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