Instruction set simulator(SystemC) for MIPS architecture

Does anybod开发者_StackOverflow中文版y know if there is a open source MIPS instruction set simulator (in C++ or SystemC preferably)?

I googled dozens of links and there is just no open ISS of MIPS cpu. Then only ones I know for now is

• Plasma CPU, which implements only a limited number of mips instructions, thus some application code can not be simulated by it.

• Gem5, which I was not able to use to boot a linux image(though followed every instruction on its web)

So, do you have some experience about this?

Have you looked at QEMU? I use it in my ELLCC project to do both Linux user mode and bare system mode emulation for the Mips.

(1) GXemul
(2) OVPsim from OVPworld. It is free for research purpose.