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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
#include "emu.h"
#include "msx_systemflags.h"
DEFINE_DEVICE_TYPE(MSX_SYSTEMFLAGS, msx_systemflags_device, "msx_systemflags", "MSX System Flags")
msx_systemflags_device::msx_systemflags_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, MSX_SYSTEMFLAGS, tag, owner, clock)
, m_initial_value(0xff)
, m_system_flags(0xff)
, m_maincpu(*this, finder_base::DUMMY_TAG)
{
}
void msx_systemflags_device::device_start()
{
m_system_flags = m_initial_value;
save_item(NAME(m_system_flags));
// Install IO read/write handlers
address_space &space = m_maincpu->space(AS_IO);
space.install_write_handler(0xf4, 0xf4, write8_delegate(FUNC(msx_systemflags_device::write), this));
space.install_read_handler(0xf4, 0xf4, read8_delegate(FUNC(msx_systemflags_device::read), this));
}
READ8_MEMBER(msx_systemflags_device::read)
{
return m_system_flags;
}
WRITE8_MEMBER(msx_systemflags_device::write)
{
m_system_flags = data;
}
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