在哪里为MARS放置.txt文件

I am using the MARS program to write some MIPS assembly code and the program I am writing needs to take in an input file and then iterate through it to change some numbers. I have all of the body of the code written but I am not sure how to actual take in a file. I have the following code that reads in the input and stores the address:I am using the MARS program to write some MIPS