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Lines 44-53
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| 44 |
unsigned int *ecx, |
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unsigned int *ecx, |
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unsigned int *edx) |
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unsigned int *edx) |
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{ |
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{ |
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/* call the cpuid instruction with the registers as input and output */ |
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/* call the cpuid instruction with the registers as input and output |
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__asm__("cpuid" |
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* modification by Dwokfur based on Sam Hocevar's discussion on |
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* how to make Assemly code PIC compatible: |
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* http://sam.zoy.org/blog/2007-04-13-shlib-with-non-pic-code-have-inline-assembly-and-pic-mix-well |
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*/ |
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__asm__("pushl %%ebx \n\t" /* save %ebx */ |
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"cpuid \n\t" |
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"movl %%ebx, %1 \n\t" /* save what cpuid just put in %ebx */ |
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"popl %%ebx \n\t" /* restore the old %ebx */ |
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: "=a" (*eax), |
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: "=a" (*eax), |
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"=b" (*ebx), |
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"=r" (*ebx), |
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"=c" (*ecx), |
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"=c" (*ecx), |
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"=d" (*edx) |
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"=d" (*edx) |
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: "0" (*eax), |
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: "0" (*eax), |
