* i386 and x86_64 changes for Delphi compatibility:

* 'mxcsr' variable made public and renamed to DefaultMXCSR.
  * GetSSECSR and SetSSECSR renamed to GetMXCSR and SetMXCSR, respectively. Previous names continue to exist as deprecated aliases.

git-svn-id: trunk@27656 -

rtl/i386/i386.inc

@@ -1334,8 +1334,6 @@ const
   MM_MaskUnderflow = %0000100000000000;
   MM_MaskPrecision = %0001000000000000;
 
-  mxcsr : dword = MM_MaskUnderflow or MM_MaskPrecision or MM_MaskDenorm;
-
 
 {$define FPC_SYSTEM_HAS_SYSINITFPU}
 Procedure SysInitFPU;
@@ -1358,7 +1356,7 @@ Procedure SysResetFPU;
     end;
     if has_sse_support then
       begin
-        localmxcsr:=mxcsr;
+        localmxcsr:=DefaultMXCSR;
         asm
           { setup sse exceptions }
           ldmxcsr localmxcsr
@@ -1406,7 +1404,7 @@ procedure fpc_cpucodeinit;
       begin
         Default8087CW:=Get8087CW;
         if has_sse_support then
-          mxcsr:=GetSSECSR;
+          DefaultMXCSR:=GetMXCSR;
       end;
 
     SysResetFPU;

rtl/i386/math.inc

@@ -61,16 +61,16 @@
       end;
 
 
-    procedure SetSSECSR(w : dword);
+    procedure SetMXCSR(w : dword);
       begin
-        mxcsr:=w;
+        defaultmxcsr:=w;
         asm
           ldmxcsr w
         end;
       end;
 
 
-    function GetSSECSR : dword;
+    function GetMXCSR : dword;
       var
         _w : dword;
       begin
@@ -80,6 +80,17 @@
         result:=_w;
       end;
 
+
+    procedure SetSSECSR(w : dword);
+      begin
+        SetMXCSR(w);
+      end;
+
+    function GetSSECSR: dword;
+      begin
+        result:=GetMXCSR;
+      end;
+
 {****************************************************************************
                        EXTENDED data type routines
  ****************************************************************************}

rtl/i386/mathu.inc

@@ -150,7 +150,7 @@ begin
   CtlWord := Get8087CW;
   Set8087CW((CtlWord and $F3FF) or (Ord(RoundMode) shl 10));
   if has_sse_support then
-    SetSSECSR((GetSSECSR and $ffff9fff) or (dword(RoundMode) shl 13));
+    SetMXCSR((GetMXCSR and $ffff9fff) or (dword(RoundMode) shl 13));
   Result := TFPURoundingMode((CtlWord shr 10) and 3);
 end;
 
@@ -180,7 +180,7 @@ begin
   CtlWord := Get8087CW;
   Set8087CW( (CtlWord and $FFC0) or Byte(Longint(Mask)) );
   if has_sse_support then
-    SetSSECSR((GetSSECSR and $ffffe07f) or (dword(Mask) shl 7));
+    SetMXCSR((GetMXCSR and $ffffe07f) or (dword(Mask) shl 7));
   Result := TFPUExceptionMask(Longint(CtlWord and $3F));
 end;
 

rtl/inc/dynlibs.pas

@@ -87,7 +87,7 @@ Function DoSafeLoadLibrary(const Name : UnicodeString) : TLibHandle;
 {$ifdef cpui386}
       if has_sse_support then
 {$endif cpui386}
-        ssecw:=GetSSECSR;
+        ssecw:=GetMXCSR;
 {$endif}
       Result:=doloadlibrary(Name);
       finally
@@ -96,7 +96,7 @@ Function DoSafeLoadLibrary(const Name : UnicodeString) : TLibHandle;
 {$ifdef cpui386}
       if has_sse_support then
 {$endif cpui386}
-        SetSSECSR(ssecw);
+        SetMXCSR(ssecw);
 {$endif}
     end;
   end;

rtl/inc/mathh.inc

@@ -20,10 +20,16 @@
 
     procedure Set8087CW(cw:word);
     function Get8087CW:word;
-  {$ifndef cpui8086}
+{$endif}
-    procedure SetSSECSR(w : dword);
+
-    function GetSSECSR : dword;
+{$if defined (cpui386) or defined(cpux86_64)}
-  {$endif not cpui8086}
+    const
+      DefaultMXCSR: dword = $1900;
+
+    procedure SetMXCSR(w: dword);
+    function GetMXCSR: dword;
+    procedure SetSSECSR(w : dword); deprecated 'Renamed to SetMXCSR';
+    function GetSSECSR : dword; deprecated 'Renamed to GetMXCSR';
 {$endif}
 
   type

rtl/objpas/sysutils/sysutils.inc

@@ -695,7 +695,7 @@ function SafeLoadLibrary(const FileName: AnsiString;
 {$ifdef cpui386}
       if has_sse_support then
 {$endif cpui386}
-        ssecw:=GetSSECSR;
+        ssecw:=GetMXCSR;
 {$endif}
 {$if defined(windows) or defined(win32)}
       Result:=LoadLibraryA(PChar(Filename));
@@ -708,7 +708,7 @@ function SafeLoadLibrary(const FileName: AnsiString;
 {$ifdef cpui386}
       if has_sse_support then
 {$endif cpui386}
-        SetSSECSR(ssecw);
+        SetMXCSR(ssecw);
 {$endif}
 {$if defined(win64) or defined(win32)}
       SetErrorMode(mode);

rtl/x86_64/math.inc

@@ -45,16 +45,16 @@ const
       end;
 
 
-    procedure SetSSECSR(w : dword);
+    procedure SetMXCSR(w : dword);
       begin
-        mxcsr:=w;
+        defaultmxcsr:=w;
         asm
           ldmxcsr w
         end;
       end;
 
 
-    function GetSSECSR : dword;assembler;
+    function GetMXCSR : dword;assembler;
       var
         _w : dword;
       asm
@@ -62,6 +62,18 @@ const
         movl    _w,%eax
       end;
 
+
+    procedure SetSSECSR(w : dword);
+      begin
+        SetMXCSR(w);
+      end;
+
+
+    function GetSSECSR: dword;
+      begin
+        result:=GetMXCSR;
+      end;
+
 {****************************************************************************
                        EXTENDED data type routines
  ****************************************************************************}

rtl/x86_64/mathu.inc

@@ -104,7 +104,7 @@ procedure sincos(theta : single;out sinus,cosinus : single);assembler;
 function GetRoundMode: TFPURoundingMode;
 begin
 {$ifndef FPC_HAS_TYPE_EXTENDED}
-  Result:=TFPURoundingMode((GetSSECSR shr 13) and $3);
+  Result:=TFPURoundingMode((GetMXCSR shr 13) and $3);
 {$else win64}
   Result:=TFPURoundingMode((Get8087CW shr 10) and $3);
 {$endif win64}
@@ -116,9 +116,9 @@ var
   SSECSR: dword;
 begin
   CtlWord:=Get8087CW;
-  SSECSR:=GetSSECSR;
+  SSECSR:=GetMXCSR;
   Set8087CW((CtlWord and $F3FF) or (Ord(RoundMode) shl 10));
-  SetSSECSR((SSECSR and $ffff9fff) or (dword(RoundMode) shl 13));
+  SetMXCSR((SSECSR and $ffff9fff) or (dword(RoundMode) shl 13));
 {$ifdef FPC_HAS_TYPE_EXTENDED}
   Result:=TFPURoundingMode((CtlWord shr 10) and 3);
 {$else}
@@ -143,7 +143,7 @@ end;
 function GetExceptionMask: TFPUExceptionMask;
 begin
 {$ifndef FPC_HAS_TYPE_EXTENDED}
-  Result:=TFPUExceptionMask(dword((GetSSECSR shr 7) and $3f));
+  Result:=TFPUExceptionMask(dword((GetMXCSR shr 7) and $3f));
 {$else win64}
   Result:=TFPUExceptionMask(dword(Get8087CW and $3F));
 {$endif win64}
@@ -155,9 +155,9 @@ var
   SSECSR: dword;
 begin
   CtlWord:=Get8087CW;
-  SSECSR:=GetSSECSR;
+  SSECSR:=GetMXCSR;
   Set8087CW((CtlWord and $FFC0) or Byte(Longint(Mask)));
-  SetSSECSR((SSECSR and $ffffe07f) or (dword(Mask) shl 7));
+  SetMXCSR((SSECSR and $ffffe07f) or (dword(Mask) shl 7));
 {$ifdef FPC_HAS_TYPE_EXTENDED}
   Result:=TFPUExceptionMask(dword(CtlWord and $3F));
 {$else}

rtl/x86_64/x86_64.inc

@@ -932,7 +932,6 @@ const
   MM_MaskUnderflow = %0000100000000000;
   MM_MaskPrecision = %0001000000000000;
 
-  mxcsr : dword = MM_MaskUnderflow or MM_MaskPrecision or MM_MaskDenorm;
 
 procedure fpc_cpuinit;
   begin
@@ -940,7 +939,7 @@ procedure fpc_cpuinit;
     if IsLibrary then
       begin
         Default8087CW:=Get8087CW;
-        mxcsr:=GetSSECSR;
+        DefaultMXCSR:=GetMXCSR;
       end;
     SysResetFPU;
   end;
@@ -959,7 +958,7 @@ Procedure SysResetFPU;
     localfpucw: word;
   begin
     localfpucw:=Default8087CW;
-    localmxcsr:=mxcsr;
+    localmxcsr:=DefaultMXCSR;
     asm
       fninit
       fwait