op_class.hh revision 2 
1/*
2 * Copyright (c) 2003 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
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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
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 */
41enum OpClass {
42    No_OpClass = 0,	/* inst does not use a functional unit */
43    IntALU,		/* integer ALU */
44    IntMULT,		/* integer multiplier */
45    IntDIV,		/* integer divider */
46    FloatADD,		/* floating point adder/subtractor */
47    FloatCMP,		/* floating point comparator */
48    FloatCVT,		/* floating point<->integer converter */
49    FloatMULT,		/* floating point multiplier */
50    FloatDIV,		/* floating point divider */
51    FloatSQRT,		/* floating point square root */
52    RdPort,		/* memory read port */
53    WrPort,		/* memory write port */
54    LvqPort,		/* load value queue read port (redundant threading) */
55    IPrefPort,
56    Num_OpClasses	/* total functional unit classes */
57};
58
59/**
60 * Array mapping OpClass enum values to strings.
61 */
62extern const char *opClassStrings[];
63
64#endif // __OP_CLASS_HH__
65