• Read pp. 214-228
• Turn in a final project draft proposal. (see handout on final projects)

Due Date: Tues, March 24

Assignment Description

1. Test whether two numbers are equal. You can assume that the two numbers to test are stored in cells 14 and 15. After your program has finished running, cell 16 should contain 1 if the value stored in cell 14 equals the value stored in cell 15, and 0 otherwise.

2. Find the maximum of two integers. As above, assume that the two integers are stored in cells 14 and 15. After your program has finished running, cell 16 should contain the larger of the two integers.

3. Divide a number in half. Choose a cell which will store the number to be divided, and another cell which will store the answer. Suppose, for example, that cell 15 will contain the number to be divided, and cell 16 will contain the answer. Then after your program has finished running, cell 16 should contain half of the original value of cell 15. To make the problem a bit easier, you can assume that the the input will always be a positive even number.

   Hint: Suppose that the number to be divided is stored in cell 15. First initialize cell 16 to 0. Then repeatedly subtract 1 from the contents of cell 15 and add 1 to the contents of cell 16. Keep doing this until the contents of cell 15 equals the contents of cell 16. At this point, cell 16 will contain exactly half of the original value in cell 15.

When you've finished each problem, save the solution using "Save" from the "Pips" menu, and hand in a disk with the saved programs.