predecoding

English

Pronunciation

• IPA^(key): /ˌpriː.dɪˈkoʊ.dɪŋ/

Etymology 1

From pre- +‎ decoding.

Noun

predecoding (uncountable)

1. (computing) The process of partially decoding machine instructions prior to their storage in the instruction cache, typically to identify instruction boundaries, classify instruction types, and facilitate faster or parallel decoding during execution.
   • 1985, Steve Ciarcia, Ciarcia's Circuit Cellar, revised edition, volume 5, Circuit Cellar, page 32:

     It owes its simplicity to the predecoding of the I/O (input/output) slot address already provided on the Apple's main circuit board.

   • 2021 July 20, TutorialsPoint, “Parallel Decoding in Computer Architecture”, in (Please provide the book title or journal name):

     Predecoding shifts a part of the decoding task up into the loading phase of the on-chip instruction cache (I-cache)... A dedicated unit called the predecoded unit executes partial decoding and joins several decode bits to each instruction.

   • 2024, John Reuben, Resistive RAM and Peripheral Circuitry: An Integrated Circuit Perspective, John Reuben, page 103:

     Predecoding enables reduction of decoding latency and an area-efficient layout.

Etymology 2

Verb

predecoding

1. present participle and gerund of predecode