src/arch/alpha/types.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: Nathan Binkert
  29  *          Steve Reinhardt
  30  */
  31
  32 #ifndef __ARCH_ALPHA_TYPES_HH__
  33 #define __ARCH_ALPHA_TYPES_HH__
  34
  35 #include "arch/generic/types.hh"
  36 #include "base/types.hh"
  37
  38 namespace AlphaISA {
  39
  40 typedef uint32_t MachInst;
  41 typedef uint64_t ExtMachInst;
  42
  43 typedef GenericISA::SimplePCState<MachInst> PCState;
  44
  45 enum annotes
  46 {
  47     ANNOTE_NONE = 0,
  48     // An impossible number for instruction annotations
  49     ITOUCH_ANNOTE = 0xffffffff
  50 };
  51
  52 /**
  53  * Alpha-specific memory request flags
  54  *
  55  * These flags map to the architecture-specific lower 8 bits of the
  56  * flags field in Request.
  57  */
  58 struct AlphaRequestFlags
  59 {
  60     typedef uint8_t ArchFlagsType;
  61
  62     /** The request is an ALPHA VPTE pal access (hw_ld). */
  63     static const ArchFlagsType VPTE    = 0x01;
  64     /** Use the alternate mode bits in ALPHA. */
  65     static const ArchFlagsType ALTMODE = 0x02;
  66 };
  67
  68 } // namespace AlphaISA
  69
  70 #endif // __ARCH_ALPHA_TYPES_HH__