PROCESSOR SYSTEM WITH CACHE-BASED SOFTWARE BREAKPOINT

摘要

PROBLEM TO BE SOLVED: To provide a method for executing a software breakpoint in a processor system having at least one processor connected with a main memory. SOLUTION: Each processor 102 in a shared memory system 100 has an instruction cache 110 associated with the processor 102, a breakpoint code is inserted at a particular location in the instruction cache 110 of at least given one of the plurality of processors 102 and a control indicator associated with the particular location is set to a state which allows the breakpoint code to be returned to the given processor 102 from the instruction cache in response to a fetch request to a corresponding address. The breakpoint code is returned to the given processor 102 from the instruction cache 110 in response to the fetch request. COPYRIGHT: (C)2004,JPO