packet_access.hh

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/*
 * Copyright (c) 2015 ARM Limited
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 *
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 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
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 * modified or unmodified, in source code or in binary form.
 *
 * Copyright (c) 2006 The Regents of The University of Michigan
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
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#ifndef __MEM_PACKET_ACCESS_HH__
#define __MEM_PACKET_ACCESS_HH__
 
#include "mem/packet.hh"
#include "sim/byteswap.hh"
 
namespace gem5
{
 
template <typename T>
inline T
Packet::getRaw() const
{
    assert(flags.isSet(STATIC_DATA|DYNAMIC_DATA));
    assert(sizeof(T) <= size);
    return *(T*)data;
}
 
template <typename T>
inline void
Packet::setRaw(T v)
{
    assert(flags.isSet(STATIC_DATA|DYNAMIC_DATA));
    assert(sizeof(T) <= size);
    *(T*)data = v;
}
 
 
template <typename T>
inline T
Packet::getBE() const
{
    return betoh(getRaw<T>());
}
 
template <typename T>
inline T
Packet::getLE() const
{
    return letoh(getRaw<T>());
}
 
template <typename T>
inline T
Packet::get(ByteOrder endian) const
{
    switch (endian) {
      case ByteOrder::big:
        return getBE<T>();
 
      case ByteOrder::little:
        return getLE<T>();
 
      default:
        panic("Illegal byte order in Packet::get()\n");
    };
}
 
template <typename T>
inline void
Packet::setBE(T v)
{
    setRaw(htobe(v));
}
 
template <typename T>
inline void
Packet::setLE(T v)
{
    setRaw(htole(v));
}
 
template <typename T>
inline void
Packet::set(T v, ByteOrder endian)
{
    switch (endian) {
      case ByteOrder::big:
        return setBE<T>(v);
 
      case ByteOrder::little:
        return setLE<T>(v);
 
      default:
        panic("Illegal byte order in Packet::set()\n");
    };
}
 
} // namespace gem5
 
#endif //__MEM_PACKET_ACCESS_HH__