Fibonacci LFSR (left-shift version) More...

#include <lfsr.hpp>

Public Member Functions
const state_type_t &	state () const noexcept
	Gets the state.

template<typename UL = unsigned long, typename std::enable_if<(sizeof(UL) *CHAR_BIT >=64), std::nullptr_t >::type = nullptr>
uint64_t	value () const
	Gets the state value.

template<typename UL = unsigned long, typename std::enable_if<(sizeof(UL) *CHAR_BIT< 64), std::nullptr_t >::type = nullptr>
uint64_t	value () const

bool	step () noexcept
	Shift 1 step (Left). Returns output bit (MSB before shift)

uint64_t	step (const uint32_t nbits) noexcept
	Shift nbits steps and pack outputs LSB-first.

Constructor
	FibonacciLFSR_Left (const uint64_t seed) noexcept

	FibonacciLFSR_Left (const state_type_t s) noexcept

Helpers
uint16_t	next16 () noexcept

uint32_t	next32 () noexcept

uint64_t	next64 () noexcept

Static Protected Member Functions
template<uint32_t... Ts>
static bool	taps_xor (const std::bitset< N > &s)

static bool	taps_xor_all (const state_type_t &s)

Detailed Description

template<uint32_t N, uint32_t... Taps>
class m5::utility::FibonacciLFSR_Left< N, Taps >

Fibonacci LFSR (left-shift version)

Template Parameters

N	Value bit width (1..64)
Taps	Tap bit indexes

Public Types