1 files changed, 25 insertions, 0 deletions
diff --git a/test/arch/x86/unit/mn_pextr.py b/test/arch/x86/unit/mn_pextr.py
new file mode 100644
index 00000000..eb724cf9
--- /dev/null
+++ b/test/arch/x86/unit/mn_pextr.py
@@ -0,0 +1,25 @@
+#! /usr/bin/env python
+from asm_test import Asm_Test
+import sys
+
+class Test_PEXTRB(Asm_Test):
+    TXT = '''
+    main:
+       CALL      next
+       .byte 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11
+       .byte 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01
+    next:
+       POP       EBP
+       MOV       EAX, 0xFFFFFFFF
+       MOVQ      MM0, QWORD PTR [EBP]
+       PEXTRW    EAX, MM0, 2
+       RET
+    '''
+
+    def check(self):
+        assert self.myjit.cpu.MM0 == 0x1122334455667788
+        assert self.myjit.cpu.EAX == 0x3344
+
+
+if __name__ == "__main__":
+    [test()() for test in [Test_PEXTRB]]