Question

I need help with this MIPS program.

Write a program that makes an array of integers called array in the .data section. It should print the number of zeroes in that array. You should also have a variable called array_size in the .data section which is set to the number of elements in your array. Let's say you name your program count_zeroes.s. To submit your program, you must upload it to hills and run the following command (assuming you are in the same directory as your program):

Answer 1

data:

add $t0,$s0,zero #initialize $t0=$s0,$s0 is array

sll $t1,$s1,2 #t1 contains 4*n each integer takes 4 bytes

add $t1,$t1,$s0 #$t1 contains $s0+4n getting last element to stop the loop

add $t2,$zero,$zero #number of zeros initialized to zero

Start: #start of loop

lw $t3,0($t0) #read a word from array

bne $t3,$zero,NotZero #skip increment if value not zero go to NonZero label

addi $t2,$t2,1

NotZero: addi $t0,$t0,4 #$t0 has next element address

bne $t0,$t1,start #checking last element address and if not equal branch to start label

End: <exit>