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Implemented 64-bit version of cpuid code

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404336
This commit is contained in:
Sam Lantinga 2009-12-17 04:01:29 +00:00
parent 0624fd8333
commit 8c0b853255
1 changed files with 9 additions and 1 deletions
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10
src/cpuinfo/SDL_cpuinfo.c
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@ -157,7 +157,7 @@ done:
return has_CPUID;
}
#if defined(__GNUC__) && (defined(i386) || defined(__x86_64__))
#if defined(__GNUC__) && defined(i386)
#define cpuid(func, a, b, c, d) \
__asm__ __volatile__ ( \
" pushl %%ebx \n" \
@ -165,6 +165,14 @@ done:
" movl %%ebx, %%esi \n" \
" popl %%ebx \n" : \
"=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func))
#elif defined(__GNUC__) && defined(__x86_64__)
#define cpuid(func, a, b, c, d) \
__asm__ __volatile__ ( \
" pushq %%rbx \n" \
" cpuid \n" \
" movq %%rbx, %%rsi \n" \
" popq %%rbx \n" : \
"=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func))
#elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
#define cpuid(func, a, b, c, d) \
__asm { \