[in-struhk-shuh n] /ɪnˈstrʌk ʃən/
the act or practice of or teaching; education.
knowledge or information imparted.
an item of such knowledge or information.
Usually, instructions. orders or directions:
The instructions are on the back of the box.
the act of furnishing with authoritative directions.
Computers. a command given to a computer to carry out a particular operation.
a direction; order
the process or act of imparting knowledge; teaching; education
(computing) a part of a program consisting of a coded command to the computer to perform a specified function
1801, from instruction + -al (1).
c.1400, instruccioun, “action or process of teaching,” from Old French instruccion (14c.), from Latin instructionem (nominative instructio) “building, arrangement, teaching,” from past participle stem of instruere “arrange, inform, teach,” from in- “on” (see in- (2)) + struere “to pile, build” (see structure (n.)). Meaning “an authoritative direction telling someone what to do; a document giving such directions,” is early 15c. Related: Instructions.
A sequence of bits that tells a computer’s central processing unit to perform a particular operation. An instruction can also contain data to be used in the operation.
- Instruction mnemonic
programming A word or acronym used in assembly language to represent a binary machine instruction operation code. Different processors have different instruction sets and therefore use a different set of mnemonics to represent them. E.g. ADD, B (branch), BLT (branch if less than), SVC, MOVE, LDR (load register). (1997-02-18)
- Instruction prefetch
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 […]
[in-struhk-shuh n] /ɪnˈstrʌk ʃən/ noun 1. the act or practice of or teaching; education. 2. knowledge or information imparted. 3. an item of such knowledge or information. 4. Usually, instructions. orders or directions: The instructions are on the back of the box. 5. the act of furnishing with authoritative directions. 6. Computers. a command given […]
- Instruction scheduling
The compiler phase that orders instructions on a pipelined, superscalar, or VLIW architecture so as to maximise the number of function units operating in parallel and to minimise the time they spend waiting for each other. Examples are filling a delay slot; interspersing floating-point instructions with integer instructions to keep both units operating; making adjacent […]