Code a sum function, Compile artifact1; Mutate/Change a line, Compile artifact2; and bindiff artifact1 artifact2
HLA is easier to follow than diffing to see what ASM gcc builds from C without flags to simplify the output bytecode. https://news.ycombinator.com/item?id=36454485
Learn X in Y minutes > MIPS Assembly: https://learnxinyminutes.com/docs/mips/