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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 : | Isibaar | 1.10 | ; * $Id: cpuid.asm,v 1.9 2004/08/29 10:02:38 edgomez Exp $ |
23 : | edgomez | 1.5 | ; * |
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 : | edgomez | 1.9 | global _%1:function %1.endfunc-%1 |
32 : | %define %1 _%1:function %1.endfunc-%1 | ||
33 : | edgomez | 1.8 | %else |
34 : | global _%1 | ||
35 : | %define %1 _%1 | ||
36 : | %endif | ||
37 : | Isibaar | 1.1 | %else |
38 : | edgomez | 1.8 | %ifdef MARK_FUNCS |
39 : | edgomez | 1.9 | global %1:function %1.endfunc-%1 |
40 : | edgomez | 1.8 | %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 : | Isibaar | 1.10 | %define CPUID_SSE3 0x00000001 |
55 : | edgomez | 1.5 | |
56 : | %define EXT_CPUID_3DNOW 0x80000000 | ||
57 : | %define EXT_CPUID_AMD_3DNOWEXT 0x40000000 | ||
58 : | %define EXT_CPUID_AMD_MMXEXT 0x00400000 | ||
59 : | |||
60 : | ;;; NB: Make sure these defines match the ones defined in xvid.h | ||
61 : | %define XVID_CPU_MMX (1<< 0) | ||
62 : | %define XVID_CPU_MMXEXT (1<< 1) | ||
63 : | %define XVID_CPU_SSE (1<< 2) | ||
64 : | %define XVID_CPU_SSE2 (1<< 3) | ||
65 : | Isibaar | 1.10 | %define XVID_CPU_SSE3 (1<< 8) |
66 : | edgomez | 1.5 | %define XVID_CPU_3DNOW (1<< 4) |
67 : | %define XVID_CPU_3DNOWEXT (1<< 5) | ||
68 : | %define XVID_CPU_TSC (1<< 6) | ||
69 : | |||
70 : | ;============================================================================= | ||
71 : | ; Read only data | ||
72 : | ;============================================================================= | ||
73 : | |||
74 : | Isibaar | 1.1 | ALIGN 32 |
75 : | edgomez | 1.5 | %ifdef FORMAT_COFF |
76 : | edgomez | 1.7 | SECTION .rodata |
77 : | edgomez | 1.5 | %else |
78 : | edgomez | 1.7 | SECTION .rodata align=16 |
79 : | edgomez | 1.5 | %endif |
80 : | |||
81 : | vendorAMD: | ||
82 : | db "AuthenticAMD" | ||
83 : | |||
84 : | ;============================================================================= | ||
85 : | ; Macros | ||
86 : | ;============================================================================= | ||
87 : | Isibaar | 1.1 | |
88 : | %macro CHECK_FEATURE 3 | ||
89 : | edgomez | 1.5 | mov ecx, %1 |
90 : | and ecx, edx | ||
91 : | neg ecx | ||
92 : | sbb ecx, ecx | ||
93 : | and ecx, %2 | ||
94 : | or %3, ecx | ||
95 : | %endmacro | ||
96 : | Isibaar | 1.1 | |
97 : | edgomez | 1.5 | ;============================================================================= |
98 : | ; Code | ||
99 : | ;============================================================================= | ||
100 : | Isibaar | 1.1 | |
101 : | edgomez | 1.5 | SECTION .text |
102 : | Isibaar | 1.1 | |
103 : | ; int check_cpu_feature(void) | ||
104 : | |||
105 : | cglobal check_cpu_features | ||
106 : | check_cpu_features: | ||
107 : | suxen_drol | 1.2 | |
108 : | edgomez | 1.5 | push ebx |
109 : | push esi | ||
110 : | push edi | ||
111 : | push ebp | ||
112 : | suxen_drol | 1.2 | |
113 : | edgomez | 1.6 | sub esp, 12 ; Stack space for vendor name |
114 : | |||
115 : | edgomez | 1.5 | xor ebp, ebp |
116 : | Isibaar | 1.1 | |
117 : | ; CPUID command ? | ||
118 : | edgomez | 1.5 | pushfd |
119 : | pop eax | ||
120 : | mov ecx, eax | ||
121 : | xor eax, 0x200000 | ||
122 : | push eax | ||
123 : | popfd | ||
124 : | pushfd | ||
125 : | pop eax | ||
126 : | cmp eax, ecx | ||
127 : | Isibaar | 1.1 | |
128 : | edgomez | 1.5 | jz near .cpu_quit ; no CPUID command -> exit |
129 : | Isibaar | 1.1 | |
130 : | |||
131 : | ; get vendor string, used later | ||
132 : | edgomez | 1.5 | xor eax, eax |
133 : | cpuid | ||
134 : | edgomez | 1.6 | mov [esp], ebx ; vendor string |
135 : | mov [esp+4], edx | ||
136 : | mov [esp+8], ecx | ||
137 : | edgomez | 1.5 | test eax, eax |
138 : | |||
139 : | jz near .cpu_quit | ||
140 : | |||
141 : | mov eax, 1 | ||
142 : | cpuid | ||
143 : | |||
144 : | ; RDTSC command ? | ||
145 : | CHECK_FEATURE CPUID_TSC, XVID_CPU_TSC, ebp | ||
146 : | |||
147 : | ; MMX support ? | ||
148 : | CHECK_FEATURE CPUID_MMX, XVID_CPU_MMX, ebp | ||
149 : | |||
150 : | ; SSE support ? | ||
151 : | CHECK_FEATURE CPUID_SSE, (XVID_CPU_MMXEXT|XVID_CPU_SSE), ebp | ||
152 : | |||
153 : | ; SSE2 support? | ||
154 : | CHECK_FEATURE CPUID_SSE2, XVID_CPU_SSE2, ebp | ||
155 : | |||
156 : | Isibaar | 1.10 | ; SSE3 support? |
157 : | CHECK_FEATURE CPUID_SSE3, XVID_CPU_SSE3, ebp | ||
158 : | |||
159 : | edgomez | 1.5 | ; extended functions? |
160 : | mov eax, 0x80000000 | ||
161 : | cpuid | ||
162 : | cmp eax, 0x80000000 | ||
163 : | jbe near .cpu_quit | ||
164 : | |||
165 : | mov eax, 0x80000001 | ||
166 : | cpuid | ||
167 : | |||
168 : | ; AMD cpu ? | ||
169 : | lea esi, [vendorAMD] | ||
170 : | edgomez | 1.6 | lea edi, [esp] |
171 : | edgomez | 1.5 | mov ecx, 12 |
172 : | cld | ||
173 : | repe cmpsb | ||
174 : | jnz .cpu_quit | ||
175 : | Isibaar | 1.1 | |
176 : | edgomez | 1.5 | ; 3DNow! support ? |
177 : | CHECK_FEATURE EXT_CPUID_3DNOW, XVID_CPU_3DNOW, ebp | ||
178 : | suxen_drol | 1.2 | |
179 : | edgomez | 1.5 | ; 3DNOW extended ? |
180 : | CHECK_FEATURE EXT_CPUID_AMD_3DNOWEXT, XVID_CPU_3DNOWEXT, ebp | ||
181 : | Isibaar | 1.1 | |
182 : | edgomez | 1.5 | ; extended MMX ? |
183 : | CHECK_FEATURE EXT_CPUID_AMD_MMXEXT, XVID_CPU_MMXEXT, ebp | ||
184 : | suxen_drol | 1.2 | |
185 : | .cpu_quit: | ||
186 : | |||
187 : | edgomez | 1.5 | mov eax, ebp |
188 : | suxen_drol | 1.2 | |
189 : | edgomez | 1.6 | add esp, 12 |
190 : | |||
191 : | edgomez | 1.5 | pop ebp |
192 : | pop edi | ||
193 : | pop esi | ||
194 : | pop ebx | ||
195 : | suxen_drol | 1.2 | |
196 : | edgomez | 1.5 | ret |
197 : | edgomez | 1.9 | .endfunc |
198 : | suxen_drol | 1.2 | |
199 : | ; sse/sse2 operating support detection routines | ||
200 : | ; these will trigger an invalid instruction signal if not supported. | ||
201 : | edgomez | 1.5 | ALIGN 16 |
202 : | suxen_drol | 1.2 | cglobal sse_os_trigger |
203 : | sse_os_trigger: | ||
204 : | edgomez | 1.5 | xorps xmm0, xmm0 |
205 : | ret | ||
206 : | edgomez | 1.9 | .endfunc |
207 : | suxen_drol | 1.2 | |
208 : | |||
209 : | edgomez | 1.5 | ALIGN 16 |
210 : | suxen_drol | 1.2 | cglobal sse2_os_trigger |
211 : | sse2_os_trigger: | ||
212 : | edgomez | 1.5 | xorpd xmm0, xmm0 |
213 : | ret | ||
214 : | edgomez | 1.9 | .endfunc |
215 : | suxen_drol | 1.2 | |
216 : | edgomez | 1.4 | |
217 : | ; enter/exit mmx state | ||
218 : | edgomez | 1.5 | ALIGN 16 |
219 : | edgomez | 1.4 | cglobal emms_mmx |
220 : | emms_mmx: | ||
221 : | edgomez | 1.5 | emms |
222 : | ret | ||
223 : | edgomez | 1.9 | .endfunc |
224 : | edgomez | 1.4 | |
225 : | ; faster enter/exit mmx state | ||
226 : | edgomez | 1.5 | ALIGN 16 |
227 : | edgomez | 1.4 | cglobal emms_3dn |
228 : | emms_3dn: | ||
229 : | edgomez | 1.5 | femms |
230 : | ret | ||
231 : | edgomez | 1.9 | .endfunc |
232 : | |||
233 : |
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