Memory
The Alpha has a 64-bit linear virtual address space with no memory segmentation. Implementations can implement a smaller virtual address space with a minimum size of 43 bits. Although the unused bits were not implemented in hardware such as TLBs, the architecture required implementations to check if they are zero to ensure software compatibility with implementations that implemented a larger or the full virtual address space.
Read more about this topic: DEC Alpha
Famous quotes containing the word memory:
“God gave us memory so that we might have roses in December.”
—J.M. (James Matthew)
“With a tongue like a razor he will kiss,
the mother, the child,
and we three will color the stars black
in memory of his mother
who kept him chained to the food tree
or turned him on and off like a water faucet....”
—Anne Sexton (1928–1974)
“She might have been old once and now, miraculously, young again—but with the memory of that other life intact. She seemed to know the world down there in the dark hall and beyond for what it was. Yet knowing, she still longed to leave this safe, sunlit place at the top of the house for the challenge there.”
—Paule Marshall (b. 1929)