Merge pull request #77 from mrexodia/regress_x86_ss_default

added regression test for useless SS segment override (#9)

suite/regress/x86_ss_default.py

+#!/usr/bin/python
+
+# Tests if the SS segment override prefix is not explicitly produced when unnecessary
+
+# Github issue: #9
+# Author: Duncan (mrexodia)
+
+from keystone import *
+
+import regress
+
+class TestX86(regress.RegressTest):
+    def runTest(self):
+        # Initialize Keystone engine
+        ks = Ks(KS_ARCH_X86, KS_MODE_32)
+        # Assemble to get back insn encoding & statement count
+        encoding1, _ = ks.asm(b"MOV EAX,DWORD PTR SS:[ESP+8]")
+        encoding2, _ = ks.asm(b"MOV EAX,DWORD PTR SS:[EBP+8]")
+        # Assert the result
+        self.assertEqual(encoding1, [ 0x8B, 0x44, 0x24, 0x08 ])
+        self.assertEqual(encoding2, [ 0x8B, 0x45, 0x08 ])
+
+if __name__ == '__main__':
+    regress.main()