src/cpu/FuncUnit.py

   1 # Copyright (c) 2006-2007 The Regents of The University of Michigan
   2 # All rights reserved.
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  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  26 #
  27 # Authors: Kevin Lim
  28
  29 from m5.SimObject import SimObject
  30 from m5.params import *
  31
  32 class OpClass(Enum):
  33     vals = ['No_OpClass', 'IntAlu', 'IntMult', 'IntDiv', 'FloatAdd',
  34             'FloatCmp', 'FloatCvt', 'FloatMult', 'FloatDiv', 'FloatSqrt',
  35             'MemRead', 'MemWrite', 'IprAccess', 'InstPrefetch']
  36
  37 class OpDesc(SimObject):
  38     type = 'OpDesc'
  39     issueLat = Param.Int(1, "cycles until another can be issued")
  40     opClass = Param.OpClass("type of operation")
  41     opLat = Param.Int(1, "cycles until result is available")
  42
  43 class FUDesc(SimObject):
  44     type = 'FUDesc'
  45     count = Param.Int("number of these FU's available")
  46     opList = VectorParam.OpDesc("operation classes for this FU type")