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1 : | edgomez | 1.5 | ;/**************************************************************************** |
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 : | ; * $Id$ | ||
23 : | ; * | ||
24 : | ; ***************************************************************************/ | ||
25 : | Isibaar | 1.1 | |
26 : | edgomez | 1.5 | BITS 32 |
27 : | Isibaar | 1.1 | |
28 : | suxen_drol | 1.2 | %macro cglobal 1 |
29 : | Isibaar | 1.1 | %ifdef PREFIX |
30 : | edgomez | 1.8 | %ifdef MARK_FUNCS |
31 : | global _%1:function | ||
32 : | %define %1 _%1:function | ||
33 : | %else | ||
34 : | global _%1 | ||
35 : | %define %1 _%1 | ||
36 : | %endif | ||
37 : | Isibaar | 1.1 | %else |
38 : | edgomez | 1.8 | %ifdef MARK_FUNCS |
39 : | global %1:function | ||
40 : | %else | ||
41 : | global %1 | ||
42 : | %endif | ||
43 : | Isibaar | 1.1 | %endif |
44 : | %endmacro | ||
45 : | |||
46 : | edgomez | 1.5 | ;============================================================================= |
47 : | ; Constants | ||
48 : | ;============================================================================= | ||
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 : | ;;; NB: Make sure these defines match the ones defined in xvid.h | ||
60 : | %define XVID_CPU_MMX (1<< 0) | ||
61 : | %define XVID_CPU_MMXEXT (1<< 1) | ||
62 : | %define XVID_CPU_SSE (1<< 2) | ||
63 : | %define XVID_CPU_SSE2 (1<< 3) | ||
64 : | %define XVID_CPU_3DNOW (1<< 4) | ||
65 : | %define XVID_CPU_3DNOWEXT (1<< 5) | ||
66 : | %define XVID_CPU_TSC (1<< 6) | ||
67 : | |||
68 : | ;============================================================================= | ||
69 : | ; Read only data | ||
70 : | ;============================================================================= | ||
71 : | |||
72 : | Isibaar | 1.1 | ALIGN 32 |
73 : | edgomez | 1.5 | %ifdef FORMAT_COFF |
74 : | edgomez | 1.7 | SECTION .rodata |
75 : | edgomez | 1.5 | %else |
76 : | edgomez | 1.7 | SECTION .rodata align=16 |
77 : | edgomez | 1.5 | %endif |
78 : | |||
79 : | vendorAMD: | ||
80 : | db "AuthenticAMD" | ||
81 : | |||
82 : | ;============================================================================= | ||
83 : | ; Macros | ||
84 : | ;============================================================================= | ||
85 : | Isibaar | 1.1 | |
86 : | %macro CHECK_FEATURE 3 | ||
87 : | edgomez | 1.5 | mov ecx, %1 |
88 : | and ecx, edx | ||
89 : | neg ecx | ||
90 : | sbb ecx, ecx | ||
91 : | and ecx, %2 | ||
92 : | or %3, ecx | ||
93 : | %endmacro | ||
94 : | Isibaar | 1.1 | |
95 : | edgomez | 1.5 | ;============================================================================= |
96 : | ; Code | ||
97 : | ;============================================================================= | ||
98 : | Isibaar | 1.1 | |
99 : | edgomez | 1.5 | SECTION .text |
100 : | Isibaar | 1.1 | |
101 : | ; int check_cpu_feature(void) | ||
102 : | |||
103 : | cglobal check_cpu_features | ||
104 : | check_cpu_features: | ||
105 : | suxen_drol | 1.2 | |
106 : | edgomez | 1.5 | push ebx |
107 : | push esi | ||
108 : | push edi | ||
109 : | push ebp | ||
110 : | suxen_drol | 1.2 | |
111 : | edgomez | 1.6 | sub esp, 12 ; Stack space for vendor name |
112 : | |||
113 : | edgomez | 1.5 | xor ebp, ebp |
114 : | Isibaar | 1.1 | |
115 : | ; CPUID command ? | ||
116 : | edgomez | 1.5 | pushfd |
117 : | pop eax | ||
118 : | mov ecx, eax | ||
119 : | xor eax, 0x200000 | ||
120 : | push eax | ||
121 : | popfd | ||
122 : | pushfd | ||
123 : | pop eax | ||
124 : | cmp eax, ecx | ||
125 : | Isibaar | 1.1 | |
126 : | edgomez | 1.5 | jz near .cpu_quit ; no CPUID command -> exit |
127 : | Isibaar | 1.1 | |
128 : | |||
129 : | ; get vendor string, used later | ||
130 : | edgomez | 1.5 | xor eax, eax |
131 : | cpuid | ||
132 : | edgomez | 1.6 | mov [esp], ebx ; vendor string |
133 : | mov [esp+4], edx | ||
134 : | mov [esp+8], ecx | ||
135 : | edgomez | 1.5 | test eax, eax |
136 : | |||
137 : | jz near .cpu_quit | ||
138 : | |||
139 : | mov eax, 1 | ||
140 : | cpuid | ||
141 : | |||
142 : | ; RDTSC command ? | ||
143 : | CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, ebp | ||
144 : | |||
145 : | ; MMX support ? | ||
146 : | CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, ebp | ||
147 : | |||
148 : | ; SSE support ? | ||
149 : | CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT|XVID_CPU_SSE), ebp | ||
150 : | |||
151 : | ; SSE2 support? | ||
152 : | CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, ebp | ||
153 : | |||
154 : | ; extended functions? | ||
155 : | mov eax, 0x80000000 | ||
156 : | cpuid | ||
157 : | cmp eax, 0x80000000 | ||
158 : | jbe near .cpu_quit | ||
159 : | |||
160 : | mov eax, 0x80000001 | ||
161 : | cpuid | ||
162 : | |||
163 : | ; AMD cpu ? | ||
164 : | lea esi, [vendorAMD] | ||
165 : | edgomez | 1.6 | lea edi, [esp] |
166 : | edgomez | 1.5 | mov ecx, 12 |
167 : | cld | ||
168 : | repe cmpsb | ||
169 : | jnz .cpu_quit | ||
170 : | Isibaar | 1.1 | |
171 : | edgomez | 1.5 | ; 3DNow! support ? |
172 : | CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, ebp | ||
173 : | suxen_drol | 1.2 | |
174 : | edgomez | 1.5 | ; 3DNOW extended ? |
175 : | CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, ebp | ||
176 : | Isibaar | 1.1 | |
177 : | edgomez | 1.5 | ; extended MMX ? |
178 : | CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, ebp | ||
179 : | suxen_drol | 1.2 | |
180 : | .cpu_quit: | ||
181 : | |||
182 : | edgomez | 1.5 | mov eax, ebp |
183 : | suxen_drol | 1.2 | |
184 : | edgomez | 1.6 | add esp, 12 |
185 : | |||
186 : | edgomez | 1.5 | pop ebp |
187 : | pop edi | ||
188 : | pop esi | ||
189 : | pop ebx | ||
190 : | suxen_drol | 1.2 | |
191 : | edgomez | 1.5 | ret |
192 : | suxen_drol | 1.2 | |
193 : | ; sse/sse2 operating support detection routines | ||
194 : | ; these will trigger an invalid instruction signal if not supported. | ||
195 : | edgomez | 1.5 | ALIGN 16 |
196 : | suxen_drol | 1.2 | cglobal sse_os_trigger |
197 : | sse_os_trigger: | ||
198 : | edgomez | 1.5 | xorps xmm0, xmm0 |
199 : | ret | ||
200 : | suxen_drol | 1.2 | |
201 : | |||
202 : | edgomez | 1.5 | ALIGN 16 |
203 : | suxen_drol | 1.2 | cglobal sse2_os_trigger |
204 : | sse2_os_trigger: | ||
205 : | edgomez | 1.5 | xorpd xmm0, xmm0 |
206 : | ret | ||
207 : | suxen_drol | 1.2 | |
208 : | edgomez | 1.4 | |
209 : | ; enter/exit mmx state | ||
210 : | edgomez | 1.5 | ALIGN 16 |
211 : | edgomez | 1.4 | cglobal emms_mmx |
212 : | emms_mmx: | ||
213 : | edgomez | 1.5 | emms |
214 : | ret | ||
215 : | edgomez | 1.4 | |
216 : | ; faster enter/exit mmx state | ||
217 : | edgomez | 1.5 | ALIGN 16 |
218 : | edgomez | 1.4 | cglobal emms_3dn |
219 : | emms_3dn: | ||
220 : | edgomez | 1.5 | femms |
221 : | ret |
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