mirror of
https://github.com/m5stack/M5Stack_MicroPython.git
synced 2026-05-20 10:14:44 -07:00
Boris Lovosevic
b8fff81b45
'Ctrl+D' on empty line now performs full ESP32 soft reset 'math' module updated, added 'factorial' method 'uos' module updated, added 'mpycore' method to show MicroPython core git commit hash and date
69 lines
2.8 KiB
C
69 lines
2.8 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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* 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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#ifndef MICROPY_INCLUDED_PY_SMALLINT_H
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#define MICROPY_INCLUDED_PY_SMALLINT_H
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#include "py/mpconfig.h"
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#include "py/misc.h"
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// Functions for small integer arithmetic
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#ifndef MP_SMALL_INT_MIN
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// In SMALL_INT, next-to-highest bits is used as sign, so both must match for value in range
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#if MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_A || MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_C
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#define MP_SMALL_INT_MIN ((mp_int_t)(((mp_int_t)WORD_MSBIT_HIGH) >> 1))
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#define MP_SMALL_INT_FITS(n) ((((n) ^ ((n) << 1)) & WORD_MSBIT_HIGH) == 0)
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// Mask to truncate mp_int_t to positive value
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#define MP_SMALL_INT_POSITIVE_MASK ~(WORD_MSBIT_HIGH | (WORD_MSBIT_HIGH >> 1))
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#elif MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_B
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#define MP_SMALL_INT_MIN ((mp_int_t)(((mp_int_t)WORD_MSBIT_HIGH) >> 2))
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#define MP_SMALL_INT_FITS(n) ((((n) & MP_SMALL_INT_MIN) == 0) || (((n) & MP_SMALL_INT_MIN) == MP_SMALL_INT_MIN))
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// Mask to truncate mp_int_t to positive value
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#define MP_SMALL_INT_POSITIVE_MASK ~(WORD_MSBIT_HIGH | (WORD_MSBIT_HIGH >> 1) | (WORD_MSBIT_HIGH >> 2))
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#elif MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_D
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#define MP_SMALL_INT_MIN ((mp_int_t)(((mp_int_t)0xffff800000000000) >> 1))
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#define MP_SMALL_INT_FITS(n) ((((n) ^ ((n) << 1)) & 0xffff800000000000) == 0)
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// Mask to truncate mp_int_t to positive value
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#define MP_SMALL_INT_POSITIVE_MASK ~(0xffff800000000000 | (0xffff800000000000 >> 1))
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#endif
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#endif
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#define MP_SMALL_INT_MAX ((mp_int_t)(~(MP_SMALL_INT_MIN)))
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bool mp_small_int_mul_overflow(mp_int_t x, mp_int_t y);
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mp_int_t mp_small_int_modulo(mp_int_t dividend, mp_int_t divisor);
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mp_int_t mp_small_int_floor_divide(mp_int_t num, mp_int_t denom);
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#endif // MICROPY_INCLUDED_PY_SMALLINT_H
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