diff --git a/tests/regress/mips_single_step_sp.py b/tests/regress/mips_single_step_sp.py
index bacdeb1f..b3c78400 100755
--- a/tests/regress/mips_single_step_sp.py
+++ b/tests/regress/mips_single_step_sp.py
@@ -3,6 +3,8 @@
 from unicorn import *
 from unicorn.mips_const import *
 
+import regress
+
 def code_hook(uc, addr, size, user_data):
     print 'code hook: pc=%08x sp=%08x' % (addr, uc.reg_read(UC_MIPS_REG_SP))
 
@@ -36,6 +38,14 @@ def run(step=False):
     print 'sp =', hex(uc.reg_read(UC_MIPS_REG_SP))
     print 'at =', hex(uc.reg_read(UC_MIPS_REG_AT))
     print
+    return uc.reg_read(UC_MIPS_REG_SP)
 
-run(step=False)
-run(step=True)
+
+class MipsSingleStep(regress.RegressTest):
+    def test(self):
+        sp1 = run(step=False)
+        sp2 = run(step=True)
+        self.assertEqual(sp1, sp2)
+
+if __name__ == '__main__':
+    regress.main()
diff --git a/tests/regress/mips_syscall_pc.py b/tests/regress/mips_syscall_pc.py
index 3533f3ea..995b154f 100755
--- a/tests/regress/mips_syscall_pc.py
+++ b/tests/regress/mips_syscall_pc.py
@@ -3,16 +3,25 @@
 from unicorn import *
 from unicorn.mips_const import *
 
+import regress
+
 def intr_hook(uc, intno, data):
     print 'interrupt=%d, v0=%d, pc=0x%08x' % (intno, uc.reg_read(UC_MIPS_REG_V0), uc.reg_read(UC_MIPS_REG_PC))
 
-addr = 0x40000
-code = '0c000000'.decode('hex') # syscall
+class MipsSyscall(regress.RegressTest):
+    def test(self):
+        addr = 0x40000
+        code = '0c000000'.decode('hex') # syscall
 
-uc = Uc(UC_ARCH_MIPS, UC_MODE_MIPS32 + UC_MODE_LITTLE_ENDIAN)
-uc.mem_map(addr, 0x1000)
-uc.mem_write(addr, code)
-uc.reg_write(UC_MIPS_REG_V0, 100)
-uc.hook_add(UC_HOOK_INTR, intr_hook)
+        uc = Uc(UC_ARCH_MIPS, UC_MODE_MIPS32 + UC_MODE_LITTLE_ENDIAN)
+        uc.mem_map(addr, 0x1000)
+        uc.mem_write(addr, code)
+        uc.reg_write(UC_MIPS_REG_V0, 100)
+        uc.hook_add(UC_HOOK_INTR, intr_hook)
 
-uc.emu_start(addr, addr+len(code))
+        uc.emu_start(addr, addr+len(code))
+        self.assertEqual(0x40004, uc.reg_read(UC_MIPS_REG_PC))
+
+
+if __name__ == '__main__':
+    regress.main()