Initial community commit

Src/libvpShared/corelibs/CpuID/Win32/TrashXMMreg.asm

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+;//==========================================================================
+;//
+;//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
+;//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+;//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
+;//  PURPOSE.
+;//
+;//  Copyright (c) 1999 - 2001  On2 Technologies Inc. All Rights Reserved.
+;//
+;//--------------------------------------------------------------------------
+
+
+
+;
+; **-TrashXMMReg
+;
+; This function is meant to be run on a Windows NT system to
+; try and determine if the OS supports the XMM registers or
+; not.
+;
+; This function is number 2 in a set of three.  The other
+; functions are...
+;
+;    InitXMMReg
+;    VerifyXMMReg
+;
+; Assumptions:
+;   No necessary for this function to work properly but
+;   IntiXMMReg should have been called to initilize the
+;   XMM registers to a predetermined value
+;
+; Input:
+;   None
+;
+; Output:
+;  No return value.  But XMM registers 
+;  0, 1, 2 written to 0's
+;
+;
+
+        .686P
+		.XMM
+        .MODEL  flat, SYSCALL, os_dos
+        .DATA 
+
+TORQ_CX_DATA SEGMENT PAGE PUBLIC USE32 'DATA' 
+
+         ALIGN 32
+
+    Zeros       REAL4   0.0
+                REAL4   0.0
+                REAL4   0.0
+                REAL4   0.0
+
+
+NAME TrashXMMReg
+
+PUBLIC TrashXMMReg_
+PUBLIC _TrashXMMReg
+
+        .CODE
+
+; void TrashXMMReg( void )
+TrashXMMReg_:
+_TrashXMMReg:
+    push    esi ;safety sh*&
+    push    edi
+    push    ebp
+    push    ebx 
+    push    ecx
+    push    edx
+
+    movaps  xmm0,Zeros
+    movaps  xmm1,Zeros
+    movaps  xmm2,Zeros
+
+Exit:
+    pop     edx ;safety sh*&
+    pop     ecx
+    pop     ebx
+    pop     ebp
+    pop     edi
+    pop     esi
+    ret
+
+;************************************************
+         END