Integrated multiplier-accumulator circuit with preloadable accum

Details Integrated multiplier-accumulator circuit with preloadable accum Integrated multiplier-accumulator circuit with preloadable accum

1978-03-22

1980-07-29

Malzahn, David H.

Boots, shoes, and leggings

364768, G06F 748

Patent

active

042154162

ABSTRACT:
An integrated circuit having a preloadable accumulator register for accumulating the arithmetic sum of a succession of multiplier products therein. The circuit includes preload control logic for selecting data for storage in the accumulator register either from input terminals, from a summing circuit which receives current product data and accumulated product data, or from the accumulator register itself. Depending upon the conditions of a preload control signal and field selection signals, the preload control logic can either preload selected fields of the register with input data, leaving unselected fields intact, or can store current or accumulated product data in the register.

REFERENCES:
patent: 3840861 (1974-10-01), Amdahl et al.
patent: 4063082 (1977-12-01), Nussbaumer

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