Question

Given the code for Question 3.

.begin

while: load b

compare a

jumpeq done

out b

decrement a

jump while

done: halt

a: .data 0

b: .data 10

.end

What line of code would you change to have it work as intended?

Select one:

jump while

while: load b

done: halt

jumpeq done

a: .data 0

decrement a

compare a

out b

b: .data 10

Answer 1

I would change the line ' decrement a ' to 'decrement b' to make the code work. Decrementing a from zero would give a negative number. Also that would not have any effect in the loop conditions. whereas decrementing b will make the loop run till b=0.