dariiik / simulating-pipelined-execution

CSE261 Project 1: MIPS Simulator

More details are in handout

Instructions

There are three functions you need to implement, located in the following two files: parse.py, run.py

1. parse.py

Implement the following parsing functions.

def parse_instr(buffer, index)
def parse_data(buffer, index)

The parse_instr() function is called for every instruction in the input file, and converts them into the instruction type. The instruction type is defined in util.py

The parse_data() function is called for every data field in the input file, and you need to fill the data into the simulated memory. Use the mem_read and mem_write as mentioned in the Hints section below.

There is a helper function you can use to convert binary strings to int variables:

def fromBinary(bits)

2. run.py

Implement the following function:

def process_instruction()

The process_instruction() function is used by the cycle() instruction to execute the instruction at the current PC. Your internal register/memory state should be changed according to the instruction that is pointed to by the current PC.

Hints

• Always use the mem_read(), mem_write() functions when trying to read or write from the simulated memory. This includes your implementation of the load/store functions, but also when you are loading data region to the simulated memory.
• You may generate input files of very simple instructions to check the functionality of your simulator. For example, add $1, $1, 5. Then you can check if the R1 of your simulator has been incremented by 5, etc..

Reference Simulators

You can use the reference simulaters to generate answers for the testcases you make. The simulators are in ./reference_simulaters folder. You should use the one compatible with your system.

$./reference_simulaters/reference_simulater_win.exe -d -p [PATH_TO_YOUR_TESTCASE] > [PATH_TO_OUTPUT]