diff --git a/uEmu.py b/uEmu.py
index 3afd922..7686430 100644
--- a/uEmu.py
+++ b/uEmu.py
@@ -144,28 +144,35 @@ def inf_is_be():
         else:
             return cvar.inf.mf
 
+    @staticmethod
+    def inf_is_64bit():
+        if IDA_SDK_VERSION >= 830:
+            return inf_is_64bit()
+        else:
+            return True if ph.flag & PR_USE64 else False
+
     @staticmethod
     def get_arch():
-        if ph.id == PLFM_386 and ph.flag & PR_USE64:
+        if ph.id == PLFM_386 and UEMU_HELPERS.inf_is_64bit():
             return "x64"
-        elif ph.id == PLFM_386 and ph.flag & PR_USE32:
+        elif ph.id == PLFM_386:
             return "x86"
-        elif ph.id == PLFM_ARM and ph.flag & PR_USE64:
+        elif ph.id == PLFM_ARM and UEMU_HELPERS.inf_is_64bit():
             if UEMU_HELPERS.inf_is_be():
                 return "arm64be"
             else:
                 return "arm64le"
-        elif ph.id == PLFM_ARM and ph.flag & PR_USE32:
+        elif ph.id == PLFM_ARM:
             if UEMU_HELPERS.inf_is_be():
                 return "armbe"
             else:
                 return "armle"
-        elif ph.id == PLFM_MIPS and ph.flag & PR_USE64:
+        elif ph.id == PLFM_MIPS and UEMU_HELPERS.inf_is_64bit():
             if UEMU_HELPERS.inf_is_be():
                 return "mips64be"
             else:
                 return "mips64le"
-        elif ph.id == PLFM_MIPS and ph.flag & PR_USE32:
+        elif ph.id == PLFM_MIPS:
             if UEMU_HELPERS.inf_is_be():
                 return "mipsbe"
             else:
@@ -488,7 +495,7 @@ def get_register_ext_format(arch):
     @staticmethod
     def is_thumb_ea(ea):
         def handler():
-            if ph.id == PLFM_ARM and not ph.flag & PR_USE64:
+            if ph.id == PLFM_ARM and not UEMU_HELPERS.inf_is_64bit():
                 if IDA_SDK_VERSION >= 700:
                     t = get_sreg(ea, "T")  # get T flag
                 else:
@@ -664,7 +671,7 @@ def SetContent(self, address, context):
                 if self.extended:
                     value_format = UEMU_HELPERS.get_register_ext_format(arch)
                 else:
-                    if ph.flag & PR_USE64:
+                    if UEMU_HELPERS.inf_is_64bit():
                         value_format = "0x%.16X"
                     else:
                         value_format = "0x%.8X"