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fix cpuid test on x86_64 and newer binutils

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gbeauche 2004-11-11 07:25:45 +00:00
parent 6774a0821d
commit 9e330d5615
1 changed files with 17 additions and 0 deletions
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17
SheepShaver/src/kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp
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@ -64,8 +64,13 @@ static unsigned int x86_cpuid(void)
CPUID(0). Preserve %ebx and %ecx; cpuid insn clobbers these, we
don't need their CPUID values here, and %ebx may be the PIC
register. */
#ifdef __x86_64__
__asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
: "=a" (fl1) : "0" (0) : "rdx", "cc");
#else
__asm__ ("push %%ecx ; push %%ebx ; cpuid ; pop %%ebx ; pop %%ecx"
: "=a" (fl1) : "0" (0) : "edx", "cc");
#endif
if (fl1 == 0)
return (0);
@ -86,6 +91,18 @@ powerpc_dyngen::powerpc_dyngen(dyngen_cpu_base cpu, int cache_size)
{
#if defined(__i386__) || defined(__x86_64__)
cpu_features = x86_cpuid();
#ifdef SHEEPSHAVER
if (cpu_features & (HWCAP_I386_MMX | HWCAP_I386_SSE | HWCAP_I386_SSE2)) {
printf("Detected CPU features:");
if (cpu_features & HWCAP_I386_MMX)
printf(" MMX");
if (cpu_features & HWCAP_I386_SSE)
printf(" SSE");
if (cpu_features & HWCAP_I386_SSE2)
printf(" SSE2");
printf("\n");
}
#endif
#endif
}