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)
“Look, mister, I’m so tired you’d be doin’ me a big favor if you’d blow my head off.”
—Samuel Fuller (b. 1911)
“I find that principles have no real force except when one is well fed.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“There are a thousand hacking at the branches of evil to one who is striking at the root, and it may be that he who bestows the largest amount of time and money on the needy is doing the most by his mode of life to produce that misery which he strives in vain to relieve.”
—Henry David Thoreau (1817–1862)