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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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