[239] | 1 | #include "stdafx.h"
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| 2 |
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| 3 | #include <CodeGenerator.h>
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| 4 |
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| 5 |
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[247] | 6 | void CodeGenerator::ResolveExitSubSchedule()
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| 7 | {
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| 8 | BOOST_FOREACH( long exitSubCodePosition, exitSubCodePositions )
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| 9 | {
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| 10 | pNativeCode->Overwrite( exitSubCodePosition, (long)( pNativeCode->GetSize()-(exitSubCodePosition+sizeof(long)) ) );
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| 11 | }
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| 12 | }
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| 13 |
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[239] | 14 | void CodeGenerator::CheckUnresolveSchedule()
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| 15 | {
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| 16 | if( pertialSchedules.size() > 0 )
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| 17 | {
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| 18 | SetError();
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| 19 | }
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| 20 | }
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| 21 |
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[251] | 22 | void CodeGenerator::opfix( const PertialSchedule *pPertialSchedule, long newValue )
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| 23 | {
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| 24 | bool isSuccessful = false;
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[239] | 25 |
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[251] | 26 | PertialSchedules::iterator it = pertialSchedules.begin();
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| 27 | while( it != pertialSchedules.end() )
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| 28 | {
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| 29 | if( (*it) == pPertialSchedule )
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| 30 | {
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| 31 | if( pPertialSchedule->GetTypeSize() == sizeof(char) )
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| 32 | {
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| 33 | if( newValue < -128 || 127 < newValue )
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| 34 | {
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| 35 | // 範囲外
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| 36 | SetError();
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| 37 | }
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| 38 |
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| 39 | pNativeCode->Overwrite( pPertialSchedule->GetCodePos(), (char)newValue );
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| 40 | }
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| 41 | else if( pPertialSchedule->GetTypeSize() == sizeof(long) )
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| 42 | {
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| 43 | pNativeCode->Overwrite( pPertialSchedule->GetCodePos(), newValue );
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| 44 | }
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| 45 | else
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| 46 | {
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| 47 | SetError();
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| 48 | }
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| 49 |
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| 50 | it = pertialSchedules.erase( it );
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| 51 | delete pPertialSchedule;
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| 52 |
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| 53 | isSuccessful = true;
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[253] | 54 | break;
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[251] | 55 | }
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| 56 | else
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| 57 | {
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| 58 | it++;
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | if( isSuccessful == false )
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| 63 | {
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| 64 | SetError();
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| 65 | }
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| 66 | }
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| 67 |
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[253] | 68 | void CodeGenerator::opfix_offset( const PertialSchedule *pPertialSchedule, long offset )
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| 69 | {
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| 70 | bool isSuccessful = false;
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[251] | 71 |
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[253] | 72 | PertialSchedules::iterator it = pertialSchedules.begin();
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| 73 | while( it != pertialSchedules.end() )
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| 74 | {
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| 75 | if( (*it) == pPertialSchedule )
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| 76 | {
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| 77 | if( pPertialSchedule->GetTypeSize() == sizeof(long) )
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| 78 | {
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| 79 | pNativeCode->Overwrite(
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| 80 | pPertialSchedule->GetCodePos(),
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| 81 | pNativeCode->GetLong(pPertialSchedule->GetCodePos()) + offset
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| 82 | );
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| 83 | }
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| 84 | else
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| 85 | {
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| 86 | SetError();
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| 87 | }
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| 88 |
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| 89 | it = pertialSchedules.erase( it );
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| 90 | delete pPertialSchedule;
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| 91 |
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| 92 | isSuccessful = true;
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| 93 | break;
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| 94 | }
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| 95 | else
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| 96 | {
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| 97 | it++;
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| 98 | }
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| 99 | }
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| 100 |
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| 101 | if( isSuccessful == false )
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| 102 | {
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| 103 | SetError();
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| 104 | }
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| 105 | }
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| 106 |
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| 107 |
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[239] | 108 | // 分岐関連
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| 109 | void CodeGenerator::opfix_JmpPertialSchedule( const PertialSchedule *pPertialSchedule )
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| 110 | {
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| 111 | bool isSuccessful = false;
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| 112 |
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[248] | 113 | PertialSchedules::iterator it = pertialSchedules.begin();
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[239] | 114 | while( it != pertialSchedules.end() )
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| 115 | {
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| 116 | if( (*it) == pPertialSchedule )
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| 117 | {
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[241] | 118 | long newValue = pNativeCode->GetSize() - (pPertialSchedule->GetCodePos()+pPertialSchedule->GetTypeSize());
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| 119 |
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[239] | 120 | if( pPertialSchedule->GetTypeSize() == sizeof(char) )
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| 121 | {
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[241] | 122 | if( newValue < -128 || 127 < newValue )
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| 123 | {
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| 124 | // 範囲外
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| 125 | SetError();
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| 126 | }
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[239] | 127 |
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[241] | 128 | pNativeCode->Overwrite( pPertialSchedule->GetCodePos(), (char)newValue );
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[239] | 129 | }
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[241] | 130 | else if( pPertialSchedule->GetTypeSize() == sizeof(long) )
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| 131 | {
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| 132 | pNativeCode->Overwrite( pPertialSchedule->GetCodePos(), newValue );
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| 133 | }
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[239] | 134 | else
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| 135 | {
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| 136 | SetError();
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| 137 | }
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| 138 |
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[245] | 139 | it = pertialSchedules.erase( it );
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[239] | 140 | delete pPertialSchedule;
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| 141 |
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| 142 | isSuccessful = true;
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| 143 | }
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| 144 | else
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| 145 | {
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| 146 | it++;
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| 147 | }
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| 148 | }
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| 149 |
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| 150 | if( isSuccessful == false )
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| 151 | {
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| 152 | SetError();
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| 153 | }
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| 154 | }
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[248] | 155 | const PertialSchedule *CodeGenerator::__jmp_op_format( char opcode, long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 156 | {
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[241] | 157 | long beginCodePos = pNativeCode->GetSize();
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[239] | 158 |
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[241] | 159 | if( opcode == (char)0xEB )
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| 160 | {
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| 161 | // jmp命令のとき
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| 162 | if( op_size == sizeof(char) )
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| 163 | {
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| 164 | pNativeCode->Put( (char)opcode );
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| 165 | }
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| 166 | else if( op_size == sizeof(long) )
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| 167 | {
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| 168 | pNativeCode->Put( (char)0xE9 );
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| 169 | }
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| 170 | else
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| 171 | {
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| 172 | SetError();
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| 173 | }
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| 174 | }
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| 175 | else
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| 176 | {
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| 177 | if( op_size == sizeof(char) )
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| 178 | {
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| 179 | pNativeCode->Put( (char)((char)0x70 | opcode) );
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| 180 | }
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| 181 | else if( op_size == sizeof(long) )
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| 182 | {
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| 183 | pNativeCode->Put( (char)0x0F );
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| 184 | pNativeCode->Put( (char)((char)0x80 | opcode) );
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| 185 | }
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| 186 | else
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| 187 | {
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| 188 | SetError();
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| 189 | }
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| 190 | }
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| 191 |
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[245] | 192 | const PertialSchedule *pPertialSchedule = NULL;
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[239] | 193 | if( isPertialSchedule )
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| 194 | {
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| 195 | pertialSchedules.push_back( new PertialSchedule( pNativeCode->GetSize(), op_size ) );
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[251] | 196 | pPertialSchedule = pertialSchedules.back();
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[239] | 197 | }
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| 198 |
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[241] | 199 | if( isSelfOpcodeOffset )
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| 200 | {
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| 201 | // 自分自身の命令サイズを考慮する場合
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[276] | 202 | offset -= ( pNativeCode->GetSize() - beginCodePos ) + op_size;
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[241] | 203 | }
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| 204 |
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[239] | 205 | if( op_size == sizeof(char) )
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| 206 | {
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| 207 | pNativeCode->Put( (char)offset );
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| 208 | }
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| 209 | else if( op_size == sizeof(long) )
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| 210 | {
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| 211 | pNativeCode->Put( offset );
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| 212 | }
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| 213 | else
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| 214 | {
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| 215 | SetError();
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| 216 | }
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| 217 |
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| 218 | return pPertialSchedule;
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| 219 | }
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[250] | 220 | const PertialSchedule *CodeGenerator::op_jle( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 221 | {
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[250] | 222 | return __jmp_op_format( (char)0x0E, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 223 | }
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[250] | 224 | const PertialSchedule *CodeGenerator::op_jbe( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 225 | {
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[250] | 226 | return __jmp_op_format( (char)0x06, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 227 | }
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[250] | 228 | const PertialSchedule *CodeGenerator::op_jge( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 229 | {
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[250] | 230 | return __jmp_op_format( (char)0x0D, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 231 | }
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[250] | 232 | const PertialSchedule *CodeGenerator::op_jae( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 233 | {
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[250] | 234 | return __jmp_op_format( (char)0x03, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 235 | }
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[250] | 236 | const PertialSchedule *CodeGenerator::op_jl( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 237 | {
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[250] | 238 | return __jmp_op_format( (char)0x0C, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 239 | }
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[250] | 240 | const PertialSchedule *CodeGenerator::op_jb( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 241 | {
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[250] | 242 | return __jmp_op_format( (char)0x02, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 243 | }
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[250] | 244 | const PertialSchedule *CodeGenerator::op_jg( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 245 | {
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[250] | 246 | return __jmp_op_format( (char)0x0F, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 247 | }
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[250] | 248 | const PertialSchedule *CodeGenerator::op_ja( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 249 | {
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[250] | 250 | return __jmp_op_format( (char)0x07, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 251 | }
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[250] | 252 | const PertialSchedule *CodeGenerator::op_jne( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 253 | {
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[250] | 254 | return __jmp_op_format( (char)0x05, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 255 | }
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[250] | 256 | const PertialSchedule *CodeGenerator::op_je( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 257 | {
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[250] | 258 | return __jmp_op_format( (char)0x04, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 259 | }
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[248] | 260 | const PertialSchedule *CodeGenerator::op_jmp( long offset, int op_size, bool isPertialSchedule, bool isSelfOpcodeOffset )
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[239] | 261 | {
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[241] | 262 | return __jmp_op_format( (char)0xEB, offset, op_size, isPertialSchedule, isSelfOpcodeOffset );
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[239] | 263 | }
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[241] | 264 | void CodeGenerator::op_jmp_continue()
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| 265 | {
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[254] | 266 | if( GetContinueCodePos() == -1 )
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[241] | 267 | {
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| 268 | SetError(12,"Continue",cp);
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| 269 | return;
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| 270 | }
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[254] | 271 | op_jmp( GetContinueCodePos() - pNativeCode->GetSize(), sizeof(long), false, true );
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[241] | 272 | }
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[247] | 273 | void CodeGenerator::op_jmp_exitsub()
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| 274 | {
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| 275 | // オペコード
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| 276 | pNativeCode->Put( (char)0xE9 );
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| 277 |
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| 278 | exitSubCodePositions.push_back( pNativeCode->GetSize() );
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| 279 |
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| 280 | pNativeCode->Put( (long)0 );
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| 281 | }
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[253] | 282 | void CodeGenerator::op_jmp_goto_schedule( const std::string &name, int lineNum, int sourceCodePos )
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[246] | 283 | {
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| 284 | // オペコード
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| 285 | pNativeCode->Put( (char)0xE9 );
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| 286 |
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[253] | 287 | const GotoLabelSchedule *pGotoLabelSchedule = NULL;
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| 288 | if( name.size() == 0 )
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| 289 | {
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| 290 | pGotoLabelSchedule = new GotoLabelSchedule( name, pNativeCode->GetSize(), sourceCodePos );
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| 291 | }
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| 292 | else
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| 293 | {
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| 294 | pGotoLabelSchedule = new GotoLabelSchedule( name, pNativeCode->GetSize(), sourceCodePos );
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| 295 | }
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| 296 | gotoLabelSchedules.push_back( pGotoLabelSchedule );
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[246] | 297 |
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[253] | 298 | pertialSchedules.push_back( pGotoLabelSchedule );
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| 299 |
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[246] | 300 | pNativeCode->Put( (long)0 );
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| 301 | }
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