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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)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
13
Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
5
Methods or arrangements for data conversion without changing the order or content of the data handled
06
for changing the speed of data flow, i.e. speed regularising
10
having a sequence of storage locations each being individually accessible for both enqueue and dequeue operations, e.g. using random access memory
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
7
Arrangements for writing information into, or reading information out from, a digital store
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
17
Networks using digital techniques
02
Frequency-selective networks
06
Non-recursive filters
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
7
Methods or arrangements for processing data by operating upon the order or content of the data handled
60
Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations
72
using residue arithmetic
Applicants:
Inventors:
Priority Data:
81404108.07.1977US
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:
(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)