Essentials Of Computer Organization And Architecture 4th Edition by Linda Null,Julia Lobur

Exercise 5

What are the potential problems (perhaps more than one) with the following assembly language code fragment (implementing a subroutine) written to run on MARIE The subroutine assumes the parameter to be passed is in the AC and should double this value. The Main part of the program includes a sample call to the subroutine. You can assume this fragment is part of a larger program.