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path: root/xmrstak/backend/cryptonight.hpp
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#pragma once
#include <stddef.h>
#include <inttypes.h>
#include <type_traits>

enum xmrstak_algo 
{
	invalid_algo = 0,
	cryptonight = 1,
	cryptonight_lite = 2,
	cryptonight_monero = 3,
	cryptonight_heavy = 4,
	cryptonight_aeon = 5,
	cryptonight_ipbc = 6 // equal to cryptonight_aeon with a small tweak in the miner code
};

// define aeon settings
constexpr size_t CRYPTONIGHT_LITE_MEMORY = 1 * 1024 * 1024;
constexpr uint32_t CRYPTONIGHT_LITE_MASK = 0xFFFF0;
constexpr uint32_t CRYPTONIGHT_LITE_ITER = 0x40000;

constexpr size_t CRYPTONIGHT_MEMORY = 2 * 1024 * 1024;
constexpr uint32_t CRYPTONIGHT_MASK = 0x1FFFF0;
constexpr uint32_t CRYPTONIGHT_ITER = 0x80000;

constexpr size_t CRYPTONIGHT_HEAVY_MEMORY = 4 * 1024 * 1024;
constexpr uint32_t CRYPTONIGHT_HEAVY_MASK = 0x3FFFF0;
constexpr uint32_t CRYPTONIGHT_HEAVY_ITER = 0x40000;

template<xmrstak_algo ALGO>
inline constexpr size_t cn_select_memory() { return 0; }

template<>
inline constexpr size_t cn_select_memory<cryptonight>() { return CRYPTONIGHT_MEMORY; }

template<>
inline constexpr size_t cn_select_memory<cryptonight_lite>() { return CRYPTONIGHT_LITE_MEMORY; }

template<>
inline constexpr size_t cn_select_memory<cryptonight_monero>() { return CRYPTONIGHT_MEMORY; }

template<>
inline constexpr size_t cn_select_memory<cryptonight_heavy>() { return CRYPTONIGHT_HEAVY_MEMORY; }

template<>
inline constexpr size_t cn_select_memory<cryptonight_aeon>() { return CRYPTONIGHT_LITE_MEMORY; }

template<>
inline constexpr size_t cn_select_memory<cryptonight_ipbc>() { return CRYPTONIGHT_LITE_MEMORY; }


inline size_t cn_select_memory(xmrstak_algo algo)
{
	switch(algo)
	{
	case cryptonight_monero:
	case cryptonight:
		return CRYPTONIGHT_MEMORY;
	case cryptonight_ipbc:
	case cryptonight_aeon:
	case cryptonight_lite:
		return CRYPTONIGHT_LITE_MEMORY;
	case cryptonight_heavy:
		return CRYPTONIGHT_HEAVY_MEMORY;
	default:
		return 0;
	}
}

template<xmrstak_algo ALGO>
inline constexpr uint32_t cn_select_mask() { return 0; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight>() { return CRYPTONIGHT_MASK; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight_lite>() { return CRYPTONIGHT_LITE_MASK; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight_monero>() { return CRYPTONIGHT_MASK; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight_heavy>() { return CRYPTONIGHT_HEAVY_MASK; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight_aeon>() { return CRYPTONIGHT_LITE_MASK; }

template<>
inline constexpr uint32_t cn_select_mask<cryptonight_ipbc>() { return CRYPTONIGHT_LITE_MASK; }

inline size_t cn_select_mask(xmrstak_algo algo)
{
	switch(algo)
	{
	case cryptonight_monero:
	case cryptonight:
		return CRYPTONIGHT_MASK;
	case cryptonight_ipbc:
	case cryptonight_aeon:
	case cryptonight_lite:
		return CRYPTONIGHT_LITE_MASK;
	case cryptonight_heavy:
		return CRYPTONIGHT_HEAVY_MASK;
	default:
		return 0;
	}
}

template<xmrstak_algo ALGO>
inline constexpr uint32_t cn_select_iter() { return 0; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight>() { return CRYPTONIGHT_ITER; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight_lite>() { return CRYPTONIGHT_LITE_ITER; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight_monero>() { return CRYPTONIGHT_ITER; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight_heavy>() { return CRYPTONIGHT_HEAVY_ITER; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight_aeon>() { return CRYPTONIGHT_LITE_ITER; }

template<>
inline constexpr uint32_t cn_select_iter<cryptonight_ipbc>() { return CRYPTONIGHT_LITE_ITER; }

inline size_t cn_select_iter(xmrstak_algo algo)
{
	switch(algo)
	{
	case cryptonight_monero:
	case cryptonight:
		return CRYPTONIGHT_ITER;
	case cryptonight_ipbc:
	case cryptonight_aeon:
	case cryptonight_lite:
		return CRYPTONIGHT_LITE_ITER;
	case cryptonight_heavy:
		return CRYPTONIGHT_HEAVY_ITER;
	default:
		return 0;
	}
}
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