| /* |
| Copyright (c) INRIA and Microsoft Corporation. All rights reserved. |
| Licensed under the Apache 2.0 License. |
| */ |
| |
| #ifndef __FStar_UInt128_Verified_H |
| #define __FStar_UInt128_Verified_H |
| #include <inttypes.h> |
| #include <stdbool.h> |
| #include "kremlin/internal/types.h" |
| #include "kremlin/internal/target.h" |
| |
| #include "FStar_UInt_8_16_32_64.h" |
| |
| static inline uint64_t |
| FStar_UInt128_constant_time_carry(uint64_t a, uint64_t b) |
| { |
| return (a ^ ((a ^ b) | ((a - b) ^ b))) >> (uint32_t)63U; |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_carry(uint64_t a, uint64_t b) |
| { |
| return FStar_UInt128_constant_time_carry(a, b); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_add(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low + b.low; |
| lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_add_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low + b.low; |
| lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_add_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low + b.low; |
| lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_sub(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low - b.low; |
| lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_sub_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low - b.low; |
| lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_sub_mod_impl(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low - b.low; |
| lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_sub_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return FStar_UInt128_sub_mod_impl(a, b); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_logand(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low & b.low; |
| lit.high = a.high & b.high; |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_logxor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low ^ b.low; |
| lit.high = a.high ^ b.high; |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_logor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low | b.low; |
| lit.high = a.high | b.high; |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_lognot(FStar_UInt128_uint128 a) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = ~a.low; |
| lit.high = ~a.high; |
| return lit; |
| } |
| |
| static uint32_t FStar_UInt128_u32_64 = (uint32_t)64U; |
| |
| static inline uint64_t |
| FStar_UInt128_add_u64_shift_left(uint64_t hi, uint64_t lo, uint32_t s) |
| { |
| return (hi << s) + (lo >> (FStar_UInt128_u32_64 - s)); |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_add_u64_shift_left_respec(uint64_t hi, uint64_t lo, uint32_t s) |
| { |
| return FStar_UInt128_add_u64_shift_left(hi, lo, s); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_left_small(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| if (s == (uint32_t)0U) { |
| return a; |
| } else { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.low << s; |
| lit.high = FStar_UInt128_add_u64_shift_left_respec(a.high, a.low, s); |
| return lit; |
| } |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_left_large(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = (uint64_t)0U; |
| lit.high = a.low << (s - FStar_UInt128_u32_64); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_left(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| if (s < FStar_UInt128_u32_64) { |
| return FStar_UInt128_shift_left_small(a, s); |
| } else { |
| return FStar_UInt128_shift_left_large(a, s); |
| } |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_add_u64_shift_right(uint64_t hi, uint64_t lo, uint32_t s) |
| { |
| return (lo >> s) + (hi << (FStar_UInt128_u32_64 - s)); |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_add_u64_shift_right_respec(uint64_t hi, uint64_t lo, uint32_t s) |
| { |
| return FStar_UInt128_add_u64_shift_right(hi, lo, s); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_right_small(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| if (s == (uint32_t)0U) { |
| return a; |
| } else { |
| FStar_UInt128_uint128 lit; |
| lit.low = FStar_UInt128_add_u64_shift_right_respec(a.high, a.low, s); |
| lit.high = a.high >> s; |
| return lit; |
| } |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_right_large(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a.high >> (s - FStar_UInt128_u32_64); |
| lit.high = (uint64_t)0U; |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_shift_right(FStar_UInt128_uint128 a, uint32_t s) |
| { |
| if (s < FStar_UInt128_u32_64) { |
| return FStar_UInt128_shift_right_small(a, s); |
| } else { |
| return FStar_UInt128_shift_right_large(a, s); |
| } |
| } |
| |
| static inline bool |
| FStar_UInt128_eq(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return a.low == b.low && a.high == b.high; |
| } |
| |
| static inline bool |
| FStar_UInt128_gt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return a.high > b.high || (a.high == b.high && a.low > b.low); |
| } |
| |
| static inline bool |
| FStar_UInt128_lt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return a.high < b.high || (a.high == b.high && a.low < b.low); |
| } |
| |
| static inline bool |
| FStar_UInt128_gte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return a.high > b.high || (a.high == b.high && a.low >= b.low); |
| } |
| |
| static inline bool |
| FStar_UInt128_lte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| return a.high < b.high || (a.high == b.high && a.low <= b.low); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_eq_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high); |
| lit.high = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_gte_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = |
| (FStar_UInt64_gte_mask(a.high, b.high) & ~FStar_UInt64_eq_mask(a.high, b.high)) | (FStar_UInt64_eq_mask(a.high, b.high) & FStar_UInt64_gte_mask(a.low, b.low)); |
| lit.high = |
| (FStar_UInt64_gte_mask(a.high, b.high) & ~FStar_UInt64_eq_mask(a.high, b.high)) | (FStar_UInt64_eq_mask(a.high, b.high) & FStar_UInt64_gte_mask(a.low, b.low)); |
| return lit; |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_uint64_to_uint128(uint64_t a) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = a; |
| lit.high = (uint64_t)0U; |
| return lit; |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 a) |
| { |
| return a.low; |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_u64_mod_32(uint64_t a) |
| { |
| return a & (uint64_t)0xffffffffU; |
| } |
| |
| static uint32_t FStar_UInt128_u32_32 = (uint32_t)32U; |
| |
| static inline uint64_t |
| FStar_UInt128_u32_combine(uint64_t hi, uint64_t lo) |
| { |
| return lo + (hi << FStar_UInt128_u32_32); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_mul32(uint64_t x, uint32_t y) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = |
| FStar_UInt128_u32_combine((x >> FStar_UInt128_u32_32) * (uint64_t)y + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> FStar_UInt128_u32_32), |
| FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * (uint64_t)y)); |
| lit.high = |
| ((x >> FStar_UInt128_u32_32) * (uint64_t)y + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> FStar_UInt128_u32_32)) >> FStar_UInt128_u32_32; |
| return lit; |
| } |
| |
| static inline uint64_t |
| FStar_UInt128_u32_combine_(uint64_t hi, uint64_t lo) |
| { |
| return lo + (hi << FStar_UInt128_u32_32); |
| } |
| |
| static inline FStar_UInt128_uint128 |
| FStar_UInt128_mul_wide(uint64_t x, uint64_t y) |
| { |
| FStar_UInt128_uint128 lit; |
| lit.low = |
| FStar_UInt128_u32_combine_(FStar_UInt128_u64_mod_32(x) * (y >> FStar_UInt128_u32_32) + |
| FStar_UInt128_u64_mod_32((x >> FStar_UInt128_u32_32) * FStar_UInt128_u64_mod_32(y) + (FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y) >> FStar_UInt128_u32_32)), |
| FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y))); |
| lit.high = |
| (x >> FStar_UInt128_u32_32) * (y >> FStar_UInt128_u32_32) + |
| (((x >> FStar_UInt128_u32_32) * FStar_UInt128_u64_mod_32(y) + (FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y) >> FStar_UInt128_u32_32)) >> FStar_UInt128_u32_32) + |
| ((FStar_UInt128_u64_mod_32(x) * (y >> FStar_UInt128_u32_32) + |
| FStar_UInt128_u64_mod_32((x >> FStar_UInt128_u32_32) * FStar_UInt128_u64_mod_32(y) + (FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y) >> FStar_UInt128_u32_32))) >> |
| FStar_UInt128_u32_32); |
| return lit; |
| } |
| |
| #define __FStar_UInt128_Verified_H_DEFINED |
| #endif |