WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1979000959) A COMPUTER SYSTEM HAVING ENHANCEMENT CIRCUITRY FOR MEMORY ACCESSING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000959    International Application No.:    PCT/US1979/000228
Publication Date: 15.11.1979 International Filing Date: 12.04.1979
IPC:
G06F 12/04 (2006.01)
Applicants:
Inventors:
Priority Data:
898564 21.04.1978 US
Title (EN) A COMPUTER SYSTEM HAVING ENHANCEMENT CIRCUITRY FOR MEMORY ACCESSING
(FR) SYSTEME INFORMATIQUE AYANT UN CIRCUIT D"ACCES DE MEMOIRE AMELIORE
Abstract: front page image
(EN)A computer system having enhancement circuitry for memory accessing, and has particular application to a system in which the number of bits which can be processed at one time by the processor is less than the number of bits in either a data word stored in the memory or the address associated with it. In a computer system (10) in accordance with the invention, enhancement circuitry (42) is connected between two buses (18, 20) which respectively connect a microprocessor (12) to a main memory (14) and to peripheral subsystems (16). The microprocessor is arranged to fetch a data word in said memory by loading an address in address registers (50, 54, 58, 62, 66) included in said enhancement circuitry (42) and is arranged to store a data word in said memory by loading an address in said address registers and a data word in data registers (52, 56, 60, 64, 68) also included in said enhancement circuitry.
(FR)Un systeme informatique possede un circuit ameliore d"acces de memoire, et s"applique particulierement a un systeme dans lequel le nombre de bits pouvant etre traites en une fois parle processeur est inferieur au nombre de bits d"un mot contenant des donnees stocke en memoire ou de l"adresse qui lui est associee. Dans un systeme informatique (10) selon l"invention, un circuit ameliore (42) est connecte entre deux bus (18, 20) qui etablissent, respectivement, la connexion entre un microprocesseur (12) et une memoire principale (14) et entre ledit microprocesseur et des sous-ensembles peripheriques (16). Le microprocesseur est concu d"une part, pour extraire un mot contenant des donnees de ladite memoire en chargeant une adresse dans des registres d"adresses (50, 54, 58, 62, 66) faisant partie dudit circuit d"amelioration (42) et, d"autre part, pour stocker un mot contenant des donnees dans ladite memoire en chargeant une adresse dans lesdits registres d"adresses et un mot contenant des donnees dans des registres de donnees (52, 56, 60, 64, 68) faisant egalement partie dudit circuit d"amelioration.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)