2010 Volume 27 Issue 4 Pages 4_24-4_42
This paper presents an open source simulator corresponding multiprocessors for embedded systems. The purpose of the simulator is to effectively develop a real-time OS and application for multiprocessors. To realize the multiprocessor simulation environment, an ISS (Instruction Set Simulators) for a single processor is extended with few modifications and cooperate with other ISSes. There are four newly-developed mechanisms between ISSes as follows: (1) a shared memory mechanism, (2) an exclusion control mechanism, (3) an interrupt mechanism, and (4) a synchronism mechanism. Moreover, the method of reducing simulation time to use the idle time of the real-time OS is proposed. It is possible to adapt this environment to other kinds of ISSes.
