registers.hh revision 13614:52c5311db96b
1/* 2 * Copyright (c) 2003-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 */ 30 31#ifndef __ARCH_ALPHA_REGISTERS_HH__ 32#define __ARCH_ALPHA_REGISTERS_HH__ 33 34#include "arch/alpha/generated/max_inst_regs.hh" 35#include "arch/alpha/ipr.hh" 36#include "arch/generic/types.hh" 37#include "arch/generic/vec_pred_reg.hh" 38#include "arch/generic/vec_reg.hh" 39#include "base/types.hh" 40 41namespace AlphaISA { 42 43using AlphaISAInst::MaxInstSrcRegs; 44using AlphaISAInst::MaxInstDestRegs; 45 46// Locked read/write flags are can't be detected by the ISA parser 47const int MaxMiscDestRegs = AlphaISAInst::MaxMiscDestRegs + 1; 48 49// dummy typedef since we don't have CC regs 50typedef uint8_t CCReg; 51 52// Not applicable to Alpha 53using VecElem = ::DummyVecElem; 54using VecReg = ::DummyVecReg; 55using ConstVecReg = ::DummyConstVecReg; 56using VecRegContainer = ::DummyVecRegContainer; 57constexpr unsigned NumVecElemPerVecReg = ::DummyNumVecElemPerVecReg; 58constexpr size_t VecRegSizeBytes = ::DummyVecRegSizeBytes; 59 60// Not applicable to Alpha 61using VecPredReg = ::DummyVecPredReg; 62using ConstVecPredReg = ::DummyConstVecPredReg; 63using VecPredRegContainer = ::DummyVecPredRegContainer; 64constexpr size_t VecPredRegSizeBits = ::DummyVecPredRegSizeBits; 65constexpr bool VecPredRegHasPackedRepr = ::DummyVecPredRegHasPackedRepr; 66 67enum MiscRegIndex 68{ 69 MISCREG_FPCR = NumInternalProcRegs, 70 MISCREG_UNIQ, 71 MISCREG_LOCKFLAG, 72 MISCREG_LOCKADDR, 73 MISCREG_INTR, 74 NUM_MISCREGS 75}; 76 77// semantically meaningful register indices 78const RegIndex ZeroReg = 31; // architecturally meaningful 79// the rest of these depend on the ABI 80const RegIndex StackPointerReg = 30; 81const RegIndex GlobalPointerReg = 29; 82const RegIndex ProcedureValueReg = 27; 83const RegIndex ReturnAddressReg = 26; 84const RegIndex ReturnValueReg = 0; 85const RegIndex FramePointerReg = 15; 86 87const RegIndex SyscallNumReg = 0; 88const RegIndex FirstArgumentReg = 16; 89const RegIndex SyscallPseudoReturnReg = 20; 90const RegIndex SyscallSuccessReg = 19; 91 92const int NumIntArchRegs = 32; 93const int NumPALShadowRegs = 8; 94const int NumFloatArchRegs = 32; 95 96const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs; 97const int NumFloatRegs = NumFloatArchRegs; 98const int NumVecRegs = 1; // Not applicable to Alpha 99 // (1 to prevent warnings) 100const int NumVecPredRegs = 1; // Not applicable to Alpha 101 // (1 to prevent warnings) 102const int NumCCRegs = 0; 103const int NumMiscRegs = NUM_MISCREGS; 104 105const int TotalNumRegs = 106 NumIntRegs + NumFloatRegs + NumMiscRegs; 107 108} // namespace AlphaISA 109 110#endif // __ARCH_ALPHA_REGFILE_HH__ 111