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diff --git a/rtl/sinclairql/sysutils.pp b/rtl/sinclairql/sysutils.pp
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+{
+    This file is part of the Free Pascal run time library.
+    Copyright (c) 2021 by Free Pascal development team
+
+    Sysutils unit for Sinclair QL
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
+unit sysutils;
+
+interface
+
+{$MODE objfpc}
+{$MODESWITCH OUT}
+{ force ansistrings }
+{$H+}
+{$modeswitch typehelpers}
+{$modeswitch advancedrecords}
+
+{$DEFINE OS_FILESETDATEBYNAME}
+{$DEFINE HAS_SLEEP}
+{$DEFINE HAS_OSERROR}
+
+{OS has only 1 byte version for ExecuteProcess}
+{$define executeprocuni}
+
+{ used OS file system APIs use ansistring }
+{$define SYSUTILS_HAS_ANSISTR_FILEUTIL_IMPL}
+{ OS has an ansistring/single byte environment variable API }
+{$define SYSUTILS_HAS_ANSISTR_ENVVAR_IMPL}
+
+{ Include platform independent interface part }
+{$i sysutilh.inc}
+
+{ Platform dependent calls }
+
+
+implementation
+
+uses
+  sysconst;
+
+{$DEFINE FPC_FEXPAND_UNC} (* UNC paths are supported *)
+{$DEFINE FPC_FEXPAND_DRIVES} (* Full paths begin with drive specification *)
+
+{ Include platform independent implementation part }
+{$i sysutils.inc}
+
+{$i qdosfuncs.inc}
+{$i smsfuncs.inc}
+
+{****************************************************************************
+                              File Functions
+****************************************************************************}
+{$I-}{ Required for correct usage of these routines }
+
+
+(****** non portable routines ******)
+
+function FileOpen(const FileName: rawbytestring; Mode: Integer): THandle;
+begin
+  FileOpen:=-1;
+  if FileOpen < -1 then
+    FileOpen:=-1;
+end;
+
+
+function FileGetDate(Handle: THandle) : Int64;
+begin
+  result:=-1;
+end;
+
+
+function FileSetDate(Handle: THandle; Age: Int64) : LongInt;
+begin
+  result:=0;
+end;
+
+
+function FileSetDate(const FileName: RawByteString; Age: Int64) : LongInt;
+var
+  f: THandle;
+begin
+  result:=-1;
+  f:=FileOpen(FileName,fmOpenReadWrite);
+  if f < 0 then
+    exit;
+  result:=FileSetDate(f,Age);
+  FileClose(f);
+end;
+
+
+function FileCreate(const FileName: RawByteString) : THandle;
+begin
+  FileCreate:=-1;
+  if FileCreate < -1 then
+    FileCreate:=-1;
+end;
+
+function FileCreate(const FileName: RawByteString; Rights: integer): THandle;
+begin
+  { Rights don't exist on the QL, so we simply map this to FileCreate() }
+  FileCreate:=FileCreate(FileName);
+end;
+
+function FileCreate(const FileName: RawByteString; ShareMode: integer; Rights : integer): THandle;
+begin
+  { Rights and ShareMode don't exist on the QL so we simply map this to FileCreate() }
+  FileCreate:=FileCreate(FileName);
+end;
+
+
+function FileRead(Handle: THandle; out Buffer; Count: LongInt): LongInt;
+begin
+  FileRead:=-1;
+  if (Count<=0) then
+    exit;
+
+  FileRead:=-1;
+  if FileRead < -1 then
+    FileRead:=-1;
+end;
+
+
+function FileWrite(Handle: THandle; const Buffer; Count: LongInt): LongInt;
+begin
+  FileWrite:=-1;
+  if (Count<=0) then 
+    exit;
+
+  FileWrite:=-1;
+  if FileWrite < -1 then
+    FileWrite:=-1;
+end;
+
+
+function FileSeek(Handle: THandle; FOffset, Origin: LongInt) : LongInt;
+var
+  dosResult: longint;
+begin
+  FileSeek:=-1;
+
+  dosResult:=-1;
+  if dosResult < 0 then
+    exit;
+
+  FileSeek:=dosResult;
+end;
+
+function FileSeek(Handle: THandle; FOffset: Int64; Origin: Longint): Int64;
+begin
+  FileSeek:=FileSeek(Handle,LongInt(FOffset),Origin);
+end;
+
+
+procedure FileClose(Handle: THandle);
+begin
+end;
+
+
+function FileTruncate(Handle: THandle; Size: Int64): Boolean;
+begin
+  FileTruncate:=False;
+end;
+
+
+function DeleteFile(const FileName: RawByteString) : Boolean;
+begin
+  DeleteFile:=false;
+end;
+
+
+function RenameFile(const OldName, NewName: RawByteString): Boolean;
+begin
+  RenameFile:=false;
+end;
+
+
+
+(****** end of non portable routines ******)
+
+
+function FileAge (const FileName : RawByteString): Int64;
+var
+  f: THandle;
+begin
+  FileAge:=-1;
+  f:=FileOpen(FileName,fmOpenRead);
+  if f < 0 then
+    exit;
+  FileAge:=FileGetDate(f);
+  FileClose(f);
+end;
+
+
+function FileGetSymLinkTarget(const FileName: RawByteString; out SymLinkRec: TRawbyteSymLinkRec): Boolean;
+begin
+  Result := False;
+end;
+
+
+function FileExists (const FileName : RawByteString; FollowLink : Boolean) : Boolean;
+var
+  Attr: longint;
+begin
+  FileExists:=false;
+  Attr:=FileGetAttr(FileName);
+  if Attr < 0 then
+    exit;
+
+  result:=(Attr and (faVolumeID or faDirectory)) = 0;
+end;
+
+
+type
+  PInternalFindData = ^TInternalFindData;
+  TInternalFindData = record
+    dummy: pointer;
+  end;
+
+
+Function InternalFindFirst (Const Path : RawByteString; Attr : Longint; out Rslt : TAbstractSearchRec; var Name: RawByteString) : Longint;
+var
+  dosResult: longint;
+  IFD: PInternalFindData;
+begin
+  result:=-1; { We emulate Linux/Unix behaviour, and return -1 on errors. }
+
+  new(IFD);
+  IFD^.dummy:=nil;
+
+  Rslt.FindHandle:=nil;
+  dosResult:=-1; { add findfirst here }
+  if dosResult < 0 then
+    begin
+      InternalFindClose(IFD);
+      exit;
+    end;
+
+  Rslt.FindHandle:=IFD;
+
+  Name:='';
+  SetCodePage(Name,DefaultFileSystemCodePage,false);
+
+  Rslt.Time:=0;
+  Rslt.Size:=0;
+
+  { "128" is Windows "NORMALFILE" attribute. Some buggy code depend on this... :( (KB) }
+  Rslt.Attr := 128 or 0;
+
+  result:=0;
+end;
+
+
+Function InternalFindNext (var Rslt : TAbstractSearchRec; var Name : RawByteString) : Longint;
+var
+  dosResult: longint;
+  IFD: PInternalFindData;
+begin
+  result:=-1;
+  IFD:=PInternalFindData(Rslt.FindHandle);
+  if not assigned(IFD) then
+    exit;
+
+  dosResult:=-1;
+  if dosResult < 0 then
+    exit;
+
+  Name:='';
+  SetCodePage(Name,DefaultFileSystemCodePage,false);
+
+  Rslt.Time:=0;
+  Rslt.Size:=0;
+
+  { "128" is Windows "NORMALFILE" attribute. Some buggy code depend on this... :( (KB) }
+  Rslt.Attr := 128 or 0;
+
+  result:=0;
+end;
+
+
+Procedure InternalFindClose(var Handle: Pointer);
+var
+  IFD: PInternalFindData;
+begin
+  IFD:=PInternalFindData(Handle);
+  if not assigned(IFD) then
+    exit;
+
+  dispose(IFD);
+end;
+
+
+(****** end of non portable routines ******)
+
+Function FileGetAttr (Const FileName : RawByteString) : Longint;
+begin
+  FileGetAttr:=0;
+end;
+
+
+Function FileSetAttr (Const Filename : RawByteString; Attr: longint) : Longint;
+begin
+  FileSetAttr:=-1;
+
+  if FileSetAttr < -1 then
+    FileSetAttr:=-1
+  else
+    FileSetAttr:=0;
+end;
+
+
+
+{****************************************************************************
+                              Disk Functions
+****************************************************************************}
+
+function DiskSize(Drive: Byte): Int64;
+var
+  dosResult: longint;
+begin
+  DiskSize := -1;
+
+  dosResult:=-1;
+  if dosResult < 0 then
+    exit;
+
+  DiskSize:=0;
+end;
+
+function DiskFree(Drive: Byte): Int64;
+var
+  dosResult: longint;
+begin
+  DiskFree := -1;
+
+  dosResult:=-1;
+  if dosResult < 0 then
+    exit;
+
+  DiskFree:=0;
+end;
+
+function DirectoryExists(const Directory: RawByteString; FollowLink : Boolean): Boolean;
+var
+  Attr: longint;
+begin
+  DirectoryExists:=false;
+  Attr:=FileGetAttr(Directory);
+  if Attr < 0 then
+    exit;
+
+  result:=(Attr and faDirectory) <> 0;
+end;
+
+
+
+{****************************************************************************
+                              Locale Functions
+****************************************************************************}
+
+Procedure GetLocalTime(var SystemTime: TSystemTime);
+begin
+   DateTimeToSystemTime(FileDateToDateTime(0),SystemTime);
+end;
+
+
+Procedure InitAnsi;
+Var
+  i : longint;
+begin
+  {  Fill table entries 0 to 127  }
+  for i := 0 to 96 do
+    UpperCaseTable[i] := chr(i);
+  for i := 97 to 122 do
+    UpperCaseTable[i] := chr(i - 32);
+  for i := 123 to 191 do
+    UpperCaseTable[i] := chr(i);
+  Move (CPISO88591UCT,UpperCaseTable[192],SizeOf(CPISO88591UCT));
+
+  for i := 0 to 64 do
+    LowerCaseTable[i] := chr(i);
+  for i := 65 to 90 do
+    LowerCaseTable[i] := chr(i + 32);
+  for i := 91 to 191 do
+    LowerCaseTable[i] := chr(i);
+  Move (CPISO88591LCT,UpperCaseTable[192],SizeOf(CPISO88591UCT));
+end;
+
+
+Procedure InitInternational;
+begin
+  InitInternationalGeneric;
+  InitAnsi;
+end;
+
+function SysErrorMessage(ErrorCode: Integer): String;
+begin
+  Result:=Format(SUnknownErrorCode,[ErrorCode]);
+end;
+
+function GetLastOSError: Integer;
+begin
+  result:=-1;
+end;
+
+{****************************************************************************
+                              OS utility functions
+****************************************************************************}
+
+function GetPathString: String;
+begin
+  {writeln('Unimplemented GetPathString');}
+  result := '';
+end;
+
+Function GetEnvironmentVariable(Const EnvVar : String) : String;
+begin
+  {writeln('Unimplemented GetEnvironmentVariable');}
+  result:='';
+end;
+
+Function GetEnvironmentVariableCount : Integer;
+begin
+  {writeln('Unimplemented GetEnvironmentVariableCount');}
+  result:=0;
+end;
+
+Function GetEnvironmentString(Index : Integer) : {$ifdef FPC_RTL_UNICODE}UnicodeString{$else}AnsiString{$endif};
+begin
+  {writeln('Unimplemented GetEnvironmentString');}
+  result:='';
+end;
+
+function ExecuteProcess (const Path: RawByteString; const ComLine: RawByteString;Flags:TExecuteFlags=[]):
+                                                                       integer;
+var
+  tmpPath: RawByteString;
+  pcmdline: ShortString;
+  CommandLine: RawByteString;
+  E: EOSError;
+begin
+  tmpPath:=ToSingleByteFileSystemEncodedFileName(Path);
+  pcmdline:=ToSingleByteFileSystemEncodedFileName(ComLine);
+
+  result:=-1; { execute here }
+
+  if result < 0 then begin
+    if ComLine = '' then
+      CommandLine := Path
+    else
+      CommandLine := Path + ' ' + ComLine;
+
+    E := EOSError.CreateFmt (SExecuteProcessFailed, [CommandLine, result]);
+    E.ErrorCode := result;
+    raise E;
+  end;
+end;
+
+function ExecuteProcess (const Path: RawByteString;
+                                  const ComLine: array of RawByteString;Flags:TExecuteFlags=[]): integer;
+var
+  CommandLine: RawByteString;
+  I: integer;
+
+begin
+  Commandline := '';
+  for I := 0 to High (ComLine) do
+   if Pos (' ', ComLine [I]) <> 0 then
+    CommandLine := CommandLine + ' ' + '"' + ToSingleByteFileSystemEncodedFileName(ComLine [I]) + '"'
+   else
+    CommandLine := CommandLine + ' ' + ToSingleByteFileSystemEncodedFileName(Comline [I]);
+  ExecuteProcess := ExecuteProcess (Path, CommandLine);
+end;
+
+procedure Sleep(Milliseconds: cardinal);
+begin
+  {writeln('Unimplemented sleep');}
+end;
+
+
+{****************************************************************************
+                              Initialization code
+****************************************************************************}
+
+Initialization
+  InitExceptions;
+  InitInternational;    { Initialize internationalization settings }
+  OnBeep:=Nil;          { No SysBeep() on the QL for now. }
+
+Finalization
+  FreeTerminateProcs;
+  DoneExceptions;
+end.