It does insert a little more overhead on machines without hardware
interrupt stacks but correctness has a price.