diff --git a/rtl/i386/mathu.inc b/rtl/i386/mathu.inc
index eb6825669f..a85db115d5 100644
--- a/rtl/i386/mathu.inc
+++ b/rtl/i386/mathu.inc
@@ -11,199 +11,8 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 **********************************************************************}
+
 {$ASMMODE ATT}
-
- {this optimisations ported from Cris Kaspersky articles 
- 	kpnc@itech.ru, kpnc@programme.ru
- }
- {$define FPC_MATH_HAS_MIN_BYTE}
- function Min(a, b: byte): byte;inline;assembler;nostackframe;
-	 asm
-		movb b, %al
-		subb a ,%al
-		sbbb %cl, %cl
-		andb %cl, %al
-		addb a, %al
-	 end['AL','CL'];
-  
- {$define FPC_MATH_HAS_MAX_BYTE}
- function Max(a, b: byte): byte;inline;assembler;nostackframe;
-	 asm
-		movb b, %al
-		subb a ,%al
-		sbbb %cl, %cl
-		andb %al, %cl
-		movb b ,%al
-		subb %cl,%al
-	 end['AL','CL'];
-
- {$define FPC_MATH_HAS_MIN_DWORD}
- function Min(a, b: LongWord): LongWord;inline;assembler;nostackframe;
-	 asm
-		movl b, %eax
-		subl a ,%eax
-		sbbl %ecx, %ecx
-		andl %ecx, %eax
-		addl a, %eax
-	 end['EAX','ECX'];
-  
- {$define FPC_MATH_HAS_MAX_DWORD}
- function Max(a, b: LongWord): LongWord;inline;assembler;nostackframe;
-	 asm
-		movl b, %eax
-		subl a ,%eax
-		sbbl %ecx, %ecx
-		andl %eax, %ecx
-		movl b ,%eax
-		subl %ecx,%eax
-	 end['EAX','ECX'];
- 
- {$define FPC_MATH_HAS_MIN_QWORD}
- function Min(a, b: QWord): QWord;inline;assembler;nostackframe;
-	 asm
-		movl b, %eax
-		movl b+4, %edx
-		
-		subl a ,%eax
-		sbbl a+4 ,%edx
-		
-		sbbl %ecx, %ecx
-		
-		andl %ecx, %eax
-		andl %ecx, %edx
-		
-		addl a, %eax
-		adcl a+4, %edx
-	 end['EAX','EBX','ECX','EDX'];
- 
- {$define FPC_MATH_HAS_MAX_QWORD}
- function Max(a, b: QWord): QWord;inline;assembler;nostackframe;
-	asm
-		movl b, %eax
-		movl b+4, %edx
-
-		subl a ,%eax
-		sbbl a+4 ,%edx
-
-		sbbl %ebx, %ebx
-		sbbl %ecx, %ecx
-
-		andl %eax, %ebx
-		andl %edx, %ecx
-
-		subl a ,%eax
-		sbbl a+4 ,%edx
-
-		addl %ebx, %eax
-		adcl %ecx, %edx
-	end['EAX','EBX','ECX','EDX'];
-
-{$define FPC_MATH_HAS_Min_DWORDS}
-function MinValue(const Data : PLongWord; const N : cardinal): LongWord;assembler;
-    var
-        saveesi : LongWord;
-    asm
-        movl   %esi,saveesi
-        movl Data,%esi
-        movl N,%ecx
-        lodsl
-        movl    %eax,%edx
-        decl 	%ecx
-        jg 		.LFinalLineLoop
-        jmp     .Lfinish
-.LFinalLineLoop: 
-        lodsl
-        subl %eax ,%edx {eax - a, edx - result=b}
-        sbbl %ebx, %ebx
-        andl %ebx, %eax
-        addl %eax, %edx
-        decl %ecx
-        jne .LFinalLineLoop
-.Lfinish:
-        movl %edx,%eax
-        movl   saveesi, %esi
-    end['EAX','EBX','ECX','EDX'];
-
-{$define FPC_MATH_HAS_Max_DWORDS}
-function MaxValue(const Data : PLongWord; const N : cardinal): LongWord;assembler;
-    var
-        saveesi : LongWord;
-    asm
-        movl   %esi,saveesi
-        movl Data,%esi
-        movl N,%ecx
-        lodsl
-        movl    %eax,%edx
-        decl %ecx
-        jg 		.LFinalLineLoop
-        jmp     .Lfinish
-.LFinalLineLoop: 
-
-        lodsl
-        pushl %edx
-        subl %eax ,%edx {eax - a, edx - result=b}
-        sbbl %ebx, %ebx
-        andl %edx, %ebx
-        popl %edx
-        subl %ebx, %edx
-        
-        decl %ecx
-        jne .LFinalLineLoop
-.Lfinish:
-        movl %edx,%eax
-        movl   saveesi, %esi
-    end['EAX','EBX','ECX','EDX'];
-
-{$define FPC_MATH_HAS_Min_INTS}
-function MinValue(const Data : PInteger; const N : cardinal): Integer;assembler;
-var
-    saveesi : LongWord;
-    asm
-        movl   %esi,saveesi
-        movl    Data,%esi
-        movl    N,%ecx
-        lodsl
-        decl %ecx
-        jg 		.LFinalLineLoop
-        jmp     .Lfinish
-.LFinalLineLoop: 
-        lodsl
-        cmpl %eax ,%edx {eax - a, edx - result=b}
-        jle  .LIAskip
-        movl %eax ,%edx
-.LIAskip:        
-        decl %ecx
-        jne .LFinalLineLoop
-.Lfinish:
-        movl  %edx,%eax
-        movl   saveesi, %esi
-    end['EAX','ECX','EDX'];
-
-{$define FPC_MATH_HAS_Max_INTS}
-function MaxValue(const Data : PInteger; const N : cardinal): Integer;assembler;
-var
-    saveesi : LongWord;
-    asm
-        movl   %esi,saveesi
-        movl    Data,%esi
-        movl    N,%ecx
-        lodsl
-        decl %ecx
-        jg 		.LFinalLineLoop
-        jmp     .Lfinish
-.LFinalLineLoop: 
-        lodsl
-        cmpl %eax ,%edx {eax - a, edx - result=b}
-        jge  .LIAskip
-        movl %eax ,%edx
-.LIAskip:        
-        decl %ecx
-        jne .LFinalLineLoop
-.Lfinish:
-        movl  %edx,%eax
-        movl   saveesi, %esi
-    end['EAX','ECX','EDX'];
-
 {$define FPC_MATH_HAS_ARCTAN2}
 function arctan2(y,x : float) : float;assembler;
   asm
diff --git a/rtl/objpas/math.pp b/rtl/objpas/math.pp
index 5136586c75..53639cc01a 100644
--- a/rtl/objpas/math.pp
+++ b/rtl/objpas/math.pp
@@ -136,10 +136,6 @@ interface
 function MinIntValue(const Data: array of Integer): Integer;
 function MaxIntValue(const Data: array of Integer): Integer;
 
-function Min(a, b: byte): byte;inline;
-function Max(a, b: byte): byte;inline;
-function Min(a, b: ShortInt): ShortInt;inline;
-function Max(a, b: ShortInt): ShortInt;inline;
 { Extra, not present in Delphi, but used frequently  }
 function Min(a, b: Integer): Integer;inline;
 function Max(a, b: Integer): Integer;inline;
@@ -147,13 +143,8 @@ function Max(a, b: Integer): Integer;inline;
 function Min(a, b: Cardinal): Cardinal;
 function Max(a, b: Cardinal): Cardinal;
 }
-function Min(a, b: LongWord): LongWord;inline;
-function Max(a, b: LongWord): LongWord;inline;
 function Min(a, b: Int64): Int64;inline;
 function Max(a, b: Int64): Int64;inline;
-function Min(a, b: QWord): QWord;inline;
-function Max(a, b: QWord): QWord;inline;
-
 {$ifdef FPC_HAS_TYPE_SINGLE}
 function Min(a, b: Single): Single;inline;
 function Max(a, b: Single): Single;inline;
@@ -175,8 +166,6 @@ function InRange(const AValue, AMin, AMax: Double): Boolean;inline;
 
 function EnsureRange(const AValue, AMin, AMax: Integer): Integer;inline;
 function EnsureRange(const AValue, AMin, AMax: Int64): Int64;inline;
-function EnsureRange(const AValue, AMin, AMax: LongWord): LongWord;inline;
-function EnsureRange(const AValue, AMin, AMax: QWord): QWord;inline;
 {$ifdef FPC_HAS_TYPE_DOUBLE}
 function EnsureRange(const AValue, AMin, AMax: Double): Double;inline;
 {$endif FPC_HAS_TYPE_DOUBLE}
@@ -421,23 +410,11 @@ function maxvalue(const data : array of Extended) : Extended;
 function maxvalue(const data : PExtended; Const N : Integer) : Extended;
 {$endif FPC_HAS_TYPE_EXTENDED}
 
-function MinValue(const Data: array of LongWord): LongWord;
-function MinValue(const Data : PLongWord; Const N : cardinal): LongWord;
-
-function MinValue(const Data: array of byte): byte;
-function MinValue(const Data : PByte; Const N : cardinal): byte;
-
 function minvalue(const data : array of integer) : Integer;
-function MinValue(const Data : PInteger; Const N : cardinal): Integer;
-
-function MaxValue(const Data: array of LongWord): LongWord;
-function MaxValue(const Data : PLongWord; Const N : cardinal): LongWord;
-
-function MaxValue(const Data: array of byte): byte;
-function MaxValue(const Data : PByte; Const N : cardinal): byte;
+function MinValue(const Data : PInteger; Const N : Integer): Integer;
 
 function maxvalue(const data : array of integer) : Integer;
-function maxvalue(const data : PInteger; Const N : cardinal) : Integer;
+function maxvalue(const data : PInteger; Const N : Integer) : Integer;
 
 { returns random values with gaussian distribution }
 function randg(mean,stddev : float) : float;
@@ -1728,44 +1705,12 @@ begin
     If Data[I] > Result Then Result := Data[I];
 end;
 
-function MinValue(const Data: array of LongWord): LongWord;
-begin
-  Result:=MinValue(PLongWord(@Data[0]),Length(Data))
-end;
-
-{$ifndef FPC_MATH_HAS_MIN_DWORDS}
-function MinValue(const Data : PLongWord; Const N : cardinal): LongWord;
-var
-  I			: Integer;
-begin
-  Result := Data[0];
-    For I := 1 To N-1 do
-		Result := Min(Data[I], Result);
-end;
-{$endif FPC_MATH_HAS_MIN_DWORDS}
-
-function MinValue(const Data: array of byte): byte;
-begin
-  Result:=MinValue(PByte(@Data[0]),Length(Data))
-end;
-
-{$ifndef FPC_MATH_HAS_MIN_BYTES}
-function MinValue(const Data : PByte; Const N : cardinal): byte;
-var
-  I: Integer;
-begin
-	Result := Data[0];
-	For I := 1 To N-1 do 
-		Result := Min(Data[I], Result);
-end;
-{$endif FPC_MATH_HAS_MIN_BYTES}
-
 function MinValue(const Data: array of Integer): Integer;
+
 begin
   Result:=MinValue(Pinteger(@Data[0]),High(Data)+1)
 end;
 
-{$ifndef FPC_MATH_HAS_MIN_INTS}
 function MinValue(const Data: PInteger; Const N : Integer): Integer;
 var
   I: Integer;
@@ -1774,17 +1719,18 @@ begin
   For I := 1 To N-1 do
     If Data[I] < Result Then Result := Data[I];
 end;
-{$endif FPC_MATH_HAS_MIN_INTS}
 
 function MaxValue(const Data: array of Integer): Integer;
+
 begin
   Result:=MaxValue(PInteger(@Data[0]),High(Data)+1)
 end;
 
-{$ifndef FPC_MATH_HAS_MAX_INTS}
 function maxvalue(const data : PInteger; Const N : Integer) : Integer;
+
 var
-  i : longint;
+   i : longint;
+
 begin
    { get an initial value }
    maxvalue:=data[0];
@@ -1792,39 +1738,6 @@ begin
      if data[i]>maxvalue then
        maxvalue:=data[i];
 end;
-{$endif FPC_MATH_HAS_MAX_INTS}
-
-function MaxValue(const Data: array of LongWord): LongWord;
-begin
-  Result:=MaxValue(PLongWord(@Data[0]),High(Data)+1)
-end;
-
-{$ifndef FPC_MATH_HAS_MAX_DWORDS}
-function MaxValue(const Data : PLongWord; Const N : cardinal): LongWord;
-var
-  I: Integer;
-begin
-  Result := Data[0];
-  For I := 1 To N-1 do 
-	Result := Max(Data[I], Result);
-end;
-{$endif FPC_MATH_HAS_MAX_DWORDS}
-
-function MaxValue(const Data: array of byte): byte;
-begin
-  Result:=MaxValue(PByte(@Data[0]),High(Data)+1)
-end;
-
-{$ifndef FPC_MATH_HAS_MAX_BYTES}
-function MaxValue(const Data : PByte; Const N : cardinal): byte;
-var
-  I: Integer;
-begin
-  Result := Data[0];
-  For I := 1 To N-1 do 
-	Result := Max(Data[I], Result);
-end;
-{$endif FPC_MATH_HAS_MAX_BYTES}
 
 {$ifdef FPC_HAS_TYPE_SINGLE}
 function minvalue(const data : array of Single) : Single;
@@ -1834,8 +1747,10 @@ begin
 end;
 
 function minvalue(const data : PSingle; Const N : Integer) : Single;
+
 var
-  i : longint;
+   i : longint;
+
 begin
    { get an initial value }
    minvalue:=data[0];
@@ -1852,8 +1767,10 @@ begin
 end;
 
 function maxvalue(const data : PSingle; Const N : Integer) : Single;
+
 var
    i : longint;
+
 begin
    { get an initial value }
    maxvalue:=data[0];
@@ -1871,8 +1788,10 @@ begin
 end;
 
 function minvalue(const data : PDouble; Const N : Integer) : Double;
+
 var
    i : longint;
+
 begin
    { get an initial value }
    minvalue:=data[0];
@@ -1881,6 +1800,7 @@ begin
        minvalue:=data[i];
 end;
 
+
 function maxvalue(const data : array of Double) : Double;
 
 begin
@@ -1888,8 +1808,10 @@ begin
 end;
 
 function maxvalue(const data : PDouble; Const N : Integer) : Double;
+
 var
    i : longint;
+
 begin
    { get an initial value }
    maxvalue:=data[0];
@@ -1910,6 +1832,7 @@ function minvalue(const data : PExtended; Const N : Integer) : Extended;
 
 var
    i : longint;
+
 begin
    { get an initial value }
    minvalue:=data[0];
@@ -1926,8 +1849,10 @@ begin
 end;
 
 function maxvalue(const data : PExtended; Const N : Integer) : Extended;
+
 var
    i : longint;
+
 begin
    { get an initial value }
    maxvalue:=data[0];
@@ -1937,47 +1862,7 @@ begin
 end;
 {$endif FPC_HAS_TYPE_EXTENDED}
 
-{$ifndef FPC_MATH_HAS_MIN_BYTE}
-function Min(a, b: byte): byte;inline;
-begin
-  if a < b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MIN_BYTE}
 
-{$ifndef FPC_MATH_HAS_MAX_BYTE}
-function Max(a, b: byte): byte;inline;
-begin
-  if a > b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MAX_BYTE}
-
-{$ifndef FPC_MATH_HAS_MIN_SINT}
-function Min(a, b: ShortInt): ShortInt;inline;
-begin
-  if a < b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MIN_SINT}
-
-{$ifndef FPC_MATH_HAS_MAX_SINT}
-function Max(a, b: ShortInt): ShortInt;inline;
-begin
-  if a > b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MAX_SINT}
-
-{$ifndef FPC_MATH_HAS_MIN_INT}
 function Min(a, b: Integer): Integer;inline;
 begin
   if a < b then
@@ -1985,9 +1870,7 @@ begin
   else
     Result := b;
 end;
-{$endif FPC_MATH_HAS_MIN_INT}
 
-{$ifndef FPC_MATH_HAS_MAX_INT}
 function Max(a, b: Integer): Integer;inline;
 begin
   if a > b then
@@ -1995,7 +1878,6 @@ begin
   else
     Result := b;
 end;
-{$endif FPC_MATH_HAS_MAX_INT}
 
 {
 function Min(a, b: Cardinal): Cardinal;inline;
@@ -2014,27 +1896,7 @@ begin
     Result := b;
 end;
 }
-{$ifndef FPC_MATH_HAS_MIN_DWORD}
-function Min(a, b: LongWord): LongWord;inline;
-begin
-  if a < b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MIN_DWORD}
 
-{$ifndef FPC_MATH_HAS_MAX_DWORD}
-function Max(a, b: LongWord): LongWord;inline;
-begin
-  if a > b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MAX_DWORD}
-
-{$ifndef FPC_MATH_HAS_MIN_INT64}
 function Min(a, b: Int64): Int64;inline;
 begin
   if a < b then
@@ -2042,9 +1904,7 @@ begin
   else
     Result := b;
 end;
-{$endif FPC_MATH_HAS_MIN_INT64}
 
-{$ifndef FPC_MATH_HAS_MAX_INT64}
 function Max(a, b: Int64): Int64;inline;
 begin
   if a > b then
@@ -2052,27 +1912,6 @@ begin
   else
     Result := b;
 end;
-{$endif FPC_MATH_HAS_MIN_INT64}
-
-{$ifndef FPC_MATH_HAS_MIN_QWORD}
-function Min(a, b: QWord): QWord;inline;
-begin
-  if a < b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MIN_QWORD}
-
-{$ifndef FPC_MATH_HAS_MAX_QWORD}
-function Max(a, b: QWord): QWord;inline;
-begin
-  if a > b then
-    Result := a
-  else
-    Result := b;
-end;
-{$endif FPC_MATH_HAS_MAX_QWORD}
 
 {$ifdef FPC_HAS_TYPE_SINGLE}
 function Min(a, b: Single): Single;inline;
@@ -2148,6 +1987,7 @@ end;
 {$endif FPC_HAS_TYPE_DOUBLE}
 
 function EnsureRange(const AValue, AMin, AMax: Integer): Integer;inline;
+
 begin
   Result:=AValue;
   If Result<AMin then
@@ -2157,6 +1997,7 @@ begin
 end;
 
 function EnsureRange(const AValue, AMin, AMax: Int64): Int64;inline;
+
 begin
   Result:=AValue;
   If Result<AMin then
@@ -2165,18 +2006,9 @@ begin
     Result:=AMax;
 end;
 
-function EnsureRange(const AValue, AMin, AMax: LongWord): LongWord;inline;
-begin
-	Result := Min(AMax,Max(AValue, AMin));
-end;
-
-function EnsureRange(const AValue, AMin, AMax: QWord): QWord;inline;
-begin
-	Result := Min(AMax,Max(AValue, AMin));
-end;
-
 {$ifdef FPC_HAS_TYPE_DOUBLE}
 function EnsureRange(const AValue, AMin, AMax: Double): Double;inline;
+
 begin
   Result:=AValue;
   If Result<AMin then
diff --git a/rtl/x86_64/mathu.inc b/rtl/x86_64/mathu.inc
index 74a925d22c..836140674b 100644
--- a/rtl/x86_64/mathu.inc
+++ b/rtl/x86_64/mathu.inc
@@ -11,32 +11,7 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 **********************************************************************}
-{$ASMMODE ATT}
 
- {this optimisations ported from Cris Kaspersky articles 
- 	kpnc@itech.ru, kpnc@programme.ru
- }
- {$define FPC_MATH_HAS_MIN_QWORD}
- function Min(a, b: QWord): QWord;inline;assembler;nostackframe;
-	 asm
-		movq b, %rax
-		subq a ,%rax
-		sbbq %rcx, %rcx
-		andq %rcx, %rax
-		addq a, %rax
-	 end['RAX','RCX'];
-  
- {$define FPC_MATH_HAS_MAX_QWORD}
- function Max(a, b: QWord): QWord;inline;assembler;nostackframe;
-	 asm
-		movq b, %rax
-		subq a ,%rax
-		sbbq %rcx, %rcx
-		andq %rax, %rcx
-		movq b ,%rax
-		subq %rcx,%rax
-	 end['RAX','RCX'];
- 
 {$ifndef WIN64}
 {$define FPC_MATH_HAS_ARCTAN2}
 function arctan2(y,x : float) : float;assembler;