#------------------------------------------------------------------------------ # # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
# This program and the accompanying materials # are licensed and made available under the terms and conditions of the BSD License # which accompanies this distribution. The full text of the license may be found at # http://opensource.org/licenses/bsd-license.php # # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. # # Module Name: # # ReadTsc.S # # Abstract: # # AsmReadTsc function # # Notes: # #------------------------------------------------------------------------------ #------------------------------------------------------------------------------ # UINT64 # EFIAPI # AsmReadTsc ( # VOID # ); #------------------------------------------------------------------------------ ASM_GLOBAL ASM_PFX(AsmReadTsc) ASM_PFX(AsmReadTsc): rdtsc shl $0x20, %rdx or %rdx, %rax ret