arch/mips/regfile/int_regfile.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
  29 #ifndef __ARCH_MIPS_INT_REGFILE_HH__
  30 #define __ARCH_MIPS_INT_REGFILE_HH__
  31
  32 #include "arch/mips/types.hh"
  33 #include "arch/mips/constants.hh"
  34 #include "base/misc.hh"
  35 #include "sim/faults.hh"
  36
  37 class Checkpoint;
  38 class ExecContext;
  39 class Regfile;
  40
  41 namespace MipsISA
  42 {
  43     class IntRegFile
  44     {
  45       protected:
  46         IntReg regs[NumIntRegs];
  47
  48       public:
  49         IntReg readReg(int intReg)
  50         {
  51             return regs[intReg];
  52         }
  53
  54         Fault setReg(int intReg, const IntReg &val)
  55         {
  56             regs[intReg] = val;
  57             return NoFault;
  58         }
  59
  60         void serialize(std::ostream &os);
  61
  62         void unserialize(Checkpoint *cp, const std::string &section);
  63
  64     };
  65
  66     enum MiscIntRegNums {
  67        HI = NumIntArchRegs,
  68        LO
  69     };
  70
  71 } // namespace MipsISA
  72
  73 #endif