--- /dev/null
+.include "macros.inc"
+
+start
+
+test_name NORI_1
+mvi r1, 0
+nori r3, r1, 0
+check_r3 0xffffffff
+
+test_name NORI_2
+mvi r1, 0
+nori r3, r1, 1
+check_r3 0xfffffffe
+
+test_name NORI_3
+mvi r1, 1
+nori r3, r1, 1
+check_r3 0xfffffffe
+
+test_name NORI_4
+mvi r1, 1
+nori r3, r1, 0
+check_r3 0xfffffffe
+
+test_name NORI_5
+load r1 0xaa55aa55
+nori r3, r1, 0x55aa
+check_r3 0x55aa0000
+
+test_name NORI_6
+load r3 0xaa55aa55
+nori r3, r3, 0x55aa
+check_r3 0x55aa0000
+
+end