SPIM
| Developer(s) | James Larus |
|---|---|
| Stable release |
9.1 / July 2011
|
| Operating system | GNU/Linux, Mac OS X, Unix and Windows |
| License | BSD license |
| Website | spimsimulator |
SPIM is a MIPS processor simulator, designed to run assembly language code for this architecture. The program simulates R2000 and R3000 processors, and was written by James R. Larus while a professor at the University of Wisconsin-Madison. The MIPS machine language is often taught in college-level assembly courses, especially those using the textbook Computer Organization and Design: The Hardware/Software Interface by David A. Patterson and John L. Hennessy ().
The name of the simulator is a reversal of the letters "MIPS".
SPIM simulators are available for Windows (PCSpim), Mac OS X and Unix/Linux-based (xspim) operating systems. As of release 8.0 in January 2010, the simulator is licensed under the standard BSD license.
In January, 2011, a major release version 9.0 features QtSpim that has a new user interface built on the cross-platform Qt UI framework and runs on Windows, GNU/Linux, and Mac OS X. From this version, the project has also been moved to SourceForge for better maintenance. Precompiled versions of QtSpim for Linux (32-bit), Windows, and Mac OS X, as well as PCSpim for Windows are provided.
The SPIM simulator comes with a rudimentary operating system, which allows the programmer usage of common used functions in a comfortable way. Such functions are invoked by the syscall-instruction. Then the OS acts depending on the values of specific registers.
The SPIM OS expects a label named main as a handover point from the OS-preamble.
MARS (MIPS Assembler and Runtime Simulator) is a Java-based IDE for the MIPS Assembly Programming Language and an alternative to SPIM. Its initial release was in 2005 and is under active development.
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