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:
“I remember her on the screen, huge as a colossus doll, mincing and whispering and simply hoping her way into total vulnerability.”
—Gloria Steinem (b. 1934)
“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 real tragedy of England, as I see it, is the tragedy of ugliness. The country is so lovely: the man-made England is so vile.”
—D.H. (David Herbert)
“Happiness is a matter of one’s most ordinary everyday mode of consciousness being busy and lively and unconcerned with self. To be damned is for one’s ordinary everyday mode of consciousness to be unremitting agonising preoccupation with self.”
—Iris Murdoch (b. 1919)