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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* Copyright (c) 2007-2008 The Florida State University
* Copyright (c) 2009 The University of Edinburgh
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Timothy M. Jones
* Gabe Black
* Stephen Hines
*/
#ifndef __ARCH_POWER_ISA_TRAITS_HH__
#define __ARCH_POWER_ISA_TRAITS_HH__
#include "arch/power/types.hh"
#include "base/types.hh"
namespace BigEndianGuest {};
class StaticInstPtr;
namespace PowerISA
{
using namespace BigEndianGuest;
StaticInstPtr decodeInst(ExtMachInst);
// POWER DOES NOT have a delay slot
#define ISA_HAS_DELAY_SLOT 0
const Addr PageShift = 12;
const Addr PageBytes = ULL(1) << PageShift;
const Addr Page_Mask = ~(PageBytes - 1);
const Addr PageOffset = PageBytes - 1;
const Addr PteShift = 3;
const Addr NPtePageShift = PageShift - PteShift;
const Addr NPtePage = ULL(1) << NPtePageShift;
const Addr PteMask = NPtePage - 1;
const int LogVMPageSize = 12; // 4K bytes
const int VMPageSize = (1 << LogVMPageSize);
const int MachineBytes = 4;
// This is ori 0, 0, 0
const ExtMachInst NoopMachInst = 0x60000000;
// Memory accesses can be unaligned
const bool HasUnalignedMemAcc = true;
} // PowerISA namespace
#endif // __ARCH_POWER_ISA_TRAITS_HH__
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