翻訳と辞書
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・ installer
・ instance
・ instance variable
・ instantiate
・ instantiation
・ institut national de recherche en informatique et automatique
・ institute for global communications
・ institute of electrical and electronics engineers, inc.
・ instruction address register
・ instruction mnemonic
instruction prefetch
・ instruction scheduling
・ instruction set
・ instruction set architecture
・ instruction set processor
・ instrument
・ int
・ intcode
・ integer
・ integer specbaserate


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instruction prefetch : FOLDOC
instruction prefetch
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)



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