;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation. All rights reserved.
; SPDX-License-Identifier: BSD-2-Clause-Patent ; ; Module Name: ; ; ReadTsc.Asm ; ; Abstract: ; ; AsmReadTsc function ; ; Notes: ; ;------------------------------------------------------------------------------ DEFAULT REL SECTION .text ;------------------------------------------------------------------------------ ; UINT64 ; EFIAPI ; AsmReadTsc ( ; VOID ; ); ;------------------------------------------------------------------------------ global ASM_PFX(AsmReadTsc) ASM_PFX(AsmReadTsc): rdtsc shl rdx, 0x20 or rax, rdx ret