diff --git a/lab3/activity2.asm b/lab3/activity2.asm
new file mode 100644
index 0000000..b2bddb2
--- /dev/null
+++ b/lab3/activity2.asm
@@ -0,0 +1,3 @@
+mov.w   #0xF0F0, R7     ; R7 = 1111000011110000b = 0xF0F0, Z = 0, N = 0, C = 0
+add.w   #0xF000, R7     ; R7 = 1110000011110000b = 0xE0E0, Z = 0, N = 1, C = 1
+sub.w   #0xE0F0, R7     ; R7 = 0,                          Z = 1, N = 0, C = 0
\ No newline at end of file