Data processor having selective breakpoint capability with...

Details Data processor having selective breakpoint capability with... Data processor having selective breakpoint capability with...

G - Physics

06

F

354/225, 354/230

G06F 11/28 (2006.01) G06F 9/30 (2006.01) G06F 11/36 (2006.01) G06F 13/10 (2006.01)

Patent

CA 1223079

A DATA PROCESSOR HAVING SELECTIVE BREAKPOINT CAPABILITY WITH MINIMAL OVERHEAD Abstract A data processor which communicates with a peripheral device and which selectively sets breakpoints with minimal overhead is provided. The data processor utilizes an instruction register to store instructions to be executed. Control means communicate with the peripheral device to selectively set a breakpoint in a software program. When repetitions of the breakpoint are encountered, an exception handler is only executed at the desired breakpoint to minimize overhead. A control portion of the processor selectively receives a breakpoint instruction and stores the breakpoint instruction in the instruction register.

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