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:
“Within the memory of many of my townsmen the road near which my house stands resounded with the laugh and gossip of inhabitants, and the woods which border it were notched and dotted here and there with their little gardens and dwellings, though it was then much more shut in by the forest than now.”
—Henry David Thoreau (1817–1862)
“Perhaps a man like you can’t realize what it is to have a conscience and no memory at all. Do you imagine it’s pleasant to be ashamed of something you can’t even remember?”
—Orson Welles (1915–1985)
“That you’re wavin’ from the backroads by the rivers of my memory ever smilin’
Ever gentle on my mind.”
—John Hartford (b.1937)