comment the code a) Write a code that performs Z X Y. You need to call a subrout

Question

comment the code

a) Write a code that performs Z X Y. You need to call a subroutine called TIMES that computes Z Use registers to pass X and Y. Make sure that part a) works before you move to b) b) Add another subroutine called SQUARE that takes the value in A and square it, that is, it finds A A. SQUARE must use TIMES i. Test your program by computing the square of 12, for example. c) Now add another subroutine called FOUR that computes A*A*A A. This subroutine should call SQUARE twice. i. Test your program by computing 34. You should get the same result as 9 Note: do not use the multiplication instruction.

Explanation / Answer

TIMES:

=========

li $a0 a

li $a1 b

jal TIMES

add $t1 $0 $v0

syscall

SQUARE:

li $a3 a

add $a4 $0 $a3

jal TIMES

add $t2 $0 $v0

jr $ra

FOUR:

jal SQUARE

add $t3 $0 $v0

move $t3 $a5

jal SQUARE

add $t4 $0 $v1

move $t3 $a6

jal TIMES

add $t5 $0 $v0

syscall

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