Boots – shoes – and leggings
Patent
1989-10-18
1993-05-25
Dixon, Joseph L.
Boots, shoes, and leggings
364DIG1, 3642426, 364243, 3642566, 3642568, 364269, 36494492, 36496427, 3649647, G06F 1200, G06F 1300
Patent
active
052147762
ABSTRACT:
A multiprocessor system having global data replicated in all local memories, each local memory related to one of the system central processing units (CPUs), where consistency of the global data in each of the local memories is provided by a global write procedure according to which an agent CPUZ, willing to modify a global data in its own local memory, issues a write command on the system bus for performing the write operation in the local memory of another destination CPU of the system and characterizes the write command as a global write, so that all the CPUs connected to the system bus (including CPUZ) detect such command, perform such write operation in their related local memory and provide the destination CPU with a signal indicative of a performed write operation, so that the destination CPU, as "replier", may signal to CPUZ the successful execution of the global write. By this procedure, it is possible to use standard, commercially available system bus and interface circuits which require, for correct execution of the system bus protocol, the activation of both an "agent" or requesting processor and a "replier" or destination processor.
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Bagnoli Carlo
Casamatta Angelo
Lazzari Angelo
Bull HN Information Systems Italia S.p.A.
Dixon Joseph L.
Peikari Behzad James
Phillips J. H.
Solakian J. S.
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