diff --git a/packages/fcl-passrc/src/pasresolveeval.pas b/packages/fcl-passrc/src/pasresolveeval.pas
index 8c8f0ee356..37eb5fc3bf 100644
--- a/packages/fcl-passrc/src/pasresolveeval.pas
+++ b/packages/fcl-passrc/src/pasresolveeval.pas
@@ -3890,6 +3890,8 @@ end;
 
 function TResExprEvaluator.ExprStringToOrd(Value: TResEvalValue;
   PosEl: TPasElement): longword;
+const
+  Invalid = $12345678; // bigger than $ffff and smaller than $8000000
 var
   {$ifdef FPC_HAS_CPSTRING}
   S: RawByteString;
@@ -3901,11 +3903,29 @@ begin
     begin
     // ord(ansichar)
     S:=TResEvalString(Value).S;
-    if length(S)<>1 then
-      RaiseMsg(20170522221143,nXExpectedButYFound,sXExpectedButYFound,
-        ['char','string'],PosEl)
+    if length(S)=1 then
+      Result:=ord(S[1])
+    else if (length(S)=0) or (length(S)>4) then
+      begin
+      if PosEl<>nil then
+        RaiseMsg(20170522221143,nXExpectedButYFound,sXExpectedButYFound,
+          ['char','string'],PosEl)
+      else
+        exit(Invalid);
+      end
     else
-      Result:=ord(S[1]);
+      begin
+      U:=GetUnicodeStr(S,nil);
+      if length(U)<>1 then
+        begin
+        if PosEl<>nil then
+          RaiseMsg(20190124180407,nXExpectedButYFound,sXExpectedButYFound,
+            ['char','string'],PosEl)
+        else
+          exit(Invalid);
+        end;
+      Result:=ord(U[1]);
+      end;
     end
   else
   {$endif}
@@ -3914,8 +3934,13 @@ begin
     // ord(widechar)
     U:=TResEvalUTF16(Value).S;
     if length(U)<>1 then
-      RaiseMsg(20170522221358,nXExpectedButYFound,sXExpectedButYFound,
-        ['char','string'],PosEl)
+      begin
+      if PosEl<>nil then
+        RaiseMsg(20170522221358,nXExpectedButYFound,sXExpectedButYFound,
+          ['char','string'],PosEl)
+      else
+        exit(Invalid);
+      end
     else
       Result:=ord(U[1]);
     end
@@ -4555,35 +4580,35 @@ end;
 
 function TResExprEvaluator.OrdValue(Value: TResEvalValue; ErrorEl: TPasElement
   ): TResEvalValue;
+var
+  v: longword;
 begin
+  Result:=nil;
+  v:=0;
   case Value.Kind of
     revkBool:
       if TResEvalBool(Value).B then
-        Result:=TResEvalInt.CreateValue(1)
+        v:=1
       else
-        Result:=TResEvalInt.CreateValue(0);
+        v:=0;
     revkInt,revkUInt:
-      Result:=Value;
+      exit(Value);
     {$ifdef FPC_HAS_CPSTRING}
     revkString:
-      if length(TResEvalString(Value).S)<>1 then
-        RaiseRangeCheck(20170624160128,ErrorEl)
-      else
-        Result:=TResEvalInt.CreateValue(ord(TResEvalString(Value).S[1]));
+      v:=ExprStringToOrd(Value,ErrorEl);
     {$endif}
     revkUnicodeString:
-      if length(TResEvalUTF16(Value).S)<>1 then
-        RaiseRangeCheck(20170624160129,ErrorEl)
-      else
-        Result:=TResEvalInt.CreateValue(ord(TResEvalUTF16(Value).S[1]));
+      v:=ExprStringToOrd(Value,ErrorEl);
     revkEnum:
-      Result:=TResEvalInt.CreateValue(TResEvalEnum(Value).Index);
+      v:=TResEvalEnum(Value).Index;
   else
     {$IFDEF VerbosePasResEval}
     writeln('TResExprEvaluator.OrdValue ',Value.AsDebugString);
     {$ENDIF}
     RaiseNotYetImplemented(20170624155932,ErrorEl);
   end;
+  if v>$ffff then exit;
+  Result:=TResEvalInt.CreateValue(v);
 end;
 
 procedure TResExprEvaluator.PredValue(Value: TResEvalValue; ErrorEl: TPasElement
diff --git a/packages/pastojs/tests/tcmodules.pas b/packages/pastojs/tests/tcmodules.pas
index dc789736d6..75ec681cfb 100644
--- a/packages/pastojs/tests/tcmodules.pas
+++ b/packages/pastojs/tests/tcmodules.pas
@@ -393,6 +393,7 @@ type
     Procedure TestCaseOfNoElse_UseSwitch;
     Procedure TestCaseOfRange;
     Procedure TestCaseOfString;
+    Procedure TestCaseOfChar;
     Procedure TestCaseOfExternalClassConst;
     Procedure TestDebugger;
 
@@ -6797,6 +6798,7 @@ begin
   'begin',
   '  for c:=''a'' to ''c'' do ;',
   '  for c:=c downto ''a'' do ;',
+  '  for c:=''Б'' to ''Я'' do ;',
   '']);
   ConvertProgram;
   CheckSource('TestForCharDo',
@@ -6805,6 +6807,7 @@ begin
     LinesToStr([ // this.$main
     'for (var $l1 = 97; $l1 <= 99; $l1++) $mod.c = String.fromCharCode($l1);',
     'for (var $l2 = $mod.c.charCodeAt(); $l2 >= 97; $l2--) $mod.c = String.fromCharCode($l2);',
+    'for (var $l3 = 1041; $l3 <= 1071; $l3++) $mod.c = String.fromCharCode($l3);',
     '']));
 end;
 
@@ -7564,6 +7567,7 @@ begin
   '  case s of',
   '  ''foo'': s:=h;',
   '  ''a''..''z'': h:=s;',
+  '  ''Б''..''Я'': ;',
   '  end;',
   '']);
   ConvertProgram;
@@ -7576,7 +7580,34 @@ begin
     'var $tmp1 = $mod.s;',
     'if ($tmp1 === "foo") {',
     '  $mod.s = $mod.h}',
-    ' else if (($tmp1.length === 1) && ($tmp1 >= "a") && ($tmp1 <= "z")) $mod.h = $mod.s;',
+    ' else if (($tmp1.length === 1) && ($tmp1 >= "a") && ($tmp1 <= "z")) {',
+    '  $mod.h = $mod.s}',
+    ' else if (($tmp1.length === 1) && ($tmp1 >= "Б") && ($tmp1 <= "Я")) ;',
+    '']));
+end;
+
+procedure TTestModule.TestCaseOfChar;
+begin
+  StartProgram(false);
+  Add([
+  'var s,h: char;',
+  'begin',
+  '  case s of',
+  '  ''a''..''z'': h:=s;',
+  '  ''Б''..''Я'': ;',
+  '  end;',
+  '']);
+  ConvertProgram;
+  CheckSource('TestCaseOfString',
+    LinesToStr([ // statements
+    'this.s = "";',
+    'this.h = "";',
+    '']),
+    LinesToStr([ // $mod.$main
+    'var $tmp1 = $mod.s;',
+    'if (($tmp1 >= "a") && ($tmp1 <= "z")) {',
+    '  $mod.h = $mod.s}',
+    ' else if (($tmp1 >= "Б") && ($tmp1 <= "Я")) ;',
     '']));
 end;