mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __UTILITY_H__
|
|
#define __UTILITY_H__
|
|
|
|
#include <type_traits>
|
|
#include <cstdint>
|
|
#include <cstddef>
|
|
#include <memory>
|
|
|
|
#include <hal.h>
|
|
|
|
#define LOCATE_IN_RAM __attribute__((section(".ramtext")))
|
|
|
|
template<typename E>
|
|
constexpr typename std::underlying_type<E>::type toUType(E enumerator) noexcept {
|
|
/* Thanks, Scott Meyers! */
|
|
return static_cast<typename std::underlying_type<E>::type>(enumerator);
|
|
}
|
|
|
|
inline uint32_t flp2(uint32_t v) {
|
|
v |= v >> 1;
|
|
v |= v >> 2;
|
|
v |= v >> 4;
|
|
v |= v >> 8;
|
|
v |= v >> 16;
|
|
return v - (v >> 1);
|
|
}
|
|
|
|
uint32_t gcd(const uint32_t u, const uint32_t v);
|
|
|
|
template<class T>
|
|
inline constexpr T pow(const T base, unsigned const exponent) {
|
|
return (exponent == 0) ? 1 : (base * pow(base, exponent - 1));
|
|
}
|
|
|
|
#if defined(LPC43XX_M4)
|
|
static inline bool m4_flag_saturation() {
|
|
return __get_APSR() & (1U << 27);
|
|
}
|
|
|
|
static inline void clear_m4_flag_saturation() {
|
|
uint32_t flags = 1;
|
|
__asm volatile ("MSR APSR_nzcvqg, %0" : : "r" (flags));
|
|
}
|
|
|
|
#endif
|
|
|
|
/* Override new/delete to use Chibi/OS heap functions */
|
|
/* NOTE: Do not inline these, it doesn't work. ;-) */
|
|
void* operator new(size_t size);
|
|
void* operator new[](size_t size);
|
|
void operator delete(void* p);
|
|
void operator delete[](void* p);
|
|
|
|
namespace std {
|
|
|
|
/*! Stephan T Lavavej (STL!) implementation of make_unique, which has been accepted into the C++14 standard.
|
|
* It includes handling for arrays.
|
|
* Paper here: http://isocpp.org/files/papers/N3656.txt
|
|
*/
|
|
template<class T> struct _Unique_if {
|
|
typedef unique_ptr<T> _Single_object;
|
|
};
|
|
|
|
//! Specialization for unbound array
|
|
template<class T> struct _Unique_if<T[]> {
|
|
typedef unique_ptr<T[]> _Unknown_bound;
|
|
};
|
|
|
|
//! Specialization for array of known size
|
|
template<class T, size_t N> struct _Unique_if<T[N]> {
|
|
typedef void _Known_bound;
|
|
};
|
|
|
|
//! Specialization for normal object type
|
|
template<class T, class... Args>
|
|
typename _Unique_if<T>::_Single_object
|
|
make_unique(Args&& ... args) {
|
|
return unique_ptr<T>(new T(std::forward<Args>(args)...));
|
|
}
|
|
|
|
//! Specialization for unknown bound
|
|
template<class T>
|
|
typename _Unique_if<T>::_Unknown_bound
|
|
make_unique(size_t n) {
|
|
typedef typename remove_extent<T>::type U;
|
|
return unique_ptr<T>(new U[n]());
|
|
}
|
|
|
|
//! Deleted specialization
|
|
template<class T, class... Args>
|
|
typename _Unique_if<T>::_Known_bound
|
|
make_unique(Args&& ...) = delete;
|
|
|
|
} /* namespace std */
|
|
|
|
#endif/*__UTILITY_H__*/
|