www.pudn.com > X264_20060729.rar > cpu-a.asm
;*****************************************************************************
;* cpu.asm: h264 encoder library
;*****************************************************************************
;* Copyright (C) 2003 x264 project
;* $Id: cpu.asm,v 1.1 2004/06/03 19:27:07 fenrir Exp $
;*
;* Authors: Laurent Aimar <fenrir@via.ecp.fr>
;*
;* This program is free software; you can redistribute it and/or modify
;* it under the terms of the GNU General Public License as published by
;* the Free Software Foundation; either version 2 of the License, or
;* (at your option) any later version.
;*
;* 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. See the
;* GNU General Public License for more details.
;*
;* You should have received a copy of the GNU General Public License
;* along with this program; if not, write to the Free Software
;* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
;*****************************************************************************
BITS 32
;=============================================================================
; Macros and other preprocessor constants
;=============================================================================
>include "i386inc.asm"
;=============================================================================
; Code
;=============================================================================
SECTION .text
cglobal x264_cpu_cpuid_test
cglobal x264_cpu_cpuid
cglobal x264_emms
ALIGN 16
;-----------------------------------------------------------------------------
; int __cdecl x264_cpu_cpuid_test( void ) return 0 if unsupported
;-----------------------------------------------------------------------------
x264_cpu_cpuid_test:
pushfd
push ebx
push ebp
push esi
push edi
pushfd
pop eax
mov ebx, eax
xor eax, 0x200000
push eax
popfd
pushfd
pop eax
xor eax, ebx
pop edi
pop esi
pop ebp
pop ebx
popfd
ret
ALIGN 16
;-----------------------------------------------------------------------------
; int __cdecl x264_cpu_cpuid( int op, int *eax, int *ebx, int *ecx, int *edx )
;-----------------------------------------------------------------------------
x264_cpu_cpuid:
push ebp
mov ebp, esp
push ebx
push esi
push edi
mov eax, [ebp + 8]
cpuid
mov esi, [ebp + 12]
mov [esi], eax
mov esi, [ebp + 16]
mov [esi], ebx
mov esi, [ebp + 20]
mov [esi], ecx
mov esi, [ebp + 24]
mov [esi], edx
pop edi
pop esi
pop ebx
pop ebp
ret
ALIGN 16
;-----------------------------------------------------------------------------
; void __cdecl x264_emms( void )
;-----------------------------------------------------------------------------
x264_emms:
emms
ret