# Check illegal EPT instructions in 64bit mode. .text _start: invept (%rcx), %bx invept (%rcx), %ebx invept %rbx, (%rcx) invept %rbx, %rcx invvpid (%rcx), %bx invvpid (%rcx), %ebx invvpid %rbx, (%rcx) invvpid %rbx, %rcx .intel_syntax noprefix invept bx, oword ptr [rcx] invept ebx, oword ptr [rcx] invept oword ptr [rcx], rbx invept rcx, rbx invvpid bx, oword ptr [rcx] invvpid ebx, oword ptr [rcx] invvpid oword ptr [rcx], rbx invvpid rcx, rbx