static_inst.hh revision 4679:0b39fa8f5eb8 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
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4 *
5 * Redistribution and use of this software in source and binary forms,
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35 * output created using the software may be prepared, but only for
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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
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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_STATICINST_HH__
59#define __ARCH_X86_INSTS_STATICINST_HH__
60
61#include "cpu/static_inst.hh"
62
63namespace X86ISA
64{
65    /**
66     * Base class for all X86 static instructions.
67     */
68
69    class X86StaticInst : public StaticInst
70    {
71      protected:
72        // Constructor.
73        X86StaticInst(const char *mnem,
74             ExtMachInst _machInst, OpClass __opClass)
75                : StaticInst(mnem, _machInst, __opClass)
76            {
77            }
78
79        std::string generateDisassembly(Addr pc,
80            const SymbolTable *symtab) const;
81
82        void printMnemonic(std::ostream &os, const char * mnemonic) const;
83        void printMnemonic(std::ostream &os, const char * instMnemonic,
84                const char * mnemonic) const;
85
86        void printSegment(std::ostream &os, int segment) const;
87
88        void printReg(std::ostream &os, int reg) const;
89        void printSrcReg(std::ostream &os, int reg) const;
90        void printDestReg(std::ostream &os, int reg) const;
91
92        inline uint64_t merge(uint64_t into, uint64_t val, int size) const
93        {
94            X86IntReg reg;
95            reg = into;
96            //FIXME This needs to be handle high bytes as well
97            switch(size)
98            {
99              case 1:
100                reg.L = val;
101                break;
102              case 2:
103                reg.X = val;
104                break;
105              case 4:
106                //XXX Check if this should be zeroed or sign extended
107                reg = 0;
108                reg.E = val;
109                break;
110              case 8:
111                reg.R = val;
112                break;
113              default:
114                panic("Tried to merge with unrecognized size %d.\n", size);
115            }
116            return val;
117        }
118
119        inline uint64_t pick(uint64_t from, int size)
120        {
121            X86IntReg reg;
122            reg = from;
123            switch(size)
124            {
125              case 1:
126                return reg.L;
127              case 2:
128                return reg.E;
129              case 4:
130                return reg.X;
131              case 8:
132                return reg.R;
133              default:
134                panic("Tried to pick with unrecognized size %d.\n", size);
135            }
136        }
137    };
138}
139
140#endif //__ARCH_X86_INSTS_STATICINST_HH__
141