functional unit

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functional unit

[¦fəŋk·shən·əl ′yü·nət]
(computer science)
The part of the computer required to perform an elementary process such as an addition or a pulse generation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

functional unit

A subsystem of the central processing unit of a computer. E.g. arithmetic and logic unit, memory address register, barrel shifter, register file.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
The CAD/CAM integration is a relatively new concept, that has been researched more in-depth only recently due to the availability of multiple execution units and larger processing power.
The first method reduces power in the integer execution unit with aggressive clock gating, after determining that the upper portion of functional unit is not needed.
Special facilities within this building include a courtroom, a transitional housing pod and the execution unit. The transitional housing pod, consisting of 20 two-bed cells, allows inmates to acclimate to a less restrictive environment while interacting with other inmates before being transferred to another maximum security facility within the system.
Details: (1) Project Execution Unit. Ministry of Works and Transport.
AMD's way around the execution unit bottleneck is to simply duplicate the storage units and integer execution hardware, giving each thread its own register file and integer units, and bulking up the processor.
Most instructions can be executed in a single cycle of 17.8 nanoseconds (ns.) Each execution unit (32-bit ALU, 3 2-bit MAC, 32-bit Shift) can execute an instruction in a single cycle.
The chip includes a separate execution unit and 128-bit register file for the AltiVec instructions.
After an instruction finishes execution in an execution unit, its results are forwarded to a completion buffer, and then subsequently written to the appropriate register file set when the instruction is retired from the completion buffer.
BWA Project Execution Unit. Bldg 1, Manor Lodge Complex.