src/arch/x86/isa/formats/multi.isa

   1 // -*- mode:c++ -*-
   2
   3 // Copyright (c) 2007 The Hewlett-Packard Development Company
   4 // All rights reserved.
   5 //
   6 // The license below extends only to copyright in the software and shall
   7 // not be construed as granting a license to any other intellectual
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   9 // to a hardware implementation of the functionality of the software
  10 // licensed hereunder.  You may use the software subject to the license
  11 // terms below provided that you ensure that this notice is replicated
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  13 // modified or unmodified, in source code or in binary form.
  14 //
  15 // Redistribution and use in source and binary forms, with or without
  16 // modification, are permitted provided that the following conditions are
  17 // met: redistributions of source code must retain the above copyright
  18 // notice, this list of conditions and the following disclaimer;
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  20 // notice, this list of conditions and the following disclaimer in the
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  22 // neither the name of the copyright holders nor the names of its
  23 // contributors may be used to endorse or promote products derived from
  24 // this software without specific prior written permission.
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  26 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  29 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  32 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  37 //
  38 // Authors: Gabe Black
  39
  40 //////////////////////////////////////////////////////////////////////////
  41 //
  42 // Instructions operate on one or multiple types of sets of arguments.
  43 //
  44 //////////////////////////////////////////////////////////////////////////
  45
  46 def format Inst(*opTypeSet) {{
  47     blocks = specializeInst(Name, list(opTypeSet), EmulEnv())
  48     (header_output, decoder_output,
  49      decode_block, exec_output) = blocks.makeList()
  50 }};
  51
  52 def format MultiInst(switchVal, *opTypeSets) {{
  53     switcher = {}
  54     for (count, opTypeSet) in zip(xrange(len(opTypeSets)), opTypeSets):
  55         switcher[count] = (specializeInst, Name, opTypeSet, EmulEnv())
  56     blocks = doSplitDecode(switchVal, switcher)
  57     (header_output, decoder_output,
  58      decode_block, exec_output) = blocks.makeList()
  59 }};