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