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| 1 : | edgomez | 1192 | ;/**************************************************************************** |
| 2 : | ; * | ||
| 3 : | ; * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | ; * - CPUID check processors capabilities - | ||
| 5 : | ; * | ||
| 6 : | ; * Copyright (C) 2001 Michael Militzer <isibaar@xvid.org> | ||
| 7 : | ; * | ||
| 8 : | ; * This program is free software ; you can redistribute it and/or modify | ||
| 9 : | ; * it under the terms of the GNU General Public License as published by | ||
| 10 : | ; * the Free Software Foundation ; either version 2 of the License, or | ||
| 11 : | ; * (at your option) any later version. | ||
| 12 : | ; * | ||
| 13 : | ; * This program is distributed in the hope that it will be useful, | ||
| 14 : | ; * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
| 15 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | ; * GNU General Public License for more details. | ||
| 17 : | ; * | ||
| 18 : | ; * You should have received a copy of the GNU General Public License | ||
| 19 : | ; * along with this program ; if not, write to the Free Software | ||
| 20 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | ; * | ||
| 22 : | ; * $Id: cpuid.asm,v 1.4.2.2 2003-10-28 22:23:03 edgomez Exp $ | ||
| 23 : | ; * | ||
| 24 : | ; ***************************************************************************/ | ||
| 25 : | Isibaar | 3 | |
| 26 : | edgomez | 1192 | BITS 32 |
| 27 : | Isibaar | 3 | |
| 28 : | edgomez | 1192 | %macro cglobal 1 |
| 29 : | %ifdef PREFIX | ||
| 30 : | global _%1 | ||
| 31 : | %define %1 _%1 | ||
| 32 : | %else | ||
| 33 : | global %1 | ||
| 34 : | %endif | ||
| 35 : | %endmacro | ||
| 36 : | Isibaar | 3 | |
| 37 : | edgomez | 1192 | ;============================================================================= |
| 38 : | ; Constants | ||
| 39 : | ;============================================================================= | ||
| 40 : | Isibaar | 3 | |
| 41 : | edgomez | 1192 | %define CPUID_TSC 0x00000010 |
| 42 : | %define CPUID_MMX 0x00800000 | ||
| 43 : | %define CPUID_SSE 0x02000000 | ||
| 44 : | %define CPUID_SSE2 0x04000000 | ||
| 45 : | |||
| 46 : | %define EXT_CPUID_3DNOW 0x80000000 | ||
| 47 : | %define EXT_CPUID_AMD_3DNOWEXT 0x40000000 | ||
| 48 : | %define EXT_CPUID_AMD_MMXEXT 0x00400000 | ||
| 49 : | |||
| 50 : | ;;; NB: Make sure these defines match the ones defined in xvid.h | ||
| 51 : | edgomez | 1176 | %define XVID_CPU_MMX (1<< 0) |
| 52 : | %define XVID_CPU_MMXEXT (1<< 1) | ||
| 53 : | %define XVID_CPU_SSE (1<< 2) | ||
| 54 : | %define XVID_CPU_SSE2 (1<< 3) | ||
| 55 : | %define XVID_CPU_3DNOW (1<< 4) | ||
| 56 : | %define XVID_CPU_3DNOWEXT (1<< 5) | ||
| 57 : | %define XVID_CPU_TSC (1<< 6) | ||
| 58 : | Isibaar | 3 | |
| 59 : | edgomez | 1192 | ;============================================================================= |
| 60 : | ; Read only data | ||
| 61 : | ;============================================================================= | ||
| 62 : | Isibaar | 3 | |
| 63 : | ALIGN 32 | ||
| 64 : | edgomez | 1192 | SECTION .rodata |
| 65 : | Isibaar | 3 | |
| 66 : | edgomez | 1192 | vendorAMD: |
| 67 : | db "AuthenticAMD" | ||
| 68 : | Isibaar | 3 | |
| 69 : | edgomez | 1192 | ;============================================================================= |
| 70 : | ; Macros | ||
| 71 : | ;============================================================================= | ||
| 72 : | Isibaar | 3 | |
| 73 : | %macro CHECK_FEATURE 3 | ||
| 74 : | edgomez | 1192 | mov ecx, %1 |
| 75 : | and ecx, edx | ||
| 76 : | neg ecx | ||
| 77 : | sbb ecx, ecx | ||
| 78 : | and ecx, %2 | ||
| 79 : | or %3, ecx | ||
| 80 : | Isibaar | 3 | %endmacro |
| 81 : | |||
| 82 : | edgomez | 1192 | ;============================================================================= |
| 83 : | ; Code | ||
| 84 : | ;============================================================================= | ||
| 85 : | Isibaar | 3 | |
| 86 : | edgomez | 1192 | SECTION .text |
| 87 : | |||
| 88 : | Isibaar | 3 | ; int check_cpu_feature(void) |
| 89 : | |||
| 90 : | cglobal check_cpu_features | ||
| 91 : | check_cpu_features: | ||
| 92 : | |||
| 93 : | edgomez | 1192 | push ebx |
| 94 : | push esi | ||
| 95 : | push edi | ||
| 96 : | push ebp | ||
| 97 : | suxen_drol | 309 | |
| 98 : | edgomez | 1192 | xor ebp, ebp |
| 99 : | suxen_drol | 309 | |
| 100 : | Isibaar | 3 | ; CPUID command ? |
| 101 : | edgomez | 1192 | pushfd |
| 102 : | pop eax | ||
| 103 : | mov ecx, eax | ||
| 104 : | xor eax, 0x200000 | ||
| 105 : | push eax | ||
| 106 : | popfd | ||
| 107 : | pushfd | ||
| 108 : | pop eax | ||
| 109 : | cmp eax, ecx | ||
| 110 : | Isibaar | 3 | |
| 111 : | edgomez | 1192 | jz near .cpu_quit ; no CPUID command -> exit |
| 112 : | Isibaar | 3 | |
| 113 : | |||
| 114 : | ; get vendor string, used later | ||
| 115 : | edgomez | 1192 | xor eax, eax |
| 116 : | cpuid | ||
| 117 : | mov [esp-12], ebx ; vendor string | ||
| 118 : | mov [esp-12+4], edx | ||
| 119 : | mov [esp-12+8], ecx | ||
| 120 : | test eax, eax | ||
| 121 : | Isibaar | 3 | |
| 122 : | edgomez | 1192 | jz near .cpu_quit |
| 123 : | Isibaar | 3 | |
| 124 : | edgomez | 1192 | mov eax, 1 |
| 125 : | cpuid | ||
| 126 : | Isibaar | 3 | |
| 127 : | edgomez | 1192 | ; RDTSC command ? |
| 128 : | CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, ebp | ||
| 129 : | Isibaar | 3 | |
| 130 : | edgomez | 1192 | ; MMX support ? |
| 131 : | CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, ebp | ||
| 132 : | Isibaar | 3 | |
| 133 : | edgomez | 1192 | ; SSE support ? |
| 134 : | CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT|XVID_CPU_SSE), ebp | ||
| 135 : | Isibaar | 3 | |
| 136 : | edgomez | 1192 | ; SSE2 support? |
| 137 : | CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, ebp | ||
| 138 : | Isibaar | 3 | |
| 139 : | edgomez | 1192 | ; extended functions? |
| 140 : | mov eax, 0x80000000 | ||
| 141 : | cpuid | ||
| 142 : | cmp eax, 0x80000000 | ||
| 143 : | jbe near .cpu_quit | ||
| 144 : | Isibaar | 3 | |
| 145 : | edgomez | 1192 | mov eax, 0x80000001 |
| 146 : | cpuid | ||
| 147 : | Isibaar | 3 | |
| 148 : | edgomez | 1192 | ; AMD cpu ? |
| 149 : | lea esi, [vendorAMD] | ||
| 150 : | lea edi, [esp-12] | ||
| 151 : | mov ecx, 12 | ||
| 152 : | cld | ||
| 153 : | repe cmpsb | ||
| 154 : | jnz .cpu_quit | ||
| 155 : | Isibaar | 3 | |
| 156 : | edgomez | 1192 | ; 3DNow! support ? |
| 157 : | CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, ebp | ||
| 158 : | suxen_drol | 309 | |
| 159 : | edgomez | 1192 | ; 3DNOW extended ? |
| 160 : | CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, ebp | ||
| 161 : | Isibaar | 3 | |
| 162 : | edgomez | 1192 | ; extended MMX ? |
| 163 : | CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, ebp | ||
| 164 : | Isibaar | 3 | |
| 165 : | suxen_drol | 309 | .cpu_quit: |
| 166 : | |||
| 167 : | edgomez | 1192 | mov eax, ebp |
| 168 : | suxen_drol | 309 | |
| 169 : | edgomez | 1192 | pop ebp |
| 170 : | pop edi | ||
| 171 : | pop esi | ||
| 172 : | pop ebx | ||
| 173 : | suxen_drol | 309 | |
| 174 : | edgomez | 1192 | ret |
| 175 : | suxen_drol | 309 | |
| 176 : | ; sse/sse2 operating support detection routines | ||
| 177 : | ; these will trigger an invalid instruction signal if not supported. | ||
| 178 : | edgomez | 1192 | ALIGN 16 |
| 179 : | suxen_drol | 309 | cglobal sse_os_trigger |
| 180 : | sse_os_trigger: | ||
| 181 : | edgomez | 1192 | xorps xmm0, xmm0 |
| 182 : | ret | ||
| 183 : | suxen_drol | 309 | |
| 184 : | |||
| 185 : | edgomez | 1192 | ALIGN 16 |
| 186 : | suxen_drol | 309 | cglobal sse2_os_trigger |
| 187 : | sse2_os_trigger: | ||
| 188 : | edgomez | 1192 | xorpd xmm0, xmm0 |
| 189 : | ret | ||
| 190 : | suxen_drol | 309 | |
| 191 : | edgomez | 851 | |
| 192 : | ; enter/exit mmx state | ||
| 193 : | edgomez | 1192 | ALIGN 16 |
| 194 : | edgomez | 851 | cglobal emms_mmx |
| 195 : | emms_mmx: | ||
| 196 : | edgomez | 1192 | emms |
| 197 : | ret | ||
| 198 : | edgomez | 851 | |
| 199 : | ; faster enter/exit mmx state | ||
| 200 : | edgomez | 1192 | ALIGN 16 |
| 201 : | edgomez | 851 | cglobal emms_3dn |
| 202 : | emms_3dn: | ||
| 203 : | edgomez | 1192 | femms |
| 204 : | ret |
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