cpu/full_cpu/op_class.hh

   1 /*
   2  * Copyright (c) 2003-2004 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
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   8  * notice, this list of conditions and the following disclaimer;
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  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
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  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef __OP_CLASS_HH__
  30 #define __OP_CLASS_HH__
  31
  32 /**
  33  * @file
  34  * Definition of operation classes.
  35  */
  36
  37 /**
  38  * Instruction operation classes.  These classes are used for
  39  * assigning instructions to functional units.
  40  */
  41 enum OpClass {
  42     No_OpClass = 0,     /* inst does not use a functional unit */
  43     IntAluOp,           /* integer ALU */
  44     IntMultOp,          /* integer multiplier */
  45     IntDivOp,           /* integer divider */
  46     FloatAddOp,         /* floating point adder/subtractor */
  47     FloatCmpOp,         /* floating point comparator */
  48     FloatCvtOp,         /* floating point<->integer converter */
  49     FloatMultOp,        /* floating point multiplier */
  50     FloatDivOp,         /* floating point divider */
  51     FloatSqrtOp,        /* floating point square root */
  52     MemReadOp,          /* memory read port */
  53     MemWriteOp,         /* memory write port */
  54     IprAccessOp,        /* Internal Processor Register read/write port */
  55     InstPrefetchOp,     /* instruction prefetch port (on I-cache) */
  56     Num_OpClasses       /* total functional unit classes */
  57 };
  58
  59 /**
  60  * Array mapping OpClass enum values to strings.  Defined in fu_pool.cc.
  61  */
  62 extern const char *opClassStrings[];
  63
  64 #endif // __OP_CLASS_HH__