Data processing system for hardware implementation of square ope

Details Data processing system for hardware implementation of square ope Data processing system for hardware implementation of square ope

1993-11-15

1996-01-23

Chan, Eddie P.

Boots, shoes, and leggings

364813, 364258, 364262, 364DIG1, 327349, 395494, G06F 7552

Patent

active

054870240

ABSTRACT:
A data processing system for performing square operations includes a data processor such as a digital signal processor (DSP) and a memory system. The DSP has two data paths for fetching two operands of an instruction from locations specified by two addresses, which may be required for an operation such as a multiply operation. A fetch from the second data path is delayed in response to a wait signal. The memory system includes at least two memory portions. Data from the two memory portions are multiplexed onto the two data paths in response to a first portion of the respective addresses. If the first portions of both addresses are equal, and if second portions are unequal, the wait signal is activated. If the second portions of the addresses are equal, such as during a square operation, the wait signal is inactive and data is simultaneously read by both data paths.

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patent: 4891779 (1990-01-01), Hasebe
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patent: 5210710 (1993-05-01), Omura
"A Digital Signal Processor with IEEE Floating-Point Arithmetic" by Sohie, G. and Kloker, K., IEEE Micro, vol. 8, No. 6, Dec. 1988, pp. 49-67.

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