Electrical computers and digital processing systems: processing – Processing control – Specialized instruction processing in support of testing,...
Reexamination Certificate
2002-10-29
2010-11-09
Petranek, Jacob (Department: 2183)
Electrical computers and digital processing systems: processing
Processing control
Specialized instruction processing in support of testing,...
Reexamination Certificate
active
07831814
ABSTRACT:
The invention concerns a monitoring device (18′, 18″) integrated to the chip of a microprocessor (12) executing a series of instructions comprising message calculating means (36) for upon each execution of an instruction, producing a corresponding digital message; a buffer memory (34) for storing each message produced; and a plurality of output terminals (FA, FB, FC) connected to an external analyzing tool (24), each output terminal (FA, FB, FC) being associated with one type of instructions; the message calculating means (36) modifying the state of the output terminal (FA, FB, FC) associated with one type of instructions at the time when a message corresponding to said type of instructions is stored in the buffer memory.
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Jorgenson Lisa K.
Morris James H.
Petranek Jacob
STMicroelectronics S.A.
Wolf Greenfield & Sacks P.C.
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