Autofire.cc

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#include "Autofire.hh"
#include <algorithm>
#include <cassert>

namespace openmsx {

Autofire::Autofire(CommandController& commandController,
                   unsigned newMinInts, unsigned newMaxInts, string_ref name)
        : min_ints(std::max(newMinInts, 1u))
        , max_ints(std::max(newMaxInts, min_ints + 1))
        , speedSetting(commandController, name,
                "controls the speed of this autofire circuit", 0, 0, 100)
        , clock(EmuTime::zero)
{
        setClock();
        speedSetting.attach(*this);
}

Autofire::~Autofire()
{
        speedSetting.detach(*this);
}

void Autofire::setClock()
{
        int speed = speedSetting.getInt();
        clock.setFreq(
            (2 * 50 * 60) / (max_ints - (speed * (max_ints - min_ints)) / 100));
}

void Autofire::update(const Setting& setting)
{
        (void)setting;
        assert(&setting == &speedSetting);
        setClock();
}

bool Autofire::getSignal(EmuTime::param time)
{
        return speedSetting.getInt() == 0 ?
                false : clock.getTicksTill(time) & 1;
}

} // namespace openmsx