Electronic calculator system having serial transfer of instructi

Details Electronic calculator system having serial transfer of instructi Electronic calculator system having serial transfer of instructi

1973-09-24

1976-03-23

Malzahn, David H.

Registers

Transfer mechanism

Traveling pawl

3401725, G06F 1300

Patent

active

039462161

ABSTRACT:
An electronic calculator system implemented in MOS/LSI semiconductor chips which contain data memory, an arithmetic unit, a read-only-memory for storing instruction words, and control circuitry for operating the system, all in monolithic semiconductor units. Parts of the instruction word are decoded at different locations on the chip to produce control functions, using logic arrays. To save space on the chip, the instruction word is transferred serially from an instruction register to the decode arrays where parts of the instruction word are stored and loaded into the arrays in parallel.

REFERENCES:
patent: 3641330 (1972-02-01), Hatano et al.
patent: 3700873 (1972-10-01), Yhap
patent: 3748451 (1973-07-01), Ingwersen
patent: 3760171 (1973-09-01), Wang et al.
patent: 3800129 (1974-03-01), Vmstattd

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