# Check 64bit WAITPKG instructions. .text _start: umonitor %rax umonitor %r10 umonitor %r10d umwait %ecx umwait %r10d umwait %edi, %edx, %eax tpause %ecx tpause %r10d tpause %edi, %edx, %eax .intel_syntax noprefix umwait esi, edx, eax tpause esi, edx, eax