mirror of
https://github.com/sendyne/cppreg.git
synced 2025-05-09 23:24:05 +00:00
2e0d502674
* For write-only registers the merge write implementation for non-constant values was properly updating the cache value. * Unnecessary `inline` have been removed.
652 lines
23 KiB
C++
652 lines
23 KiB
C++
//! cppreg library.
|
|
/**
|
|
* @file cppreg-all.h
|
|
* @author Nicolas Clauvelin (nclauvelin@sendyne.com)
|
|
* @copyright Copyright 2010-2018 Sendyne Corp. All rights reserved.
|
|
*/
|
|
|
|
#include <cstdint>
|
|
#include <type_traits>
|
|
#include <functional>
|
|
#include <limits>
|
|
|
|
// cppreg_Defines.h
|
|
#ifndef CPPREG_CPPREG_DEFINES_H
|
|
#define CPPREG_CPPREG_DEFINES_H
|
|
namespace cppreg {
|
|
using Address_t = std::uintptr_t;
|
|
enum class RegBitSize {
|
|
b8,
|
|
b16,
|
|
b32,
|
|
b64
|
|
};
|
|
using FieldWidth_t = std::uint8_t;
|
|
using FieldOffset_t = std::uint8_t;
|
|
template <typename T>
|
|
struct type_mask {
|
|
constexpr static const T value = std::numeric_limits<T>::max();
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// Traits.h
|
|
#ifndef CPPREG_TRAITS_H
|
|
#define CPPREG_TRAITS_H
|
|
namespace cppreg {
|
|
template <RegBitSize S>
|
|
struct TypeTraits;
|
|
template <> struct TypeTraits<RegBitSize::b8> {
|
|
using type = std::uint8_t;
|
|
constexpr static const std::uint8_t bit_size = 8u;
|
|
constexpr static const std::uint8_t byte_size = bit_size / 8u;
|
|
};
|
|
template <> struct TypeTraits<RegBitSize::b16> {
|
|
using type = std::uint16_t;
|
|
constexpr static const std::uint8_t bit_size = 16u;
|
|
constexpr static const std::uint8_t byte_size = bit_size / 8u;
|
|
};
|
|
template <> struct TypeTraits<RegBitSize::b32> {
|
|
using type = std::uint32_t;
|
|
constexpr static const std::uint8_t bit_size = 32u;
|
|
constexpr static const std::uint8_t byte_size = bit_size / 8u;
|
|
};
|
|
template <> struct TypeTraits<RegBitSize::b64> {
|
|
using type = std::uint64_t;
|
|
constexpr static const std::uint8_t bit_size = 64u;
|
|
constexpr static const std::uint8_t byte_size = bit_size / 8u;
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// Internals.h
|
|
#ifndef CPPREG_INTERNALS_H
|
|
#define CPPREG_INTERNALS_H
|
|
namespace cppreg {
|
|
namespace internals {
|
|
template <
|
|
typename T,
|
|
T value,
|
|
T limit
|
|
>
|
|
struct check_overflow : std::integral_constant<bool, value <= limit> {};
|
|
template <Address_t address, std::size_t alignment>
|
|
struct is_aligned : std::integral_constant<
|
|
bool,
|
|
(address & (alignment - 1)) == 0
|
|
> {
|
|
};
|
|
template <Address_t address, std::uint32_t n, RegBitSize reg_size>
|
|
struct memory_map {
|
|
using mem_array_t = std::array<
|
|
volatile typename TypeTraits<reg_size>::type,
|
|
n / sizeof(typename TypeTraits<reg_size>::type)
|
|
>;
|
|
static mem_array_t& array;
|
|
static_assert(
|
|
is_aligned<address, TypeTraits<reg_size>::byte_size>::value,
|
|
"memory_map: base address is mis-aligned for register type"
|
|
);
|
|
};
|
|
template <Address_t address, std::uint32_t n, RegBitSize reg_size>
|
|
typename memory_map<address, n, reg_size>::mem_array_t&
|
|
memory_map<address, n, reg_size>::array = *(
|
|
reinterpret_cast<typename memory_map<address, n, reg_size>
|
|
::mem_array_t*>(
|
|
address
|
|
)
|
|
);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// AccessPolicy.h
|
|
#ifndef CPPREG_ACCESSPOLICY_H
|
|
#define CPPREG_ACCESSPOLICY_H
|
|
namespace cppreg {
|
|
template <typename MMIO_t, typename T, T mask, FieldOffset_t offset>
|
|
struct RegisterRead {
|
|
constexpr static const bool is_trivial =
|
|
(mask == type_mask<T>::value) && (offset == 0u);
|
|
template <typename U = void>
|
|
static T read(
|
|
const MMIO_t& mmio_device,
|
|
typename std::enable_if<!is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
return static_cast<T>((mmio_device & mask) >> offset);
|
|
};
|
|
template <typename U = void>
|
|
static T read(
|
|
const MMIO_t& mmio_device,
|
|
typename std::enable_if<is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
return static_cast<T>(mmio_device);
|
|
};
|
|
};
|
|
template <typename MMIO_t, typename T, T mask, FieldOffset_t offset>
|
|
struct RegisterWrite {
|
|
constexpr static const bool is_trivial =
|
|
(mask == type_mask<T>::value) && (offset == 0u);
|
|
template <typename U = void>
|
|
static void write(
|
|
MMIO_t& mmio_device,
|
|
T value,
|
|
typename std::enable_if<!is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
mmio_device = static_cast<T>(
|
|
(mmio_device & ~mask) | ((value << offset) & mask)
|
|
);
|
|
};
|
|
template <typename U = void>
|
|
static void write(
|
|
MMIO_t& mmio_device,
|
|
T value,
|
|
typename std::enable_if<is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
mmio_device = value;
|
|
};
|
|
};
|
|
template <
|
|
typename MMIO_t, typename T, T mask, FieldOffset_t offset, T value
|
|
>
|
|
struct RegisterWriteConstant {
|
|
constexpr static const bool is_trivial =
|
|
(mask == type_mask<T>::value) && (offset == 0u);
|
|
template <typename U = void>
|
|
static void write(
|
|
MMIO_t& mmio_device,
|
|
typename std::enable_if<!is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
mmio_device = static_cast<T>(
|
|
(mmio_device & ~mask) | ((value << offset) & mask)
|
|
);
|
|
};
|
|
template <typename U = void>
|
|
static void write(
|
|
MMIO_t& mmio_device,
|
|
typename std::enable_if<is_trivial, U*>::type = nullptr
|
|
) noexcept {
|
|
mmio_device = value;
|
|
};
|
|
};
|
|
struct read_only {
|
|
template <typename MMIO_t, typename T, T mask, FieldOffset_t offset>
|
|
static T read(const MMIO_t& mmio_device) noexcept {
|
|
return RegisterRead<MMIO_t, T, mask, offset>::read(mmio_device);
|
|
};
|
|
};
|
|
struct read_write : read_only {
|
|
template <typename MMIO_t, typename T, T mask, FieldOffset_t offset>
|
|
static void write(MMIO_t& mmio_device,
|
|
const T value) noexcept {
|
|
RegisterWrite<MMIO_t, T, mask, offset>::write(mmio_device, value);
|
|
};
|
|
template <
|
|
typename MMIO_t, typename T, T mask, FieldOffset_t offset, T value
|
|
>
|
|
static void write(MMIO_t& mmio_device) noexcept {
|
|
RegisterWriteConstant<MMIO_t, T, mask, offset, value>
|
|
::write(mmio_device);
|
|
};
|
|
template <typename MMIO_t, typename T, T mask>
|
|
static void set(MMIO_t& mmio_device)
|
|
noexcept {
|
|
RegisterWriteConstant<MMIO_t, T, mask, 0u, mask>
|
|
::write(mmio_device);
|
|
};
|
|
template <typename MMIO_t, typename T, T mask>
|
|
static void clear(MMIO_t& mmio_device)
|
|
noexcept {
|
|
RegisterWriteConstant<MMIO_t, T, mask, 0u, ~mask>
|
|
::write(mmio_device);
|
|
};
|
|
template <typename MMIO_t, typename T, T mask>
|
|
static void toggle(MMIO_t& mmio_device)
|
|
noexcept {
|
|
mmio_device = static_cast<T>((mmio_device) ^ mask);
|
|
};
|
|
};
|
|
struct write_only {
|
|
template <typename MMIO_t, typename T, T mask, FieldOffset_t offset>
|
|
static void write(MMIO_t& mmio_device, const T value) noexcept {
|
|
RegisterWrite<MMIO_t, T, type_mask<T>::value, 0u>::write(
|
|
mmio_device, ((value << offset) & mask)
|
|
);
|
|
};
|
|
template <
|
|
typename MMIO_t, typename T, T mask, FieldOffset_t offset, T value
|
|
>
|
|
static void write(MMIO_t& mmio_device) noexcept {
|
|
RegisterWriteConstant<
|
|
MMIO_t, T, type_mask<T>::value, 0u, ((value << offset) & mask)
|
|
>
|
|
::write(mmio_device);
|
|
};
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// Mask.h
|
|
#ifndef CPPREG_MASK_H
|
|
#define CPPREG_MASK_H
|
|
namespace cppreg {
|
|
template <typename Mask_t>
|
|
constexpr Mask_t make_mask(const FieldWidth_t width) noexcept {
|
|
return width == 0 ?
|
|
0u
|
|
:
|
|
static_cast<Mask_t>(
|
|
(make_mask<Mask_t>(FieldWidth_t(width - 1)) << 1) | 1
|
|
);
|
|
};
|
|
template <typename Mask_t>
|
|
constexpr Mask_t make_shifted_mask(const FieldWidth_t width,
|
|
const FieldOffset_t offset) noexcept {
|
|
return static_cast<Mask_t>(make_mask<Mask_t>(width) << offset);
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// ShadowValue.h
|
|
#ifndef CPPREG_SHADOWVALUE_H
|
|
#define CPPREG_SHADOWVALUE_H
|
|
namespace cppreg {
|
|
template <typename Register, bool use_shadow>
|
|
struct Shadow : std::false_type {};
|
|
template <typename Register>
|
|
struct Shadow<Register, true> : std::true_type {
|
|
static typename Register::type shadow_value;
|
|
};
|
|
template <typename Register>
|
|
typename Register::type Shadow<Register, true>::shadow_value =
|
|
Register::reset;
|
|
}
|
|
#endif
|
|
|
|
// MergeWrite.h
|
|
#ifndef CPPREG_MERGEWRITE_H
|
|
#define CPPREG_MERGEWRITE_H
|
|
namespace cppreg {
|
|
template <
|
|
typename Register,
|
|
typename Register::type mask,
|
|
FieldOffset_t offset,
|
|
typename Register::type value
|
|
> class MergeWrite_tmpl {
|
|
private:
|
|
using base_type = typename Register::type;
|
|
static_assert(!Register::shadow::value,
|
|
"merge write is not available for shadow value register");
|
|
constexpr static const base_type _accumulated_value =
|
|
((value << offset) & mask);
|
|
constexpr static const base_type _combined_mask = mask;
|
|
MergeWrite_tmpl() = default;
|
|
public:
|
|
static MergeWrite_tmpl make() noexcept { return {}; };
|
|
MergeWrite_tmpl(const MergeWrite_tmpl&) = delete;
|
|
MergeWrite_tmpl& operator=(const MergeWrite_tmpl&) = delete;
|
|
MergeWrite_tmpl& operator=(MergeWrite_tmpl&&) = delete;
|
|
MergeWrite_tmpl operator=(MergeWrite_tmpl) = delete;
|
|
MergeWrite_tmpl(MergeWrite_tmpl&&) = delete;
|
|
void done() const && noexcept {
|
|
typename Register::MMIO_t& mmio_device =
|
|
Register::rw_mem_device();
|
|
RegisterWriteConstant<
|
|
typename Register::MMIO_t,
|
|
typename Register::type,
|
|
_combined_mask,
|
|
0u,
|
|
_accumulated_value
|
|
>::write(mmio_device);
|
|
};
|
|
template <
|
|
typename F,
|
|
base_type new_value,
|
|
typename T = MergeWrite_tmpl<
|
|
Register,
|
|
(_combined_mask | F::mask),
|
|
0u,
|
|
(_accumulated_value & ~F::mask) | ((new_value << F::offset) &
|
|
F::mask)
|
|
>
|
|
>
|
|
typename std::enable_if<
|
|
(internals::check_overflow<
|
|
typename Register::type, new_value, (F::mask >> F::offset)
|
|
>::value),
|
|
T
|
|
>::type&&
|
|
with() const && noexcept {
|
|
static_assert(std::is_same<
|
|
typename F::parent_register,
|
|
Register
|
|
>::value,
|
|
"field is not from the same register in merge_write");
|
|
return std::move(T::make());
|
|
};
|
|
};
|
|
template <
|
|
typename Register,
|
|
typename Register::type mask
|
|
>
|
|
class MergeWrite {
|
|
public:
|
|
using base_type = typename Register::type;
|
|
private:
|
|
constexpr static const base_type _combined_mask = mask;
|
|
public:
|
|
constexpr static MergeWrite make(const base_type value) noexcept {
|
|
return MergeWrite(value);
|
|
};
|
|
MergeWrite(MergeWrite&& mw) noexcept
|
|
: _accumulated_value(mw._accumulated_value) {};
|
|
MergeWrite(const MergeWrite&) = delete;
|
|
MergeWrite& operator=(const MergeWrite&) = delete;
|
|
MergeWrite& operator=(MergeWrite&&) = delete;
|
|
void done() const && noexcept {
|
|
typename Register::MMIO_t& mmio_device =
|
|
Register::rw_mem_device();
|
|
RegisterWrite<
|
|
typename Register::MMIO_t,
|
|
base_type,
|
|
_combined_mask,
|
|
0u
|
|
>::write(mmio_device, _accumulated_value);
|
|
};
|
|
template <typename F>
|
|
MergeWrite<Register, _combined_mask | F::mask>
|
|
with(const base_type value) && noexcept {
|
|
static_assert(std::is_same<
|
|
typename F::parent_register,
|
|
Register
|
|
>::value,
|
|
"field is not from the same register in merge_write");
|
|
_accumulated_value = (_accumulated_value & ~F::mask)
|
|
| ((value << F::offset) & F::mask);
|
|
return
|
|
std::move(
|
|
MergeWrite<Register, (_combined_mask | F::mask)>
|
|
::make(_accumulated_value)
|
|
);
|
|
};
|
|
private:
|
|
static_assert(!Register::shadow::value,
|
|
"merge write is not available for shadow value register");
|
|
constexpr MergeWrite() : _accumulated_value(0u) {};
|
|
constexpr explicit MergeWrite(const base_type v) :
|
|
_accumulated_value(v) {};
|
|
base_type _accumulated_value;
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// Register.h
|
|
#ifndef CPPREG_REGISTER_H
|
|
#define CPPREG_REGISTER_H
|
|
namespace cppreg {
|
|
template <
|
|
Address_t reg_address,
|
|
RegBitSize reg_size,
|
|
typename TypeTraits<reg_size>::type reset_value = 0x0,
|
|
bool use_shadow = false
|
|
>
|
|
struct Register {
|
|
using type = typename TypeTraits<reg_size>::type;
|
|
using MMIO_t = volatile type;
|
|
using shadow = Shadow<Register, use_shadow>;
|
|
constexpr static const Address_t base_address = reg_address;
|
|
constexpr static const std::uint8_t size =
|
|
TypeTraits<reg_size>::bit_size;
|
|
constexpr static const type reset = reset_value;
|
|
static MMIO_t& rw_mem_device() {
|
|
return *(reinterpret_cast<MMIO_t* const>(base_address));
|
|
};
|
|
static const MMIO_t& ro_mem_device() {
|
|
return *(reinterpret_cast<const MMIO_t* const>(base_address));
|
|
};
|
|
template <typename F>
|
|
static MergeWrite<typename F::parent_register, F::mask>
|
|
merge_write(const typename F::type value) noexcept {
|
|
return
|
|
MergeWrite<typename F::parent_register, F::mask>
|
|
::make(((value << F::offset) & F::mask));
|
|
};
|
|
template <
|
|
typename F,
|
|
type value,
|
|
typename T = MergeWrite_tmpl<
|
|
typename F::parent_register,
|
|
F::mask,
|
|
F::offset,
|
|
value
|
|
>
|
|
>
|
|
static
|
|
typename std::enable_if<
|
|
internals::check_overflow<
|
|
type, value, (F::mask >> F::offset)
|
|
>::value,
|
|
T
|
|
>::type&&
|
|
merge_write() noexcept {
|
|
return std::move(T::make());
|
|
};
|
|
static_assert(size != 0u,
|
|
"Register: register definition with zero size");
|
|
static_assert(
|
|
internals::is_aligned<reg_address, TypeTraits<reg_size>::byte_size>
|
|
::value,
|
|
"Register: address is mis-aligned for register type"
|
|
);
|
|
};
|
|
}
|
|
#endif
|
|
|
|
// RegisterPack.h
|
|
#ifndef CPPREG_REGISTERPACK_H
|
|
#define CPPREG_REGISTERPACK_H
|
|
namespace cppreg {
|
|
template <
|
|
Address_t base_address,
|
|
std::uint32_t pack_byte_size
|
|
> struct RegisterPack {
|
|
constexpr static const Address_t pack_base = base_address;
|
|
constexpr static const std::uint32_t size_in_bytes = pack_byte_size;
|
|
};
|
|
template <
|
|
typename RegisterPack,
|
|
RegBitSize reg_size,
|
|
std::uint32_t bit_offset,
|
|
typename TypeTraits<reg_size>::type reset_value = 0x0,
|
|
bool use_shadow = false
|
|
>
|
|
struct PackedRegister : Register<
|
|
RegisterPack::pack_base + (bit_offset / 8u),
|
|
reg_size,
|
|
reset_value,
|
|
use_shadow
|
|
> {
|
|
using base_reg = Register<
|
|
RegisterPack::pack_base + (bit_offset / 8u),
|
|
reg_size,
|
|
reset_value,
|
|
use_shadow
|
|
>;
|
|
using mem_map_t = internals::memory_map<
|
|
RegisterPack::pack_base,
|
|
RegisterPack::size_in_bytes,
|
|
reg_size
|
|
>;
|
|
static typename base_reg::MMIO_t& rw_mem_device() noexcept {
|
|
return mem_map_t::array[bit_offset
|
|
/ TypeTraits<reg_size>::bit_size];
|
|
};
|
|
static const typename base_reg::MMIO_t& ro_mem_device() noexcept {
|
|
return mem_map_t::array[bit_offset
|
|
/ TypeTraits<reg_size>::bit_size];
|
|
};
|
|
static_assert(
|
|
TypeTraits<reg_size>::byte_size + (bit_offset / 8u) <=
|
|
RegisterPack::size_in_bytes,
|
|
"PackRegister: packed register is overflowing the pack"
|
|
);
|
|
static_assert(
|
|
internals::is_aligned<
|
|
RegisterPack::pack_base,
|
|
TypeTraits<reg_size>::byte_size
|
|
>::value,
|
|
"PackedRegister: pack base address is mis-aligned for register type"
|
|
);
|
|
static_assert(
|
|
internals::is_aligned<
|
|
RegisterPack::pack_base + (bit_offset / 8u),
|
|
TypeTraits<reg_size>::byte_size
|
|
>::value,
|
|
"PackedRegister: offset address is mis-aligned for register type"
|
|
);
|
|
};
|
|
template <typename... T>
|
|
struct PackIndexing {
|
|
using tuple_t = typename std::tuple<T...>;
|
|
constexpr static const std::size_t n_elems =
|
|
std::tuple_size<tuple_t>::value;
|
|
template <std::size_t N>
|
|
using elem = typename std::tuple_element<N, tuple_t>::type;
|
|
};
|
|
template <std::size_t start, std::size_t end>
|
|
struct for_loop {
|
|
template <typename Func>
|
|
static void apply() noexcept {
|
|
Func().template operator()<start>();
|
|
if (start < end)
|
|
for_loop<start + 1ul, end>::template apply<Func>();
|
|
};
|
|
#if __cplusplus >= 201402L
|
|
template <typename Op>
|
|
static void apply(Op&& f) noexcept {
|
|
if (start < end) {
|
|
f(std::integral_constant<std::size_t, start>{});
|
|
for_loop<start + 1ul, end>::apply(std::forward<Op>(f));
|
|
};
|
|
};
|
|
#endif
|
|
};
|
|
template <std::size_t end>
|
|
struct for_loop<end, end> {
|
|
template <typename Func>
|
|
static void apply() noexcept {};
|
|
#if __cplusplus >= 201402L
|
|
template <typename Op>
|
|
static void apply(Op&& f) noexcept {};
|
|
#endif
|
|
};
|
|
template <typename IndexedPack>
|
|
struct pack_loop : for_loop<0, IndexedPack::n_elems> {};
|
|
}
|
|
#endif
|
|
|
|
// Field.h
|
|
#ifndef CPPREG_REGISTERFIELD_H
|
|
#define CPPREG_REGISTERFIELD_H
|
|
namespace cppreg {
|
|
template <
|
|
typename BaseRegister,
|
|
FieldWidth_t field_width,
|
|
FieldOffset_t field_offset,
|
|
typename AccessPolicy
|
|
>
|
|
struct Field {
|
|
using parent_register = BaseRegister;
|
|
using type = typename parent_register::type;
|
|
using MMIO_t = typename parent_register::MMIO_t;
|
|
using policy = AccessPolicy;
|
|
constexpr static const FieldWidth_t width = field_width;
|
|
constexpr static const FieldOffset_t offset = field_offset;
|
|
constexpr static const type mask = make_shifted_mask<type>(width,
|
|
offset);
|
|
constexpr static const bool has_shadow =
|
|
parent_register::shadow::value;
|
|
template <type value>
|
|
struct check_overflow : internals::check_overflow<
|
|
type,
|
|
value,
|
|
(mask >> offset)
|
|
> {};
|
|
static type read() noexcept {
|
|
return policy::template read<MMIO_t, type, mask, offset>(
|
|
parent_register::ro_mem_device()
|
|
);
|
|
};
|
|
template <typename T = type>
|
|
static void
|
|
write(const typename std::enable_if<!has_shadow, T>::type value)
|
|
noexcept {
|
|
policy::template write<MMIO_t, type, mask, offset>(
|
|
parent_register::rw_mem_device(),
|
|
value
|
|
);
|
|
};
|
|
template <typename T = type>
|
|
static void
|
|
write(const typename std::enable_if<has_shadow, T>::type value)
|
|
noexcept {
|
|
RegisterWrite<type, type, mask, offset>
|
|
::write(parent_register::shadow::shadow_value, value);
|
|
policy::template write<MMIO_t, type, type_mask<type>::value, 0u>(
|
|
parent_register::rw_mem_device(),
|
|
parent_register::shadow::shadow_value
|
|
);
|
|
};
|
|
template <type value, typename T = void>
|
|
static void write(
|
|
typename std::enable_if<
|
|
!has_shadow
|
|
&&
|
|
check_overflow<value>::value,
|
|
T
|
|
>::type* = nullptr
|
|
) noexcept {
|
|
policy::template write<MMIO_t, type, mask, offset, value>(
|
|
parent_register::rw_mem_device()
|
|
);
|
|
};
|
|
template <type value, typename T = void>
|
|
static void write(
|
|
typename std::enable_if<
|
|
has_shadow
|
|
&&
|
|
check_overflow<value>::value,
|
|
T
|
|
>::type* = nullptr
|
|
) noexcept {
|
|
write(value);
|
|
};
|
|
static void set() noexcept {
|
|
policy::template
|
|
set<MMIO_t, type, mask>(parent_register::rw_mem_device());
|
|
};
|
|
static void clear() noexcept {
|
|
policy::template
|
|
clear<MMIO_t, type, mask>(parent_register::rw_mem_device());
|
|
};
|
|
static void toggle() noexcept {
|
|
policy::template
|
|
toggle<MMIO_t, type, mask>(parent_register::rw_mem_device());
|
|
};
|
|
static bool is_set() noexcept {
|
|
return (Field::read() == (mask >> offset));
|
|
};
|
|
static bool is_clear() noexcept {
|
|
return (Field::read() == 0u);
|
|
};
|
|
static_assert(parent_register::size >= width,
|
|
"field width is larger than parent register size");
|
|
static_assert(parent_register::size >= width + offset,
|
|
"offset + width is larger than parent register size");
|
|
static_assert(width != 0u,
|
|
"defining a Field type of width 0u is not allowed");
|
|
};
|
|
}
|
|
#endif
|
|
|