// license:BSD-3-Clause // copyright-holders:James Wallace /********************************************************************** Electromechanical Meter device **********************************************************************/ #include "emu.h" #include "meters.h" /***************************************************************************** DEVICE INTERFACE *****************************************************************************/ DEFINE_DEVICE_TYPE(METERS, meters_device, "meters", "Electromechanical meters") meters_device::meters_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, METERS, tag, owner, clock) , m_number_mtr(0) { memset(m_meter_info, 0, sizeof(m_meter_info)); } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void meters_device::device_start() { if (m_number_mtr > MAXMECHMETERS) m_number_mtr = MAXMECHMETERS; for (int i = 0; i < m_number_mtr; i++) { m_meter_info[i].reacttime = METERREACTTIME; m_meter_info[i].state = 0; m_meter_info[i].count = 0; m_meter_info[i].on = 0; m_meter_info[i].meter_timer = timer_alloc(FUNC(meters_device::count_tick), this); save_item(NAME(m_meter_info[i].state), i); save_item(NAME(m_meter_info[i].count), i); save_item(NAME(m_meter_info[i].on), i); } } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void meters_device::device_reset() { } //------------------------------------------------- // count_tick - advance the meter's counter //------------------------------------------------- TIMER_CALLBACK_MEMBER(meters_device::count_tick) { m_meter_info[param].count++; } int meters_device::get_activity(int id) { return m_meter_info[id].on; } int meters_device::update(int id, int state) { if (id >= m_number_mtr) return 0; state = state ? 1 : 0; if (m_meter_info[id].state != state) { // meter state is changing m_meter_info[id].state = state; if (state) { m_meter_info[id].on = true; m_meter_info[id].meter_timer->adjust(attotime::from_seconds(m_meter_info[id].reacttime), id); } else { m_meter_info[id].on = false; m_meter_info[id].meter_timer->adjust(attotime::never); } } return m_meter_info[id].on; }