Multiple module control store for use in a data processing syste

Details Multiple module control store for use in a data processing syste Multiple module control store for use in a data processing syste

1984-09-28

1986-05-06

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 926

Patent

active

045876118

ABSTRACT:
A sequencing apparatus and method employing two or more control stores for use within a data processing system. Where two-way branching exists, first and second control stores each provide control words for the common control of units within a data processing system. Whenever a branch is specified, a corresponding branch address is provided in the first control store for addressing the second control store. A nonbranch address is provided for addressing the first control store. The nonbranch address and the branch address each are employed to access concurrently control words from the first and second control stores. Upon the determination of the state of the branch condition, the appropriate one of the previously accessed control words is selected without delay and without need for an additional cycle to access the control stores.

REFERENCES:
patent: 4008462 (1977-02-01), Kanda
patent: 4079452 (1978-03-01), Larson et al.
patent: 4118773 (1978-10-01), Raguin et al.
patent: 4124893 (1978-11-01), Joyce et al.
patent: 4153933 (1979-05-01), Blume, Jr. et al.
patent: 4153937 (1979-05-01), Poland

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