text: /* This file was auto-generated by KreMLin! */
  
  #include "FStar.h"
  
  static uint64_t FStar_UInt128_constant_time_carry(uint64_t a, uint64_t b)
  {
    return (a ^ ((a ^ b) | ((a - b) ^ b))) >> (uint32_t)63U;
  }
  
  static uint64_t FStar_UInt128_carry(uint64_t a, uint64_t b)
  {
    return FStar_UInt128_constant_time_carry(a, b);
  }
  
  FStar_UInt128_uint128 FStar_UInt128_add(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .low = a.low + b.low,
          .high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low)
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_add_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .low = a.low + b.low,
          .high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low)
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_sub(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .low = a.low - b.low,
          .high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low)
        }
      );
  }
  
  static FStar_UInt128_uint128
  FStar_UInt128_sub_mod_impl(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .low = a.low - b.low,
          .high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low)
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_sub_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return FStar_UInt128_sub_mod_impl(a, b);
  }
  
  FStar_UInt128_uint128 FStar_UInt128_logand(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return ((FStar_UInt128_uint128){ .low = a.low & b.low, .high = a.high & b.high });
  }
  
  FStar_UInt128_uint128 FStar_UInt128_logxor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return ((FStar_UInt128_uint128){ .low = a.low ^ b.low, .high = a.high ^ b.high });
  }
  
  FStar_UInt128_uint128 FStar_UInt128_logor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return ((FStar_UInt128_uint128){ .low = a.low | b.low, .high = a.high | b.high });
  }
  
  FStar_UInt128_uint128 FStar_UInt128_lognot(FStar_UInt128_uint128 a)
  {
    return ((FStar_UInt128_uint128){ .low = ~a.low, .high = ~a.high });
  }
  
  static uint32_t FStar_UInt128_u32_64 = (uint32_t)64U;
  
  static 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 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 FStar_UInt128_uint128
  FStar_UInt128_shift_left_small(FStar_UInt128_uint128 a, uint32_t s)
  {
    if (s == (uint32_t)0U)
      return a;
    else
      return
        (
          (FStar_UInt128_uint128){
            .low = a.low << s,
            .high = FStar_UInt128_add_u64_shift_left_respec(a.high, a.low, s)
          }
        );
  }
  
  static FStar_UInt128_uint128
  FStar_UInt128_shift_left_large(FStar_UInt128_uint128 a, uint32_t s)
  {
    return
      ((FStar_UInt128_uint128){ .low = (uint64_t)0U, .high = a.low << (s - FStar_UInt128_u32_64) });
  }
  
  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 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 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 FStar_UInt128_uint128
  FStar_UInt128_shift_right_small(FStar_UInt128_uint128 a, uint32_t s)
  {
    if (s == (uint32_t)0U)
      return a;
    else
      return
        (
          (FStar_UInt128_uint128){
            .low = FStar_UInt128_add_u64_shift_right_respec(a.high, a.low, s),
            .high = a.high >> s
          }
        );
  }
  
  static FStar_UInt128_uint128
  FStar_UInt128_shift_right_large(FStar_UInt128_uint128 a, uint32_t s)
  {
    return
      ((FStar_UInt128_uint128){ .low = a.high >> (s - FStar_UInt128_u32_64), .high = (uint64_t)0U });
  }
  
  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);
  }
  
  FStar_UInt128_uint128 FStar_UInt128_eq_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .low = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high),
          .high = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high)
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_gte_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
  {
    return
      (
        (FStar_UInt128_uint128){
          .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)),
          .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))
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_uint64_to_uint128(uint64_t a)
  {
    return ((FStar_UInt128_uint128){ .low = a, .high = (uint64_t)0U });
  }
  
  uint64_t FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 a)
  {
    return a.low;
  }
  
  static uint64_t FStar_UInt128_u64_l32_mask = (uint64_t)0xffffffffU;
  
  static uint64_t FStar_UInt128_u64_mod_32(uint64_t a)
  {
    return a & FStar_UInt128_u64_l32_mask;
  }
  
  static uint32_t FStar_UInt128_u32_32 = (uint32_t)32U;
  
  static K___uint64_t_uint64_t_uint64_t_uint64_t
  FStar_UInt128_mul_wide_impl_t_(uint64_t x, uint64_t y)
  {
    return
      (
        (K___uint64_t_uint64_t_uint64_t_uint64_t){
          .fst = FStar_UInt128_u64_mod_32(x),
          .snd = FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y)),
          .thd = x >> FStar_UInt128_u32_32,
          .f3 = (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)
        }
      );
  }
  
  static uint64_t FStar_UInt128_u32_combine_(uint64_t hi, uint64_t lo)
  {
    return lo + (hi << FStar_UInt128_u32_32);
  }
  
  static FStar_UInt128_uint128 FStar_UInt128_mul_wide_impl(uint64_t x, uint64_t y)
  {
    K___uint64_t_uint64_t_uint64_t_uint64_t scrut = FStar_UInt128_mul_wide_impl_t_(x, y);
    uint64_t u1 = scrut.fst;
    uint64_t w3 = scrut.snd;
    uint64_t x_ = scrut.thd;
    uint64_t t_ = scrut.f3;
    return
      (
        (FStar_UInt128_uint128){
          .low = FStar_UInt128_u32_combine_(u1
            * (y >> FStar_UInt128_u32_32)
            + FStar_UInt128_u64_mod_32(t_),
            w3),
          .high = x_
          * (y >> FStar_UInt128_u32_32)
          + (t_ >> FStar_UInt128_u32_32)
          +
            ((u1 * (y >> FStar_UInt128_u32_32) + FStar_UInt128_u64_mod_32(t_))
            >> FStar_UInt128_u32_32)
        }
      );
  }
  
  FStar_UInt128_uint128 FStar_UInt128_mul_wide(uint64_t x, uint64_t y)
  {
    return FStar_UInt128_mul_wide_impl(x, y);
  }
  
  