Index: test/functionalities/inferior-assert/TestInferiorAssert.py
===================================================================
--- test/functionalities/inferior-assert/TestInferiorAssert.py
+++ test/functionalities/inferior-assert/TestInferiorAssert.py
@@ -95,6 +95,15 @@
 
         return stop_reason
 
+    def check_register_read_working(self):
+        if self.getArchitecture() in ['x86_64', 'i386']:
+            self.expect("register read eax", substrs = ['eax = 0x'])
+        elif self.getArchitecture() in ['aarch64']:
+            self.expect("register read x0", substrs = ['x0 = 0x'])
+        else:
+            # TODO: Add check for other architectures
+            self.fail("Unsupported architecture for test case")
+
     def setUp(self):
         # Call super's setUp().
         TestBase.setUp(self)
@@ -150,8 +159,7 @@
         self.check_stop_reason()
 
         # lldb should be able to read from registers from the inferior after asserting.
-        self.expect("register read eax",
-            substrs = ['eax = 0x'])
+        self.check_register_read_working()
 
     def inferior_asserting_disassemble(self):
         """Test that lldb can disassemble frames after asserting."""
Index: test/functionalities/inferior-crashing/TestInferiorCrashing.py
===================================================================
--- test/functionalities/inferior-crashing/TestInferiorCrashing.py
+++ test/functionalities/inferior-crashing/TestInferiorCrashing.py
@@ -101,6 +101,15 @@
 
         return stop_reason
 
+    def check_register_read_working(self):
+        if self.getArchitecture() in ['x86_64', 'i386']:
+            self.expect("register read eax", substrs = ['eax = 0x'])
+        elif self.getArchitecture() in ['aarch64']:
+            self.expect("register read x0", substrs = ['x0 = 0x'])
+        else:
+            # TODO: Add check for other architectures
+            self.fail("Unsupported architecture for test case")
+
     def get_api_stop_reason(self):
         return lldb.eStopReasonException
 
@@ -155,8 +164,7 @@
         self.check_stop_reason()
 
         # lldb should be able to read from registers from the inferior after crashing.
-        self.expect("register read eax",
-            substrs = ['eax = 0x'])
+        self.check_register_read_working()
 
     def inferior_crashing_expr(self):
         """Test that the lldb expression interpreter can read symbols after crashing."""
@@ -195,8 +203,7 @@
             substrs = ['= 0x0'])
 
         # lldb should be able to read from registers from the inferior after crashing.
-        self.expect("register read eax",
-            substrs = ['eax = 0x'])
+        self.check_register_read_working()
 
         # And it should report the correct line number.
         self.expect("thread backtrace all",
Index: test/functionalities/inferior-crashing/recursive-inferior/TestRecursiveInferior.py
===================================================================
--- test/functionalities/inferior-crashing/recursive-inferior/TestRecursiveInferior.py
+++ test/functionalities/inferior-crashing/recursive-inferior/TestRecursiveInferior.py
@@ -102,6 +102,15 @@
 
         return stop_reason
 
+    def check_register_read_working(self):
+        if self.getArchitecture() in ['x86_64', 'i386']:
+            self.expect("register read eax", substrs = ['eax = 0x'])
+        elif self.getArchitecture() in ['aarch64']:
+            self.expect("register read x0", substrs = ['x0 = 0x'])
+        else:
+            # TODO: Add check for other architectures
+            self.fail("Unsupported architecture for test case")
+
     def setUp(self):
         # Call super's setUp().
         TestBase.setUp(self)
@@ -157,8 +166,7 @@
         self.check_stop_reason()
 
         # lldb should be able to read from registers from the inferior after crashing.
-        self.expect("register read eax",
-            substrs = ['eax = 0x'])
+        self.check_register_read_working()
 
     def recursive_inferior_crashing_expr(self):
         """Test that the lldb expression interpreter can read symbols after crashing."""
@@ -192,8 +200,7 @@
             substrs = ['(int) $0 ='])
 
         # lldb should be able to read from registers from the inferior after crashing.
-        self.expect("register read eax",
-            substrs = ['eax = 0x'])
+        self.check_register_read_working()
 
         # And it should report the correct line number.
         self.expect("thread backtrace all",