Hi,
Eric Auer escribió:
Memory moving to/from HMA is quite fast, as is moving inside low RAM.
Enabling / disabling HMA (A20) can take time, but A20 is usually on
most of the time anyway, and as said, FreeDOS EMM386 even blocks
attempts to switch A20 off. MS EMM386 instead provides a fast A20
simulation created by page mapping.
Is there a technical reason (i.e. other than I don't have time/interest)
for this to be made so? If I were asked to implement it, mapping would
be my choice.
Aitor
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