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Fixed cpuid assembly to work on PIC code

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This commit is contained in:
Sam Lantinga
2009-12-16 16:42:04 +00:00
parent 438cca0d46
commit c7df2f4089
1 changed files with 16 additions and 12 deletions
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28
src/cpuinfo/SDL_cpuinfo.c
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@@ -122,16 +122,16 @@ done:
#elif defined(__sun) && defined(__i386)
__asm (
" pushfl \n"
" popl %eax \n"
" movl %eax,%ecx \n"
" xorl $0x200000,%eax \n"
" pushl %eax \n"
" popfl \n"
" pushfl \n"
" popl %eax \n"
" xorl %ecx,%eax \n"
" jz 1f \n"
" movl $1,-8(%ebp) \n"
" popl %eax \n"
" movl %eax,%ecx \n"
" xorl $0x200000,%eax \n"
" pushl %eax \n"
" popfl \n"
" pushfl \n"
" popl %eax \n"
" xorl %ecx,%eax \n"
" jz 1f \n"
" movl $1,-8(%ebp) \n"
"1: \n"
);
#elif defined(__sun) && defined(__amd64)
@@ -156,8 +156,12 @@ done:
#if defined(__GNUC__) && (defined(i386) || defined(__x86_64__))
#define cpuid(func, a, b, c, d) \
__asm__ __volatile__ ("cpuid": \
"=a" (a), "=b" (b), "=c" (c), "=d" (d) : "a" (func))
__asm__ __volatile__ ( \
" pushl %%ebx \n" \
" cpuid \n" \
" movl %%ebx, %%esi \n" \
" popl %%ebx \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 { \