microprogramming


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microprogramming

[¦mī·krō′prō‚gram·iŋ]
(computer science)
Transformation of a computer instruction into a sequence of elementary steps (microinstructions) by which the computer hardware carries out the instruction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

microprogramming

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

microcode

A set of elementary instructions in a complex instruction set computer (CISC). The microcode resides in a separate high-speed memory and functions as a translation layer between the machine instructions and the circuit level of the computer. Microcode enables the computer designer to create machine instructions without having to design electronic circuits. Writing microcode is called "microprogramming," and the microcode for a given computer is called a "microprogram."

RISC computers do not use microcode, which is the reason why RISC compilers generate more instructions than CISC compilers.

Source Code to Machine Code to Microcode
When software is written, the source code is converted into machine instructions by assemblers and compilers. At execution time, the machine instructions are converted into microinstructions, and the microinstructions cause transistors to open and close in the circuits. See microinstruction, CISC and RISC.
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References in periodicals archive ?
Proceedings of the 20th Annual Workshop on Microprogramming and Microarchitecture, 183-198.
It is possible that he did not make any clear distinction in his mind between user-level programming and microprogramming. However, one would have expected to find some indication as to what operations would be avaiable to the programmer at user level.
The 1980's proved to be crucial turning point for traditional microprogramming. Without exception, modern-day RISC microprocessors are hardwired.
Further details are provided regarding architecture, performance, and microprogramming. (On the software side, Intel also has been working on a second-generation design for DVI, which will be portable across operating systems [15].
MICRO-23: 23rd Annual International Symposium and Workshop on Microprogramming and Microarchitecture, November 27-29.
Dr., Austin, TX 78759/Newsletter: PERFORMANCE EVALUATION REVIEW SIGMICRO Microprogramming A forum for microprogrammers, microarchitects and microcode support software developers.
November 27-29 ** * MICRO 23: 23rd Annual Workshop on Microprogramming and Microarchitecture.
June 15 MICRO-23: 23rd Annual International symposium and Workshop on Microprogramming and Microarchitecture, November 27-29.
MICRO-23: 23rd Annual International Symposium and Workshop on Microprogramming and Microarchitecture, November 27-29, Submit five copies of full-length papers (maximum 20 double-spaced pages) or short papers (10 pages) to Chis Papachristou, MICRO-23 General Chair, Case Western Reserve University, Comp.
MICRO-23: 23rd Annual International Symposium and Workshop on Microprogramming and Microarchitecture, November 27-29, Submit 5 copies of full length papers (maximum 20 double spaced pages) or short papers (10 pages) to Chis Papachristou, MICRO-23 General Chair, Case Western Reserve University, Comp.