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base: Rework bitunions so they can be more flexible.

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They are now oriented around a class which makes it easy to provide
custom setter/getter functions which let you set or read bits in an
arbitrary way.

Future additions may add the ability to add custom bitfield methods,
and index-able bitfields.

Change-Id: Ibd6d4d9e49107490f6dad30a4379a8c93bda9333
Reviewed-on: https://gem5-review.googlesource.com/7201
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
This commit is contained in:
Gabe Black
2018-01-06 05:30:46 -08:00
parent ecec887507
commit cd9450c1d9
6 changed files with 250 additions and 193 deletions
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18
src/sim/serialize.hh
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@@ -72,33 +72,33 @@ typedef std::ostream CheckpointOut;
template <class T>
void paramOut(CheckpointOut &cp, const std::string &name, const T &param);
template <typename DataType, typename BitUnion>
template <typename BitUnion>
void paramOut(CheckpointOut &cp, const std::string &name,
const BitfieldBackend::BitUnionOperators<DataType, BitUnion> &p)
const BitfieldBackend::BitUnionOperators<BitUnion> &p)
{
paramOut(cp, name, p.__data);
paramOut(cp, name, p.__storage);
}
template <class T>
void paramIn(CheckpointIn &cp, const std::string &name, T &param);
template <typename DataType, typename BitUnion>
template <typename BitUnion>
void paramIn(CheckpointIn &cp, const std::string &name,
BitfieldBackend::BitUnionOperators<DataType, BitUnion> &p)
BitfieldBackend::BitUnionOperators<BitUnion> &p)
{
paramIn(cp, name, p.__data);
paramIn(cp, name, p.__storage);
}
template <class T>
bool optParamIn(CheckpointIn &cp, const std::string &name, T &param,
bool warn = true);
template <typename DataType, typename BitUnion>
template <typename BitUnion>
bool optParamIn(CheckpointIn &cp, const std::string &name,
BitfieldBackend::BitUnionOperators<DataType, BitUnion> &p,
BitfieldBackend::BitUnionOperators<BitUnion> &p,
bool warn = true)
{
return optParamIn(cp, name, p.__data, warn);
return optParamIn(cp, name, p.__storage, warn);
}
template <class T>