Register.h

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// (c) IMT - Information Management Technology AG, CH-9470 Buchs, www.imt.ch.
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// ActiveParts (AP) and the corresponding Data Flow Framework (DFF) is invented and designed by Jakob Daescher.
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#ifndef IMT_BASE_CORE_UTIL_REGISTER_H
#define IMT_BASE_CORE_UTIL_REGISTER_H
 
#include <Imt.Base.Core.Platform/Platform.h>
#include <Imt.Base.Core.Util/GenerateBitMask.h>
 
namespace imt {
namespace base {
namespace core {
namespace util {
 
template<typename mutability_policy_t, uint32_t address, uint32_t offset, uint32_t width>
struct Register {
    static_assert(width > 0, "invalid field of zero width");
    static_assert(width + offset <= 64, // std::numeric_limits<uint64_t>::digits,
        "register width overflow");
 
    static unsigned read() {
        return mutability_policy_t::read(
            reinterpret_cast<uint32_t volatile*>(address),
            offset,
            GenerateBitMask<offset, width>::value);
    }
 
    static void write(uint32_t value) {
        mutability_policy_t::write(
            reinterpret_cast<uint32_t volatile*>(address),
            offset,
            GenerateBitMask<offset, width>::value,
            value);
    }
 
    static void set() {
        mutability_policy_t::set(
            reinterpret_cast<uint32_t volatile*>(address),
            GenerateBitMask<offset, width>::value);
    }
 
    static void clear() {
        mutability_policy_t::clear(
            reinterpret_cast<uint32_t volatile*>(address),
            GenerateBitMask<offset, width>::value);
    }
};
 
} // namespace util
} // namespace core
} // namespace base
} // namespace imt
 
#endif // IMT_BASE_CORE_UTIL_REGISTER_H