System and method for distributed multiprocessor communications
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United States of America Patent
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Jul 6, 1999
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N/A
app pub date -
Sep 11, 1997
filing date -
Feb 14, 1991
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Abstract
In a tightly coupled communication scheme based on a common shared resource circuit having a plurality of shared information registers and adapted particularly to a multiprocessing system having 2.sup.N CPUs, a method of performing a read-and-modify instruction. Data stored in a shared information register is read from the shared register, captured in a read and increment circuit and sent to the processor issuing the read-and-modify instruction. At the same time, a mathematical function is performed on the captured data is incremented and the result is written back into the shared information register.
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