/*
 * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */
#ifndef HEADER_MODES_LCL_H
#define HEADER_MODES_LCL_H

#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
typedef __int64 i64;
typedef unsigned __int64 u64;
#define U64(C) C##UI64
#elif defined(__arch64__)
typedef long i64;
typedef unsigned long u64;
#define U64(C) C##UL
#else
typedef long long i64;
typedef unsigned long long u64;
#define U64(C) C##ULL
#endif

typedef unsigned int u32;
typedef unsigned char u8;

#define STRICT_ALIGNMENT 1
#ifndef PEDANTIC
#if defined(__i386) || defined(__i386__) || defined(__x86_64) ||               \
    defined(__x86_64__) || defined(_M_IX86) || defined(_M_AMD64) ||            \
    defined(_M_X64) || defined(__aarch64__) || defined(__s390__) ||            \
    defined(__s390x__)
#undef STRICT_ALIGNMENT
#endif
#endif

#if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) &&                          \
    !defined(OPENSSL_NO_INLINE_ASM)
#if defined(__GNUC__) && __GNUC__ >= 2
#if defined(__x86_64) || defined(__x86_64__)
#define BSWAP8(x)                                                              \
  ({                                                                           \
    u64 ret_ = (x);                                                            \
    asm("bswapq %0" : "+r"(ret_));                                             \
    ret_;                                                                      \
  })
#define BSWAP4(x)                                                              \
  ({                                                                           \
    u32 ret_ = (x);                                                            \
    asm("bswapl %0" : "+r"(ret_));                                             \
    ret_;                                                                      \
  })
#elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)
#define BSWAP8(x)                                                              \
  ({                                                                           \
    u32 lo_ = (u64)(x) >> 32, hi_ = (x);                                       \
    asm("bswapl %0; bswapl %1" : "+r"(hi_), "+r"(lo_));                        \
    (u64) hi_ << 32 | lo_;                                                     \
  })
#define BSWAP4(x)                                                              \
  ({                                                                           \
    u32 ret_ = (x);                                                            \
    asm("bswapl %0" : "+r"(ret_));                                             \
    ret_;                                                                      \
  })
#elif defined(__aarch64__)
#define BSWAP8(x)                                                              \
  ({                                                                           \
    u64 ret_;                                                                  \
    asm("rev %0,%1" : "=r"(ret_) : "r"(x));                                    \
    ret_;                                                                      \
  })
#define BSWAP4(x)                                                              \
  ({                                                                           \
    u32 ret_;                                                                  \
    asm("rev %w0,%w1" : "=r"(ret_) : "r"(x));                                  \
    ret_;                                                                      \
  })
#elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT)
#define BSWAP8(x)                                                              \
  ({                                                                           \
    u32 lo_ = (u64)(x) >> 32, hi_ = (x);                                       \
    asm("rev %0,%0; rev %1,%1" : "+r"(hi_), "+r"(lo_));                        \
    (u64) hi_ << 32 | lo_;                                                     \
  })
#define BSWAP4(x)                                                              \
  ({                                                                           \
    u32 ret_;                                                                  \
    asm("rev %0,%1" : "=r"(ret_) : "r"((u32)(x)));                             \
    ret_;                                                                      \
  })
#endif
#elif defined(_MSC_VER)
#if _MSC_VER >= 1300
#pragma intrinsic(_byteswap_uint64, _byteswap_ulong)
#define BSWAP8(x) _byteswap_uint64((u64)(x))
#define BSWAP4(x) _byteswap_ulong((u32)(x))
#elif defined(_M_IX86)
__inline u32 _bswap4(u32 val) { _asm mov eax, val _asm bswap eax }
#define BSWAP4(x) _bswap4(x)
#endif
#endif
#endif
#if defined(BSWAP4) && !defined(STRICT_ALIGNMENT)
#define GETU32(p) BSWAP4(*(const u32 *)(p))
#define PUTU32(p, v) *(u32 *)(p) = BSWAP4(v)
#else
#define GETU32(p)                                                              \
  ((u32)(p)[0] << 24 | (u32)(p)[1] << 16 | (u32)(p)[2] << 8 | (u32)(p)[3])
#define PUTU32(p, v)                                                           \
  ((p)[0] = (u8)((v) >> 24), (p)[1] = (u8)((v) >> 16),                         \
   (p)[2] = (u8)((v) >> 8), (p)[3] = (u8)(v))
#endif
/*- GCM definitions */ typedef struct { u64 hi, lo; } u128;

#ifdef TABLE_BITS
#undef TABLE_BITS
#endif
/*
 * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
 * never be set to 8 [or 1]. For further information see gcm128.c.
 */
#define TABLE_BITS 4

#ifndef ROL32
#define ROL32(a, n) (((a) << (n)) | (((a)&0xffffffff) >> (32 - (n))))
#endif

#endif