The evil enter instruction
From your classmate Zev:
After some experimentation, we found that the enter instruction seems to be broken (using the push, mov, sub equivalent works fine). Some googling turned up the following discussion group thread:
http://groups.google.co.nz/group/comp.os.linux.development.system/browse_thread/thread/a057249198598933/a4f5251c9ef1e7a2?#a4f5251c9ef1e7a2 .
Everything is pretty much summed up with Linus' reply at the end. Bottom line: enter can cause segfaults on Linux and is a lot slower than its equivalent.
After some experimentation, we found that the enter instruction seems to be broken (using the push, mov, sub equivalent works fine). Some googling turned up the following discussion group thread:
http://groups.google.co.nz
Everything is pretty much summed up with Linus' reply at the end. Bottom line: enter can cause segfaults on Linux and is a lot slower than its equivalent.
posted by Mike at 8:35 PM
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