History memory control system

Details History memory control system History memory control system

1983-06-30

1985-12-17

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 1300

Patent

active

045595968

ABSTRACT:
A history control system in data processing system provided with a microprogram processing system. The micro-instructions executed by the microprogram processing system include a control field instructing freeze and release of a history memory. Freeze/release control of history memory based on hardware conditions and freeze/release control by micro-instructions are combined. Thereby, the collecting of internal state information by the history memory is controlled precisely.

REFERENCES:
patent: 4021779 (1977-05-01), Gardner

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