Zoltan Herczeg
39fe04814e
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
129 lines
4.9 KiB
C
129 lines
4.9 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMA_BIG_UINT_H
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#define ECMA_BIG_UINT_H
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#include "ecma-globals.h"
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#if ENABLED (JERRY_BUILTIN_BIGINT)
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/**
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* Limit of BigUInt memory allocation in JerryScript.
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*/
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#define ECMA_BIGINT_MAX_SIZE 0x10000
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/**
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* Unsigned type which can hold two digits.
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*/
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typedef uint64_t ecma_bigint_two_digits_t;
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/**
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* Shift used by left/right shifting of a value.
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*/
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#define ECMA_BIGINT_DIGIT_SHIFT 5
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/**
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* Return with the digits of a BigInt value.
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*/
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#define ECMA_BIGINT_GET_DIGITS(value_p, offset) \
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((ecma_bigint_digit_t *) (((uint8_t *) (value_p)) + sizeof (ecma_extended_primitive_t) + (offset)))
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/**
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* Return with the digits of a BigInt value.
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*/
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#define ECMA_BIGINT_GET_LAST_DIGIT(value_p, size) \
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*ECMA_BIGINT_GET_DIGITS (value_p, size - sizeof (ecma_bigint_digit_t))
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/**
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* Returns true if size is an odd number.
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*/
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#define ECMA_BIGINT_SIZE_IS_ODD(size) \
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(((size) & sizeof (ecma_bigint_digit_t)) != 0)
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/**
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* Returns a two digit value where the high digit is set to the passed digit.
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*/
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#define ECMA_BIGINT_HIGH_DIGIT(digit) \
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(((ecma_bigint_two_digits_t) digit) << (8 * sizeof (ecma_bigint_digit_t)))
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/**
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* Bitwise operation types.
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*/
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typedef enum
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{
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ECMA_BIG_UINT_BITWISE_AND, /**< bitwise 'and' operation */
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ECMA_BIG_UINT_BITWISE_OR, /**< bitwise 'or' operation */
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ECMA_BIG_UINT_BITWISE_XOR, /**< bitwise 'xor' operation */
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ECMA_BIG_UINT_BITWISE_AND_NOT, /**< bitwise 'and not' operation */
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} ecma_big_uint_bitwise_operation_types_t;
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/**
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* Returns with the type of the operation.
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*/
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#define ECMA_BIGINT_BITWISE_GET_OPERATION_TYPE(operation_and_options) \
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((operation_and_options) & 0xf)
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/**
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* Options for bitwise operations.
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*/
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typedef enum
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{
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ECMA_BIG_UINT_BITWISE_DECREASE_LEFT = (1 << 4), /**< subtract 1 from left value */
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ECMA_BIG_UINT_BITWISE_DECREASE_RIGHT = (1 << 5), /**< subtract 1 from right value */
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ECMA_BIG_UINT_BITWISE_INCREASE_RESULT = (1 << 6), /**< add 1 to the result */
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} ecma_big_uint_bitwise_options_t;
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/**
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* Subtract 1 from both left and right values.
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*/
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#define ECMA_BIG_UINT_BITWISE_DECREASE_BOTH \
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(ECMA_BIG_UINT_BITWISE_DECREASE_LEFT | ECMA_BIG_UINT_BITWISE_DECREASE_RIGHT)
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ecma_extended_primitive_t *ecma_bigint_create (uint32_t size);
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ecma_extended_primitive_t *ecma_big_uint_extend (ecma_extended_primitive_t *value_p, ecma_bigint_digit_t digit);
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int ecma_big_uint_compare (ecma_extended_primitive_t *left_value_p, ecma_extended_primitive_t *right_value_p);
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ecma_extended_primitive_t *ecma_big_uint_mul_digit (ecma_extended_primitive_t *value_p,
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ecma_bigint_digit_t mul, ecma_bigint_digit_t add);
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uint8_t *ecma_big_uint_to_string (ecma_extended_primitive_t *value_p, uint32_t radix,
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uint32_t *char_start_p, uint32_t *char_size_p);
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ecma_extended_primitive_t *ecma_big_uint_increase (ecma_extended_primitive_t *value_p);
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ecma_extended_primitive_t *ecma_big_uint_decrease (ecma_extended_primitive_t *value_p);
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ecma_extended_primitive_t *ecma_big_uint_add (ecma_extended_primitive_t *left_value_p,
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ecma_extended_primitive_t *right_value_p);
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ecma_extended_primitive_t *ecma_big_uint_sub (ecma_extended_primitive_t *left_value_p,
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ecma_extended_primitive_t *right_value_p);
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ecma_extended_primitive_t *ecma_big_uint_mul (ecma_extended_primitive_t *left_value_p,
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ecma_extended_primitive_t *right_value_p);
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ecma_extended_primitive_t *ecma_big_uint_div_mod (ecma_extended_primitive_t *dividend_value_p,
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ecma_extended_primitive_t *divisor_value_p,
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bool is_mod);
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ecma_extended_primitive_t *ecma_big_uint_shift_left (ecma_extended_primitive_t *left_value_p, uint32_t right_value);
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ecma_extended_primitive_t *ecma_big_uint_shift_right (ecma_extended_primitive_t *left_value_p, uint32_t right_value);
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ecma_extended_primitive_t *ecma_big_uint_bitwise_op (uint32_t operation_and_options,
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ecma_extended_primitive_t *left_value_p,
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ecma_extended_primitive_t *right_value_p);
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#endif /* ENABLED (JERRY_BUILTIN_BIGINT) */
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#endif /* ECMA_BIG_UINT_H */
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