1. Show that the if-else structure can be simulated using Bare Bones. That is, write a program sequence in Bare Bones that simulates the action of the statement:

if X not 0:

S1

else:

S2

where S1 and S2 represent arbitrary statement sequences. Hint: use the invert operation.

2. Describe the function computed by the following Bare Bones program assuming the functions input is represented by X and its output by Z

clear Z

while X not 0:

incr Z

incr Z

decr X