| /* |
| * 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 |
| */ |
| |
| #ifndef __ARCH_ALPHA_REGISTERS_HH__ |
| #define __ARCH_ALPHA_REGISTERS_HH__ |
| |
| #include "arch/alpha/generated/max_inst_regs.hh" |
| #include "arch/alpha/ipr.hh" |
| #include "arch/generic/types.hh" |
| #include "arch/generic/vec_reg.hh" |
| #include "base/types.hh" |
| |
| namespace AlphaISA { |
| |
| using AlphaISAInst::MaxInstSrcRegs; |
| using AlphaISAInst::MaxInstDestRegs; |
| |
| // Locked read/write flags are can't be detected by the ISA parser |
| const int MaxMiscDestRegs = AlphaISAInst::MaxMiscDestRegs + 1; |
| |
| typedef uint64_t IntReg; |
| |
| // floating point register file entry type |
| typedef double FloatReg; |
| typedef uint64_t FloatRegBits; |
| |
| // control register file contents |
| typedef uint64_t MiscReg; |
| |
| // dummy typedef since we don't have CC regs |
| typedef uint8_t CCReg; |
| |
| // dummy typedefs since we don't have vector regs |
| constexpr unsigned NumVecElemPerVecReg = 2; |
| using VecElem = uint32_t; |
| using VecReg = ::VecRegT<VecElem, NumVecElemPerVecReg, false>; |
| using ConstVecReg = ::VecRegT<VecElem, NumVecElemPerVecReg, true>; |
| using VecRegContainer = VecReg::Container; |
| // This has to be one to prevent warnings that are treated as errors |
| constexpr unsigned NumVecRegs = 1; |
| |
| enum MiscRegIndex |
| { |
| MISCREG_FPCR = NumInternalProcRegs, |
| MISCREG_UNIQ, |
| MISCREG_LOCKFLAG, |
| MISCREG_LOCKADDR, |
| MISCREG_INTR, |
| NUM_MISCREGS |
| }; |
| |
| // semantically meaningful register indices |
| const RegIndex ZeroReg = 31; // architecturally meaningful |
| // the rest of these depend on the ABI |
| const RegIndex StackPointerReg = 30; |
| const RegIndex GlobalPointerReg = 29; |
| const RegIndex ProcedureValueReg = 27; |
| const RegIndex ReturnAddressReg = 26; |
| const RegIndex ReturnValueReg = 0; |
| const RegIndex FramePointerReg = 15; |
| |
| const RegIndex SyscallNumReg = 0; |
| const RegIndex FirstArgumentReg = 16; |
| const RegIndex SyscallPseudoReturnReg = 20; |
| const RegIndex SyscallSuccessReg = 19; |
| |
| const int NumIntArchRegs = 32; |
| const int NumPALShadowRegs = 8; |
| const int NumFloatArchRegs = 32; |
| |
| const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs; |
| const int NumFloatRegs = NumFloatArchRegs; |
| const int NumCCRegs = 0; |
| const int NumMiscRegs = NUM_MISCREGS; |
| |
| const int TotalNumRegs = |
| NumIntRegs + NumFloatRegs + NumMiscRegs; |
| |
| } // namespace AlphaISA |
| |
| #endif // __ARCH_ALPHA_REGFILE_HH__ |