mirror of
https://github.com/licsber/micropython.git
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d99b05282d
A big change. Micro Python objects are allocated as individual structs with the first element being a pointer to the type information (which is itself an object). This scheme follows CPython. Much more flexible, not necessarily slower, uses same heap memory, and can allocate objects statically. Also change name prefix, from py_ to mp_ (mp for Micro Python).
140 lines
6.9 KiB
C
140 lines
6.9 KiB
C
/* Notes on passes:
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* We don't know exactly the opcodes in pass 1 because they depend on the
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* closing over of variables (LOAD_CLOSURE, BUILD_TUPLE, MAKE_CLOSURE), which
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* depends on determining the scope of variables in each function, and this
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* is not known until the end of pass 1.
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* As a consequence, we don't know the maximum stack size until the end of pass 2.
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* This is problematic for some emitters (x64) since they need to know the maximum
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* stack size to compile the entry to the function, and this effects code size.
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*/
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typedef enum {
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PASS_1 = 1, // work out id's and their kind, and number of labels
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PASS_2 = 2, // work out stack size and code size and label offsets
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PASS_3 = 3, // emit code
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} pass_kind_t;
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typedef struct _emit_t emit_t;
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typedef struct _emit_method_table_t {
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void (*set_native_types)(emit_t *emit, bool do_native_types);
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void (*start_pass)(emit_t *emit, pass_kind_t pass, scope_t *scope);
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void (*end_pass)(emit_t *emit);
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bool (*last_emit_was_return_value)(emit_t *emit);
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int (*get_stack_size)(emit_t *emit);
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void (*set_stack_size)(emit_t *emit, int size);
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void (*load_id)(emit_t *emit, qstr qstr);
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void (*store_id)(emit_t *emit, qstr qstr);
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void (*delete_id)(emit_t *emit, qstr qstr);
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void (*label_assign)(emit_t *emit, int l);
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void (*import_name)(emit_t *emit, qstr qstr);
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void (*import_from)(emit_t *emit, qstr qstr);
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void (*import_star)(emit_t *emit);
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void (*load_const_tok)(emit_t *emit, mp_token_kind_t tok);
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void (*load_const_small_int)(emit_t *emit, int arg);
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void (*load_const_int)(emit_t *emit, qstr qstr);
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void (*load_const_dec)(emit_t *emit, qstr qstr);
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void (*load_const_id)(emit_t *emit, qstr qstr);
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void (*load_const_str)(emit_t *emit, qstr qstr, bool bytes);
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void (*load_const_verbatim_str)(emit_t *emit, const char *str); // only needed for emitcpy
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void (*load_fast)(emit_t *emit, qstr qstr, int local_num);
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void (*load_deref)(emit_t *emit, qstr qstr, int local_num);
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void (*load_closure)(emit_t *emit, qstr qstr, int local_num);
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void (*load_name)(emit_t *emit, qstr qstr);
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void (*load_global)(emit_t *emit, qstr qstr);
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void (*load_attr)(emit_t *emit, qstr qstr);
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void (*load_method)(emit_t *emit, qstr qstr);
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void (*load_build_class)(emit_t *emit);
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void (*store_fast)(emit_t *emit, qstr qstr, int local_num);
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void (*store_deref)(emit_t *emit, qstr qstr, int local_num);
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void (*store_name)(emit_t *emit, qstr qstr);
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void (*store_global)(emit_t *emit, qstr qstr);
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void (*store_attr)(emit_t *emit, qstr qstr);
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void (*store_subscr)(emit_t *emit);
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void (*store_locals)(emit_t *emit);
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void (*delete_fast)(emit_t *emit, qstr qstr, int local_num);
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void (*delete_deref)(emit_t *emit, qstr qstr, int local_num);
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void (*delete_name)(emit_t *emit, qstr qstr);
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void (*delete_global)(emit_t *emit, qstr qstr);
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void (*delete_attr)(emit_t *emit, qstr qstr);
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void (*delete_subscr)(emit_t *emit);
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void (*dup_top)(emit_t *emit);
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void (*dup_top_two)(emit_t *emit);
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void (*pop_top)(emit_t *emit);
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void (*rot_two)(emit_t *emit);
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void (*rot_three)(emit_t *emit);
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void (*jump)(emit_t *emit, int label);
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void (*pop_jump_if_true)(emit_t *emit, int label);
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void (*pop_jump_if_false)(emit_t *emit, int label);
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void (*jump_if_true_or_pop)(emit_t *emit, int label);
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void (*jump_if_false_or_pop)(emit_t *emit, int label);
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void (*setup_loop)(emit_t *emit, int label);
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void (*break_loop)(emit_t *emit, int label);
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void (*continue_loop)(emit_t *emit, int label);
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void (*setup_with)(emit_t *emit, int label);
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void (*with_cleanup)(emit_t *emit);
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void (*setup_except)(emit_t *emit, int label);
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void (*setup_finally)(emit_t *emit, int label);
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void (*end_finally)(emit_t *emit);
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void (*get_iter)(emit_t *emit); // tos = getiter(tos)
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void (*for_iter)(emit_t *emit, int label);
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void (*for_iter_end)(emit_t *emit);
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void (*pop_block)(emit_t *emit);
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void (*pop_except)(emit_t *emit);
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void (*unary_op)(emit_t *emit, rt_unary_op_t op);
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void (*binary_op)(emit_t *emit, rt_binary_op_t op);
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void (*compare_op)(emit_t *emit, rt_compare_op_t op);
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void (*build_tuple)(emit_t *emit, int n_args);
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void (*build_list)(emit_t *emit, int n_args);
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void (*list_append)(emit_t *emit, int list_stack_index);
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void (*build_map)(emit_t *emit, int n_args);
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void (*store_map)(emit_t *emit);
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void (*map_add)(emit_t *emit, int map_stack_index);
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void (*build_set)(emit_t *emit, int n_args);
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void (*set_add)(emit_t *emit, int set_stack_index);
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void (*build_slice)(emit_t *emit, int n_args);
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void (*unpack_sequence)(emit_t *emit, int n_args);
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void (*unpack_ex)(emit_t *emit, int n_left, int n_right);
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void (*make_function)(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params);
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void (*make_closure)(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params);
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void (*call_function)(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg);
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void (*call_method)(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg);
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void (*return_value)(emit_t *emit);
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void (*raise_varargs)(emit_t *emit, int n_args);
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void (*yield_value)(emit_t *emit);
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void (*yield_from)(emit_t *emit);
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} emit_method_table_t;
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void emit_common_load_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr);
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void emit_common_store_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr);
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void emit_common_delete_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr);
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extern const emit_method_table_t emit_pass1_method_table;
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extern const emit_method_table_t emit_cpython_method_table;
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extern const emit_method_table_t emit_bc_method_table;
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extern const emit_method_table_t emit_native_x64_method_table;
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extern const emit_method_table_t emit_native_thumb_method_table;
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emit_t *emit_pass1_new(qstr qstr___class__);
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void emit_pass1_free(emit_t *emit);
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emit_t *emit_cpython_new(uint max_num_labels);
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emit_t *emit_bc_new(uint max_num_labels);
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emit_t *emit_native_x64_new(uint max_num_labels);
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emit_t *emit_native_thumb_new(uint max_num_labels);
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typedef struct _emit_inline_asm_t emit_inline_asm_t;
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typedef struct _emit_inline_asm_method_table_t {
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void (*start_pass)(emit_inline_asm_t *emit, pass_kind_t pass, scope_t *scope);
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void (*end_pass)(emit_inline_asm_t *emit);
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int (*count_params)(emit_inline_asm_t *emit, int n_params, mp_parse_node_t *pn_params);
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void (*label)(emit_inline_asm_t *emit, int label_num, qstr label_id);
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void (*op)(emit_inline_asm_t *emit, qstr op, int n_args, mp_parse_node_t *pn_args);
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} emit_inline_asm_method_table_t;
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extern const emit_inline_asm_method_table_t emit_inline_thumb_method_table;
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emit_inline_asm_t *emit_inline_thumb_new(uint max_num_labels);
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