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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* 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: Gabe Black
* Ali Saidi
*/
#ifndef __ARCH_SPARC_REGISTERS_HH__
#define __ARCH_SPARC_REGISTERS_HH__
#include "arch/sparc/generated/max_inst_regs.hh"
#include "arch/sparc/miscregs.hh"
#include "arch/sparc/sparc_traits.hh"
#include "base/types.hh"
namespace SparcISA
{
using SparcISAInst::MaxInstSrcRegs;
using SparcISAInst::MaxInstDestRegs;
using SparcISAInst::MaxMiscDestRegs;
typedef uint64_t IntReg;
typedef uint64_t MiscReg;
typedef float FloatReg;
typedef uint32_t FloatRegBits;
// dummy typedef since we don't have CC regs
typedef uint8_t CCReg;
typedef union
{
IntReg intReg;
FloatReg fpreg;
MiscReg ctrlreg;
} AnyReg;
typedef uint16_t RegIndex;
// semantically meaningful register indices
const int ZeroReg = 0; // architecturally meaningful
// the rest of these depend on the ABI
const int ReturnAddressReg = 31; // post call, precall is 15
const int ReturnValueReg = 8; // Post return, 24 is pre-return.
const int StackPointerReg = 14;
const int FramePointerReg = 30;
// Some OS syscall use a second register (o1) to return a second value
const int SyscallPseudoReturnReg = 9;
const int NumIntArchRegs = 32;
const int NumIntRegs = (MaxGL + 1) * 8 + NWindows * 16 + NumMicroIntRegs;
const int NumCCRegs = 0;
const int TotalNumRegs = NumIntRegs + NumFloatRegs + NumMiscRegs;
// These enumerate all the registers for dependence tracking.
enum DependenceTags {
FP_Reg_Base = NumIntRegs,
CC_Reg_Base = FP_Reg_Base + NumFloatRegs,
Misc_Reg_Base = CC_Reg_Base + NumCCRegs, // NumCCRegs == 0
Max_Reg_Index = Misc_Reg_Base + NumMiscRegs,
};
} // namespace SparcISA
#endif
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