Parent Directory
| 
Revision Log
Revision 1.1 - (view) (download)
| 1 : | Isibaar | 1.1 | ;/****************************************************************************** |
| 2 : | ; * * | ||
| 3 : | ; * This file is part of XviD, a free MPEG-4 video encoder/decoder * | ||
| 4 : | ; * * | ||
| 5 : | ; * XviD is an implementation of a part of one or more MPEG-4 Video tools * | ||
| 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 * | ||
| 8 : | ; * use may infringe existing patents or copyrights, and any such use * | ||
| 9 : | ; * would be at such party's own risk. The original developer of this * | ||
| 10 : | ; * software module and his/her company, and subsequent editors and their * | ||
| 11 : | ; * companies, will have no liability for use of this software or * | ||
| 12 : | ; * modifications or derivatives thereof. * | ||
| 13 : | ; * * | ||
| 14 : | ; * XviD is free software; you can redistribute it and/or modify it * | ||
| 15 : | ; * under the terms of the GNU General Public License as published by * | ||
| 16 : | ; * the Free Software Foundation; either version 2 of the License, or * | ||
| 17 : | ; * (at your option) any later version. * | ||
| 18 : | ; * * | ||
| 19 : | ; * XviD is distributed in the hope that it will be useful, but * | ||
| 20 : | ; * WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
| 21 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | ||
| 22 : | ; * GNU General Public License for more details. * | ||
| 23 : | ; * * | ||
| 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 * | ||
| 26 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * | ||
| 27 : | ; * * | ||
| 28 : | ; ******************************************************************************/ | ||
| 29 : | ; | ||
| 30 : | ;/****************************************************************************** | ||
| 31 : | ; * * | ||
| 32 : | ; * cpuid.asm, check cpu features * | ||
| 33 : | ; * * | ||
| 34 : | ; * Copyright (C) 2001 - Michael Militzer <isibaar@xvid.org>, * | ||
| 35 : | ; * * | ||
| 36 : | ; * For more information visit the XviD homepage: http://www.xvid.org * | ||
| 37 : | ; * * | ||
| 38 : | ; ******************************************************************************/ | ||
| 39 : | ; | ||
| 40 : | ;/****************************************************************************** | ||
| 41 : | ; * * | ||
| 42 : | ; * Revision history: * | ||
| 43 : | ; * * | ||
| 44 : | ; * 17.12.2001 initial version (Isibaar) * | ||
| 45 : | ; * * | ||
| 46 : | ; ******************************************************************************/ | ||
| 47 : | |||
| 48 : | bits 32 | ||
| 49 : | |||
| 50 : | %define CPUID_TSC 0x00000010 | ||
| 51 : | %define CPUID_MMX 0x00800000 | ||
| 52 : | %define CPUID_SSE 0x02000000 | ||
| 53 : | %define CPUID_SSE2 0x04000000 | ||
| 54 : | |||
| 55 : | %define EXT_CPUID_3DNOW 0x80000000 | ||
| 56 : | %define EXT_CPUID_AMD_3DNOWEXT 0x40000000 | ||
| 57 : | %define EXT_CPUID_AMD_MMXEXT 0x00400000 | ||
| 58 : | |||
| 59 : | %define XVID_CPU_MMX 0x00000001 | ||
| 60 : | %define XVID_CPU_MMXEXT 0x00000002 | ||
| 61 : | %define XVID_CPU_SSE 0x00000004 | ||
| 62 : | %define XVID_CPU_SSE2 0x00000008 | ||
| 63 : | %define XVID_CPU_3DNOW 0x00000010 | ||
| 64 : | %define XVID_CPU_3DNOWEXT 0x00000020 | ||
| 65 : | %define XVID_CPU_TSC 0x00000040 | ||
| 66 : | |||
| 67 : | |||
| 68 : | %macro cglobal 1 | ||
| 69 : | %ifdef PREFIX | ||
| 70 : | global _%1 | ||
| 71 : | %define %1 _%1 | ||
| 72 : | %else | ||
| 73 : | global %1 | ||
| 74 : | %endif | ||
| 75 : | %endmacro | ||
| 76 : | |||
| 77 : | ALIGN 32 | ||
| 78 : | |||
| 79 : | section .data | ||
| 80 : | |||
| 81 : | features dd 0 | ||
| 82 : | |||
| 83 : | vendor dd 0,0,0 | ||
| 84 : | vendorAMD db "AuthenticAMD" | ||
| 85 : | |||
| 86 : | %macro CHECK_FEATURE 3 | ||
| 87 : | |||
| 88 : | mov ecx, %1 | ||
| 89 : | and ecx, edx | ||
| 90 : | neg ecx | ||
| 91 : | sbb ecx, ecx | ||
| 92 : | and ecx, %2 | ||
| 93 : | or [%3], ecx | ||
| 94 : | |||
| 95 : | %endmacro | ||
| 96 : | |||
| 97 : | section .text | ||
| 98 : | |||
| 99 : | ; int check_cpu_feature(void) | ||
| 100 : | |||
| 101 : | cglobal check_cpu_features | ||
| 102 : | check_cpu_features: | ||
| 103 : | |||
| 104 : | pushad | ||
| 105 : | pushfd | ||
| 106 : | |||
| 107 : | ; CPUID command ? | ||
| 108 : | pop eax | ||
| 109 : | mov ecx, eax | ||
| 110 : | xor eax, 0x200000 | ||
| 111 : | push eax | ||
| 112 : | popfd | ||
| 113 : | pushfd | ||
| 114 : | pop eax | ||
| 115 : | cmp eax, ecx | ||
| 116 : | |||
| 117 : | jz near .cpu_quit ; no CPUID command -> exit | ||
| 118 : | |||
| 119 : | |||
| 120 : | ; get vendor string, used later | ||
| 121 : | xor eax, eax | ||
| 122 : | cpuid | ||
| 123 : | mov [vendor], ebx ; vendor string | ||
| 124 : | mov [vendor+4], edx | ||
| 125 : | mov [vendor+8], ecx | ||
| 126 : | test eax, eax | ||
| 127 : | |||
| 128 : | jz near .cpu_quit | ||
| 129 : | |||
| 130 : | mov eax, 1 | ||
| 131 : | cpuid | ||
| 132 : | |||
| 133 : | |||
| 134 : | ; RDTSC command ? | ||
| 135 : | CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, features | ||
| 136 : | |||
| 137 : | ; MMX support ? | ||
| 138 : | CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, features | ||
| 139 : | |||
| 140 : | ; SSE support ? | ||
| 141 : | CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT+XVID_CPU_SSE), features | ||
| 142 : | |||
| 143 : | ; SSE2 support? | ||
| 144 : | CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, features | ||
| 145 : | |||
| 146 : | |||
| 147 : | ; extended functions? | ||
| 148 : | mov eax, 0x80000000 | ||
| 149 : | cpuid | ||
| 150 : | cmp eax, 0x80000000 | ||
| 151 : | jbe near .cpu_quit | ||
| 152 : | |||
| 153 : | mov eax, 0x80000001 | ||
| 154 : | cpuid | ||
| 155 : | |||
| 156 : | ; 3DNow! support ? | ||
| 157 : | CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, features | ||
| 158 : | |||
| 159 : | ; AMD cpu ? | ||
| 160 : | lea esi, [vendorAMD] | ||
| 161 : | lea edi, [vendor] | ||
| 162 : | mov ecx, 12 | ||
| 163 : | cld | ||
| 164 : | repe cmpsb | ||
| 165 : | jnz .cpu_quit | ||
| 166 : | |||
| 167 : | ; 3DNOW extended ? | ||
| 168 : | CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, features | ||
| 169 : | |||
| 170 : | ; extended MMX ? | ||
| 171 : | CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, features | ||
| 172 : | |||
| 173 : | .cpu_quit: | ||
| 174 : | |||
| 175 : | popad | ||
| 176 : | |||
| 177 : | mov eax, [features] | ||
| 178 : | |||
| 179 : | ret |
| No admin address has been configured | ViewVC Help |
| Powered by ViewVC 1.0.4 |