head 1.2; access; symbols micropython-1-5-2-base:1.1.1.1 MICROPYTHON:1.1.1; locks; strict; comment @ * @; 1.2 date 2026.10.15.05.28.40; author agc; state dead; branches; next 1.1; commitid aHLdC1EGCUYk7xZG; 1.1 date 2016.01.14.01.38.50; author agc; state Exp; branches 1.1.1.1; next ; commitid Q8liT0v6zMF95QQy; 1.1.1.1 date 2016.01.14.01.38.50; author agc; state Exp; branches; next ; commitid Q8liT0v6zMF95QQy; desc @@ 1.2 log @Remove waaaay old micropython sources which haven't been relevant for 10 years @ text @/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2013, 2014 Damien P. George * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include #include #include #include "py/nlr.h" #include "py/parsenum.h" #include "py/smallint.h" #include "py/objint.h" #include "py/objstr.h" #include "py/runtime0.h" #include "py/runtime.h" #include "py/binary.h" #if MICROPY_PY_BUILTINS_FLOAT #include #endif // This dispatcher function is expected to be independent of the implementation of long int STATIC mp_obj_t mp_obj_int_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { (void)type_in; mp_arg_check_num(n_args, n_kw, 0, 2, false); switch (n_args) { case 0: return MP_OBJ_NEW_SMALL_INT(0); case 1: if (MP_OBJ_IS_INT(args[0])) { // already an int (small or long), just return it return args[0]; } else if (MP_OBJ_IS_STR_OR_BYTES(args[0])) { // a string, parse it mp_uint_t l; const char *s = mp_obj_str_get_data(args[0], &l); return mp_parse_num_integer(s, l, 0, NULL); #if MICROPY_PY_BUILTINS_FLOAT } else if (mp_obj_is_float(args[0])) { return mp_obj_new_int_from_float(mp_obj_float_get(args[0])); #endif } else { // try to convert to small int (eg from bool) return MP_OBJ_NEW_SMALL_INT(mp_obj_get_int(args[0])); } case 2: default: { // should be a string, parse it // TODO proper error checking of argument types mp_uint_t l; const char *s = mp_obj_str_get_data(args[0], &l); return mp_parse_num_integer(s, l, mp_obj_get_int(args[1]), NULL); } } } #if MICROPY_PY_BUILTINS_FLOAT mp_fp_as_int_class_t mp_classify_fp_as_int(mp_float_t val) { union { mp_float_t f; #if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT uint32_t i; #elif MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE uint32_t i[2]; #endif } u = {val}; uint32_t e; #if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT e = u.i; #elif MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE e = u.i[MP_ENDIANNESS_LITTLE]; #endif #define MP_FLOAT_SIGN_SHIFT_I32 ((MP_FLOAT_FRAC_BITS + MP_FLOAT_EXP_BITS) % 32) #define MP_FLOAT_EXP_SHIFT_I32 (MP_FLOAT_FRAC_BITS % 32) if (e & (1 << MP_FLOAT_SIGN_SHIFT_I32)) { #if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE e |= u.i[MP_ENDIANNESS_BIG] != 0; #endif e += ((1 << MP_FLOAT_EXP_BITS) - 1) << MP_FLOAT_EXP_SHIFT_I32; } else { e &= ~((1 << MP_FLOAT_EXP_SHIFT_I32) - 1); } if (e <= ((BITS_PER_WORD + MP_FLOAT_EXP_BIAS - 3) << MP_FLOAT_EXP_SHIFT_I32)) { return MP_FP_CLASS_FIT_SMALLINT; } #if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG if (e <= (((sizeof(long long) * BITS_PER_BYTE) + MP_FLOAT_EXP_BIAS - 2) << MP_FLOAT_EXP_SHIFT_I32)) { return MP_FP_CLASS_FIT_LONGINT; } #endif #if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_MPZ return MP_FP_CLASS_FIT_LONGINT; #else return MP_FP_CLASS_OVERFLOW; #endif } #undef MP_FLOAT_SIGN_SHIFT_I32 #undef MP_FLOAT_EXP_SHIFT_I32 #endif void mp_obj_int_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { (void)kind; // The size of this buffer is rather arbitrary. If it's not large // enough, a dynamic one will be allocated. char stack_buf[sizeof(mp_int_t) * 4]; char *buf = stack_buf; mp_uint_t buf_size = sizeof(stack_buf); mp_uint_t fmt_size; char *str = mp_obj_int_formatted(&buf, &buf_size, &fmt_size, self_in, 10, NULL, '\0', '\0'); mp_print_str(print, str); if (buf != stack_buf) { m_del(char, buf, buf_size); } } #if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG typedef mp_longint_impl_t fmt_int_t; #else typedef mp_int_t fmt_int_t; #endif STATIC const uint8_t log_base2_floor[] = { 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5 }; STATIC uint int_as_str_size_formatted(uint base, const char *prefix, char comma) { if (base < 2 || base > 32) { return 0; } uint num_digits = sizeof(fmt_int_t) * 8 / log_base2_floor[base] + 1; uint num_commas = comma ? num_digits / 3: 0; uint prefix_len = prefix ? strlen(prefix) : 0; return num_digits + num_commas + prefix_len + 2; // +1 for sign, +1 for null byte } // This routine expects you to pass in a buffer and size (in *buf and *buf_size). // If, for some reason, this buffer is too small, then it will allocate a // buffer and return the allocated buffer and size in *buf and *buf_size. It // is the callers responsibility to free this allocated buffer. // // The resulting formatted string will be returned from this function and the // formatted size will be in *fmt_size. char *mp_obj_int_formatted(char **buf, mp_uint_t *buf_size, mp_uint_t *fmt_size, mp_const_obj_t self_in, int base, const char *prefix, char base_char, char comma) { fmt_int_t num; if (MP_OBJ_IS_SMALL_INT(self_in)) { // A small int; get the integer value to format. num = mp_obj_get_int(self_in); #if MICROPY_LONGINT_IMPL != MICROPY_LONGINT_IMPL_NONE } else if (MP_OBJ_IS_TYPE(self_in, &mp_type_int)) { // Not a small int. #if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG const mp_obj_int_t *self = self_in; // Get the value to format; mp_obj_get_int truncates to mp_int_t. num = self->val; #else // Delegate to the implementation for the long int. return mp_obj_int_formatted_impl(buf, buf_size, fmt_size, self_in, base, prefix, base_char, comma); #endif #endif } else { // Not an int. **buf = '\0'; *fmt_size = 0; return *buf; } char sign = '\0'; if (num < 0) { num = -num; sign = '-'; } uint needed_size = int_as_str_size_formatted(base, prefix, comma); if (needed_size > *buf_size) { *buf = m_new(char, needed_size); *buf_size = needed_size; } char *str = *buf; char *b = str + needed_size; *(--b) = '\0'; char *last_comma = b; if (num == 0) { *(--b) = '0'; } else { do { int c = num % base; num /= base; if (c >= 10) { c += base_char - 10; } else { c += '0'; } *(--b) = c; if (comma && num != 0 && b > str && (last_comma - b) == 3) { *(--b) = comma; last_comma = b; } } while (b > str && num != 0); } if (prefix) { size_t prefix_len = strlen(prefix); char *p = b - prefix_len; if (p > str) { b = p; while (*prefix) { *p++ = *prefix++; } } } if (sign && b > str) { *(--b) = sign; } *fmt_size = *buf + needed_size - b - 1; return b; } #if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE bool mp_obj_int_is_positive(mp_obj_t self_in) { return mp_obj_get_int(self_in) >= 0; } // This must handle int and bool types, and must raise a // TypeError if the argument is not integral mp_obj_t mp_obj_int_abs(mp_obj_t self_in) { mp_int_t val = mp_obj_get_int(self_in); if (val < 0) { val = -val; } return MP_OBJ_NEW_SMALL_INT(val); } // This is called for operations on SMALL_INT that are not handled by mp_unary_op mp_obj_t mp_obj_int_unary_op(mp_uint_t op, mp_obj_t o_in) { return MP_OBJ_NULL; // op not supported } // This is called for operations on SMALL_INT that are not handled by mp_binary_op mp_obj_t mp_obj_int_binary_op(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) { return mp_obj_int_binary_op_extra_cases(op, lhs_in, rhs_in); } // This is called only with strings whose value doesn't fit in SMALL_INT mp_obj_t mp_obj_new_int_from_str_len(const char **str, mp_uint_t len, bool neg, mp_uint_t base) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "long int not supported in this build")); return mp_const_none; } // This is called when an integer larger than a SMALL_INT is needed (although val might still fit in a SMALL_INT) mp_obj_t mp_obj_new_int_from_ll(long long val) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow")); return mp_const_none; } // This is called when an integer larger than a SMALL_INT is needed (although val might still fit in a SMALL_INT) mp_obj_t mp_obj_new_int_from_ull(unsigned long long val) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow")); return mp_const_none; } mp_obj_t mp_obj_new_int_from_uint(mp_uint_t value) { // SMALL_INT accepts only signed numbers, of one bit less size // then word size, which totals 2 bits less for unsigned numbers. if ((value & (WORD_MSBIT_HIGH | (WORD_MSBIT_HIGH >> 1))) == 0) { return MP_OBJ_NEW_SMALL_INT(value); } nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow")); return mp_const_none; } #if MICROPY_PY_BUILTINS_FLOAT mp_obj_t mp_obj_new_int_from_float(mp_float_t val) { int cl = fpclassify(val); if (cl == FP_INFINITE) { nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OverflowError, "can't convert inf to int")); } else if (cl == FP_NAN) { nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "can't convert NaN to int")); } else { mp_fp_as_int_class_t icl = mp_classify_fp_as_int(val); if (icl == MP_FP_CLASS_FIT_SMALLINT) { return MP_OBJ_NEW_SMALL_INT((mp_int_t)val); } else { nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "float too big")); } } } #endif mp_obj_t mp_obj_new_int(mp_int_t value) { if (MP_SMALL_INT_FITS(value)) { return MP_OBJ_NEW_SMALL_INT(value); } nlr_raise(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow")); return mp_const_none; } mp_int_t mp_obj_int_get_truncated(mp_const_obj_t self_in) { return MP_OBJ_SMALL_INT_VALUE(self_in); } mp_int_t mp_obj_int_get_checked(mp_const_obj_t self_in) { return MP_OBJ_SMALL_INT_VALUE(self_in); } #if MICROPY_PY_BUILTINS_FLOAT mp_float_t mp_obj_int_as_float(mp_obj_t self_in) { return MP_OBJ_SMALL_INT_VALUE(self_in); } #endif #endif // MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE // This dispatcher function is expected to be independent of the implementation of long int // It handles the extra cases for integer-like arithmetic mp_obj_t mp_obj_int_binary_op_extra_cases(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) { if (rhs_in == mp_const_false) { // false acts as 0 return mp_binary_op(op, lhs_in, MP_OBJ_NEW_SMALL_INT(0)); } else if (rhs_in == mp_const_true) { // true acts as 0 return mp_binary_op(op, lhs_in, MP_OBJ_NEW_SMALL_INT(1)); } else if (op == MP_BINARY_OP_MULTIPLY) { if (MP_OBJ_IS_STR(rhs_in) || MP_OBJ_IS_TYPE(rhs_in, &mp_type_bytes) || MP_OBJ_IS_TYPE(rhs_in, &mp_type_tuple) || MP_OBJ_IS_TYPE(rhs_in, &mp_type_list)) { // multiply is commutative for these types, so delegate to them return mp_binary_op(op, rhs_in, lhs_in); } } return MP_OBJ_NULL; // op not supported } // this is a classmethod STATIC mp_obj_t int_from_bytes(mp_uint_t n_args, const mp_obj_t *args) { // TODO: Support long ints // TODO: Support byteorder param (assumes 'little' at the moment) // TODO: Support signed param (assumes signed=False at the moment) (void)n_args; // get the buffer info mp_buffer_info_t bufinfo; mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_READ); // convert the bytes to an integer mp_uint_t value = 0; for (const byte* buf = (const byte*)bufinfo.buf + bufinfo.len - 1; buf >= (byte*)bufinfo.buf; buf--) { value = (value << 8) | *buf; } return mp_obj_new_int_from_uint(value); } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(int_from_bytes_fun_obj, 2, 3, int_from_bytes); STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(int_from_bytes_obj, MP_ROM_PTR(&int_from_bytes_fun_obj)); STATIC mp_obj_t int_to_bytes(mp_uint_t n_args, const mp_obj_t *args) { // TODO: Support byteorder param (assumes 'little') // TODO: Support signed param (assumes signed=False) (void)n_args; mp_uint_t len = MP_OBJ_SMALL_INT_VALUE(args[1]); vstr_t vstr; vstr_init_len(&vstr, len); byte *data = (byte*)vstr.buf; memset(data, 0, len); #if MICROPY_LONGINT_IMPL != MICROPY_LONGINT_IMPL_NONE if (!MP_OBJ_IS_SMALL_INT(args[0])) { mp_obj_int_to_bytes_impl(args[0], false, len, data); } else #endif { mp_int_t val = MP_OBJ_SMALL_INT_VALUE(args[0]); mp_binary_set_int(MIN((size_t)len, sizeof(val)), false, data, val); } return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr); } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(int_to_bytes_obj, 2, 4, int_to_bytes); STATIC const mp_rom_map_elem_t int_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_from_bytes), MP_ROM_PTR(&int_from_bytes_obj) }, { MP_ROM_QSTR(MP_QSTR_to_bytes), MP_ROM_PTR(&int_to_bytes_obj) }, }; STATIC MP_DEFINE_CONST_DICT(int_locals_dict, int_locals_dict_table); const mp_obj_type_t mp_type_int = { { &mp_type_type }, .name = MP_QSTR_int, .print = mp_obj_int_print, .make_new = mp_obj_int_make_new, .unary_op = mp_obj_int_unary_op, .binary_op = mp_obj_int_binary_op, .locals_dict = (mp_obj_dict_t*)&int_locals_dict, }; @ 1.1 log @Initial revision @ text @@ 1.1.1.1 log @Import micropython version 1.5.2 into othersrc. Micropython is a python3 implementation that has been optimised for micro-controllers and small embedded systems. It also has a "unix" port. It has an MIT license. This is version 1.5.2 of micropython. MicroPython implements the entire Python 3.4 syntax (including exceptions, "with", "yield from", etc.). The following core datatypes are provided: str (including basic Unicode support), bytes, bytearray, tuple, list, dict, set, frozenset, array.array, collections.namedtuple, classes and instances. Builtin modules include sys, time, and struct. Note that only subset of Python 3.4 functionality implemented for the data types and modules. This is the standard micropython source (version v1.5.2), which has been adapted to use reachover infrastructure. At the present time, libffi (from pkgsrc) is used. Alternative locations for libffi can be set using the PKGSRC_PREFIX definition to make. In the whole scheme of things, micropython is quite small: % size bin/micropython text data bss dec hex filename 393495 1624 2208 397327 6100f bin/micropython % and runs much as expected: % bin/micropython MicroPython v1.5.2 on 2016-01-13; linux version Use Ctrl-D to exit, Ctrl-E for paste mode >>> print("hello world") hello world >>> list(5 * x + y for x in range(10) for y in [4, 2, 1]) [4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46] >>> % python2.7 Python 2.7.10 (default, Oct 17 2015, 17:55:29) [GCC 4.8.5] on netbsd7 Type "help", "copyright", "credits" or "license" for more information. >>> print("hello world") hello world >>> list(5 * x + y for x in range(10) for y in [4, 2, 1]) [4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46] >>> ^D % This (reachover) version runs all the tests which the gmake version does. % make t cd bin && make t cd /home/agc/local/micropython/bin/../dist/unix/../tests && env MICROPY_MICROPYTHON=/home/agc/local/micropython/bin/micropython ./run-tests pass basics/0prelim.py pass basics/andor.py pass basics/array1.py pass basics/array_add.py pass basics/array_construct.py pass basics/array_construct2.py ... pass unix/ffi_callback.py pass unix/ffi_float.py pass unix/ffi_float2.py 474 tests performed (15812 individual testcases) 474 tests passed 5 tests skipped: cmd_showbc cmd_verbose machine1 machine_mem extra_coverage % The sources are available from github: https://github.com/micropython/micropython micropython release at: https://github.com/micropython/micropython/releases Sources for 1.5.2 taken from: https://github.com/micropython/micropython/archive/v1.5.2.tar.gz Alistair Crooks agc@@netbsd.org Wed Jan 13 17:15:30 PST 2016 @ text @@