A simulator of Xilinx PicoBlaze soft-processor, runnable in browsers.
PDP-OmniSim simulating parallel and distributed processing systems
Application for simulation of microprogrammed processor DOP
Krypto-processor (KPU) on OpenRISC architecture
A simple MIPS processor for Chipmunk DigLog circuit simulator
A DLX/MIPS processor simulator
ParallelSim is a parallel processor simulator written in java.
DASiT (DLX-Altivec Simulator Tool)