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authorJoel Sherrill <joel.sherrill@OARcorp.com>2001-08-09 21:04:29 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2001-08-09 21:04:29 +0000
commitff19ae595773ba24ee8bdf8d581a573ecf3cba31 (patch)
tree1a665a5e06440211743cb296b25d8afd1a5d2363 /cpukit/libmisc
parent02e4dcd3a2fceb9cfbf805b3b2396e188329e164 (diff)
downloadrtems-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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