Microprocessor system with specialized instruction format

Details Microprocessor system with specialized instruction format Microprocessor system with specialized instruction format

1979-06-27

1981-09-22

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 304

Patent

active

042913721

ABSTRACT:
A microprocessor system which works in conjunction with an external application dependent logic module which logic module handles the specific requirements for data transfer to and from a peripheral device. The system includes a microprocessor which provides a program memory having a specialized instruction format. The instruction word format provides a single bit field for selecting either a program counter or a memory reference register as the source of memory addresses, a function field which defines the route of data transfers to be made, and a source and destination field for addressing source and destination locations.

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patent: 3634883 (1972-01-01), Kreidermacher
patent: 3753242 (1973-08-01), Townsend
patent: 4074352 (1978-02-01), Cook et al.
patent: 4106092 (1978-08-01), Millers
patent: 4109310 (1978-08-01), England et al.
patent: 4117536 (1978-09-01), Bodner
patent: 4162520 (1979-07-01), Cook et al.

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