| // Copyright 2011 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| #ifndef V8_BYTECODES_IRREGEXP_H_ |
| #define V8_BYTECODES_IRREGEXP_H_ |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| const int BYTECODE_MASK = 0xff; |
| // The first argument is packed in with the byte code in one word, but so it |
| // has 24 bits, but it can be positive and negative so only use 23 bits for |
| // positive values. |
| const unsigned int MAX_FIRST_ARG = 0x7fffffu; |
| const int BYTECODE_SHIFT = 8; |
| |
| #define BYTECODE_ITERATOR(V) \ |
| V(BREAK, 0, 4) /* bc8 */ \ |
| V(PUSH_CP, 1, 4) /* bc8 pad24 */ \ |
| V(PUSH_BT, 2, 8) /* bc8 pad24 offset32 */ \ |
| V(PUSH_REGISTER, 3, 4) /* bc8 reg_idx24 */ \ |
| V(SET_REGISTER_TO_CP, 4, 8) /* bc8 reg_idx24 offset32 */ \ |
| V(SET_CP_TO_REGISTER, 5, 4) /* bc8 reg_idx24 */ \ |
| V(SET_REGISTER_TO_SP, 6, 4) /* bc8 reg_idx24 */ \ |
| V(SET_SP_TO_REGISTER, 7, 4) /* bc8 reg_idx24 */ \ |
| V(SET_REGISTER, 8, 8) /* bc8 reg_idx24 value32 */ \ |
| V(ADVANCE_REGISTER, 9, 8) /* bc8 reg_idx24 value32 */ \ |
| V(POP_CP, 10, 4) /* bc8 pad24 */ \ |
| V(POP_BT, 11, 4) /* bc8 pad24 */ \ |
| V(POP_REGISTER, 12, 4) /* bc8 reg_idx24 */ \ |
| V(FAIL, 13, 4) /* bc8 pad24 */ \ |
| V(SUCCEED, 14, 4) /* bc8 pad24 */ \ |
| V(ADVANCE_CP, 15, 4) /* bc8 offset24 */ \ |
| V(GOTO, 16, 8) /* bc8 pad24 addr32 */ \ |
| V(LOAD_CURRENT_CHAR, 17, 8) /* bc8 offset24 addr32 */ \ |
| V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24 */ \ |
| V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32 */ \ |
| V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24 */ \ |
| V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32 */ \ |
| V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24 */ \ |
| V(CHECK_4_CHARS, 23, 12) /* bc8 pad24 uint32 addr32 */ \ |
| V(CHECK_CHAR, 24, 8) /* bc8 pad8 uint16 addr32 */ \ |
| V(CHECK_NOT_4_CHARS, 25, 12) /* bc8 pad24 uint32 addr32 */ \ |
| V(CHECK_NOT_CHAR, 26, 8) /* bc8 pad8 uint16 addr32 */ \ |
| V(AND_CHECK_4_CHARS, 27, 16) /* bc8 pad24 uint32 uint32 addr32 */ \ |
| V(AND_CHECK_CHAR, 28, 12) /* bc8 pad8 uint16 uint32 addr32 */ \ |
| V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32 */ \ |
| V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32 */ \ |
| V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 addr32 */ \ |
| V(CHECK_LT, 32, 8) /* bc8 pad8 uc16 addr32 */ \ |
| V(CHECK_GT, 33, 8) /* bc8 pad8 uc16 addr32 */ \ |
| V(CHECK_NOT_BACK_REF, 34, 8) /* bc8 reg_idx24 addr32 */ \ |
| V(CHECK_NOT_BACK_REF_NO_CASE, 35, 8) /* bc8 reg_idx24 addr32 */ \ |
| V(CHECK_NOT_REGS_EQUAL, 36, 12) /* bc8 regidx24 reg_idx32 addr32 */ \ |
| V(LOOKUP_MAP1, 37, 12) /* bc8 pad8 start16 bit_map_addr32 addr32 */ \ |
| V(LOOKUP_MAP2, 38, 96) /* bc8 pad8 start16 half_nibble_map_addr32* */ \ |
| V(LOOKUP_MAP8, 39, 96) /* bc8 pad8 start16 byte_map addr32* */ \ |
| V(LOOKUP_HI_MAP8, 40, 96) /* bc8 start24 byte_map_addr32 addr32* */ \ |
| V(CHECK_REGISTER_LT, 41, 12) /* bc8 reg_idx24 value32 addr32 */ \ |
| V(CHECK_REGISTER_GE, 42, 12) /* bc8 reg_idx24 value32 addr32 */ \ |
| V(CHECK_REGISTER_EQ_POS, 43, 8) /* bc8 reg_idx24 addr32 */ \ |
| V(CHECK_AT_START, 44, 8) /* bc8 pad24 addr32 */ \ |
| V(CHECK_NOT_AT_START, 45, 8) /* bc8 pad24 addr32 */ \ |
| V(CHECK_GREEDY, 46, 8) /* bc8 pad24 addr32 */ \ |
| V(ADVANCE_CP_AND_GOTO, 47, 8) /* bc8 offset24 addr32 */ \ |
| V(SET_CURRENT_POSITION_FROM_END, 48, 4) /* bc8 idx24 */ |
| |
| #define DECLARE_BYTECODES(name, code, length) \ |
| static const int BC_##name = code; |
| BYTECODE_ITERATOR(DECLARE_BYTECODES) |
| #undef DECLARE_BYTECODES |
| |
| #define DECLARE_BYTECODE_LENGTH(name, code, length) \ |
| static const int BC_##name##_LENGTH = length; |
| BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH) |
| #undef DECLARE_BYTECODE_LENGTH |
| } } |
| |
| #endif // V8_BYTECODES_IRREGEXP_H_ |
