Huge Versus Big Real Mode
As described above, unreal mode usually involves using one or more data selectors to address data in memory more efficiently. This has been common practice and often referred to as "big" real mode. "Huge" real mode is attained by, in addition, loading the code selector (CS) from a descriptor allowing access to the whole memory and having the 32-bit attribute ("D" bit) set to one. This rarely used "mode" presents some advantages but it is more difficult to set up, since real mode interrupts do not automatically preserve the high sixteen bits of the extended instruction pointer, EIP.
Read more about this topic: Unreal Mode
Famous quotes containing the words huge, big, real and/or mode:
“My wife, my wife! what wife? I have no wife.
O insupportable! O heavy hour!
Methinks it should be now a huge eclipse
Of sun and moon, and that th’ affrighted globe
Should yawn at alteration.”
—William Shakespeare (1564–1616)
“Politics at all times lead to bloody wars, and not only politics, but also religions as well as social and economic systems of all times are spattered with blood. Invariably the big ones devoured the little ones, and the little ones the tiny ones.”
—Friedrich Dürrenmatt (1921–1990)
“The Troubles are a pigmentation in our lives here, a constant irritation that detracts from real life. But life has to do with something else as well, and it’s the other things which are the more permanent and real.”
—Brian Friel (b. 1929)
“Curiously enough, it seems to be only in describing a mode of language which does not mean what it says that one can actually say what one means.”
—Paul Deman (1919–1983)