Unsupported Instruction

[b-saideepak]

[x86] Error: Unsupported instruction (0f ae f0 0f...)

I was trying to execute a program in Multi2Sim-5.0. I am getting this error saying that an instruction is not supported. I guess the shown instruction is at machine-level, how do I know what that instruction is which is not supported?
Is there any way to add the implementation for this instruction?

Any comments are welcome.
Thanks in advance.