Note: has_SIMD is not tested.
------------------------------------
int has_3DNow (void)
{
__asm__ (
"pushal \n"
"pushfl \n"
"popl %eax \n"
"movl %eax,%ecx \n"
"xorl $0x00200000,%eax \n"
"pushl %eax \n"
"popfl \n"
"pushfl \n"
"popl %eax \n"
"cmpl %ecx,%eax \n"
"jz NO_CPUID1 \n"
"movl $0x80000000,%eax \n"
"CPUID \n"
"cmpl $0x80000000,%eax \n"
"jbe NO_EXTENDED_MSR1 \n"
"movl $0x80000001,%eax \n"
"CPUID \n"
"testl $0x80000000,%edx \n"
"jz NO_3DNow1 \n"
"popal \n"
"movl $1,%eax \n"
"jmp return1 \n"
"NO_CPUID1: \n"
"NO_EXTENDED_MSR1: \n"
"NO_3DNow1: \n"
"popal \n"
"xorl %eax,%eax \n"
"return1: \n"
);
return;
}
int has_MMX (void)
{
__asm__ (
"pushal \n"
"pushfl \n"
"popl %eax \n"
"movl %eax,%ecx \n"
"xorl $0x00200000,%eax \n"
"pushl %eax \n"
"popfl \n"
"pushfl \n"
"popl %eax \n"
"cmpl %ecx,%eax \n"
"jz NO_CPUID2 \n"
"movl $1,%eax \n"
"CPUID \n"
"testl $0x800000,%edx \n"
"jz NO_MMX2 \n"
"popal \n"
"movl $1,%eax \n"
"jmp return2 \n"
"NO_CPUID2: \n"
"NO_MMX2: \n"
"popal \n"
"xorl %eax,%eax \n"
"return2: \n"
);
return;
}
int has_SIMD (void)
{
__asm__ (
"pushal \n"
"pushfl \n"
"popl %eax \n"
"movl %eax,%ecx \n"
"xorl $0x00200000,%eax \n"
"pushl %eax \n"
"popfl \n"
"pushfl \n"
"popl %eax \n"
"cmpl %ecx,%eax \n"
"jz NO_CPUID3 \n"
"movl $1,%eax \n"
"CPUID \n"
"testl $0x2000000,%edx \n"
"jz NO_SIMD3 \n"
"popal \n"
"movl $1,%eax \n"
"jmp return3 \n"
"NO_CPUID3: \n"
"NO_SIMD3: \n"
"popal \n"
"xorl %eax,%eax \n"
"return3: \n"
);
return;
}
-------------------------------------------------------
--
Mit freundlichen Grüßen
Frank Klemm
eMail | [EMAIL PROTECTED] home: [EMAIL PROTECTED]
phone | +49 (3641) 64-2721 home: +49 (3641) 390545
sMail | R.-Breitscheid-Str. 43, 07747 Jena, Germany
--
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