Metrowerks Corporation

Applied Microsystems Corporation

Sidney Richards Maxwell, Iii

Stephen Caine O'Brien

Michael Louis Steinberger

A method and system for simulating the execution of a software program on a simulated hardware system. An instrumented software program is divided into program segments delineated by tags and is then analyzed for data describing the program segments. The data is tabulated and indexed in a function data table according to the program segments. Hardware parameters that at least define a portion of the simulated hardware system are tabulated in a hardware configuration file. The software program is executed on a host system, and when a tag is executed, data indexed in the function data table under the program segment corresponding to the executed tag and hardware parameters tabulated in the hardware configuration file are used to calculate an estimated execution time for the program segment corresponding to the executed tag. The estimated execution time for the program segment is added to a running total for the overall execution time of the software program. The system includes a memory for storing software parameters describing program segments of the software program, and for storing hardware parameters that at least partially define the simulated hardware system. The system further includes a processor for calculating an estimated execution time for the software program using the software and hardware parameters.

Method and system for simulating execution of a target program in a simulated target system

A software analysis system for capturing tags generated by tag statements in instrumented source code. The system includes a probe that monitors the address and data bus of the target system. When a tag statement is executed in the target system, a tag is written to a predetermined location in the address space of the target. The tag contains a tag value that is indicative of the location in the source code of the tag statement generating the tag. The source code instrumenter includes a language-dependent parser and a language-independent analyzer that records tagging data in a symbol database. The system performs a variety of analysis functions in essentially real time, including code coverage, function and task execution times, memory allocation, call pairs, and program tracing.

Method and apparatus for analyzing software in a language-independent manner

A software analysis system for capturing tags generated by tag statements in instrumented source code. The software analysis system includes a probe that monitors the address and data bus of the target system. When a tag statement is executed in the target system, a tag is written to a predetermined location in the address space of the target. The tag contains a tag value that is indicative of the location in the source code of the tag statement generating the tag. By monitoring the predetermined address, the probe is able to capture tags as they are written on the data bus of the target system. The source code instrumenter includes a language-dependent parser and a language-independent analyzer that records tagging data in a symbol database. The software analysis system may reference the tagging data in the symbol database while testing instrumented source code. The software analysis system performs a variety of analysis functions in essentially real time, including code coverage, function and task execution times, memory allocation, call pairs, and program tracing.

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Bothell, WA, United States of America

Sidney Richards Maxwell, Iii