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/* $Id: bs3-cmn-PicUpdateMask.c $ */
/** @file
* BS3Kit - PIC Setup.
*/
/*
* Copyright (C) 2007-2019 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "bs3kit-template-header.h"
#include <iprt/asm-amd64-x86.h>
#include "bs3-cmn-pic.h"
#undef Bs3PicUpdateMask
BS3_CMN_DEF(uint16_t, Bs3PicUpdateMask,(uint16_t fAndMask, uint16_t fOrMask))
{
uint8_t bPic0Mask = (ASMInU8(BS3_PIC_PORT_MASTER + 1) & (uint8_t)fAndMask) | (uint8_t)fOrMask;
uint8_t bPic1Mask = (ASMInU8(BS3_PIC_PORT_SLAVE + 1) & (fAndMask >> 8)) | (fOrMask >> 8);
ASMOutU8(BS3_PIC_PORT_SLAVE + 1, bPic1Mask);
ASMOutU8(BS3_PIC_PORT_MASTER + 1, bPic0Mask);
return RT_MAKE_U16(bPic0Mask, bPic1Mask);
}
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