Read-out control system for a control storage device

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G06F 926

Patent

active

044082762

ABSTRACT:
In a read-out control system for a control storage device having a selector switch to select address information, a control storage means which responds to address information applied from the selector switch through a driver to produce a microinstruction from an address specified by the address information, a microinstruction register for holding a microinstruction read out from the control storage device, and an address register with a count function to increment the address information from the selector switch, the address register with a count function stores the address information currently stored in the control storage device at either the leading or trailing edge of a first supplementary clock signal produced in the machine cycle, and counts up the address information stored by +1 in synchronism with a second supplementary clock signal which rises or falls at the leading edge or the trailing edge of the machine clock signal representing the start of the next machine cycle.

REFERENCES:
patent: 3976977 (1976-08-01), Porter et al.
patent: 4079459 (1978-03-01), Grant, Jr.
patent: 4080648 (1978-03-01), Asano et al.
patent: 4099230 (1978-07-01), Mead
patent: 4103328 (1978-07-01), Dalmasso

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