microinstruction

mi·cro·in·struc·tion

M0273950 (mī′krō-ĭn-strŭk′shən)n. Computers A small, basic instruction, used in series to make up a high-level machine instruction.

microinstruction

(ˈmaɪkrəʊɪnˌstrʌkʃən) n (Computer Science) computing an instruction produced within an arithmetic and logic unit in accordance with a microprogram, that activates a particular circuit to perform part of the operation specified by a machine instruction

microinstruction

enUK

microinstruction

[¦mī·krō·in′strək·shən] (computer science) The portion of a microprogram that specifies the operation of individual computing elements and such related subunits as the main memory and the input/output interfaces; usually includes a next-address field that eliminates the need for a program counter.

microinstruction

A single instruction in microcode. It is the most elementary instruction in the computer, such as moving the contents of a register to the arithmetic logic unit (ALU). It takes several microinstructions to carry out one complex machine instruction (CISC). Also called a "micro-op" or "µop," microinstructions differ within the same computer family and even the same vendor. For example, although all are x86 chips, the microcode for Intel's Pentium 4, Pentium M and AMD's Athlon are not the same. The software programmer never sees microinstructions, and they are not documented for the public. See microcode.

单词	microinstruction
释义	microinstruction enUK mi·cro·in·struc·tion M0273950 (mī′krō-ĭn-strŭk′shən)n. Computers A small, basic instruction, used in series to make up a high-level machine instruction. microinstruction (ˈmaɪkrəʊɪnˌstrʌkʃən) n (Computer Science) computing an instruction produced within an arithmetic and logic unit in accordance with a microprogram, that activates a particular circuit to perform part of the operation specified by a machine instruction microinstruction enUK microinstruction [¦mī·krō·in′strək·shən] (computer science) The portion of a microprogram that specifies the operation of individual computing elements and such related subunits as the main memory and the input/output interfaces; usually includes a next-address field that eliminates the need for a program counter. microinstruction A single instruction in microcode. It is the most elementary instruction in the computer, such as moving the contents of a register to the arithmetic logic unit (ALU). It takes several microinstructions to carry out one complex machine instruction (CISC). Also called a "micro-op" or "µop," microinstructions differ within the same computer family and even the same vendor. For example, although all are x86 chips, the microcode for Intel's Pentium 4, Pentium M and AMD's Athlon are not the same. The software programmer never sees microinstructions, and they are not documented for the public. See microcode. ThesaurusSeemicrocode
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