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revision 1.1, Fri Mar 8 02:45:00 2002 UTC revision 1.3, Sun Nov 17 00:51:11 2002 UTC
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1  ;/******************************************************************************  ;/******************************************************************************
2  ; *                                                                            *  ; *
3  ; *  This file is part of XviD, a free MPEG-4 video encoder/decoder            *  ; *  Copyright (C) 2001 - Michael Militzer <isibaar@xvid.org>
4  ; *                                                                            *  ; *
5  ; *  XviD is an implementation of a part of one or more MPEG-4 Video tools     *  ; *  This file is part of XviD, a free MPEG-4 video encoder/decoder
6  ; *  as specified in ISO/IEC 14496-2 standard.  Those intending to use this    *  ; *
7  ; *  software module in hardware or software products are advised that its     *  ; *  XviD is free software; you can redistribute it and/or modify it
8  ; *  use may infringe existing patents or copyrights, and any such use         *  ; *  under the terms of the GNU General Public License as published by
9  ; *  would be at such party's own risk.  The original developer of this        *  ; *  the Free Software Foundation; either version 2 of the License, or
10  ; *  software module and his/her company, and subsequent editors and their     *  ; *  (at your option) any later version.
11  ; *  companies, will have no liability for use of this software or             *  ; *
12  ; *  modifications or derivatives thereof.                                     *  ; *  This program is distributed in the hope that it will be useful,
13  ; *                                                                            *  ; *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  ; *  XviD is free software; you can redistribute it and/or modify it           *  ; *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  ; *  under the terms of the GNU General Public License as published by         *  ; *  GNU General Public License for more details.
16  ; *  the Free Software Foundation; either version 2 of the License, or         *  ; *
17  ; *  (at your option) any later version.                                       *  ; *  You should have received a copy of the GNU General Public License
18  ; *                                                                            *  ; *  along with this program; if not, write to the Free Software
19  ; *  XviD is distributed in the hope that it will be useful, but               *  ; *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  ; *  WITHOUT ANY WARRANTY; without even the implied warranty of                *  ; *
21  ; *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *  ; *  Under section 8 of the GNU General Public License, the copyright
22  ; *  GNU General Public License for more details.                              *  ; *  holders of XVID explicitly forbid distribution in the following
23  ; *                                                                            *  ; *  countries:
24  ; *  You should have received a copy of the GNU General Public License         *  ; *
25  ; *  along with this program; if not, write to the Free Software               *  ; *    - Japan
26  ; *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA  *  ; *    - United States of America
27  ; *                                                                            *  ; *
28  ; ******************************************************************************/  ; *  Linking XviD statically or dynamically with other modules is making a
29  ;  ; *  combined work based on XviD.  Thus, the terms and conditions of the
30  ;/******************************************************************************  ; *  GNU General Public License cover the whole combination.
31  ; *                                                                            *  ; *
32  ; *  cpuid.asm, check cpu features                                             *  ; *  As a special exception, the copyright holders of XviD give you
33  ; *                                                                            *  ; *  permission to link XviD with independent modules that communicate with
34  ; *  Copyright (C) 2001 - Michael Militzer <isibaar@xvid.org>,                 *  ; *  XviD solely through the VFW1.1 and DShow interfaces, regardless of the
35  ; *                                                                            *  ; *  license terms of these independent modules, and to copy and distribute
36  ; *  For more information visit the XviD homepage: http://www.xvid.org         *  ; *  the resulting combined work under terms of your choice, provided that
37  ; *                                                                            *  ; *  every copy of the combined work is accompanied by a complete copy of
38  ; ******************************************************************************/  ; *  the source code of XviD (the version of XviD used to produce the
39  ;  ; *  combined work), being distributed under the terms of the GNU General
40  ;/******************************************************************************  ; *  Public License plus this exception.  An independent module is a module
41  ; *                                                                            *  ; *  which is not derived from or based on XviD.
42  ; *  Revision history:                                                         *  ; *
43  ; *                                                                            *  ; *  Note that people who make modified versions of XviD are not obligated
44  ; *  17.12.2001 initial version  (Isibaar)                                     *  ; *  to grant this special exception for their modified versions; it is
45  ; *                                                                            *  ; *  their choice whether to do so.  The GNU General Public License gives
46    ; *  permission to release a modified version without this exception; this
47    ; *  exception also makes it possible to release a modified version which
48    ; *  carries forward this exception.
49    ; *
50    ; * $Id$
51  ; ******************************************************************************/  ; ******************************************************************************/
52    
53  bits 32  bits 32
# Line 78  Line 83 
83    
84  section .data  section .data
85    
 features        dd 0  
   
 vendor          dd 0,0,0  
86  vendorAMD       db "AuthenticAMD"  vendorAMD       db "AuthenticAMD"
87    
88  %macro  CHECK_FEATURE         3  %macro  CHECK_FEATURE         3
# Line 90  Line 92 
92      neg     ecx      neg     ecx
93      sbb     ecx, ecx      sbb     ecx, ecx
94      and     ecx, %2      and     ecx, %2
95      or      [%3], ecx      or      %3, ecx
96    
97  %endmacro  %endmacro
98    
# Line 101  Line 103 
103  cglobal check_cpu_features  cglobal check_cpu_features
104  check_cpu_features:  check_cpu_features:
105    
106          pushad          push ebx
107          pushfd          push esi
108            push edi
109            push ebp
110    
111            xor ebp,ebp
112    
113          ; CPUID command ?          ; CPUID command ?
114            pushfd
115          pop             eax          pop             eax
116          mov             ecx, eax          mov             ecx, eax
117          xor             eax, 0x200000          xor             eax, 0x200000
# Line 120  Line 127 
127          ; get vendor string, used later          ; get vendor string, used later
128      xor     eax, eax      xor     eax, eax
129      cpuid      cpuid
130      mov     [vendor], ebx       ; vendor string      mov     [esp-12], ebx       ; vendor string
131      mov     [vendor+4], edx      mov     [esp-12+4], edx
132      mov     [vendor+8], ecx      mov     [esp-12+8], ecx
133      test    eax, eax      test    eax, eax
134    
135      jz      near .cpu_quit      jz      near .cpu_quit
# Line 130  Line 137 
137      mov     eax, 1      mov     eax, 1
138      cpuid      cpuid
139    
   
140      ; RDTSC command ?      ; RDTSC command ?
141          CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, features          CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, ebp
142    
143      ; MMX support ?      ; MMX support ?
144          CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, features          CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, ebp
145    
146      ; SSE support ?      ; SSE support ?
147          CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT+XVID_CPU_SSE), features          CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT|XVID_CPU_SSE), ebp
148    
149          ; SSE2 support?          ; SSE2 support?
150          CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, features          CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, ebp
   
151    
152          ; extended functions?          ; extended functions?
153      mov     eax, 0x80000000      mov     eax, 0x80000000
# Line 153  Line 158 
158      mov     eax, 0x80000001      mov     eax, 0x80000001
159      cpuid      cpuid
160    
     ; 3DNow! support ?  
         CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, features  
   
161          ; AMD cpu ?          ; AMD cpu ?
162      lea     esi, [vendorAMD]      lea     esi, [vendorAMD]
163      lea     edi, [vendor]      lea     edi, [esp-12]
164      mov     ecx, 12      mov     ecx, 12
165      cld      cld
166      repe    cmpsb      repe    cmpsb
167      jnz     .cpu_quit      jnz     .cpu_quit
168    
169        ; 3DNow! support ?
170            CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, ebp
171    
172          ; 3DNOW extended ?          ; 3DNOW extended ?
173          CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, features          CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, ebp
174    
175          ; extended MMX ?          ; extended MMX ?
176          CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, features          CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, ebp
177    
178  .cpu_quit:  .cpu_quit:
179    
180          popad          mov eax, ebp
181    
182          mov eax, [features]          pop ebp
183            pop edi
184            pop esi
185            pop ebx
186    
187          ret          ret
188    
189    
190    
191    ; sse/sse2 operating support detection routines
192    ; these will trigger an invalid instruction signal if not supported.
193    
194    cglobal sse_os_trigger
195    align 16
196    sse_os_trigger:
197            xorps xmm0, xmm0
198            ret
199    
200    
201    cglobal sse2_os_trigger
202    align 16
203    sse2_os_trigger:
204            xorpd xmm0, xmm0
205            ret
206    
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