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restored inline assembly code

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7099 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
gnick79
2011-02-07 19:08:19 +00:00
parent b1a63e3e8e
commit a4754956cb
1 changed files with 17 additions and 7 deletions
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24
Source/Core/Common/Src/CPUDetect.cpp
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@ -35,19 +35,29 @@
static inline void do_cpuid(unsigned int *eax, unsigned int *ebx, static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx) unsigned int *ecx, unsigned int *edx)
{ {
// Note: EBX is reserved on Mac OS X and in PIC on Linux, so it has to be #ifdef _LP64
// restored at the end of the asm block. __asm__("cpuid"
__asm__( : "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),
"=d" (*edx)
: "a" (*eax)
);
#else
// Note: EBX is reserved on Mac OS X and in PIC on Linux, so it has to
// restored at the end of the asm block.
__asm__(
"pushl %%ebx;" "pushl %%ebx;"
"cpuid;" "cpuid;"
"movl %%ebx,%1;" "movl %%ebx,%1;"
"popl %%ebx;" "popl %%ebx;"
: "=a" (*eax), : "=a" (*eax),
"=r" (*ebx), "=r" (*ebx),
"=c" (*ecx), "=c" (*ecx),
"=d" (*edx) "=d" (*edx)
: "a" (*eax) : "a" (*eax)
); );
#endif
} }
static void __cpuid(int info[4], int x) static void __cpuid(int info[4], int x)