flat assembler
Message board for the users of flat assembler.
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DJ Mauretto
Ciao
![]() Try this http://www.jalix.org/ressources/miscellaneous/~vrac/faqsys/docs/pentium.txt Test registers tr0 tr7 (386/486) don't exist anymore,in this document there are model specific registers of pentium among them are 12 test registers I do not think that standard. _________________ Nil Volentibus Arduum ![]() |
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DJ Mauretto
Read 10.6.2 section of intel386 manual for original test registers TR6 TR7
![]() http://www.x86.org/intel.doc/386manuals.htm _________________ Nil Volentibus Arduum ![]() |
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vid
I asked Agner Fog about this, and he told me direct access to BTB is only possible on old pentiums.
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tom tobias
vid wrote: ...I am interested in direct access to Branch Target Buffer... ![]() |
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vid
Quote: Does some malware seek to disrupt the normal sequence of issuance of instructions? No... I don't want to talk about this too much now, it's just an idea I will try to follow. Some time later i will publish all the stuff ready for pleasant reading. |
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IceStudent
vid wrote: Particulary, I am interested in direct access to Branch Target Buffer, which should be supposedly possible via Test Registers. Why not to use the MSR registers for it? You can to do it even in ring-3, via the NtSystemDebugControl(SysDbgReadMsr). |
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revolution
IceStudent wrote: Why not to use the MSR registers for it? |
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