This CPU Simulator was created from scratch for the coursework section of the second year module Computer Architecture, which is a part of Electronic and Information Engineering at Imperial College London. The original specification for the project can be found here.
This C++ program takes as input binaries compliant with the MIPS ISA and runs them as if they were running on a MIPS CPU. This program could potentially allow a developer without access to a MIPS CPU to test if their compiled code would run on one.
This program simulates the 5 Stage MIPS execution cycle. After using the fstream library to read the binary and store the instructions in virtualised instruction memory, instructions are fetched from this memory with via accessing STL Vector elements and decoded using shifts. The instruction is then executed by the program. Data memory is virtualised using an STL Vector, as are CPU Registers. This allows for memory access and register write back. The size and location of memory is defined by the memory map specified in original-spec.md.
A testbench written in Bash Script is also included with example binaries.
- Make
- GCC/G++
Clone the repository by either downloading the zip file using the Git GUI or using the command line:
git clone https://github.com/adidesh20/MIPS-CPU-Simulator.git
Then, from the top of the directory tree, run:
make simulator
Assuming the presence of MIPS Binary filename.bin, from the top of the directory tree run:
bin/mips_simulator filename.bin