openMSX
DynamicClock.cc
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1#include "DynamicClock.hh"
2#include "serialize.hh"
3#include <cassert>
4
5namespace openmsx {
6
7template<typename Archive>
8void DynamicClock::serialize(Archive& ar, unsigned version)
9{
10 ar.serialize("lastTick", lastTick);
11 if (ar.versionAtLeast(version, 2)) {
12 EmuDuration period = getPeriod();
13 ar.serialize("period", period);
14 setPeriod(period);
15 } else {
16 // Because of possible rounding errors 'auto f = getFreq()'
17 // followed by 'setFreq(f)' is not guaranteed to reproduce the
18 // exact same result. So in newer versions serialize the period
19 // instead of the frequency.
20 assert(Archive::IS_LOADER);
21 unsigned freq = 0;
22 ar.serialize("freq", freq);
23 setFreq(freq);
24 }
25}
27
28} // namespace openmsx
Represents a clock with a variable frequency.
Definition: DynamicClock.hh:16
void serialize(Archive &ar, unsigned version)
Definition: DynamicClock.cc:8
EmuDuration getPeriod() const
Returns the length of one clock-cycle.
void setPeriod(EmuDuration period)
Set the duration of a clock tick.
void setFreq(unsigned freq)
Change the frequency at which this clock ticks.
This file implemented 3 utility functions:
Definition: Autofire.cc:9
#define INSTANTIATE_SERIALIZE_METHODS(CLASS)
Definition: serialize.hh:1009