Mips assembly practice exercise

I’m working on a mips exercise that involves a connect four game that has three players. So Far, I have the board to compile and accept user input. My issue I’m trying to resolve is to take the user input from each player and store their game piece on the board based off which column value they have selected. After that, I need to check if there’s a connect four sequence throughout the board. I’m trying to keep it really simple and would like detailed comments throughout the code.