.CONST VMX_OK EQU 0 VMX_ERROR_WITH_STATUS EQU 1 VMX_ERROR_WITHOUT_STATUS EQU 2 .CODE ; unsigned char __stdcall AsmInvept( ; _In_ InvEptType invept_type, ; _In_ const InvEptDescriptor *invept_descriptor); AsmInvept PROC ; invept ecx, oword ptr [rdx] db 66h, 0fh, 38h, 80h, 0ah jz errorWithCode ; if (ZF) jmp jc errorWithoutCode ; if (CF) jmp xor rax, rax ; return VMX_OK ret errorWithoutCode: mov rax, VMX_ERROR_WITHOUT_STATUS ret errorWithCode: mov rax, VMX_ERROR_WITH_STATUS ret AsmInvept ENDP END