follow Dictionary.com

How do you spell Hannukah?

instruction prefetch

instruction prefetch in Technology
architecture
A technique which attempts to minimise the time a processor spends waiting for instructions to be fetched from memory. Instructions following the one currently being executed are loaded into a prefetch queue when the processor's external bus is otherwise idle. If the processor executes a branch instruction or receives an interrupt then the queue must be flushed and reloaded from the new address.
Instruction prefetch is often combined with pipelining in an attempt to keep the pipeline busy.
By 1995 most processors used prefetching, e.g. Motorola 680x0, Intel 80x86.
[First processors using prefetch?]
(1998-03-29)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source

Word of the Day

Word Value for instruction

13
17
Scrabble Words With Friends