Branch tracing generator device and method for a...

Details Branch tracing generator device and method for a... Branch tracing generator device and method for a...

2008-07-22

2008-07-22

Huisman, David J (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Specialized instruction processing in support of testing,...

C717S128000

Reexamination Certificate

active

07404069

ABSTRACT:
A device generates an address branch trace for a microcontroller unit, a microprocessor or a data processing unit having a set of instructions including at least one predicated instruction and at least one instruction of the expanded type. The device includes: a first block to receive a first signal representative of an actually executed instruction; a second block to receive a second signal representative of an expanded instruction; a third block to receive a third signal representative of a discontinuity branch between a source address and a destination address of a program executed by the microcontroller, microprocessor or data processing unit; at least one register to store consecutive addresses pointed to by a program counter; a fourth block to process the first, second and third signals in order to determine a pair having a source address and a destination address for an address branch, when appropriate; and a storage unit to store said address pair.

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patent: 2003/0051122 (2003-03-01), Sato
patent: 2003/0135719 (2003-07-01), DeWitt et al.
patent: 1 091 298 (2001-04-01), None

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