diff --git a/tests/test/cg/teontest1.pp b/tests/test/cg/teontest1.pp
new file mode 100644
index 0000000000..594170c6d5
--- /dev/null
+++ b/tests/test/cg/teontest1.pp
@@ -0,0 +1,29 @@
+{ %CPU=AARCH64 }
+{ %OPT--O2 }
+program teontest1;
+
+{ This test evaluates the AArch64 node parsing code that converts an
+  "xor not" operation into an EON instruction from Word-sized operands
+  into a LongWord result }
+
+const
+  InputsList: array[0..15] of Word     = ($0000, $0000, $0000, $0000, $FFFF, $FFFF, $FFFF, $FFFF, $5A5A, $5A5A, $5A5A, $5A5A, $A5A5, $A5A5, $A5A5, $A5A5);
+  InvertList: array[0..15] of Word     = ($0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5);
+  ExpectList: array[0..15] of LongWord = ($FFFF, $0000, $A5A5, $5A5A, $0000, $FFFF, $5A5A, $A5A5, $A5A5, $5A5A, $FFFF, $0000, $5A5A, $A5A5, $0000, $FFFF);
+  
+var
+  X: Integer; Output: LongWord;
+  
+begin
+  for X := Low(InputsList) to High(InputsList) do
+    begin
+      Output := InputsList[X] xor not InvertList[X];
+      if Output <> ExpectList[X] then
+        begin
+          WriteLn('FAIL: Test index ', X, ', EON($', hexstr(InputsList[X], 4), ', $', hexstr(InputsList[X], 4), ')  expected $', hexstr(ExpectList[X], 8), ' but got $', hexstr(Output, 8));
+          Halt(1);
+        end; 
+    end;
+    
+  WriteLn('ok');
+end.
diff --git a/tests/test/cg/teontest2.pp b/tests/test/cg/teontest2.pp
new file mode 100644
index 0000000000..3aa6c8288b
--- /dev/null
+++ b/tests/test/cg/teontest2.pp
@@ -0,0 +1,34 @@
+{ %CPU=AARCH64 }
+{ %OPT--O2 }
+program teontest2;
+
+{ This test evaluates the AArch64 node parsing code that converts an
+  "xor not" operation into an EON instruction from Word-sized operands
+  into a LongWord result }
+
+function TestEON(const Input, InvertedInput: Word): LongWord; noinline;
+begin
+  TestEON := Input xor not InvertedInput;
+end;
+
+const
+  InputsList: array[0..15] of Word     = ($0000, $0000, $0000, $0000, $FFFF, $FFFF, $FFFF, $FFFF, $5A5A, $5A5A, $5A5A, $5A5A, $A5A5, $A5A5, $A5A5, $A5A5);
+  InvertList: array[0..15] of Word     = ($0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5, $0000, $FFFF, $5A5A, $A5A5);
+  ExpectList: array[0..15] of LongWord = ($FFFF, $0000, $A5A5, $5A5A, $0000, $FFFF, $5A5A, $A5A5, $A5A5, $5A5A, $FFFF, $0000, $5A5A, $A5A5, $0000, $FFFF);
+  
+var
+  X: Integer; Output: LongWord;
+  
+begin
+  for X := Low(InputsList) to High(InputsList) do
+    begin
+      Output := TestEON(InputsList[X], InvertList[X]);
+      if Output <> ExpectList[X] then
+        begin
+          WriteLn('FAIL: Test index ', X, ', EON($', hexstr(InputsList[X], 4), ', $', hexstr(InputsList[X], 4), ')  expected $', hexstr(ExpectList[X], 8), ' but got $', hexstr(Output, 8));
+          Halt(1);
+        end; 
+    end;
+    
+  WriteLn('ok');
+end.
diff --git a/tests/test/cg/teontest3.pp b/tests/test/cg/teontest3.pp
new file mode 100644
index 0000000000..1d28b1efce
--- /dev/null
+++ b/tests/test/cg/teontest3.pp
@@ -0,0 +1,29 @@
+{ %CPU=AARCH64 }
+{ %OPT--O2 }
+program teontest3;
+
+{ This test evaluates the AArch64 node parsing code that converts an
+  "xor not" operation into an EON instruction from Word-sized operands
+  into a LongWord result }
+
+const
+  InputsList: array[0..15] of SmallInt = (            $0000,          $0000,             $0000,          $0000, SmallInt($FFFF),   SmallInt($FFFF), SmallInt($FFFF),   SmallInt($FFFF),             $5A5A,          $5A5A,             $5A5A,          $5A5A, SmallInt($A5A5),   SmallInt($A5A5), SmallInt($A5A5),   SmallInt($A5A5));
+  InvertList: array[0..15] of SmallInt = (            $0000, SmallInt($FFFF),            $5A5A, SmallInt($A5A5),         $0000,    SmallInt($FFFF),          $5A5A,    SmallInt($A5A5),             $0000, SmallInt($FFFF),            $5A5A, SmallInt($A5A5),         $0000,    SmallInt($FFFF),          $5A5A,    SmallInt($A5A5));
+  ExpectList: array[0..15] of LongInt  = (LongInt($FFFFFFFF),         $0000, LongInt($FFFFA5A5),         $5A5A,          $0000, LongInt($FFFFFFFF),          $5A5A, LongInt($FFFFA5A5), LongInt($FFFFA5A5),         $5A5A, LongInt($FFFFFFFF),         $0000,          $5A5A, LongInt($FFFFA5A5),          $0000, LongInt($FFFFFFFF));
+  
+var
+  X: Integer; Output: LongInt;
+  
+begin
+  for X := Low(InputsList) to High(InputsList) do
+    begin
+      Output := InputsList[X] xor not InvertList[X];
+      if Output <> ExpectList[X] then
+        begin
+          WriteLn('FAIL: Test index ', X, ', EON($', hexstr(InputsList[X], 4), ', $', hexstr(InputsList[X], 4), ')  expected $', hexstr(ExpectList[X], 8), ' but got $', hexstr(Output, 8));
+          Halt(1);
+        end; 
+    end;
+    
+  WriteLn('ok');
+end.
diff --git a/tests/test/cg/teontest4.pp b/tests/test/cg/teontest4.pp
new file mode 100644
index 0000000000..707af6ce8f
--- /dev/null
+++ b/tests/test/cg/teontest4.pp
@@ -0,0 +1,34 @@
+{ %CPU=AARCH64 }
+{ %OPT--O2 }
+program teontest4;
+
+{ This test evaluates the AArch64 node parsing code that converts an
+  "xor not" operation into an EON instruction from Word-sized operands
+  into a LongWord result }
+
+function TestEON(const Input, InvertedInput: SmallInt): LongInt; noinline;
+begin
+  TestEON := Input xor not InvertedInput;
+end;
+
+const
+  InputsList: array[0..15] of SmallInt = (            $0000,          $0000,             $0000,          $0000, SmallInt($FFFF),   SmallInt($FFFF), SmallInt($FFFF),   SmallInt($FFFF),             $5A5A,          $5A5A,             $5A5A,          $5A5A, SmallInt($A5A5),   SmallInt($A5A5), SmallInt($A5A5),   SmallInt($A5A5));
+  InvertList: array[0..15] of SmallInt = (            $0000, SmallInt($FFFF),            $5A5A, SmallInt($A5A5),         $0000,    SmallInt($FFFF),          $5A5A,    SmallInt($A5A5),             $0000, SmallInt($FFFF),            $5A5A, SmallInt($A5A5),         $0000,    SmallInt($FFFF),          $5A5A,    SmallInt($A5A5));
+  ExpectList: array[0..15] of LongInt  = (LongInt($FFFFFFFF),         $0000, LongInt($FFFFA5A5),         $5A5A,          $0000, LongInt($FFFFFFFF),          $5A5A, LongInt($FFFFA5A5), LongInt($FFFFA5A5),         $5A5A, LongInt($FFFFFFFF),         $0000,          $5A5A, LongInt($FFFFA5A5),          $0000, LongInt($FFFFFFFF));
+  
+var
+  X: Integer; Output: LongInt;
+  
+begin
+  for X := Low(InputsList) to High(InputsList) do
+    begin
+      Output := TestEON(InputsList[X], InvertList[X]);
+      if Output <> ExpectList[X] then
+        begin
+          WriteLn('FAIL: Test index ', X, ', EON($', hexstr(InputsList[X], 4), ', $', hexstr(InputsList[X], 4), ')  expected $', hexstr(ExpectList[X], 8), ' but got $', hexstr(Output, 8));
+          Halt(1);
+        end; 
+    end;
+    
+  WriteLn('ok');
+end.