mult.hh revision 7158 
1/*
2 * Copyright (c) 2010 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder.  You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Authors: Gabe Black
38 */
39#ifndef __ARCH_ARM_INSTS_MULT_HH__
40#define __ARCH_ARM_INSTS_MULT_HH__
41
42#include "arch/arm/insts/static_inst.hh"
43#include "base/trace.hh"
44
45namespace ArmISA
46{
47
48/**
49 * Base class for multipy instructions using three registers.
50 */
51class Mult3 : public PredOp
52{
53  protected:
54    IntRegIndex reg0, reg1, reg2;
55
56    Mult3(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
57          IntRegIndex _reg0, IntRegIndex _reg1, IntRegIndex _reg2) :
58        PredOp(mnem, _machInst, __opClass),
59        reg0(_reg0), reg1(_reg1), reg2(_reg2)
60    {}
61};
62
63/**
64 * Base class for multipy instructions using four registers.
65 */
66class Mult4 : public Mult3
67{
68  protected:
69    IntRegIndex reg3;
70
71    Mult4(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
72          IntRegIndex _reg0, IntRegIndex _reg1,
73          IntRegIndex _reg2, IntRegIndex _reg3) :
74        Mult3(mnem, _machInst, __opClass, _reg0, _reg1, _reg2), reg3(_reg3)
75    {}
76};
77}
78
79#endif //__ARCH_ARM_INSTS_MULT_HH__
80