Logic circuit for task processing

Details Logic circuit for task processing Logic circuit for task processing

1992-05-26

1994-01-18

Fleming, Michael R.

Excavating

371 223, 395725, 3649775, 364DIG2, G06F 106, G06F 1100

Patent

active

052806162

ABSTRACT:
In a logic circuit having clocked state latches and combinatorial logic for functional processing of a task in response to functional clocking of the state latches, the state latches are additionally interconnected to form a scannable chain of latches, and task switching logic is provided for suspending task processing by interrupting the functional clocking of the state latches and, during such suspension, scanning the state latches such that existing contents of the state latches defining a task state can be saved from the state latches or new contents defining a task state can be loaded into the state latches. The invention provides an efficient means for switching tasks being performed by a logic circuit in a multiprocessing enviornment.

REFERENCES:
patent: 4504784 (1985-03-01), Goel et al.
patent: 4697267 (1987-09-01), Wakai
patent: 4710933 (1987-12-01), Powell et al.
patent: 4802116 (1989-01-01), Ward et al.

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