addu $t3, $zero, $zero
addiu $t4, $zero, 1
addiu $t1, $zero, 100
loop1: addiu $t2, $zero, 100
loop2: addiu $t2, $t2, -1
addiu $t3, $t3, 1
bnez $t2, loop2
addiu $t1, $t1, -1
bne $t1, $t4, loop1