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:
“No illusion is more crucial than the illusion that great success and huge money buy you immunity from the common ills of mankind, such as cars that won’t start.”
—Larry McMurtry (b. 1936)
“We may seem great in an employment below our worth, but we very often look little in one that is too big for us.”
—François, Duc De La Rochefoucauld (1613–1680)
“One forgets too easily the difference between a man and his image, and that there is none between the sound of his voice on the screen and in real life.”
—Robert Bresson (b. 1907)
“The only mode of obtaining an answer to these questions of the senses is to forego all low curiosity, and, accepting the tide of being which floats us into the secret of nature, work and live, work and live, and all unawares the advancing soul has built and forged for itself a new condition, and the question and the answer are one.”
—Ralph Waldo Emerson (1803–1882)