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x86-64 port (Jocelyn Mayer)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@752 c046a42c-6fe2-441c-8c8c-71466251a162
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bellard 2004-04-25 18:57:49 +00:00
parent 57206fd42a
commit 1115dde719
1 changed files with 13 additions and 0 deletions
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13
vl.c
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@ -362,6 +362,19 @@ int64_t cpu_get_real_ticks(void)
return val;
}
#elif defined(__x86_64__)
int64_t cpu_get_real_ticks(void)
{
uint32_t low,high;
int64_t val;
asm volatile("rdtsc" : "=a" (low), "=d" (high));
val = high;
val <<= 32;
val |= low;
return val;
}
#else
#error unsupported CPU
#endif