Write assembly code in the file below sum_squares.s, within the function sum_squares. You just need to follow my instructions in the comments.

.text .globl sum_squares .def sum_squares; .scl 2; .type 32; .endef

# This is the definition of the sum_squares function. # See the declaration in sum_squares.h # The function takes one parameter: # -- a 32-bit integer n in the %ecx register # It returns the sum of squares of the numbers from 1 to n. # The return value, being 32 bits, must be placed in the %eax registe sum_squares:

# In general, you can overwrite the 64-bit # registers %rax, %rcx, %rdx, %r8, %r9, %r10, %r11, # as well as their 32-bit halves, %eax, %ecx, # %edx, %r8d, %r9d, %r10d, %r11d as you like. These are # the "caller-saved" registers.

# NOTE: In this assignment, you only need to use 32-bit # registers for the computation (i.e. %eax, %ecx, %edx, etc.) pushq %rbp # LEAVE THIS ALONE movq %rsp, %rbp # LEAVE THIS ALONE

/* FILL THIS IN */ # sum = 0, since sum is to be returned, # use %eax to hold sum.

/* FILL THIS IN */ # i = 1

/* THIS IS THE TOP OF THE LOOP, NEED A LABEL */

/* FILL THIS IN */ # compare i to n /* FILL THIS IN */ # if i is greater than n, jump out of loop

/* FILL THIS IN */ # copy i into another register /* FILL THIS IN */ # multiply that register by i to get i*i /* FILL THIS IN */ # add that register to sum /* FILL THIS IN */ # i++ /* FILL THIS IN */ # jump to top of loop

/* THIS IS OUTSIDE THE LOOP, NEED A LABEL */

# the return value, sum, is already in %eax

popq %rbp # LEAVE THIS ALONE retq # LEAVE THIS ALONE