base.isa revision 4539 
1// -*- mode:c++ -*-
2
3// Copyright (c) 2007 The Hewlett-Packard Development Company
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44// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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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//
104//////////////////////////////////////////////////////////////////////////
105
106let {{
107    class X86Microop(object):
108        def __init__(self, name):
109            self.name = name
110
111        # This converts a python bool into a C++ bool
112        def cppBool(self, val):
113            if val:
114                return "true"
115            else:
116                return "false"
117
118        # This converts a list of python bools into
119        # a comma seperated list of C++ bools.
120        def microFlagsText(self, vals):
121            text = ""
122            for val in vals:
123                text += ", %s" % self.cppBool(val)
124            return text
125
126        def getAllocator(self, mnemonic, *microFlags):
127            return 'new %s(machInst, %s)' % (self.className, mnemonic, self.microFlagsText(microFlags))
128}};
129
130//////////////////////////////////////////////////////////////////////////
131//
132// LdStOp Microop templates
133//
134//////////////////////////////////////////////////////////////////////////
135
136def template MicroLdStOpDeclare {{
137    class %(class_name)s : public X86MicroopBase
138    {
139      protected:
140        const uint8_t scale;
141        const RegIndex index;
142        const RegIndex base;
143        const uint64_t disp;
144        const uint8_t segment;
145        const RegIndex data;
146        const uint8_t dataSize;
147        const uint8_t addressSize;
148        void buildMe();
149
150      public:
151        %(class_name)s(ExtMachInst _machInst,
152                const char * instMnem,
153                bool isMicro, bool isDelayed, bool isFirst, bool isLast,
154                uint8_t _scale, RegIndex _index, RegIndex _base,
155                uint64_t _disp, uint8_t _segment,
156                RegIndex _data,
157                uint8_t _dataSize, uint8_t _addressSize);
158
159        %(class_name)s(ExtMachInst _machInst,
160                const char * instMnem,
161                uint8_t _scale, RegIndex _index, RegIndex _base,
162                uint64_t _disp, uint8_t _segment,
163                RegIndex _data,
164                uint8_t _dataSize, uint8_t _addressSize);
165
166        %(BasicExecDeclare)s
167    };
168}};
169
170def template MicroLdStOpConstructor {{
171
172    inline void %(class_name)s::buildMe()
173    {
174        %(constructor)s;
175    }
176
177    inline %(class_name)s::%(class_name)s(
178            ExtMachInst machInst, const char * instMnem,
179            uint8_t _scale, RegIndex _index, RegIndex _base,
180            uint64_t _disp, uint8_t _segment,
181            RegIndex _data,
182            uint8_t _dataSize, uint8_t _addressSize) :
183        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
184                false, false, false, false, %(op_class)s),
185                scale(_scale), index(_index), base(_base),
186                disp(_disp), segment(_segment),
187                data(_data),
188                dataSize(_dataSize), addressSize(_addressSize)
189    {
190        buildMe();
191    }
192
193    inline %(class_name)s::%(class_name)s(
194            ExtMachInst machInst, const char * instMnem,
195            bool isMicro, bool isDelayed, bool isFirst, bool isLast,
196            uint8_t _scale, RegIndex _index, RegIndex _base,
197            uint64_t _disp, uint8_t segment,
198            RegIndex data,
199            uint8_t dataSize, uint8_t addressSize) :
200        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
201                isMicro, isDelayed, isFirst, isLast, %(op_class)s),
202                scale(_scale), index(_index), base(_base),
203                disp(_disp), segment(_segment),
204                data(_data),
205                dataSize(_dataSize), addressSize(_addressSize)
206    {
207        buildMe();
208    }
209}};
210
211//////////////////////////////////////////////////////////////////////////
212//
213// FpOp Microop templates
214//
215//////////////////////////////////////////////////////////////////////////
216
217//TODO Actually write an fp microop base class.
218