mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 00:50:24 +08:00
59fba2d6ea
Previous to this patch each time a bytes object was referenced a new instance (with the same data) was created. With this patch a single bytes object is created in the compiler and is loaded directly at execute time as a true constant (similar to loading bignum and float objects). This saves on allocating RAM and means that bytes objects can now be used when the memory manager is locked (eg in interrupts). The MP_BC_LOAD_CONST_BYTES bytecode was removed as part of this. Generated bytecode is slightly larger due to storing a pointer to the bytes object instead of the qstr identifier. Code size is reduced by about 60 bytes on Thumb2 architectures.
120 lines
5.9 KiB
C
120 lines
5.9 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#if __clang__
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Winitializer-overrides"
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#endif // __clang__
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static void* entry_table[256] = {
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[0 ... 255] = &&entry_default,
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[MP_BC_LOAD_CONST_FALSE] = &&entry_MP_BC_LOAD_CONST_FALSE,
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[MP_BC_LOAD_CONST_NONE] = &&entry_MP_BC_LOAD_CONST_NONE,
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[MP_BC_LOAD_CONST_TRUE] = &&entry_MP_BC_LOAD_CONST_TRUE,
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[MP_BC_LOAD_CONST_SMALL_INT] = &&entry_MP_BC_LOAD_CONST_SMALL_INT,
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[MP_BC_LOAD_CONST_STRING] = &&entry_MP_BC_LOAD_CONST_STRING,
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[MP_BC_LOAD_CONST_OBJ] = &&entry_MP_BC_LOAD_CONST_OBJ,
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[MP_BC_LOAD_NULL] = &&entry_MP_BC_LOAD_NULL,
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[MP_BC_LOAD_FAST_N] = &&entry_MP_BC_LOAD_FAST_N,
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[MP_BC_LOAD_DEREF] = &&entry_MP_BC_LOAD_DEREF,
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[MP_BC_LOAD_NAME] = &&entry_MP_BC_LOAD_NAME,
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[MP_BC_LOAD_GLOBAL] = &&entry_MP_BC_LOAD_GLOBAL,
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[MP_BC_LOAD_ATTR] = &&entry_MP_BC_LOAD_ATTR,
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[MP_BC_LOAD_METHOD] = &&entry_MP_BC_LOAD_METHOD,
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[MP_BC_LOAD_BUILD_CLASS] = &&entry_MP_BC_LOAD_BUILD_CLASS,
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[MP_BC_LOAD_SUBSCR] = &&entry_MP_BC_LOAD_SUBSCR,
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[MP_BC_STORE_FAST_N] = &&entry_MP_BC_STORE_FAST_N,
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[MP_BC_STORE_DEREF] = &&entry_MP_BC_STORE_DEREF,
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[MP_BC_STORE_NAME] = &&entry_MP_BC_STORE_NAME,
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[MP_BC_STORE_GLOBAL] = &&entry_MP_BC_STORE_GLOBAL,
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[MP_BC_STORE_ATTR] = &&entry_MP_BC_STORE_ATTR,
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[MP_BC_STORE_SUBSCR] = &&entry_MP_BC_STORE_SUBSCR,
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[MP_BC_DELETE_FAST] = &&entry_MP_BC_DELETE_FAST,
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[MP_BC_DELETE_DEREF] = &&entry_MP_BC_DELETE_DEREF,
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[MP_BC_DELETE_NAME] = &&entry_MP_BC_DELETE_NAME,
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[MP_BC_DELETE_GLOBAL] = &&entry_MP_BC_DELETE_GLOBAL,
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[MP_BC_DUP_TOP] = &&entry_MP_BC_DUP_TOP,
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[MP_BC_DUP_TOP_TWO] = &&entry_MP_BC_DUP_TOP_TWO,
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[MP_BC_POP_TOP] = &&entry_MP_BC_POP_TOP,
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[MP_BC_ROT_TWO] = &&entry_MP_BC_ROT_TWO,
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[MP_BC_ROT_THREE] = &&entry_MP_BC_ROT_THREE,
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[MP_BC_JUMP] = &&entry_MP_BC_JUMP,
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[MP_BC_POP_JUMP_IF_TRUE] = &&entry_MP_BC_POP_JUMP_IF_TRUE,
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[MP_BC_POP_JUMP_IF_FALSE] = &&entry_MP_BC_POP_JUMP_IF_FALSE,
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[MP_BC_JUMP_IF_TRUE_OR_POP] = &&entry_MP_BC_JUMP_IF_TRUE_OR_POP,
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[MP_BC_JUMP_IF_FALSE_OR_POP] = &&entry_MP_BC_JUMP_IF_FALSE_OR_POP,
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[MP_BC_SETUP_WITH] = &&entry_MP_BC_SETUP_WITH,
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[MP_BC_WITH_CLEANUP] = &&entry_MP_BC_WITH_CLEANUP,
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[MP_BC_UNWIND_JUMP] = &&entry_MP_BC_UNWIND_JUMP,
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[MP_BC_SETUP_EXCEPT] = &&entry_MP_BC_SETUP_EXCEPT,
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[MP_BC_SETUP_FINALLY] = &&entry_MP_BC_SETUP_FINALLY,
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[MP_BC_END_FINALLY] = &&entry_MP_BC_END_FINALLY,
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[MP_BC_GET_ITER] = &&entry_MP_BC_GET_ITER,
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[MP_BC_FOR_ITER] = &&entry_MP_BC_FOR_ITER,
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[MP_BC_POP_BLOCK] = &&entry_MP_BC_POP_BLOCK,
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[MP_BC_POP_EXCEPT] = &&entry_MP_BC_POP_EXCEPT,
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[MP_BC_NOT] = &&entry_MP_BC_NOT,
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[MP_BC_BUILD_TUPLE] = &&entry_MP_BC_BUILD_TUPLE,
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[MP_BC_BUILD_LIST] = &&entry_MP_BC_BUILD_LIST,
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[MP_BC_LIST_APPEND] = &&entry_MP_BC_LIST_APPEND,
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[MP_BC_BUILD_MAP] = &&entry_MP_BC_BUILD_MAP,
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[MP_BC_STORE_MAP] = &&entry_MP_BC_STORE_MAP,
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[MP_BC_MAP_ADD] = &&entry_MP_BC_MAP_ADD,
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#if MICROPY_PY_BUILTINS_SET
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[MP_BC_BUILD_SET] = &&entry_MP_BC_BUILD_SET,
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[MP_BC_SET_ADD] = &&entry_MP_BC_SET_ADD,
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#endif
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#if MICROPY_PY_BUILTINS_SLICE
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[MP_BC_BUILD_SLICE] = &&entry_MP_BC_BUILD_SLICE,
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#endif
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[MP_BC_UNPACK_SEQUENCE] = &&entry_MP_BC_UNPACK_SEQUENCE,
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[MP_BC_UNPACK_EX] = &&entry_MP_BC_UNPACK_EX,
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[MP_BC_MAKE_FUNCTION] = &&entry_MP_BC_MAKE_FUNCTION,
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[MP_BC_MAKE_FUNCTION_DEFARGS] = &&entry_MP_BC_MAKE_FUNCTION_DEFARGS,
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[MP_BC_MAKE_CLOSURE] = &&entry_MP_BC_MAKE_CLOSURE,
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[MP_BC_MAKE_CLOSURE_DEFARGS] = &&entry_MP_BC_MAKE_CLOSURE_DEFARGS,
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[MP_BC_CALL_FUNCTION] = &&entry_MP_BC_CALL_FUNCTION,
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[MP_BC_CALL_FUNCTION_VAR_KW] = &&entry_MP_BC_CALL_FUNCTION_VAR_KW,
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[MP_BC_CALL_METHOD] = &&entry_MP_BC_CALL_METHOD,
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[MP_BC_CALL_METHOD_VAR_KW] = &&entry_MP_BC_CALL_METHOD_VAR_KW,
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[MP_BC_RETURN_VALUE] = &&entry_MP_BC_RETURN_VALUE,
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[MP_BC_RAISE_VARARGS] = &&entry_MP_BC_RAISE_VARARGS,
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[MP_BC_YIELD_VALUE] = &&entry_MP_BC_YIELD_VALUE,
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[MP_BC_YIELD_FROM] = &&entry_MP_BC_YIELD_FROM,
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[MP_BC_IMPORT_NAME] = &&entry_MP_BC_IMPORT_NAME,
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[MP_BC_IMPORT_FROM] = &&entry_MP_BC_IMPORT_FROM,
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[MP_BC_IMPORT_STAR] = &&entry_MP_BC_IMPORT_STAR,
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[MP_BC_LOAD_CONST_SMALL_INT_MULTI ... MP_BC_LOAD_CONST_SMALL_INT_MULTI + 63] = &&entry_MP_BC_LOAD_CONST_SMALL_INT_MULTI,
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[MP_BC_LOAD_FAST_MULTI ... MP_BC_LOAD_FAST_MULTI + 15] = &&entry_MP_BC_LOAD_FAST_MULTI,
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[MP_BC_STORE_FAST_MULTI ... MP_BC_STORE_FAST_MULTI + 15] = &&entry_MP_BC_STORE_FAST_MULTI,
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[MP_BC_UNARY_OP_MULTI ... MP_BC_UNARY_OP_MULTI + 5] = &&entry_MP_BC_UNARY_OP_MULTI,
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[MP_BC_BINARY_OP_MULTI ... MP_BC_BINARY_OP_MULTI + 35] = &&entry_MP_BC_BINARY_OP_MULTI,
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};
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#if __clang__
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#pragma clang diagnostic pop
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#endif // __clang__
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