Electrical computers and digital processing systems: processing – Processing architecture – Microprocessor or multichip or multimodule processor having...
Reexamination Certificate
2005-03-08
2005-03-08
Kim, Kenneth S (Department: 2111)
Electrical computers and digital processing systems: processing
Processing architecture
Microprocessor or multichip or multimodule processor having...
C700S003000, C712S205000
Reexamination Certificate
active
06865663
ABSTRACT:
A method and system are described which provide flexible coupling between a coprocessor and a control processor. The system includes a coprocessor and a system control bus connecting the coprocessor with the control processor. The coprocessor has two modes of access. In the first mode of access, the coprocessor retrieves an instruction stored in instruction memory and, in the second mode of access, the coprocessor retrieves an instruction from the control processor. The system control bus provides a path for loading an instruction to the coprocessor's shadow instruction register. The coprocessor, upon retrieving an entry in its instruction memory associated with the shadow instruction resigter, determines whether to load the instruction as an address in its program counter or to load the contents of the shadow instruction register into the instruction decode register.
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Kim Kenneth S
Priest & Goldstein PLLC
PTS Corporation
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