Mercurial > sdl-ios-xcode

comparison src/cpuinfo/SDL_cpuinfo.c @ 3515:d94e331e85fa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Missing pop over a jump
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Dec 2009 04:33:05 +0000
parents 4cf8a1423d57
children 3427271a2d75
comparison
equal deleted inserted replaced
3514:f0b7bc1fe12d 3515:d94e331e85fa
154 #if defined(__GNUC__) && defined(i386) 154 #if defined(__GNUC__) && defined(i386)
155 __asm__ ( 155 __asm__ (
156 " xorl %%eax,%%eax # Set up for CPUID instruction \n" 156 " xorl %%eax,%%eax # Set up for CPUID instruction \n"
157 " pushl %%ebx \n" 157 " pushl %%ebx \n"
158 " cpuid # Get and save vendor ID \n" 158 " cpuid # Get and save vendor ID \n"
159 " popl %%ebx \n"
159 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" 160 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n"
160 " jl 1f # We dont have the CPUID instruction\n" 161 " jl 1f # We dont have the CPUID instruction\n"
161 " xorl %%eax,%%eax \n" 162 " xorl %%eax,%%eax \n"
162 " incl %%eax \n" 163 " incl %%eax \n"
164 " pushl %%ebx \n"
163 " cpuid # Get family/model/stepping/features\n" 165 " cpuid # Get family/model/stepping/features\n"
164 " popl %%ebx \n" 166 " popl %%ebx \n"
165 " movl %%edx,%0 \n" 167 " movl %%edx,%0 \n"
166 "1: \n" 168 "1: \n"
167 : "=m" (features) 169 : "=m" (features)
169 : "%eax", "%ecx", "%edx" 171 : "%eax", "%ecx", "%edx"
170 ); 172 );
171 #elif defined(__GNUC__) && defined(__x86_64__) 173 #elif defined(__GNUC__) && defined(__x86_64__)
172 __asm__ ( 174 __asm__ (
173 " xorl %%eax,%%eax # Set up for CPUID instruction \n" 175 " xorl %%eax,%%eax # Set up for CPUID instruction \n"
174 " pushq %%rbx\n" 176 " pushq %%rbx \n"
175 " cpuid # Get and save vendor ID \n" 177 " cpuid # Get and save vendor ID \n"
178 " popq %%rbx \n"
176 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" 179 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n"
177 " jl 1f # We dont have the CPUID instruction\n" 180 " jl 1f # We dont have the CPUID instruction\n"
178 " xorl %%eax,%%eax \n" 181 " xorl %%eax,%%eax \n"
179 " incl %%eax \n" 182 " incl %%eax \n"
183 " pushq %%rbx \n"
180 " cpuid # Get family/model/stepping/features\n" 184 " cpuid # Get family/model/stepping/features\n"
181 " popq %%rbx\n" 185 " popq %%rbx \n"
182 " movl %%edx,%0 \n" 186 " movl %%edx,%0 \n"
183 "1: \n" 187 "1: \n"
184 : "=m" (features) 188 : "=m" (features)
185 : 189 :
186 : "%rax", "%rcx", "%rdx" 190 : "%rax", "%rcx", "%rdx"
188 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) 192 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
189 __asm { 193 __asm {
190 xor eax, eax ; Set up for CPUID instruction 194 xor eax, eax ; Set up for CPUID instruction
191 push ebx 195 push ebx
192 cpuid ; Get and save vendor ID 196 cpuid ; Get and save vendor ID
197 pop ebx
193 cmp eax, 1 ; Make sure 1 is valid input for CPUID 198 cmp eax, 1 ; Make sure 1 is valid input for CPUID
194 jl done ; We dont have the CPUID instruction 199 jl done ; We dont have the CPUID instruction
195 xor eax, eax 200 xor eax, eax
196 inc eax 201 inc eax
202 push ebx
197 cpuid ; Get family/model/stepping/features 203 cpuid ; Get family/model/stepping/features
198 pop ebx 204 pop ebx
199 mov features, edx 205 mov features, edx
200 done: 206 done:
201 } 207 }
202 #elif defined(__sun) && (defined(__i386) || defined(__amd64)) 208 #elif defined(__sun) && (defined(__i386) || defined(__amd64))
203 __asm( 209 __asm(
204 " xorl %eax,%eax \n" 210 " xorl %eax,%eax \n"
205 " pushl %ebx \n" 211 " pushl %ebx \n"
206 " cpuid \n" 212 " cpuid \n"
213 " popl %ebx \n"
207 " cmpl $1,%eax \n" 214 " cmpl $1,%eax \n"
208 " jl 1f \n" 215 " jl 1f \n"
209 " xorl %eax,%eax \n" 216 " xorl %eax,%eax \n"
210 " incl %eax \n" 217 " incl %eax \n"
218 " pushl %ebx \n"
211 " cpuid \n" 219 " cpuid \n"
212 " popl %ebx \n" 220 " popl %ebx \n"
213 #ifdef __i386 221 #ifdef __i386
214 " movl %edx,-8(%ebp) \n" 222 " movl %edx,-8(%ebp) \n"
215 #else 223 #else
229 #if defined(__GNUC__) && defined(i386) 237 #if defined(__GNUC__) && defined(i386)
230 __asm__ ( 238 __asm__ (
231 " movl $0x80000000,%%eax # Query for extended functions \n" 239 " movl $0x80000000,%%eax # Query for extended functions \n"
232 " pushl %%ebx \n" 240 " pushl %%ebx \n"
233 " cpuid # Get extended function limit \n" 241 " cpuid # Get extended function limit \n"
242 " popl %%ebx \n"
234 " cmpl $0x80000001,%%eax \n" 243 " cmpl $0x80000001,%%eax \n"
235 " jl 1f # Nope, we dont have function 800000001h\n" 244 " jl 1f # Nope, we dont have function 800000001h\n"
236 " movl $0x80000001,%%eax # Setup extended function 800000001h\n" 245 " movl $0x80000001,%%eax # Setup extended function 800000001h\n"
246 " pushl %%ebx \n"
237 " cpuid # and get the information \n" 247 " cpuid # and get the information \n"
238 " popl %%ebx \n" 248 " popl %%ebx \n"
239 " movl %%edx,%0 \n" 249 " movl %%edx,%0 \n"
240 "1: \n" 250 "1: \n"
241 : "=m" (features) 251 : "=m" (features)
245 #elif defined(__GNUC__) && defined (__x86_64__) 255 #elif defined(__GNUC__) && defined (__x86_64__)
246 __asm__ ( 256 __asm__ (
247 " movl $0x80000000,%%eax # Query for extended functions \n" 257 " movl $0x80000000,%%eax # Query for extended functions \n"
248 " pushq %%rbx \n" 258 " pushq %%rbx \n"
249 " cpuid # Get extended function limit \n" 259 " cpuid # Get extended function limit \n"
260 " popq %%rbx \n"
250 " cmpl $0x80000001,%%eax \n" 261 " cmpl $0x80000001,%%eax \n"
251 " jl 1f # Nope, we dont have function 800000001h\n" 262 " jl 1f # Nope, we dont have function 800000001h\n"
252 " movl $0x80000001,%%eax # Setup extended function 800000001h\n" 263 " movl $0x80000001,%%eax # Setup extended function 800000001h\n"
264 " pushq %%rbx \n"
253 " cpuid # and get the information \n" 265 " cpuid # and get the information \n"
254 " popq %%rbx \n" 266 " popq %%rbx \n"
255 " movl %%edx,%0 \n" 267 " movl %%edx,%0 \n"
256 "1: \n" 268 "1: \n"
257 : "=m" (features) 269 : "=m" (features)
261 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) 273 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
262 __asm { 274 __asm {
263 mov eax,80000000h ; Query for extended functions 275 mov eax,80000000h ; Query for extended functions
264 push ebx 276 push ebx
265 cpuid ; Get extended function limit 277 cpuid ; Get extended function limit
278 pop ebx
266 cmp eax,80000001h 279 cmp eax,80000001h
267 jl done ; Nope, we dont have function 800000001h 280 jl done ; Nope, we dont have function 800000001h
268 mov eax,80000001h ; Setup extended function 800000001h 281 mov eax,80000001h ; Setup extended function 800000001h
282 push ebx
269 cpuid ; and get the information 283 cpuid ; and get the information
270 pop ebx 284 pop ebx
271 mov features,edx 285 mov features,edx
272 done: 286 done:
273 } 287 }
274 #elif defined(__sun) && ( defined(__i386) || defined(__amd64) ) 288 #elif defined(__sun) && ( defined(__i386) || defined(__amd64) )
275 __asm ( 289 __asm (
276 " movl $0x80000000,%eax \n" 290 " movl $0x80000000,%eax \n"
277 " pushl %ebx \n" 291 " pushl %ebx \n"
278 " cpuid \n" 292 " cpuid \n"
293 " popl %ebx \n"
279 " cmpl $0x80000001,%eax \n" 294 " cmpl $0x80000001,%eax \n"
280 " jl 1f \n" 295 " jl 1f \n"
281 " movl $0x80000001,%eax \n" 296 " movl $0x80000001,%eax \n"
297 " pushl %ebx \n"
282 " cpuid \n" 298 " cpuid \n"
283 " popl %ebx \n" 299 " popl %ebx \n"
284 #ifdef __i386 300 #ifdef __i386
285 " movl %edx,-8(%ebp) \n" 301 " movl %edx,-8(%ebp) \n"
286 #else 302 #else