1.2

1/homework/exp1/exp1_2.asm

@@ -0,0 +1,26 @@
+.data
+.text
+li $v0, 5 # read in i
+syscall
+move $s1, $v0 # use s1 to store i
+
+li $v0, 5 # read in j
+syscall
+move $s2, $v0 # use s2 to store j
+
+sub $s1, $zero, $s1 # i = -i
+
+bgez $s2, no_neg_j # if >= 0, then no neg
+sub $s2, $zero, $s2 # j = -j
+
+no_neg_j: move $s0, $zero # use s0 as temp, temp = 0
+count_up_j: bge $s0, $s2, done_count_up # if temp >= j, stop iteration
+addi $s1, $s1, 1 # i = i + 1
+addi $s0, $s0, 1 # ++temp
+j count_up_j
+
+done_count_up: move $a0, $s1
+li $v0 1
+syscall
+
+move $v0, $s1 # set return value