src/cpu/op_class.hh

/*
 * Copyright (c) 2003-2005 The Regents of The University of Michigan
 * All rights reserved.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef __CPU__OP_CLASS_HH__
#define __CPU__OP_CLASS_HH__

/**
 * @file
 * Definition of operation classes.
 */

/**
 * Instruction operation classes.  These classes are used for
 * assigning instructions to functional units.
 */
enum OpClass {
    No_OpClass = 0,	///< Instruction does not use a functional unit
    IntAluOp,		///< Integer ALU operaton (add/sub/logical)
    IntMultOp,		///< Integer multiply
    IntDivOp,		///< Integer divide
    FloatAddOp,		///< Floating point add/subtract
    FloatCmpOp,		///< Floating point comparison
    FloatCvtOp,		///< Floating point<->integer conversion
    FloatMultOp,	///< Floating point multiply
    FloatDivOp,		///< Floating point divide
    FloatSqrtOp,	///< Floating point square root
    MemReadOp,		///< Memory read port
    MemWriteOp,		///< Memory write port
    IprAccessOp,	///< Internal Processor Register read/write port
    InstPrefetchOp,	///< Instruction prefetch port (on I-cache)
    Num_OpClasses	///< Total number of operation classes
};

/**
 * Array mapping OpClass enum values to strings.  Defined in op_class.cc.
 */
extern const char *opClassStrings[];

#endif // __CPU__OP_CLASS_HH__