channel_addr.hh

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 * to a hardware implementation of the functionality of the software
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#ifndef __BASE_CHANNEL_ADDR_HH__
#define __BASE_CHANNEL_ADDR_HH__
 
#include <ostream>
 
#include "base/addr_range.hh"
 
class ChannelAddr
{
  public:
    using Type = Addr;
 
    explicit constexpr ChannelAddr(Type _a) : a(_a) { }
 
    explicit constexpr operator Type() const { return a; }
 
    constexpr Type value() const { return a; }
 
    constexpr ChannelAddr() : a(0) { }
 
    ChannelAddr(const AddrRange &range, Addr _a)
        : a(range.removeIntlvBits(_a)) {}
 
    ChannelAddr(const ChannelAddr &) = default;
    ChannelAddr &operator=(const ChannelAddr &) = default;
 
 
    Addr getPA(const AddrRange &range) const {
        return range.addIntlvBits(a);
    }
 
    constexpr ChannelAddr operator|(const Type b) const {
        return ChannelAddr(a | b);
    }
    constexpr ChannelAddr operator&(const Type b) const {
        return ChannelAddr(a & b);
    }
 
    constexpr ChannelAddr operator>>(const int b) const {
        return ChannelAddr(a >> b);
    }
 
    constexpr ChannelAddr operator<<(const int b) const {
        return ChannelAddr(a << b);
    }
 
    constexpr ChannelAddr operator*(const Type &b) const {
        return ChannelAddr(a * b);
    }
 
    constexpr ChannelAddr operator/(const Type &b) const {
        return ChannelAddr(a / b);
    }
 
    constexpr ChannelAddr operator+(const Type &b) const {
        return ChannelAddr(a + b);
    }
 
    constexpr ChannelAddr operator-(const Type &b) const {
        return ChannelAddr(a - b);
    }
 
    constexpr ChannelAddr operator|(const ChannelAddr &b) const {
        return ChannelAddr(a | b.a);
    }
 
    constexpr ChannelAddr operator&(const ChannelAddr &b) const {
        return ChannelAddr(a & b.a);
    }
 
    constexpr ChannelAddr operator^(const ChannelAddr &b) const {
        return ChannelAddr(a ^ b.a);
    }
 
    constexpr ChannelAddr operator+(const ChannelAddr &b) const {
        return ChannelAddr(a + b.a);
    }
 
    constexpr ChannelAddr operator-(const ChannelAddr &b) const {
        return ChannelAddr(a - b.a);
    }
 
    constexpr bool operator>(const ChannelAddr &b) const { return a > b.a; }
    constexpr bool operator>=(const ChannelAddr &b) const { return a >= b.a; }
    constexpr bool operator<(const ChannelAddr &b) const { return a < b.a; }
    constexpr bool operator<=(const ChannelAddr &b) const { return a <= b.a; }
    constexpr bool operator==(const ChannelAddr &b) const { return a == b.a; }
    constexpr bool operator!=(const ChannelAddr &b) const { return a != b.a; }
 // end of api_channel_addr
 
  private:
    Type a;
};
 
class ChannelAddrRange
{
  public:
    constexpr ChannelAddrRange()
        : ChannelAddrRange(ChannelAddr(1), ChannelAddr(0)) {}
 
    constexpr ChannelAddrRange(ChannelAddr start, ChannelAddr end)
        : _start(start), _end(end) {}
 
    ChannelAddrRange(AddrRange ch_range, Addr start, Addr end);
    ChannelAddrRange(AddrRange ch_range, AddrRange range);
 
    constexpr ChannelAddrRange(const ChannelAddrRange &) = default;
 
    constexpr ChannelAddr size() const { return _end - _start + 1; }
 
    constexpr bool valid() const { return _start <= _end; }
 
    constexpr ChannelAddr start() const { return _start; }
    constexpr ChannelAddr end() const { return _end; }
 
    constexpr bool contains(ChannelAddr a) const {
        return a >= _start && a <= _end;
    }
 // end of api_channel_addr
 
  protected:
    ChannelAddr _start;
    ChannelAddr _end;
};
 
namespace std
{
    template<>
    struct hash<ChannelAddr>
    {
        typedef ChannelAddr argument_type;
        typedef std::size_t result_type;
 
        result_type
        operator()(argument_type const &a) const noexcept {
            return std::hash<ChannelAddr::Type>{}(
                static_cast<argument_type::Type>(a));
        }
    };
}
 
std::ostream &operator<<(std::ostream &out, const ChannelAddr &addr);
 
#endif // __BASE_CHANNEL_ADDR_HH__