microregop.hh revision 4688:82d7cbf0e66d 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use.  Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 *     Director of Intellectual Property Licensing
21 *     Office of Strategy and Technology
22 *     Hewlett-Packard Company
23 *     1501 Page Mill Road
24 *     Palo Alto, California  94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer.  Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution.  Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission.  No right of
34 * sublicense is granted herewith.  Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses.  Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_INSTS_MICROREGOP_HH__
59#define __ARCH_X86_INSTS_MICROREGOP_HH__
60
61#include "arch/x86/insts/microop.hh"
62
63namespace X86ISA
64{
65    namespace ConditionTests
66    {
67        enum CondTest {
68            True,
69            NotFalse = True,
70            ECF,
71            EZF,
72            SZnZF,
73            MSTRZ,
74            STRZ,
75            MSTRC,
76            STRZnZF,
77            OF,
78            CF,
79            ZF,
80            CvZF,
81            SF,
82            PF,
83            SxOF,
84            SxOvZF,
85
86            False,
87            NotTrue = False,
88            NotECF,
89            NotEZF,
90            NotSZnZF,
91            NotMSTRZ,
92            NotSTRZ,
93            NotMSTRC,
94            NotSTRZnZF,
95            NotOF,
96            NotCF,
97            NotZF,
98            NotCvZF,
99            NotSF,
100            NotPF,
101            NotSxOF,
102            NotSxOvZF
103        };
104    }
105
106    /**
107     * Base classes for RegOps which provides a generateDisassembly method.
108     */
109    class RegOpBase : public X86MicroopBase
110    {
111      protected:
112        const RegIndex src1;
113        const RegIndex dest;
114        const uint8_t dataSize;
115        const uint16_t ext;
116
117        // Constructor
118        RegOpBase(ExtMachInst _machInst,
119                const char *mnem, const char *_instMnem,
120                bool isMicro, bool isDelayed,
121                bool isFirst, bool isLast,
122                RegIndex _src1, RegIndex _dest,
123                uint8_t _dataSize, uint16_t _ext,
124                OpClass __opClass) :
125            X86MicroopBase(_machInst, mnem, _instMnem,
126                    isMicro, isDelayed, isFirst, isLast,
127                    __opClass),
128            src1(_src1), dest(_dest),
129            dataSize(_dataSize), ext(_ext)
130        {
131        }
132
133        //Figure out what the condition code flags should be.
134        uint64_t genFlags(uint64_t oldFlags, uint64_t flagMask,
135                uint64_t _dest, uint64_t _src1, uint64_t _src2) const;
136        bool checkCondition(uint64_t flags) const;
137    };
138
139    class RegOp : public RegOpBase
140    {
141      protected:
142        const RegIndex src2;
143
144        // Constructor
145        RegOp(ExtMachInst _machInst,
146                const char *mnem, const char *_instMnem,
147                bool isMicro, bool isDelayed,
148                bool isFirst, bool isLast,
149                RegIndex _src1, RegIndex _src2, RegIndex _dest,
150                uint8_t _dataSize, uint16_t _ext,
151                OpClass __opClass) :
152            RegOpBase(_machInst, mnem, _instMnem,
153                    isMicro, isDelayed, isFirst, isLast,
154                    _src1, _dest, _dataSize, _ext,
155                    __opClass),
156            src2(_src2)
157        {
158        }
159
160        std::string generateDisassembly(Addr pc,
161            const SymbolTable *symtab) const;
162    };
163
164    class RegOpImm : public RegOpBase
165    {
166      protected:
167        const uint8_t imm8;
168
169        // Constructor
170        RegOpImm(ExtMachInst _machInst,
171                const char * mnem, const char *_instMnem,
172                bool isMicro, bool isDelayed,
173                bool isFirst, bool isLast,
174                RegIndex _src1, uint8_t _imm8, RegIndex _dest,
175                uint8_t _dataSize, uint16_t _ext,
176                OpClass __opClass) :
177            RegOpBase(_machInst, mnem, _instMnem,
178                    isMicro, isDelayed, isFirst, isLast,
179                    _src1, _dest, _dataSize, _ext,
180                    __opClass),
181            imm8(_imm8)
182        {
183        }
184
185        std::string generateDisassembly(Addr pc,
186            const SymbolTable *symtab) const;
187    };
188}
189
190#endif //__ARCH_X86_INSTS_MICROREGOP_HH__
191