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:
“Civilized society is one huge bourgeoisie: no nobleman dares now shock his greengrocer.”
—George Bernard Shaw (1856–1950)
“You’re not big enough to do this to Rocco! I’ll kill you. You’ll never bring me in! Never!”
—Richard Brooks (1912–1992)
“Authoritarian political ideologies have a vested interest in promoting fear, a sense of the imminence of takeover by aliens—and real diseases are useful material.”
—Susan Sontag (b. 1933)
“Poor John Field!—I trust he does not read this, unless he will improve by it,—thinking to live by some derivative old-country mode in this primitive new country.... With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adam’s grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.”
—Henry David Thoreau (1817–1862)