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:
“Perchance the time will come when we shall not be content to go back and forth upon a raft to some huge Homeric or Shakespearean Indiaman that lies upon the reef, but build a bark out of that wreck and others that are buried in the sands of this desolate island, and such new timber as may be required, in which to sail away to whole new worlds of light and life, where our friends are.”
—Henry David Thoreau (1817–1862)
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—Willis Goldbeck (1900–1979)
“The real secrets are not the ones I tell.”
—Mason Cooley (b. 1927)
“In most cases a favorite writer is more with us in his book than he ever could have been in the flesh; since, being a writer, he is one who has studied and perfected this particular mode of personal incarnation, very likely to the detriment of any other. I should like as a matter of curiosity to see and hear for a moment the men whose works I admire; but I should hardly expect to find further intercourse particularly profitable.”
—Charles Horton Cooley (1864–1929)