1 // Copyright 2008-2009 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 29 #ifndef V8_BYTECODES_IRREGEXP_H_ 30 #define V8_BYTECODES_IRREGEXP_H_ 31 32 namespace v8 { 33 namespace internal { 34 35 36 static const int BYTECODE_MASK = 0xff; 37 // The first argument is packed in with the byte code in one word, but so it 38 // has 24 bits, but it can be positive and negative so only use 23 bits for 39 // positive values. 40 static const unsigned int MAX_FIRST_ARG = 0x7fffffu; 41 static const int BYTECODE_SHIFT = 8; 42 43 #define BYTECODE_ITERATOR(V) \ 44 V(BREAK, 0, 4) /* bc8 */ \ 45 V(PUSH_CP, 1, 4) /* bc8 pad24 */ \ 46 V(PUSH_BT, 2, 8) /* bc8 pad24 offset32 */ \ 47 V(PUSH_REGISTER, 3, 4) /* bc8 reg_idx24 */ \ 48 V(SET_REGISTER_TO_CP, 4, 8) /* bc8 reg_idx24 offset32 */ \ 49 V(SET_CP_TO_REGISTER, 5, 4) /* bc8 reg_idx24 */ \ 50 V(SET_REGISTER_TO_SP, 6, 4) /* bc8 reg_idx24 */ \ 51 V(SET_SP_TO_REGISTER, 7, 4) /* bc8 reg_idx24 */ \ 52 V(SET_REGISTER, 8, 8) /* bc8 reg_idx24 value32 */ \ 53 V(ADVANCE_REGISTER, 9, 8) /* bc8 reg_idx24 value32 */ \ 54 V(POP_CP, 10, 4) /* bc8 pad24 */ \ 55 V(POP_BT, 11, 4) /* bc8 pad24 */ \ 56 V(POP_REGISTER, 12, 4) /* bc8 reg_idx24 */ \ 57 V(FAIL, 13, 4) /* bc8 pad24 */ \ 58 V(SUCCEED, 14, 4) /* bc8 pad24 */ \ 59 V(ADVANCE_CP, 15, 4) /* bc8 offset24 */ \ 60 V(GOTO, 16, 8) /* bc8 pad24 addr32 */ \ 61 V(LOAD_CURRENT_CHAR, 17, 8) /* bc8 offset24 addr32 */ \ 62 V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24 */ \ 63 V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32 */ \ 64 V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24 */ \ 65 V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32 */ \ 66 V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24 */ \ 67 V(CHECK_4_CHARS, 23, 12) /* bc8 pad24 uint32 addr32 */ \ 68 V(CHECK_CHAR, 24, 8) /* bc8 pad8 uint16 addr32 */ \ 69 V(CHECK_NOT_4_CHARS, 25, 12) /* bc8 pad24 uint32 addr32 */ \ 70 V(CHECK_NOT_CHAR, 26, 8) /* bc8 pad8 uint16 addr32 */ \ 71 V(AND_CHECK_4_CHARS, 27, 16) /* bc8 pad24 uint32 uint32 addr32 */ \ 72 V(AND_CHECK_CHAR, 28, 12) /* bc8 pad8 uint16 uint32 addr32 */ \ 73 V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32 */ \ 74 V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32 */ \ 75 V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 addr32 */ \ 76 V(CHECK_LT, 32, 8) /* bc8 pad8 uc16 addr32 */ \ 77 V(CHECK_GT, 33, 8) /* bc8 pad8 uc16 addr32 */ \ 78 V(CHECK_NOT_BACK_REF, 34, 8) /* bc8 reg_idx24 addr32 */ \ 79 V(CHECK_NOT_BACK_REF_NO_CASE, 35, 8) /* bc8 reg_idx24 addr32 */ \ 80 V(CHECK_NOT_REGS_EQUAL, 36, 12) /* bc8 regidx24 reg_idx32 addr32 */ \ 81 V(LOOKUP_MAP1, 37, 12) /* bc8 pad8 start16 bit_map_addr32 addr32 */ \ 82 V(LOOKUP_MAP2, 38, 96) /* bc8 pad8 start16 half_nibble_map_addr32* */ \ 83 V(LOOKUP_MAP8, 39, 96) /* bc8 pad8 start16 byte_map addr32* */ \ 84 V(LOOKUP_HI_MAP8, 40, 96) /* bc8 start24 byte_map_addr32 addr32* */ \ 85 V(CHECK_REGISTER_LT, 41, 12) /* bc8 reg_idx24 value32 addr32 */ \ 86 V(CHECK_REGISTER_GE, 42, 12) /* bc8 reg_idx24 value32 addr32 */ \ 87 V(CHECK_REGISTER_EQ_POS, 43, 8) /* bc8 reg_idx24 addr32 */ \ 88 V(CHECK_AT_START, 44, 8) /* bc8 pad24 addr32 */ \ 89 V(CHECK_NOT_AT_START, 45, 8) /* bc8 pad24 addr32 */ \ 90 V(CHECK_GREEDY, 46, 8) /* bc8 pad24 addr32 */ \ 91 V(ADVANCE_CP_AND_GOTO, 47, 8) /* bc8 offset24 addr32 */ 92 93 #define DECLARE_BYTECODES(name, code, length) \ 94 static const int BC_##name = code; 95 BYTECODE_ITERATOR(DECLARE_BYTECODES) 96 #undef DECLARE_BYTECODES 97 98 #define DECLARE_BYTECODE_LENGTH(name, code, length) \ 99 static const int BC_##name##_LENGTH = length; 100 BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH) 101 #undef DECLARE_BYTECODE_LENGTH 102 } } 103 104 #endif // V8_BYTECODES_IRREGEXP_H_ 105
