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extern NSSearchPathEnumerationState NSStartSearchPathEnumeration(
NSSearchPathDirectory, NSSearchPathDomainMask);
extern NSSearchPathEnumerationState NSGetNextSearchPathEnumeration(
NSSearchPathEnumerationState, char *);
#endif
#if defined(OF_X86_64) || defined(OF_X86)
struct x86_regs {
uint32_t eax, ebx, ecx, edx;
};
#endif
static size_t pageSize = 4096;
static size_t numberOfCPUs = 1;
static OFString *operatingSystemName = nil;
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extern NSSearchPathEnumerationState NSStartSearchPathEnumeration(
NSSearchPathDirectory, NSSearchPathDomainMask);
extern NSSearchPathEnumerationState NSGetNextSearchPathEnumeration(
NSSearchPathEnumerationState, char *);
#endif
#if defined(OF_X86_64) || defined(OF_X86)
struct X86Regs {
uint32_t eax, ebx, ecx, edx;
};
#endif
static size_t pageSize = 4096;
static size_t numberOfCPUs = 1;
static OFString *operatingSystemName = nil;
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operatingSystemVersion = [[OFString alloc]
initWithCString: utsname.release
encoding: [OFLocale encoding]];
#endif
}
#if defined(OF_X86_64) || defined(OF_X86)
static OF_INLINE struct x86_regs OF_CONST_FUNC
x86_cpuid(uint32_t eax, uint32_t ecx)
{
struct x86_regs regs;
# if defined(OF_X86_64) && defined(__GNUC__)
__asm__ (
"cpuid"
: "=a"(regs.eax), "=b"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
: "a"(eax), "c"(ecx)
);
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operatingSystemVersion = [[OFString alloc]
initWithCString: utsname.release
encoding: [OFLocale encoding]];
#endif
}
#if defined(OF_X86_64) || defined(OF_X86)
static OF_INLINE struct X86Regs OF_CONST_FUNC
x86CPUID(uint32_t eax, uint32_t ecx)
{
struct X86Regs regs;
# if defined(OF_X86_64) && defined(__GNUC__)
__asm__ (
"cpuid"
: "=a"(regs.eax), "=b"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
: "a"(eax), "c"(ecx)
);
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# endif
}
#endif
+ (OFString *)CPUVendor
{
#if (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
struct x86_regs regs = x86_cpuid(0, 0);
uint32_t buffer[3];
if (regs.eax == 0)
return nil;
buffer[0] = regs.ebx;
buffer[1] = regs.edx;
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# endif
}
#endif
+ (OFString *)CPUVendor
{
#if (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
struct X86Regs regs = x86CPUID(0, 0);
uint32_t buffer[3];
if (regs.eax == 0)
return nil;
buffer[0] = regs.ebx;
buffer[1] = regs.edx;
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{
#if (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
uint32_t buffer[12];
size_t i;
i = 0;
for (uint32_t eax = 0x80000002; eax <= 0x80000004; eax++) {
struct x86_regs regs = x86_cpuid(eax, 0);
buffer[i++] = regs.eax;
buffer[i++] = regs.ebx;
buffer[i++] = regs.ecx;
buffer[i++] = regs.edx;
}
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{
#if (defined(OF_X86_64) || defined(OF_X86)) && defined(__GNUC__)
uint32_t buffer[12];
size_t i;
i = 0;
for (uint32_t eax = 0x80000002; eax <= 0x80000004; eax++) {
struct X86Regs regs = x86CPUID(eax, 0);
buffer[i++] = regs.eax;
buffer[i++] = regs.ebx;
buffer[i++] = regs.ecx;
buffer[i++] = regs.edx;
}
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return nil;
#endif
}
#if defined(OF_X86_64) || defined(OF_X86)
+ (bool)supportsMMX
{
return (x86_cpuid(1, 0).edx & (1u << 23));
}
+ (bool)supportsSSE
{
return (x86_cpuid(1, 0).edx & (1u << 25));
}
+ (bool)supportsSSE2
{
return (x86_cpuid(1, 0).edx & (1u << 26));
}
+ (bool)supportsSSE3
{
return (x86_cpuid(1, 0).ecx & (1u << 0));
}
+ (bool)supportsSSSE3
{
return (x86_cpuid(1, 0).ecx & (1u << 9));
}
+ (bool)supportsSSE41
{
return (x86_cpuid(1, 0).ecx & (1u << 19));
}
+ (bool)supportsSSE42
{
return (x86_cpuid(1, 0).ecx & (1u << 20));
}
+ (bool)supportsAVX
{
return (x86_cpuid(1, 0).ecx & (1u << 28));
}
+ (bool)supportsAVX2
{
return x86_cpuid(0, 0).eax >= 7 && (x86_cpuid(7, 0).ebx & (1u << 5));
}
+ (bool)supportsAESNI
{
return (x86_cpuid(1, 0).ecx & (1u << 25));
}
+ (bool)supportsSHAExtensions
{
return (x86_cpuid(7, 0).ebx & (1u << 29));
}
#endif
#if defined(OF_POWERPC) || defined(OF_POWERPC64)
+ (bool)supportsAltiVec
{
# if defined(OF_MACOS)
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return nil;
#endif
}
#if defined(OF_X86_64) || defined(OF_X86)
+ (bool)supportsMMX
{
return (x86CPUID(1, 0).edx & (1u << 23));
}
+ (bool)supportsSSE
{
return (x86CPUID(1, 0).edx & (1u << 25));
}
+ (bool)supportsSSE2
{
return (x86CPUID(1, 0).edx & (1u << 26));
}
+ (bool)supportsSSE3
{
return (x86CPUID(1, 0).ecx & (1u << 0));
}
+ (bool)supportsSSSE3
{
return (x86CPUID(1, 0).ecx & (1u << 9));
}
+ (bool)supportsSSE41
{
return (x86CPUID(1, 0).ecx & (1u << 19));
}
+ (bool)supportsSSE42
{
return (x86CPUID(1, 0).ecx & (1u << 20));
}
+ (bool)supportsAVX
{
return (x86CPUID(1, 0).ecx & (1u << 28));
}
+ (bool)supportsAVX2
{
return x86CPUID(0, 0).eax >= 7 && (x86CPUID(7, 0).ebx & (1u << 5));
}
+ (bool)supportsAESNI
{
return (x86CPUID(1, 0).ecx & (1u << 25));
}
+ (bool)supportsSHAExtensions
{
return (x86CPUID(7, 0).ebx & (1u << 29));
}
#endif
#if defined(OF_POWERPC) || defined(OF_POWERPC64)
+ (bool)supportsAltiVec
{
# if defined(OF_MACOS)
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