Mercurial > sdl-ios-xcode
diff src/cpuinfo/SDL_cpuinfo.c @ 1668:4da1ee79c9af SDL-1.3
more tweaking indent options
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 29 May 2006 04:04:35 +0000 |
| parents | 782fd950bd46 |
| children | c901fd2a42da |
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--- a/src/cpuinfo/SDL_cpuinfo.c Mon May 29 03:53:21 2006 +0000 +++ b/src/cpuinfo/SDL_cpuinfo.c Mon May 29 04:04:35 2006 +0000 @@ -48,23 +48,23 @@ */ static jmp_buf jmpbuf; static void -illegal_instruction (int sig) +illegal_instruction(int sig) { - longjmp (jmpbuf, 1); + longjmp(jmpbuf, 1); } #endif /* HAVE_SETJMP */ static __inline__ int -CPU_haveCPUID (void) +CPU_haveCPUID(void) { int has_CPUID = 0; #if defined(__GNUC__) && defined(i386) - __asm__ (" pushfl # Get original EFLAGS \n" " popl %%eax \n" " movl %%eax,%%ecx \n" " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" " pushl %%eax # Save new EFLAGS value on stack \n" " popfl # Replace current EFLAGS value \n" " pushfl # Get new EFLAGS \n" " popl %%eax # Store new EFLAGS in EAX \n" " xorl %%ecx,%%eax # Can not toggle ID bit, \n" " jz 1f # Processor=80486 \n" " movl $1,%0 # We have CPUID support \n" "1: \n": "=m" (has_CPUID): + __asm__(" pushfl # Get original EFLAGS \n" " popl %%eax \n" " movl %%eax,%%ecx \n" " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" " pushl %%eax # Save new EFLAGS value on stack \n" " popfl # Replace current EFLAGS value \n" " pushfl # Get new EFLAGS \n" " popl %%eax # Store new EFLAGS in EAX \n" " xorl %%ecx,%%eax # Can not toggle ID bit, \n" " jz 1f # Processor=80486 \n" " movl $1,%0 # We have CPUID support \n" "1: \n": "=m"(has_CPUID): :"%eax", "%ecx"); #elif defined(__GNUC__) && defined(__x86_64__) /* Technically, if this is being compiled under __x86_64__ then it has CPUid by definition. But it's nice to be able to prove it. :) */ - __asm__ (" pushfq # Get original EFLAGS \n" " popq %%rax \n" " movq %%rax,%%rcx \n" " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" " pushq %%rax # Save new EFLAGS value on stack \n" " popfq # Replace current EFLAGS value \n" " pushfq # Get new EFLAGS \n" " popq %%rax # Store new EFLAGS in EAX \n" " xorl %%ecx,%%eax # Can not toggle ID bit, \n" " jz 1f # Processor=80486 \n" " movl $1,%0 # We have CPUID support \n" "1: \n": "=m" (has_CPUID): + __asm__(" pushfq # Get original EFLAGS \n" " popq %%rax \n" " movq %%rax,%%rcx \n" " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" " pushq %%rax # Save new EFLAGS value on stack \n" " popfq # Replace current EFLAGS value \n" " pushfq # Get new EFLAGS \n" " popq %%rax # Store new EFLAGS in EAX \n" " xorl %%ecx,%%eax # Can not toggle ID bit, \n" " jz 1f # Processor=80486 \n" " movl $1,%0 # We have CPUID support \n" "1: \n": "=m"(has_CPUID): :"%rax", "%rcx"); #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) __asm { @@ -79,41 +79,41 @@ Processor = 80486 mov has_CPUID, 1; We have CPUID support done:} #elif defined(__sun) && defined(__x86) - __asm (" pushfl \n" - " popl %eax \n" - " movl %eax,%ecx \n" - " xorl $0x200000,%eax \n" - " pushl %eax \n" - " popfl \n" - " pushfl \n" - " popl %eax \n" - " xorl %ecx,%eax \n" - " jz 1f \n" - " movl $1,-8(%ebp) \n" - "1: \n"); + __asm(" pushfl \n" + " popl %eax \n" + " movl %eax,%ecx \n" + " xorl $0x200000,%eax \n" + " pushl %eax \n" + " popfl \n" + " pushfl \n" + " popl %eax \n" + " xorl %ecx,%eax \n" + " jz 1f \n" + " movl $1,-8(%ebp) \n" + "1: \n"); #elif defined(__sun) && defined(__amd64) - __asm (" pushfq \n" - " popq %rax \n" - " movq %rax,%rcx \n" - " xorl $0x200000,%eax \n" - " pushq %rax \n" - " popfq \n" - " pushfq \n" - " popq %rax \n" - " xorl %ecx,%eax \n" - " jz 1f \n" - " movl $1,-8(%rbp) \n" - "1: \n"); + __asm(" pushfq \n" + " popq %rax \n" + " movq %rax,%rcx \n" + " xorl $0x200000,%eax \n" + " pushq %rax \n" + " popfq \n" + " pushfq \n" + " popq %rax \n" + " xorl %ecx,%eax \n" + " jz 1f \n" + " movl $1,-8(%rbp) \n" + "1: \n"); #endif return has_CPUID; } static __inline__ int -CPU_getCPUIDFeatures (void) +CPU_getCPUIDFeatures(void) { int features = 0; #if defined(__GNUC__) && ( defined(i386) || defined(__x86_64__) ) - __asm__ (" movl %%ebx,%%edi\n" " xorl %%eax,%%eax # Set up for CPUID instruction \n" " cpuid # Get and save vendor ID \n" " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" " jl 1f # We dont have the CPUID instruction\n" " xorl %%eax,%%eax \n" " incl %%eax \n" " cpuid # Get family/model/stepping/features\n" " movl %%edx,%0 \n" "1: \n" " movl %%edi,%%ebx\n": "=m" (features): + __asm__(" movl %%ebx,%%edi\n" " xorl %%eax,%%eax # Set up for CPUID instruction \n" " cpuid # Get and save vendor ID \n" " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" " jl 1f # We dont have the CPUID instruction\n" " xorl %%eax,%%eax \n" " incl %%eax \n" " cpuid # Get family/model/stepping/features\n" " movl %%edx,%0 \n" "1: \n" " movl %%edi,%%ebx\n": "=m"(features): :"%eax", "%ecx", "%edx", "%edi"); #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) __asm { @@ -148,11 +148,11 @@ } static __inline__ int -CPU_getCPUIDFeaturesExt (void) +CPU_getCPUIDFeaturesExt(void) { int features = 0; #if defined(__GNUC__) && (defined(i386) || defined (__x86_64__) ) - __asm__ (" movl %%ebx,%%edi\n" " movl $0x80000000,%%eax # Query for extended functions \n" " cpuid # Get extended function limit \n" " cmpl $0x80000001,%%eax \n" " jl 1f # Nope, we dont have function 800000001h\n" " movl $0x80000001,%%eax # Setup extended function 800000001h\n" " cpuid # and get the information \n" " movl %%edx,%0 \n" "1: \n" " movl %%edi,%%ebx\n": "=m" (features): + __asm__(" movl %%ebx,%%edi\n" " movl $0x80000000,%%eax # Query for extended functions \n" " cpuid # Get extended function limit \n" " cmpl $0x80000001,%%eax \n" " jl 1f # Nope, we dont have function 800000001h\n" " movl $0x80000001,%%eax # Setup extended function 800000001h\n" " cpuid # and get the information \n" " movl %%edx,%0 \n" "1: \n" " movl %%edi,%%ebx\n": "=m"(features): :"%eax", "%ecx", "%edx", "%edi"); #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) __asm { @@ -164,106 +164,106 @@ Setup extended function 800000001 h cpuid; and get the information mov features, edx done:} #elif defined(__sun) && ( defined(__i386) || defined(__amd64) ) - __asm (" movl %ebx,%edi\n" - " movl $0x80000000,%eax \n" - " cpuid \n" - " cmpl $0x80000001,%eax \n" - " jl 1f \n" - " movl $0x80000001,%eax \n" - " cpuid \n" + __asm(" movl %ebx,%edi\n" + " movl $0x80000000,%eax \n" + " cpuid \n" + " cmpl $0x80000001,%eax \n" + " jl 1f \n" + " movl $0x80000001,%eax \n" + " cpuid \n" #ifdef __i386 - " movl %edx,-8(%ebp) \n" + " movl %edx,-8(%ebp) \n" #else - " movl %edx,-8(%rbp) \n" + " movl %edx,-8(%rbp) \n" #endif - "1: \n" - " movl %edi,%ebx\n"); + "1: \n" + " movl %edi,%ebx\n"); #endif return features; } static __inline__ int -CPU_haveRDTSC (void) +CPU_haveRDTSC(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeatures () & 0x00000010); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeatures() & 0x00000010); } return 0; } static __inline__ int -CPU_haveMMX (void) +CPU_haveMMX(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeatures () & 0x00800000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeatures() & 0x00800000); } return 0; } static __inline__ int -CPU_haveMMXExt (void) +CPU_haveMMXExt(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeaturesExt () & 0x00400000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeaturesExt() & 0x00400000); } return 0; } static __inline__ int -CPU_have3DNow (void) +CPU_have3DNow(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeaturesExt () & 0x80000000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeaturesExt() & 0x80000000); } return 0; } static __inline__ int -CPU_have3DNowExt (void) +CPU_have3DNowExt(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeaturesExt () & 0x40000000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeaturesExt() & 0x40000000); } return 0; } static __inline__ int -CPU_haveSSE (void) +CPU_haveSSE(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeatures () & 0x02000000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeatures() & 0x02000000); } return 0; } static __inline__ int -CPU_haveSSE2 (void) +CPU_haveSSE2(void) { - if (CPU_haveCPUID ()) { - return (CPU_getCPUIDFeatures () & 0x04000000); + if (CPU_haveCPUID()) { + return (CPU_getCPUIDFeatures() & 0x04000000); } return 0; } static __inline__ int -CPU_haveAltiVec (void) +CPU_haveAltiVec(void) { volatile int altivec = 0; #if defined(__MACOSX__) && defined(__ppc__) int selectors[2] = { CTL_HW, HW_VECTORUNIT }; int hasVectorUnit = 0; - size_t length = sizeof (hasVectorUnit); - int error = sysctl (selectors, 2, &hasVectorUnit, &length, NULL, 0); + size_t length = sizeof(hasVectorUnit); + int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0); if (0 == error) altivec = (hasVectorUnit != 0); #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP void (*handler) (int sig); - handler = signal (SIGILL, illegal_instruction); - if (setjmp (jmpbuf) == 0) { + handler = signal(SIGILL, illegal_instruction); + if (setjmp(jmpbuf) == 0) { asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0"::"r" (-1)); altivec = 1; } - signal (SIGILL, handler); + signal(SIGILL, handler); #endif return altivec; } @@ -271,32 +271,32 @@ static Uint32 SDL_CPUFeatures = 0xFFFFFFFF; static Uint32 -SDL_GetCPUFeatures (void) +SDL_GetCPUFeatures(void) { if (SDL_CPUFeatures == 0xFFFFFFFF) { SDL_CPUFeatures = 0; - if (CPU_haveRDTSC ()) { + if (CPU_haveRDTSC()) { SDL_CPUFeatures |= CPU_HAS_RDTSC; } - if (CPU_haveMMX ()) { + if (CPU_haveMMX()) { SDL_CPUFeatures |= CPU_HAS_MMX; } - if (CPU_haveMMXExt ()) { + if (CPU_haveMMXExt()) { SDL_CPUFeatures |= CPU_HAS_MMXEXT; } - if (CPU_have3DNow ()) { + if (CPU_have3DNow()) { SDL_CPUFeatures |= CPU_HAS_3DNOW; } - if (CPU_have3DNowExt ()) { + if (CPU_have3DNowExt()) { SDL_CPUFeatures |= CPU_HAS_3DNOWEXT; } - if (CPU_haveSSE ()) { + if (CPU_haveSSE()) { SDL_CPUFeatures |= CPU_HAS_SSE; } - if (CPU_haveSSE2 ()) { + if (CPU_haveSSE2()) { SDL_CPUFeatures |= CPU_HAS_SSE2; } - if (CPU_haveAltiVec ()) { + if (CPU_haveAltiVec()) { SDL_CPUFeatures |= CPU_HAS_ALTIVEC; } } @@ -304,72 +304,72 @@ } SDL_bool -SDL_HasRDTSC (void) +SDL_HasRDTSC(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_RDTSC) { + if (SDL_GetCPUFeatures() & CPU_HAS_RDTSC) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_HasMMX (void) +SDL_HasMMX(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_MMX) { + if (SDL_GetCPUFeatures() & CPU_HAS_MMX) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_HasMMXExt (void) +SDL_HasMMXExt(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_MMXEXT) { + if (SDL_GetCPUFeatures() & CPU_HAS_MMXEXT) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_Has3DNow (void) +SDL_Has3DNow(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_3DNOW) { + if (SDL_GetCPUFeatures() & CPU_HAS_3DNOW) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_Has3DNowExt (void) +SDL_Has3DNowExt(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_3DNOWEXT) { + if (SDL_GetCPUFeatures() & CPU_HAS_3DNOWEXT) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_HasSSE (void) +SDL_HasSSE(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_SSE) { + if (SDL_GetCPUFeatures() & CPU_HAS_SSE) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_HasSSE2 (void) +SDL_HasSSE2(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_SSE2) { + if (SDL_GetCPUFeatures() & CPU_HAS_SSE2) { return SDL_TRUE; } return SDL_FALSE; } SDL_bool -SDL_HasAltiVec (void) +SDL_HasAltiVec(void) { - if (SDL_GetCPUFeatures () & CPU_HAS_ALTIVEC) { + if (SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC) { return SDL_TRUE; } return SDL_FALSE; @@ -380,16 +380,16 @@ #include <stdio.h> int -main () +main() { - printf ("RDTSC: %d\n", SDL_HasRDTSC ()); - printf ("MMX: %d\n", SDL_HasMMX ()); - printf ("MMXExt: %d\n", SDL_HasMMXExt ()); - printf ("3DNow: %d\n", SDL_Has3DNow ()); - printf ("3DNowExt: %d\n", SDL_Has3DNowExt ()); - printf ("SSE: %d\n", SDL_HasSSE ()); - printf ("SSE2: %d\n", SDL_HasSSE2 ()); - printf ("AltiVec: %d\n", SDL_HasAltiVec ()); + printf("RDTSC: %d\n", SDL_HasRDTSC()); + printf("MMX: %d\n", SDL_HasMMX()); + printf("MMXExt: %d\n", SDL_HasMMXExt()); + printf("3DNow: %d\n", SDL_Has3DNow()); + printf("3DNowExt: %d\n", SDL_Has3DNowExt()); + printf("SSE: %d\n", SDL_HasSSE()); + printf("SSE2: %d\n", SDL_HasSSE2()); + printf("AltiVec: %d\n", SDL_HasAltiVec()); return 0; }