rdtsc: Difference between revisions
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=== See also === |
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* https://stackoverflow.com/questions/9887839/how-to-count-clock-cycles-with-rdtsc-in-gcc-x86/9887979 |
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[[Category:Programming]] |
[[Category:Programming]] |
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Latest revision as of 12:01, 1 March 2020
static inline uint64_t rdtsc(void)
{
uint32_t a;
uint32_t d;
asm volatile ("rdtsc" : "=a" (a), "=d" (d));
return (uint64_t) a | ((uint64_t) d << 32);
}