4006N/A; $Id$

4006N/A;; @file

4006N/A; testcase helpers.

4006N/A;

363N/A

363N/A;

363N/A; Copyright (C) 2006 InnoTek Systemberatung GmbH

363N/A;

363N/A; This file is part of VirtualBox Open Source Edition (OSE), as

363N/A; available from http://www.virtualbox.org. This file is free software;

363N/A; you can redistribute it and/or modify it under the terms of the GNU

363N/A; General Public License as published by the Free Software Foundation,

363N/A; in version 2 as it comes in the "COPYING" file of the VirtualBox OSE

363N/A; distribution. VirtualBox OSE is distributed in the hope that it will

363N/A; be useful, but WITHOUT ANY WARRANTY of any kind.

7161N/A;

363N/A; If you received this file as part of a commercial VirtualBox

363N/A; distribution, then only the terms of your commercial VirtualBox

363N/A; license agreement apply instead of the previous paragraph.

363N/A;

363N/A

363N/A%include "VBox/asmdefs.mac"

363N/A%include "VBox/cpum.mac"

7161N/A

363N/ABEGINCODE

363N/A

363N/A;;

363N/A; Saves the current CPU context.

363N/A;

363N/A; @uses none

363N/A; @param pCtx on stack. (Caller cleans up, as always.)

363N/ABEGINPROC TSTSaveCtx

363N/A push edx

363N/A mov edx, [esp + 8] ; argument.

7161N/A mov [edx + CPUMCTX.eax], eax

363N/A mov [edx + CPUMCTX.ebx], ebx

363N/A mov [edx + CPUMCTX.ecx], ecx

363N/A pop dword [edx + CPUMCTX.edx]

363N/A mov [edx + CPUMCTX.edi], edi

363N/A mov [edx + CPUMCTX.esi], esi

363N/A mov [edx + CPUMCTX.ebp], ebp

363N/A mov [edx + CPUMCTX.esp], esp

363N/A ;mov eax, [esp] ....not this one...

363N/A ;mov [edx + CPUMCTX.eip], eax

363N/A xor eax, eax

7161N/A mov eax, ss

363N/A mov [edx + CPUMCTX.ss], eax

363N/A mov eax, cs

363N/A mov [edx + CPUMCTX.cs], eax

363N/A mov eax, ds

363N/A mov [edx + CPUMCTX.ds], eax

363N/A mov eax, es

363N/A mov [edx + CPUMCTX.es], eax

363N/A mov eax, fs

mov [edx + CPUMCTX.fs], eax

mov eax, gs

mov [edx + CPUMCTX.gs], eax

pushfd

pop eax

mov [edx + CPUMCTX.eflags], eax

fxsave [edx + CPUMCTX.fpu]

mov eax, [edx + CPUMCTX.eax]

mov edx, [edx + CPUMCTX.edx]

ret

ENDPROC TSTSaveCtx

;;

; Compares two context structures.

; @returns eax == 0 if equal.

; @returns eax != 0 if different.

; @param pCtx1 on stack.

; @param pCtx2 on stack.

; @uses nothing but eax and flags.

;

BEGINPROC TSTCompareCtx

push esi

push edi

push ecx

mov esi, [esp + 10h] ; pCtx1

mov edi, [esp + 14h] ; pCtx2

mov ecx, CPUMCTX_size >> 2

repz cmpsd

jz return

shl ecx, 2

mov eax, CPUMCTX_size + 1

sub eax, ecx ; field offset + 1 byte.

pop ecx

pop edi

pop esi

ret

return:

xor eax, eax

pop ecx

pop edi

pop esi

ret

ENDPROC TSTCompareCtx