549 lines
18 KiB
C
549 lines
18 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* SPDX-FileCopyrightText: 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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#include <stdio.h>
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#include <assert.h>
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#include "py/bc0.h"
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#include "py/bc.h"
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#if MICROPY_DEBUG_PRINTERS
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#define DECODE_UINT { \
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unum = 0; \
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do { \
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unum = (unum << 7) + (*ip & 0x7f); \
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} while ((*ip++ & 0x80) != 0); \
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}
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#define DECODE_ULABEL do { unum = (ip[0] | (ip[1] << 8)); ip += 2; } while (0)
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#define DECODE_SLABEL do { unum = (ip[0] | (ip[1] << 8)) - 0x8000; ip += 2; } while (0)
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#if MICROPY_PERSISTENT_CODE
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#define DECODE_QSTR \
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qst = ip[0] | ip[1] << 8; \
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ip += 2;
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#define DECODE_PTR \
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DECODE_UINT; \
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unum = mp_showbc_const_table[unum]
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#define DECODE_OBJ \
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DECODE_UINT; \
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unum = mp_showbc_const_table[unum]
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#else
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#define DECODE_QSTR { \
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qst = 0; \
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do { \
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qst = (qst << 7) + (*ip & 0x7f); \
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} while ((*ip++ & 0x80) != 0); \
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}
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#define DECODE_PTR do { \
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ip = (byte *)MP_ALIGN(ip, sizeof(void *)); \
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unum = (uintptr_t)*(void **)ip; \
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ip += sizeof(void *); \
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} while (0)
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#define DECODE_OBJ do { \
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ip = (byte *)MP_ALIGN(ip, sizeof(mp_obj_t)); \
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unum = (mp_uint_t)*(mp_obj_t *)ip; \
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ip += sizeof(mp_obj_t); \
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} while (0)
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#endif
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const byte *mp_showbc_code_start;
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const mp_uint_t *mp_showbc_const_table;
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void mp_bytecode_print(const mp_print_t *print, const void *descr, const byte *ip, mp_uint_t len, const mp_uint_t *const_table) {
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mp_showbc_code_start = ip;
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// Decode prelude
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MP_BC_PRELUDE_SIG_DECODE(ip);
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MP_BC_PRELUDE_SIZE_DECODE(ip);
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const byte *code_info = ip;
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#if MICROPY_PERSISTENT_CODE
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qstr block_name = code_info[0] | (code_info[1] << 8);
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qstr source_file = code_info[2] | (code_info[3] << 8);
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code_info += 4;
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#else
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qstr block_name = mp_decode_uint(&code_info);
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qstr source_file = mp_decode_uint(&code_info);
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#endif
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mp_printf(print, "File %s, code block '%s' (descriptor: %p, bytecode @%p " UINT_FMT " bytes)\n",
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qstr_str(source_file), qstr_str(block_name), descr, mp_showbc_code_start, len);
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// raw bytecode dump
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size_t prelude_size = ip - mp_showbc_code_start + n_info + n_cell;
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mp_printf(print, "Raw bytecode (code_info_size=%u, bytecode_size=%u):\n",
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(unsigned)prelude_size, (unsigned)(len - prelude_size));
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for (mp_uint_t i = 0; i < len; i++) {
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if (i > 0 && i % 16 == 0) {
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mp_printf(print, "\n");
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}
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mp_printf(print, " %02x", mp_showbc_code_start[i]);
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}
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mp_printf(print, "\n");
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// bytecode prelude: arg names (as qstr objects)
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mp_printf(print, "arg names:");
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for (mp_uint_t i = 0; i < n_pos_args + n_kwonly_args; i++) {
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mp_printf(print, " %s", qstr_str(MP_OBJ_QSTR_VALUE(const_table[i])));
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}
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mp_printf(print, "\n");
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mp_printf(print, "(N_STATE %u)\n", (unsigned)n_state);
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mp_printf(print, "(N_EXC_STACK %u)\n", (unsigned)n_exc_stack);
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// skip over code_info
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ip += n_info;
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// bytecode prelude: initialise closed over variables
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for (size_t i = 0; i < n_cell; ++i) {
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uint local_num = *ip++;
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mp_printf(print, "(INIT_CELL %u)\n", local_num);
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}
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// print out line number info
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{
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mp_int_t bc = 0;
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mp_uint_t source_line = 1;
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mp_printf(print, " bc=" INT_FMT " line=" UINT_FMT "\n", bc, source_line);
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for (const byte *ci = code_info; *ci;) {
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if ((ci[0] & 0x80) == 0) {
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// 0b0LLBBBBB encoding
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bc += ci[0] & 0x1f;
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source_line += ci[0] >> 5;
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ci += 1;
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} else {
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// 0b1LLLBBBB 0bLLLLLLLL encoding (l's LSB in second byte)
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bc += ci[0] & 0xf;
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source_line += ((ci[0] << 4) & 0x700) | ci[1];
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ci += 2;
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}
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mp_printf(print, " bc=" INT_FMT " line=" UINT_FMT "\n", bc, source_line);
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}
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}
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mp_bytecode_print2(print, ip, len - prelude_size, const_table);
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}
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const byte *mp_bytecode_print_str(const mp_print_t *print, const byte *ip) {
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mp_uint_t unum;
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qstr qst;
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switch (*ip++) {
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case MP_BC_LOAD_CONST_FALSE:
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mp_printf(print, "LOAD_CONST_FALSE");
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break;
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case MP_BC_LOAD_CONST_NONE:
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mp_printf(print, "LOAD_CONST_NONE");
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break;
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case MP_BC_LOAD_CONST_TRUE:
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mp_printf(print, "LOAD_CONST_TRUE");
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break;
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case MP_BC_LOAD_CONST_SMALL_INT: {
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mp_int_t num = 0;
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if ((ip[0] & 0x40) != 0) {
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// Number is negative
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num--;
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}
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do {
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num = ((mp_uint_t)num << 7) | (*ip & 0x7f);
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} while ((*ip++ & 0x80) != 0);
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mp_printf(print, "LOAD_CONST_SMALL_INT " INT_FMT, num);
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break;
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}
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case MP_BC_LOAD_CONST_STRING:
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DECODE_QSTR;
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mp_printf(print, "LOAD_CONST_STRING '%s'", qstr_str(qst));
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break;
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case MP_BC_LOAD_CONST_OBJ:
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DECODE_OBJ;
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mp_printf(print, "LOAD_CONST_OBJ %p=", MP_OBJ_TO_PTR(unum));
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mp_obj_print_helper(print, (mp_obj_t)unum, PRINT_REPR);
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break;
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case MP_BC_LOAD_NULL:
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mp_printf(print, "LOAD_NULL");
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break;
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case MP_BC_LOAD_FAST_N:
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DECODE_UINT;
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mp_printf(print, "LOAD_FAST_N " UINT_FMT, unum);
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break;
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case MP_BC_LOAD_DEREF:
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DECODE_UINT;
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mp_printf(print, "LOAD_DEREF " UINT_FMT, unum);
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break;
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case MP_BC_LOAD_NAME:
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DECODE_QSTR;
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mp_printf(print, "LOAD_NAME %s", qstr_str(qst));
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break;
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case MP_BC_LOAD_GLOBAL:
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DECODE_QSTR;
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mp_printf(print, "LOAD_GLOBAL %s", qstr_str(qst));
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break;
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case MP_BC_LOAD_ATTR:
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DECODE_QSTR;
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mp_printf(print, "LOAD_ATTR %s", qstr_str(qst));
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break;
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case MP_BC_LOAD_METHOD:
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DECODE_QSTR;
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mp_printf(print, "LOAD_METHOD %s", qstr_str(qst));
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break;
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case MP_BC_LOAD_SUPER_METHOD:
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DECODE_QSTR;
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mp_printf(print, "LOAD_SUPER_METHOD %s", qstr_str(qst));
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break;
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case MP_BC_LOAD_BUILD_CLASS:
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mp_printf(print, "LOAD_BUILD_CLASS");
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break;
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case MP_BC_LOAD_SUBSCR:
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mp_printf(print, "LOAD_SUBSCR");
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break;
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case MP_BC_STORE_FAST_N:
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DECODE_UINT;
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mp_printf(print, "STORE_FAST_N " UINT_FMT, unum);
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break;
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case MP_BC_STORE_DEREF:
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DECODE_UINT;
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mp_printf(print, "STORE_DEREF " UINT_FMT, unum);
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break;
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case MP_BC_STORE_NAME:
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DECODE_QSTR;
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mp_printf(print, "STORE_NAME %s", qstr_str(qst));
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break;
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case MP_BC_STORE_GLOBAL:
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DECODE_QSTR;
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mp_printf(print, "STORE_GLOBAL %s", qstr_str(qst));
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break;
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case MP_BC_STORE_ATTR:
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DECODE_QSTR;
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mp_printf(print, "STORE_ATTR %s", qstr_str(qst));
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break;
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case MP_BC_STORE_SUBSCR:
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mp_printf(print, "STORE_SUBSCR");
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break;
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case MP_BC_DELETE_FAST:
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DECODE_UINT;
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mp_printf(print, "DELETE_FAST " UINT_FMT, unum);
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break;
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case MP_BC_DELETE_DEREF:
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DECODE_UINT;
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mp_printf(print, "DELETE_DEREF " UINT_FMT, unum);
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break;
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case MP_BC_DELETE_NAME:
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DECODE_QSTR;
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mp_printf(print, "DELETE_NAME %s", qstr_str(qst));
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break;
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case MP_BC_DELETE_GLOBAL:
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DECODE_QSTR;
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mp_printf(print, "DELETE_GLOBAL %s", qstr_str(qst));
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break;
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case MP_BC_DUP_TOP:
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mp_printf(print, "DUP_TOP");
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break;
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case MP_BC_DUP_TOP_TWO:
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mp_printf(print, "DUP_TOP_TWO");
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break;
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case MP_BC_POP_TOP:
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mp_printf(print, "POP_TOP");
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break;
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case MP_BC_ROT_TWO:
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mp_printf(print, "ROT_TWO");
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break;
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case MP_BC_ROT_THREE:
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mp_printf(print, "ROT_THREE");
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break;
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case MP_BC_JUMP:
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DECODE_SLABEL;
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mp_printf(print, "JUMP " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_POP_JUMP_IF_TRUE:
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DECODE_SLABEL;
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mp_printf(print, "POP_JUMP_IF_TRUE " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_POP_JUMP_IF_FALSE:
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DECODE_SLABEL;
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mp_printf(print, "POP_JUMP_IF_FALSE " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_JUMP_IF_TRUE_OR_POP:
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DECODE_SLABEL;
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mp_printf(print, "JUMP_IF_TRUE_OR_POP " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_JUMP_IF_FALSE_OR_POP:
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DECODE_SLABEL;
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mp_printf(print, "JUMP_IF_FALSE_OR_POP " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_SETUP_WITH:
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DECODE_ULABEL; // loop-like labels are always forward
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mp_printf(print, "SETUP_WITH " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_WITH_CLEANUP:
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mp_printf(print, "WITH_CLEANUP");
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break;
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case MP_BC_UNWIND_JUMP:
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DECODE_SLABEL;
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mp_printf(print, "UNWIND_JUMP " UINT_FMT " %d", (mp_uint_t)(ip + unum - mp_showbc_code_start), *ip);
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ip += 1;
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break;
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case MP_BC_SETUP_EXCEPT:
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DECODE_ULABEL; // except labels are always forward
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mp_printf(print, "SETUP_EXCEPT " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_SETUP_FINALLY:
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DECODE_ULABEL; // except labels are always forward
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mp_printf(print, "SETUP_FINALLY " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_END_FINALLY:
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// if TOS is an exception, reraises the exception (3 values on TOS)
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// if TOS is an integer, does something else
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// if TOS is None, just pops it and continues
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// else error
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mp_printf(print, "END_FINALLY");
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break;
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case MP_BC_GET_ITER:
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mp_printf(print, "GET_ITER");
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break;
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case MP_BC_GET_ITER_STACK:
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mp_printf(print, "GET_ITER_STACK");
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break;
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case MP_BC_FOR_ITER:
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DECODE_ULABEL; // the jump offset if iteration finishes; for labels are always forward
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mp_printf(print, "FOR_ITER " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_POP_EXCEPT_JUMP:
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DECODE_ULABEL; // these labels are always forward
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mp_printf(print, "POP_EXCEPT_JUMP " UINT_FMT, (mp_uint_t)(ip + unum - mp_showbc_code_start));
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break;
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case MP_BC_BUILD_TUPLE:
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DECODE_UINT;
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mp_printf(print, "BUILD_TUPLE " UINT_FMT, unum);
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break;
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case MP_BC_BUILD_LIST:
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DECODE_UINT;
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mp_printf(print, "BUILD_LIST " UINT_FMT, unum);
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break;
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case MP_BC_BUILD_MAP:
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DECODE_UINT;
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mp_printf(print, "BUILD_MAP " UINT_FMT, unum);
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break;
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case MP_BC_STORE_MAP:
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mp_printf(print, "STORE_MAP");
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break;
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case MP_BC_BUILD_SET:
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DECODE_UINT;
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mp_printf(print, "BUILD_SET " UINT_FMT, unum);
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break;
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#if MICROPY_PY_BUILTINS_SLICE
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case MP_BC_BUILD_SLICE:
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DECODE_UINT;
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mp_printf(print, "BUILD_SLICE " UINT_FMT, unum);
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break;
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#endif
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case MP_BC_STORE_COMP:
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DECODE_UINT;
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mp_printf(print, "STORE_COMP " UINT_FMT, unum);
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break;
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case MP_BC_UNPACK_SEQUENCE:
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DECODE_UINT;
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mp_printf(print, "UNPACK_SEQUENCE " UINT_FMT, unum);
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break;
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case MP_BC_UNPACK_EX:
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DECODE_UINT;
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mp_printf(print, "UNPACK_EX " UINT_FMT, unum);
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break;
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case MP_BC_MAKE_FUNCTION:
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DECODE_PTR;
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mp_printf(print, "MAKE_FUNCTION %p", (void *)(uintptr_t)unum);
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break;
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case MP_BC_MAKE_FUNCTION_DEFARGS:
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DECODE_PTR;
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mp_printf(print, "MAKE_FUNCTION_DEFARGS %p", (void *)(uintptr_t)unum);
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break;
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case MP_BC_MAKE_CLOSURE: {
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DECODE_PTR;
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mp_uint_t n_closed_over = *ip++;
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mp_printf(print, "MAKE_CLOSURE %p " UINT_FMT, (void *)(uintptr_t)unum, n_closed_over);
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break;
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}
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case MP_BC_MAKE_CLOSURE_DEFARGS: {
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DECODE_PTR;
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mp_uint_t n_closed_over = *ip++;
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mp_printf(print, "MAKE_CLOSURE_DEFARGS %p " UINT_FMT, (void *)(uintptr_t)unum, n_closed_over);
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break;
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}
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case MP_BC_CALL_FUNCTION:
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DECODE_UINT;
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mp_printf(print, "CALL_FUNCTION n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff);
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break;
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case MP_BC_CALL_FUNCTION_VAR_KW:
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DECODE_UINT;
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mp_printf(print, "CALL_FUNCTION_VAR_KW n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff);
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break;
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case MP_BC_CALL_METHOD:
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DECODE_UINT;
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mp_printf(print, "CALL_METHOD n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff);
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break;
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case MP_BC_CALL_METHOD_VAR_KW:
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DECODE_UINT;
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mp_printf(print, "CALL_METHOD_VAR_KW n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff);
|
|
break;
|
|
|
|
case MP_BC_RETURN_VALUE:
|
|
mp_printf(print, "RETURN_VALUE");
|
|
break;
|
|
|
|
case MP_BC_RAISE_LAST:
|
|
mp_printf(print, "RAISE_LAST");
|
|
break;
|
|
|
|
case MP_BC_RAISE_OBJ:
|
|
mp_printf(print, "RAISE_OBJ");
|
|
break;
|
|
|
|
case MP_BC_RAISE_FROM:
|
|
mp_printf(print, "RAISE_FROM");
|
|
break;
|
|
|
|
case MP_BC_YIELD_VALUE:
|
|
mp_printf(print, "YIELD_VALUE");
|
|
break;
|
|
|
|
case MP_BC_YIELD_FROM:
|
|
mp_printf(print, "YIELD_FROM");
|
|
break;
|
|
|
|
case MP_BC_IMPORT_NAME:
|
|
DECODE_QSTR;
|
|
mp_printf(print, "IMPORT_NAME '%s'", qstr_str(qst));
|
|
break;
|
|
|
|
case MP_BC_IMPORT_FROM:
|
|
DECODE_QSTR;
|
|
mp_printf(print, "IMPORT_FROM '%s'", qstr_str(qst));
|
|
break;
|
|
|
|
case MP_BC_IMPORT_STAR:
|
|
mp_printf(print, "IMPORT_STAR");
|
|
break;
|
|
|
|
default:
|
|
if (ip[-1] < MP_BC_LOAD_CONST_SMALL_INT_MULTI + 64) {
|
|
mp_printf(print, "LOAD_CONST_SMALL_INT " INT_FMT, (mp_int_t)ip[-1] - MP_BC_LOAD_CONST_SMALL_INT_MULTI - 16);
|
|
} else if (ip[-1] < MP_BC_LOAD_FAST_MULTI + 16) {
|
|
mp_printf(print, "LOAD_FAST " UINT_FMT, (mp_uint_t)ip[-1] - MP_BC_LOAD_FAST_MULTI);
|
|
} else if (ip[-1] < MP_BC_STORE_FAST_MULTI + 16) {
|
|
mp_printf(print, "STORE_FAST " UINT_FMT, (mp_uint_t)ip[-1] - MP_BC_STORE_FAST_MULTI);
|
|
} else if (ip[-1] < MP_BC_UNARY_OP_MULTI + MP_UNARY_OP_NUM_BYTECODE) {
|
|
mp_uint_t op = ip[-1] - MP_BC_UNARY_OP_MULTI;
|
|
mp_printf(print, "UNARY_OP " UINT_FMT " %s", op, qstr_str(mp_unary_op_method_name[op]));
|
|
} else if (ip[-1] < MP_BC_BINARY_OP_MULTI + MP_BINARY_OP_NUM_BYTECODE) {
|
|
mp_uint_t op = ip[-1] - MP_BC_BINARY_OP_MULTI;
|
|
mp_printf(print, "BINARY_OP " UINT_FMT " %s", op, qstr_str(mp_binary_op_method_name[op]));
|
|
} else {
|
|
mp_printf(print, "code %p, byte code 0x%02x not implemented\n", ip - 1, ip[-1]);
|
|
assert(0);
|
|
return ip;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ip;
|
|
}
|
|
|
|
void mp_bytecode_print2(const mp_print_t *print, const byte *ip, size_t len, const mp_uint_t *const_table) {
|
|
mp_showbc_code_start = ip;
|
|
mp_showbc_const_table = const_table;
|
|
while (ip < len + mp_showbc_code_start) {
|
|
mp_printf(print, "%02u ", (uint)(ip - mp_showbc_code_start));
|
|
ip = mp_bytecode_print_str(print, ip);
|
|
mp_printf(print, "\n");
|
|
}
|
|
}
|
|
|
|
#endif // MICROPY_DEBUG_PRINTERS
|