Debugger operable with only background monitor

Details Debugger operable with only background monitor Debugger operable with only background monitor

1994-04-28

1995-10-03

Canney, Vincent P.

395375, 395700, 39518314, 395500, G06F 1130

Patent

active

054559367

ABSTRACT:
A debugger for a microprocessor, includes an instruction substituting circuit for tracing a memory access performed by the microprocessor and for substituting a predetermined branch instruction for an instruction which is read out from a predetermined address by the microprocessor; A background monitor is configured to give the microprocessor a memory space which is separated from the user space and is unique to the debugger. After the predetermined branch instruction has been substituted and after a break acknowledge signal indicating that an execution of the predetermined branch instruction has been activated, the debugger executes a program stored in the background monitor, and supplies a cache clear signal to the cache clear terminal at the start and end of the program in the background monitor.

REFERENCES:
patent: 5236153 (1993-11-01), Intrater et al.
patent: 5329630 (1994-07-01), Baldwin

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