Pip does not have a remainder operation as in Python. One way to simulate y = y % x with positive x and y is while y >= 0: y = y - x y = y + x After the loop, y < 0 for the first time. After the last line it is back to the proper range for the remainder: 0 <= y < x. Play computer to see that this works! Convert that code to Pip assembler file pipb.asm and test as in part A. The while loop condition translation is trickier here than in the earliest while translation example.