VxSim Prototyping and Simulation Tool

Part of Wind River¦s WindPower* tool suite, VxSim* is a comprehensive prototyping and simulation tool for VxWorks* applications. It is intended to assist developers of high-performance embedded systems using custom hardware. VxSim provides full VxWorks simulation on a UNIX workstation. It enables application development to begin before hardware becomes available, and allows a large portion of software testing to occur early in the development cycle v prior to integration testing.
Development organizations that stand to benefit most from VxSim include those waiting for target hardware, those with limited hardware budgets, and those creating application modules that do not require direct hardware access.
VxSim accurately reproduces many of the sophisticated features of VxWorks, including the DOS file system, full UNIX-style networking (TCP/IP, rlogin, etc.) and support for up to 16 targets sharing a common backplane v plus simulation of the VxWorks Backplane Driver for inter-processor communication.
The VxWorks scheduler is fully implemented in the simulator, maintaining true multitasking activity with respect to priorities and preemption. The simulation environment preserves the VxWorks shell, which serves as the primary window into a VxSim environment.
The GNU Toolset that comes with VxSim contains GCC version currently shipping for SPARC, full source code, complete GNU documentation, and the current release of the VxGDB debugger. Because VxSim runs entirely in a UNIX process, this debugger is the native version of GDB. It presents the user with a system-level view of the application. For developing on HP 9000/700 series workstations with HP-UX 9.0.x, VxSim uses the HP ANSI C compiler and HP source debugger (XDB).