Sun Microelectronics
357
Glossary
This glossary defines some important words and acronyms used throughout this
manual. Italicized words within definitions are further defined elsewhere in the
list.
aliases:
Two virtual addresses are aliases of each other if they refer to the same physi-
cal address.
ASI:
Abbreviation for Address Space Identifier.
clean window:
A clean register window is one in which all of the registers contain either zero
or a valid address from the current address space or valid data from the cur-
rent address space.
coherence:
A set of protocols guaranteeing that all memory accesses are globally visible
to all caches on a shared-memory bus.
consistency:
See coherence.
context:
A set of translations used to support a particular address space. See also
MMU.
copyback:
The process of copying back a cache line in response to a hit while snooping.
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