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:
“At my nativity
The front of heaven was full of fiery shapes
Of burning cressets, and at my birth
The frame and huge foundation of the earth
Shaked like a coward.”
—William Shakespeare (1564–1616)
“Charles Foster Kane: Look, Mr. Carter. Here is a three-column headline in the Chronicle. Why hasn’t the Inquirer a three-column headline?
Carter: News wasn’t big enough.
Charles Foster Kane: Mr. Carter, if the headline is big enough, it makes the news big enough.”
—Orson Welles (1915–1985)
“The real weakness of England lies, not in incomplete armaments or unfortified coasts, not in the poverty that creeps through sunless lanes, or the drunkenness that brawls in loathsome courts, but simply in the fact that her ideals are emotional and not intellectual.”
—Oscar Wilde (1854–1900)
“Almost any mode of observation will be successful at last, for what is most wanted is method.”
—Henry David Thoreau (1817–1862)