Hi!
23-Ноя-2004 17:25 [EMAIL PROTECTED] (Michael Devore) wrote to
[EMAIL PROTECTED]:
MD> code segment via our friend the alias selector. Currently EMM386 attempts
MD> to reset the cache after the self-modifying code by the old standby of
MD> JMPing to the next instruction. I'm hoping this feeble cache flush/update
MD> method still works with all the newest CPU pre-fetch doodads. It did work
AFAIK, all newer CPUs (starting from Pentium) syncronize code cache
with self-modifying code (SMC). This is why on newer CPUs you can't detect
pipe length through modifying followinf instructions. On the other side, I
hear, that on some CPUs to force cache resetting, should be performed _back_
jump.
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