63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
/*******************************************************************************
|
|
* Ledger Ethereum App
|
|
* (c) 2016-2019 Ledger
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
********************************************************************************/
|
|
|
|
// Adapted from https://github.com/calccrypto/uint256_t
|
|
|
|
#ifndef _UINT128_H_
|
|
#define _UINT128_H_
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
typedef struct uint128_t {
|
|
uint64_t elements[2];
|
|
} uint128_t;
|
|
|
|
void readu128BE(const uint8_t *const buffer, uint128_t *const target);
|
|
bool zero128(const uint128_t *const number);
|
|
void copy128(uint128_t *const target, const uint128_t *const number);
|
|
void clear128(uint128_t *const target);
|
|
void shiftl128(const uint128_t *const number, uint32_t value, uint128_t *const target);
|
|
void shiftr128(const uint128_t *const number, uint32_t value, uint128_t *const target);
|
|
uint32_t bits128(const uint128_t *const number);
|
|
bool equal128(const uint128_t *const number1, const uint128_t *const number2);
|
|
bool gt128(const uint128_t *const number1, const uint128_t *const number2);
|
|
bool gte128(const uint128_t *const number1, const uint128_t *const number2);
|
|
void add128(const uint128_t *const number1,
|
|
const uint128_t *const number2,
|
|
uint128_t *const target);
|
|
void sub128(const uint128_t *const number1,
|
|
const uint128_t *const number2,
|
|
uint128_t *const target);
|
|
void or128(const uint128_t *const number1, const uint128_t *const number2, uint128_t *const target);
|
|
void mul128(const uint128_t *const number1,
|
|
const uint128_t *const number2,
|
|
uint128_t *const target);
|
|
void divmod128(const uint128_t *const l,
|
|
const uint128_t *const r,
|
|
uint128_t *const div,
|
|
uint128_t *const mod);
|
|
bool tostring128(const uint128_t *const number, uint32_t base, char *const out, uint32_t outLength);
|
|
bool tostring128_signed(const uint128_t *const number,
|
|
uint32_t base,
|
|
char *const out,
|
|
uint32_t out_length);
|
|
void convertUint64BEto128(const uint8_t *const data, uint32_t length, uint128_t *const target);
|
|
void convertUint128BE(const uint8_t *const data, uint32_t length, uint128_t *const target);
|
|
|
|
#endif // _UINT128_H_
|