Abstract: 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 system. 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. By properly instrumenting the source code, the software analysis system is able to perform a variety of analysis functions in essentially real time, including code coverage, function and task execution times, memory allocation, call pairs, and program tracing.

Abstract: A system for testing and analyzing electronic systems, including a target processor and simulated target circuitry, and an associated target program to be executed on the target microprocessor. The system includes a processor emulator employing a hardware device for emulating the target microprocessor. The processor emulator has a memory for storing a plurality of computer instructions, including the target program and associated data. The processor emulator communicates with the memory to receive computer instructions from the memory and to access program specific data structures. The system further includes a hardware simulator adapted to simulate the target circuitry. A communications interface controls communication between the processor emulator and the hardware simulator. The processor emulator communicates with the hardware simulator using the communications interface when an event requires interaction of the target program with the target circuitry.

Abstract: 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 system. 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. By properly instrumenting the source code, the software analysis system is able to perform a variety of analysis functions in essentially real time, including code coverage, function and task execution times, memory allocation, call pairs, and program tracing.