Fast table lookup apparatus for reading memory

Details Fast table lookup apparatus for reading memory Fast table lookup apparatus for reading memory

1975-04-30

1977-11-01

Zache, Raulfe B.

Boots, shoes, and leggings

340347DD, 364300, G06F 502, G06F 906

Patent

active

040568091

ABSTRACT:
Fast Table Lookup Apparatus For Reading Memory is disclosed for use in conjunction with a logic bus, a memory device, a microprocessor of the type which provides an output logic signal to the bus comprising the contents of an internal register and which includes apparatus for immediately reading the logic signals on the bus into the internal register of the microprocessor, including logic which is external to the microprocessor, for recognizing when the microprocessor provides such a logic signal output and for utilizing the register contents available to address a location within the memory device to cause the substitution of the contents of the memory location within the memory device, which conforms to the microprocessor internal register contents, for the contents of the microprocessor internal register on the bus, and all in sufficient time for the memory location contents to be read into the microprocessor as a part of the next input to the microprocessor.

REFERENCES:
patent: 3656178 (1972-04-01), DeMaine
patent: 3675211 (1972-07-01), Raviv
patent: 3694813 (1972-09-01), Loh et al.
patent: 3701108 (1972-10-01), Loh et al.
patent: 3717851 (1973-02-01), Cocke et al.

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