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;/****************************************************************************** |
;/**************************************************************************** |
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; * * |
; * |
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; * This file is part of XviD, a free MPEG-4 video encoder/decoder * |
; * XVID MPEG-4 VIDEO CODEC |
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; * * |
; * - CPUID check processors capabilities - |
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; * XviD is an implementation of a part of one or more MPEG-4 Video tools * |
; * |
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; * as specified in ISO/IEC 14496-2 standard. Those intending to use this * |
; * Copyright (C) 2001 Michael Militzer <isibaar@xvid.org> |
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; * software module in hardware or software products are advised that its * |
; * |
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; * use may infringe existing patents or copyrights, and any such use * |
; * This program is free software ; you can redistribute it and/or modify |
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; * would be at such party's own risk. The original developer of this * |
; * it under the terms of the GNU General Public License as published by |
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; * software module and his/her company, and subsequent editors and their * |
; * the Free Software Foundation ; either version 2 of the License, or |
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; * companies, will have no liability for use of this software or * |
; * (at your option) any later version. |
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; * modifications or derivatives thereof. * |
; * |
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; * * |
; * This program is distributed in the hope that it will be useful, |
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; * XviD is free software; you can redistribute it and/or modify it * |
; * but WITHOUT ANY WARRANTY ; without even the implied warranty of |
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; * under the terms of the GNU General Public License as published by * |
; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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; * the Free Software Foundation; either version 2 of the License, or * |
; * GNU General Public License for more details. |
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; * (at your option) any later version. * |
; * |
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; * * |
; * You should have received a copy of the GNU General Public License |
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; * XviD is distributed in the hope that it will be useful, but * |
; * along with this program ; if not, write to the Free Software |
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; * WITHOUT ANY WARRANTY; without even the implied warranty of * |
; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
; * |
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; * GNU General Public License for more details. * |
; * $Id$ |
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; * * |
; * |
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; * You should have received a copy of the GNU General Public License * |
; ***************************************************************************/ |
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; * along with this program; if not, write to the Free Software * |
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; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
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; * * |
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; ******************************************************************************/ |
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; |
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;/****************************************************************************** |
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; * * |
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; * cpuid.asm, check cpu features * |
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; * * |
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; * Copyright (C) 2001 - Michael Militzer <isibaar@xvid.org>, * |
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; * * |
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; * For more information visit the XviD homepage: http://www.xvid.org * |
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; * * |
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; ******************************************************************************/ |
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; |
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;/****************************************************************************** |
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; * * |
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; * Revision history: * |
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; * * |
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; * 17.12.2001 initial version (Isibaar) * |
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; * * |
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; ******************************************************************************/ |
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bits 32 |
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%define CPUID_TSC 0x00000010 |
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%define CPUID_MMX 0x00800000 |
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%define CPUID_SSE 0x02000000 |
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%define CPUID_SSE2 0x04000000 |
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%define EXT_CPUID_3DNOW 0x80000000 |
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%define EXT_CPUID_AMD_3DNOWEXT 0x40000000 |
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%define EXT_CPUID_AMD_MMXEXT 0x00400000 |
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%define XVID_CPU_MMX 0x00000001 |
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%define XVID_CPU_MMXEXT 0x00000002 |
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%define XVID_CPU_SSE 0x00000004 |
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%define XVID_CPU_SSE2 0x00000008 |
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%define XVID_CPU_3DNOW 0x00000010 |
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%define XVID_CPU_3DNOWEXT 0x00000020 |
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%define XVID_CPU_TSC 0x00000040 |
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BITS 32 |
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%macro cglobal 1 |
%macro cglobal 1 |
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%ifdef PREFIX |
%ifdef PREFIX |
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%ifdef MARK_FUNCS |
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global _%1:function %1.endfunc-%1 |
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%define %1 _%1:function %1.endfunc-%1 |
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%else |
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global _%1 |
global _%1 |
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%define %1 _%1 |
%define %1 _%1 |
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%endif |
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%else |
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%ifdef MARK_FUNCS |
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global %1:function %1.endfunc-%1 |
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%else |
%else |
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global %1 |
global %1 |
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%endif |
%endif |
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%endif |
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%endmacro |
%endmacro |
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ALIGN 32 |
;============================================================================= |
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; Constants |
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;============================================================================= |
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section .data |
%define CPUID_TSC 0x00000010 |
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%define CPUID_MMX 0x00800000 |
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%define CPUID_SSE 0x02000000 |
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%define CPUID_SSE2 0x04000000 |
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%define CPUID_SSE3 0x00000001 |
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features dd 0 |
%define EXT_CPUID_3DNOW 0x80000000 |
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%define EXT_CPUID_AMD_3DNOWEXT 0x40000000 |
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%define EXT_CPUID_AMD_MMXEXT 0x00400000 |
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vendor dd 0,0,0 |
;;; NB: Make sure these defines match the ones defined in xvid.h |
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vendorAMD db "AuthenticAMD" |
%define XVID_CPU_MMX (1<< 0) |
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%define XVID_CPU_MMXEXT (1<< 1) |
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%define XVID_CPU_SSE (1<< 2) |
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%define XVID_CPU_SSE2 (1<< 3) |
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%define XVID_CPU_SSE3 (1<< 8) |
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%define XVID_CPU_3DNOW (1<< 4) |
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%define XVID_CPU_3DNOWEXT (1<< 5) |
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%define XVID_CPU_TSC (1<< 6) |
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;============================================================================= |
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; Read only data |
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;============================================================================= |
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%macro CHECK_FEATURE 3 |
ALIGN 32 |
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%ifdef FORMAT_COFF |
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SECTION .rodata |
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%else |
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SECTION .rodata align=16 |
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%endif |
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mov ecx, %1 |
vendorAMD: |
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and ecx, edx |
db "AuthenticAMD" |
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neg ecx |
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sbb ecx, ecx |
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and ecx, %2 |
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or [%3], ecx |
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;============================================================================= |
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; Macros |
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;============================================================================= |
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%macro CHECK_FEATURE 4 |
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mov eax, %1 |
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and eax, %4 |
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neg eax |
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sbb eax, eax |
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and eax, %2 |
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or %3, eax |
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%endmacro |
%endmacro |
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section .text |
;============================================================================= |
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; Code |
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;============================================================================= |
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SECTION .text |
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; int check_cpu_feature(void) |
; int check_cpu_feature(void) |
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cglobal check_cpu_features |
cglobal check_cpu_features |
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check_cpu_features: |
check_cpu_features: |
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pushad |
push ebx |
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pushfd |
push esi |
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push edi |
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push ebp |
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sub esp, 12 ; Stack space for vendor name |
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xor ebp, ebp |
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; CPUID command ? |
; CPUID command ? |
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pushfd |
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pop eax |
pop eax |
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mov ecx, eax |
mov ecx, eax |
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xor eax, 0x200000 |
xor eax, 0x200000 |
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; get vendor string, used later |
; get vendor string, used later |
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xor eax, eax |
xor eax, eax |
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cpuid |
cpuid |
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mov [vendor], ebx ; vendor string |
mov [esp], ebx ; vendor string |
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mov [vendor+4], edx |
mov [esp+4], edx |
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mov [vendor+8], ecx |
mov [esp+8], ecx |
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test eax, eax |
test eax, eax |
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jz near .cpu_quit |
jz near .cpu_quit |
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mov eax, 1 |
mov eax, 1 |
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cpuid |
cpuid |
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; RDTSC command ? |
; RDTSC command ? |
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CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, features |
CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, ebp, edx |
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; MMX support ? |
; MMX support ? |
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CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, features |
CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, ebp, edx |
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; SSE support ? |
; SSE support ? |
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CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT+XVID_CPU_SSE), features |
CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT|XVID_CPU_SSE), ebp, edx |
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; SSE2 support? |
; SSE2 support? |
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CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, features |
CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, ebp, edx |
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; SSE3 support? |
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CHECK_FEATURE CPUID_SSE3, XVID_CPU_SSE3, ebp, ecx |
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; extended functions? |
; extended functions? |
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mov eax, 0x80000000 |
mov eax, 0x80000000 |
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mov eax, 0x80000001 |
mov eax, 0x80000001 |
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cpuid |
cpuid |
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; 3DNow! support ? |
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CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, features |
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; AMD cpu ? |
; AMD cpu ? |
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lea esi, [vendorAMD] |
lea esi, [vendorAMD] |
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lea edi, [vendor] |
lea edi, [esp] |
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mov ecx, 12 |
mov ecx, 12 |
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cld |
cld |
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repe cmpsb |
repe cmpsb |
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jnz .cpu_quit |
jnz .cpu_quit |
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; 3DNow! support ? |
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CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, ebp, edx |
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; 3DNOW extended ? |
; 3DNOW extended ? |
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CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, features |
CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, ebp, edx |
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; extended MMX ? |
; extended MMX ? |
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CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, features |
CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, ebp, edx |
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.cpu_quit: |
.cpu_quit: |
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popad |
mov eax, ebp |
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add esp, 12 |
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mov eax, [features] |
pop ebp |
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pop edi |
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pop esi |
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pop ebx |
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ret |
ret |
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.endfunc |
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; sse/sse2 operating support detection routines |
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; these will trigger an invalid instruction signal if not supported. |
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ALIGN 16 |
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cglobal sse_os_trigger |
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sse_os_trigger: |
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xorps xmm0, xmm0 |
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ret |
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.endfunc |
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ALIGN 16 |
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cglobal sse2_os_trigger |
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sse2_os_trigger: |
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xorpd xmm0, xmm0 |
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ret |
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.endfunc |
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; enter/exit mmx state |
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ALIGN 16 |
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cglobal emms_mmx |
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emms_mmx: |
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emms |
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ret |
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.endfunc |
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; faster enter/exit mmx state |
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ALIGN 16 |
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cglobal emms_3dn |
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emms_3dn: |
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femms |
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ret |
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.endfunc |
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