11.11.2012 01:10, Bart Oldeman пишет:
> On 10 November 2012 15:39, Stas Sergeev wrote:
>
>> Could you just, if possible, give a simple example that
>> will show that the problem is unsolvable?
> just think of movsb from vga to vga memory. Read and write bytes are
> different but can't be mapped differently.
At least for the trivial, non-overlapping case of
movsb I don't see a problem.
Do you mean an overlapping case is problematic,
which is where you wrote some value and immediately
read it back, without a chance to recalculate it for
proper reading?

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