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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2001-08-09 21:04:29 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2001-08-09 21:04:29 +0000 |
| commit | ff19ae595773ba24ee8bdf8d581a573ecf3cba31 (patch) | |
| tree | 1a665a5e06440211743cb296b25d8afd1a5d2363 /cpukit/libmisc/monitor | |
| parent | 2001-08-09 Joel Sherrill <joel@OARcorp.com> (diff) | |
| download | rtems-ff19ae595773ba24ee8bdf8d581a573ecf3cba31.tar.bz2 | |
2001-08-09 Chris Johns <ccj@acm.org>
* cpu_asm.S: This patch was co-developed with Eric Norum
<eric.norum@usask.ca>. 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.
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