Communications: electrical – Digital comparator systems
Patent
1974-10-03
1976-11-09
Chapnick, Melvin B.
Communications: electrical
Digital comparator systems
G06F 914, G06F 918
Patent
active
039914046
ABSTRACT:
Apparatus for carrying out a set of macroinstructions by means of a microprogram in firmware. The apparatus controls the operating system of a digital computer which is adapted to carry out a set of macroinstructions. The macronistructions are carried out by means of a microprogram in firmware having a fetching phase and an execution phase. Both fetching and execution of macroinstructions are carried out by means of microprograms. One ROM is provided for storing a fetching and execution digital-word, associated with a macroinstruction and contains information relative to each phase respectively. Another ROM is provided for storing the actual microprograms for fetching and executing macroinstructions respectively.
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patent: 3859636 (1975-01-01), Cook
Brioschi Antonio
Zulian Ferruccio
Chapnick Melvin B.
Honeywell Information Systems Italia
Reiling Ronald T.
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