Re: memory operation operand len

By reading the class bxInstruction_c you cannot know a thing, especially
because some instructions access memory multiple times (FXSAVE, REP MOVS) or
access variable amount of bytes (VMASKMOV).

I am not talking about many memory access cases which not related to any
instruction (page walks, descriptors reads and other system stuff).

Also before the memory access actually happen an instruction might fault so
the memory access won't happen.

But what do you want to do ?

Might be I can help ...

If you searching to lock memory before memory access happens you can look
for BX_NOTIFY_LIN_MEMORY_ACCESS and BX_NOTIFY_PHY_MEMORY_ACCESS all around
the code.

Stanislav

-----Original Message-----
From: Xin Tong [mailto:[email protected]] 
Sent: Friday, October 19, 2012 9:06 PM
To: [email protected]
Subject: [Bochs-developers] memory operation operand len

what is the best way to figure out the length of the memory a memory
operation is going to access in BOCHS ? I read the class bxInstruction_c. it
does not seem to provide anything to do that ?

Xin

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