src/arch/alpha/floatregfile.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_FLOATREGFILE_HH__
  33 #define __ARCH_ALPHA_FLOATREGFILE_HH__
  34
  35 #include <iosfwd>
  36 #include <string>
  37
  38 #include "arch/alpha/isa_traits.hh"
  39 #include "arch/alpha/types.hh"
  40
  41 class Checkpoint;
  42
  43 namespace AlphaISA {
  44
  45 static inline std::string
  46 getFloatRegName(RegIndex)
  47 {
  48     return "";
  49 }
  50
  51 class FloatRegFile
  52 {
  53   public:
  54     union {
  55         uint64_t q[NumFloatRegs];   // integer qword view
  56         double d[NumFloatRegs];     // double-precision floating point view
  57     };
  58
  59     void clear();
  60
  61     void serialize(std::ostream &os);
  62     void unserialize(Checkpoint *cp, const std::string &section);
  63 };
  64
  65 } // namespace AlphaISA
  66
  67 #endif // __ARCH_ALPHA_FLOATREGFILE_HH__