src/arch/alpha/intregfile.hh

   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: Steve Reinhardt
  29  *          Gabe Black
  30  */
  31
  32 #ifndef __ARCH_ALPHA_INTREGFILE_HH__
  33 #define __ARCH_ALPHA_INTREGFILE_HH__
  34
  35 #include "arch/alpha/types.hh"
  36
  37 #include <iostream>
  38 #include <cstring>
  39
  40 class Checkpoint;
  41
  42 namespace AlphaISA
  43 {
  44     static inline std::string getIntRegName(RegIndex)
  45     {
  46         return "";
  47     }
  48
  49     // redirected register map, really only used for the full system case.
  50     extern const int reg_redir[NumIntRegs];
  51
  52     class IntRegFile
  53     {
  54       protected:
  55         IntReg regs[NumIntRegs];
  56
  57       public:
  58
  59         IntReg readReg(int intReg)
  60         {
  61             return regs[intReg];
  62         }
  63
  64         void setReg(int intReg, const IntReg &val)
  65         {
  66             regs[intReg] = val;
  67         }
  68
  69         void serialize(std::ostream &os);
  70
  71         void unserialize(Checkpoint *cp, const std::string &section);
  72
  73         void clear()
  74         { std::memset(regs, 0, sizeof(regs)); }
  75     };
  76 }
  77
  78 #endif