Selective operation of processing elements in a single...

Details Selective operation of processing elements in a single... Selective operation of processing elements in a single...

G - Physics

06

F

354/233

G06F 15/16 (2006.01) G06F 9/32 (2006.01) G06F 15/80 (2006.01)

Patent

CA 1267230

SELECTIVE OPERATION OF PROCESSING ELEMENTS IN A SINGLE INSTRUCTION, MULTIPLE DATA STREAM (SIMD) COMPUTER SYSTEM ABSTRACT OF THE DISCLOSURE A plurality of processing elements independ- ently operate in parallel on separate streams of data but in response to common instructions. In order to selec- tively and individually enable each processing element, a control register stage is provided for each. Each register may be controlled, as between its enabling and disabling states with respect to execution of a common instruction, by the results of a test performed by its associated processor in response to a prior instruction and by the complement of the test results. The system is especially adapted to support flow of control operators, such as IF/THEN constructs, IF/THEN/ELSE constructs and WHILE/DO loop constructs.

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