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Machine translation
1. (WO1979000035) APPARATUS FOR USE WITH A DATA PROCESSOR FOR DEFINING A CYCLIC DATA BUFFER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000035    International Application No.:    PCT/US1978/000017
Publication Date: 08.02.1979 International Filing Date: 22.06.1978
IPC:
G06F 13/00 (2006.01), G06F 5/10 (2006.01), G11C 7/00 (2006.01), H03H 17/06 (2006.01), G06F 7/72 (2006.01)
Applicants:
Inventors:
Priority Data:
814041 08.07.1977 US
Title (EN) APPARATUS FOR USE WITH A DATA PROCESSOR FOR DEFINING A CYCLIC DATA BUFFER
(FR) APPAREIL UTILISE AVEC UNE MACHINE DE TRAITEMENT DES DONNEES DEFINISSANT UNE DONNEE TAMPON CYCLIQUE
Abstract: front page image
(EN)Apparatus for designating contiguous memory locations (e.g., locations 1000-1004) in a data memory (90) as a circular data buffer. A limit register defines the topmost buffer (L, e.g., location 1004) and a modulus register (40) defines the length (M) of the buffer. Circuitry (60) detects violations of the upper boundary (L) of the buffer and subtracts the buffer length (M) from the address. Boundary violation circuitry also controls execution of a data processor (10) instruction which conditionally subtracts the buffer length from the address.
(FR)Appareil pour designer des adresses de memoire contigues (par exemple, adresses 1000-1004) dans une memoire de donnees (90) comme donnee tampon circulaire. Un registre a limite definit le tampon le plus eleve (L, par exemple, adresse 1004) et un registre a module (40) definit la longueur (M) du tampon. Un ensemble de circuits (60) detecte des violations de la limite (L) superieure du tampon et soustrait la longueur du tampon (M) de l"adresse. Les circuits de violation de la limite commandent egalement l"execution d"une instruction a la machine de traitement des donnees (10) qui soustrait conditionnellement la longueur du tampon de l"adresse.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)