; $Id: tstRTPrfA.asm $ ;; @file ; IPRT - Comparing CPU registers and memory (cache). ; ; ; Copyright (C) 2007-2020 Oracle Corporation ; ; This file is part of VirtualBox Open Source Edition (OSE), as ; available from http://www.virtualbox.org. This file is free software; ; you can redistribute it and/or modify it under the terms of the GNU ; General Public License (GPL) as published by the Free Software ; Foundation, in version 2 as it comes in the "COPYING" file of the ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. ; ; The contents of this file may alternatively be used under the terms ; of the Common Development and Distribution License Version 1.0 ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the ; VirtualBox OSE distribution, in which case the provisions of the ; CDDL are applicable instead of those of the GPL. ; ; You may elect to license modified versions of this file under the ; terms and conditions of either the GPL or the CDDL or both. ; %include "iprt/asmdefs.mac" %define NUM_LOOPS 10000h BEGINCODE BEGINPROC tstRTPRfARegisterAccess push xBP mov xBP, xSP and xSP, ~3fh ; 64 byte align xSP push xBP mov xBP, xSP sub xSP, 20h mov xAX, 1 mov xDX, 1 mov ecx, NUM_LOOPS .again: add eax, ecx add xDX, xAX shr xAX, 3 shl xAX, 1 xor xDX, 01010101h add eax, ecx add xDX, xAX shr xAX, 3 shl xAX, 1 xor xDX, 01010101h add eax, ecx add xDX, xAX shr xAX, 3 shl xAX, 1 xor xDX, 01010101h dec ecx jnz .again leave leave ret ENDPROC tstRTPRfARegisterAccess BEGINPROC tstRTPRfAMemoryAccess push xBP mov xBP, xSP and xSP, ~3fh ; 64 byte align xSP push xBP mov xBP, xSP sub xSP, 20h %define VAR_XAX [xBP - xCB*1] %define VAR_XDX [xBP - xCB*2] %define VAR_ECX [xBP - xCB*3] mov RTCCPTR_PRE VAR_XAX, 1 mov RTCCPTR_PRE VAR_XDX, 1 mov dword VAR_ECX, NUM_LOOPS .again: mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h dec dword VAR_ECX jnz .again %undef VAR_XAX %undef VAR_XDX %undef VAR_ECX leave leave ret ENDPROC tstRTPRfAMemoryAccess BEGINPROC tstRTPRfAMemoryUnalignedAccess push xBP mov xBP, xSP and xSP, ~3fh ; 64 byte align xSP push xBP mov xBP, xSP sub xSP, 20h %define VAR_XAX [xBP - xCB*1 - 1] %define VAR_XDX [xBP - xCB*2 - 1] %define VAR_ECX [xBP - xCB*3 - 1] mov RTCCPTR_PRE VAR_XAX, 1 mov RTCCPTR_PRE VAR_XDX, 1 mov dword VAR_ECX, NUM_LOOPS .again: mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h mov eax, VAR_ECX add VAR_XAX, eax mov xAX, VAR_XAX add VAR_XDX, xAX shr RTCCPTR_PRE VAR_XAX, 3 shl RTCCPTR_PRE VAR_XAX, 1 xor RTCCPTR_PRE VAR_XDX, 01010101h dec dword VAR_ECX jnz .again %undef VAR_XAX %undef VAR_XDX %undef VAR_ECX leave leave ret ENDPROC tstRTPRfAMemoryUnalignedAccess