Revamp Python regression tests suite (#2022)

* Fix Python regression test suite (partial)

* Fix Python regression test suite

* Add a test for mapping at high addresses

* Add ctl tests

tests/regress/arm_fp_vfp_disabled.py

@@ -1,44 +1,41 @@
 #!/usr/bin/python
-# coding=utf8
 
 # Added by Peter Mackay, relating to issue 571
 # "ARM NEON/VFP support seems to exist but is disabled by default"
 # https://github.com/unicorn-engine/unicorn/issues/571
 
+import regress
+
 from unicorn import *
 from unicorn.arm_const import *
 
-import regress
+
+CODE = (
+    b'\x11\xEE\x50\x1F'     #  MRC p15, #0, r1, c1, c0, #2
+    b'\x41\xF4\x70\x01'     #  ORR r1, r1, #(0xf << 20)
+    b'\x01\xEE\x50\x1F'     #  MCR p15, #0, r1, c1, c0, #2
+    b'\x4F\xF0\x00\x01'     #  MOV r1, #0
+    b'\x07\xEE\x95\x1F'     #  MCR p15, #0, r1, c7, c5, #4
+    b'\x4F\xF0\x80\x40'     #  MOV r0,#0x40000000
+    b'\xE8\xEE\x10\x0A'     #  FMXR FPEXC, r0
+    b'\x2d\xed\x02\x8b'     #  vpush {d8}
+)
+
+BASE = 0x1000
 
 class FpVfpDisabled(regress.RegressTest):
 
     def runTest(self):
-        # MRC p15, #0, r1, c1, c0, #2
-        # ORR r1, r1, #(0xf << 20)
-        # MCR p15, #0, r1, c1, c0, #2
-        # MOV r1, #0
-        # MCR p15, #0, r1, c7, c5, #4
-        # MOV r0,#0x40000000
-        # FMXR FPEXC, r0
-        code = '11EE501F'
-        code += '41F47001'
-        code += '01EE501F'
-        code += '4FF00001'
-        code += '07EE951F'
-        code += '4FF08040'
-        code += 'E8EE100A'
-        # vpush {d8}
-        code += '2ded028b'
-        
-        address = 0x1000
         mem_size = 0x1000
-        code_bytes = code.decode('hex')
-        
+
         uc = Uc(UC_ARCH_ARM, UC_MODE_THUMB)
-        uc.mem_map(address, mem_size)
-        uc.mem_write(address, code_bytes)
-        uc.reg_write(UC_ARM_REG_SP, address + mem_size)
-        uc.emu_start(address + 1, address + len(code_bytes))
+
+        uc.mem_map(BASE, mem_size)
+        uc.mem_write(BASE, CODE)
+        uc.reg_write(UC_ARM_REG_SP, BASE + mem_size - 4)
+
+        uc.emu_start(BASE + 1, BASE + len(CODE))
+
 
 if __name__ == '__main__':
     regress.main()