base.isa revision 4524:f051dcff22b3 
1// -*- mode:c++ -*-
2
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55//
56// Authors: Gabe Black
57
58let {{
59    # This will be populated with mappings between microop mnemonics and
60    # the classes that represent them.
61    microopClasses = {}
62}};
63
64//A class which is the base of all x86 micro ops. It provides a function to
65//set necessary flags appropriately.
66output header {{
67    class X86MicroOpBase : public X86StaticInst
68    {
69      protected:
70        const char * instMnem;
71        uint8_t opSize;
72        uint8_t addrSize;
73
74        X86MicroOpBase(ExtMachInst _machInst,
75                const char *mnem, const char *_instMnem,
76                bool isMicro, bool isDelayed,
77                bool isFirst, bool isLast,
78                OpClass __opClass) :
79            X86StaticInst(mnem, _machInst, __opClass),
80            instMnem(_instMnem)
81        {
82            flags[IsMicroOp] = isMicro;
83            flags[IsDelayedCommit] = isDelayed;
84            flags[IsFirstMicroOp] = isFirst;
85            flags[IsLastMicroOp] = isLast;
86        }
87
88        std::string generateDisassembly(Addr pc,
89                const SymbolTable *symtab) const
90        {
91            std::stringstream ss;
92
93            ccprintf(ss, "\t%s.%s", instMnem, mnemonic);
94
95            return ss.str();
96        }
97    };
98}};
99
100//////////////////////////////////////////////////////////////////////////
101//
102// Base class for the python representation of x86 microops
103
104let {{
105    class X86Microop(object):
106        def __init__(self, name):
107            self.name = name
108
109        # This converts a list of python bools into
110        # a comma seperated list of C++ bools.
111        def microFlagsText(self, vals):
112            text = ""
113            for val in vals:
114                if val:
115                    text += ", true"
116                else:
117                    text += ", false"
118            return text
119
120        def getAllocator(self, mnemonic, *microFlags):
121            return 'new %s(machInst, %s)' % (self.className, mnemonic, self.microFlagsText(microFlags))
122}};
123
124//////////////////////////////////////////////////////////////////////////
125//
126// LdStOp Microop templates
127//
128//////////////////////////////////////////////////////////////////////////
129
130def template MicroLdStOpDeclare {{
131    class %(class_name)s : public X86MicroOpBase
132    {
133      protected:
134        const uint8_t scale;
135        const RegIndex index;
136        const RegIndex base;
137        const uint64_t disp;
138        const uint8_t segment;
139        const RegIndex data;
140        const uint8_t dataSize;
141        const uint8_t addressSize;
142        void buildMe();
143
144      public:
145        %(class_name)s(ExtMachInst _machInst,
146                const char * instMnem,
147                bool isMicro, bool isDelayed, bool isFirst, bool isLast,
148                uint8_t _scale, RegIndex _index, RegIndex _base,
149                uint64_t _disp, uint8_t _segment,
150                RegIndex _data,
151                uint8_t _dataSize, uint8_t _addressSize);
152
153        %(class_name)s(ExtMachInst _machInst,
154                const char * instMnem,
155                uint8_t _scale, RegIndex _index, RegIndex _base,
156                uint64_t _disp, uint8_t _segment,
157                RegIndex _data,
158                uint8_t _dataSize, uint8_t _addressSize);
159
160        %(BasicExecDeclare)s
161    };
162}};
163
164def template MicroLdStOpConstructor {{
165
166    inline void %(class_name)s::buildMe()
167    {
168        %(constructor)s;
169    }
170
171    inline %(class_name)s::%(class_name)s(
172            ExtMachInst machInst, const char * instMnem,
173            uint8_t _scale, RegIndex _index, RegIndex _base,
174            uint64_t _disp, uint8_t _segment,
175            RegIndex _data,
176            uint8_t _dataSize, uint8_t _addressSize) :
177        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
178                false, false, false, false, %(op_class)s),
179                scale(_scale), index(_index), base(_base),
180                disp(_disp), segment(_segment),
181                data(_data),
182                dataSize(_dataSize), addressSize(_addressSize)
183    {
184        buildMe();
185    }
186
187    inline %(class_name)s::%(class_name)s(
188            ExtMachInst machInst, const char * instMnem,
189            bool isMicro, bool isDelayed, bool isFirst, bool isLast,
190            uint8_t _scale, RegIndex _index, RegIndex _base,
191            uint64_t _disp, uint8_t segment,
192            RegIndex data,
193            uint8_t dataSize, uint8_t addressSize) :
194        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
195                isMicro, isDelayed, isFirst, isLast, %(op_class)s),
196                scale(_scale), index(_index), base(_base),
197                disp(_disp), segment(_segment),
198                data(_data),
199                dataSize(_dataSize), addressSize(_addressSize)
200    {
201        buildMe();
202    }
203}};
204
205//////////////////////////////////////////////////////////////////////////
206//
207// FpOp Microop templates
208//
209//////////////////////////////////////////////////////////////////////////
210
211//TODO Actually write an fp microop base class.
212