diff --git a/cs672/lab2/lab2-13.s b/cs672/lab2/lab2-13.s
new file mode 100644
index 0000000..c5037a7
--- /dev/null
+++ b/cs672/lab2/lab2-13.s
@@ -0,0 +1,17 @@
+	add	r4, r0, r0	; clear R4 = 0
+	add	r5, r0, r0	; clear R5 = 0
+
+	addi	r1, r0, 5	; set R1 (loop counter) = 5
+
+LOOP:	subi	r1, r1, 1	; decrement R1
+	addi	r4, r4, 2	; R4 = R4 + 2
+	bnez	r1, LOOP	; if (r1 != 0), goto LOOP
+	addi	r5, r5, 10	; R5 = R5 + 10
+
+	add	r6, r4, r5	; R6 = R4 + R5
+	
+	nop
+	nop
+	nop
+	nop
+	trap	#0
diff --git a/cs672/lab2/lab2.odt b/cs672/lab2/lab2.odt
new file mode 100644
index 0000000..afffb22
Binary files /dev/null and b/cs672/lab2/lab2.odt differ