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types.h
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types.h
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/* Copyright 2015, Kenneth MacKay. Licensed under the BSD 2-clause license. */
#ifndef _UECC_TYPES_H_
#define _UECC_TYPES_H_
#ifndef uECC_PLATFORM
#if __AVR__
#define uECC_PLATFORM uECC_avr
#elif defined(__thumb2__) || defined(_M_ARMT) /* I think MSVC only supports Thumb-2 targets */
#define uECC_PLATFORM uECC_arm_thumb2
#elif defined(__thumb__)
#define uECC_PLATFORM uECC_arm_thumb
#elif defined(__arm__) || defined(_M_ARM)
#define uECC_PLATFORM uECC_arm
#elif defined(__aarch64__)
#define uECC_PLATFORM uECC_arm64
#elif defined(__i386__) || defined(_M_IX86) || defined(_X86_) || defined(__I86__)
#define uECC_PLATFORM uECC_x86
#elif defined(__amd64__) || defined(_M_X64)
#define uECC_PLATFORM uECC_x86_64
#else
#define uECC_PLATFORM uECC_arch_other
#endif
#endif
#ifndef uECC_WORD_SIZE
#if uECC_PLATFORM == uECC_avr
#define uECC_WORD_SIZE 1
#elif (uECC_PLATFORM == uECC_x86_64 || uECC_PLATFORM == uECC_arm64)
#define uECC_WORD_SIZE 8
#else
#define uECC_WORD_SIZE 4
#endif
#endif
#if (uECC_WORD_SIZE != 1) && (uECC_WORD_SIZE != 4) && (uECC_WORD_SIZE != 8)
#error "Unsupported value for uECC_WORD_SIZE"
#endif
#if ((uECC_PLATFORM == uECC_avr) && (uECC_WORD_SIZE != 1))
#pragma message ("uECC_WORD_SIZE must be 1 for AVR")
#undef uECC_WORD_SIZE
#define uECC_WORD_SIZE 1
#endif
#if ((uECC_PLATFORM == uECC_arm || uECC_PLATFORM == uECC_arm_thumb || \
uECC_PLATFORM == uECC_arm_thumb2) && \
(uECC_WORD_SIZE != 4))
#pragma message ("uECC_WORD_SIZE must be 4 for ARM")
#undef uECC_WORD_SIZE
#define uECC_WORD_SIZE 4
#endif
#if defined(__SIZEOF_INT128__) || ((__clang_major__ * 100 + __clang_minor__) >= 302)
#define SUPPORTS_INT128 1
#else
#define SUPPORTS_INT128 0
#endif
typedef int8_t wordcount_t;
typedef int16_t bitcount_t;
typedef int8_t cmpresult_t;
#if (uECC_WORD_SIZE == 1)
typedef uint8_t uECC_word_t;
typedef uint16_t uECC_dword_t;
#define HIGH_BIT_SET 0x80
#define uECC_WORD_BITS 8
#define uECC_WORD_BITS_SHIFT 3
#define uECC_WORD_BITS_MASK 0x07
#elif (uECC_WORD_SIZE == 4)
typedef uint32_t uECC_word_t;
typedef uint64_t uECC_dword_t;
#define HIGH_BIT_SET 0x80000000
#define uECC_WORD_BITS 32
#define uECC_WORD_BITS_SHIFT 5
#define uECC_WORD_BITS_MASK 0x01F
#elif (uECC_WORD_SIZE == 8)
typedef uint64_t uECC_word_t;
#if SUPPORTS_INT128
typedef unsigned __int128 uECC_dword_t;
#endif
#define HIGH_BIT_SET 0x8000000000000000ull
#define uECC_WORD_BITS 64
#define uECC_WORD_BITS_SHIFT 6
#define uECC_WORD_BITS_MASK 0x03F
#endif /* uECC_WORD_SIZE */
#endif /* _UECC_TYPES_H_ */