void mos6530_base_t::device_reset()
{
m_pa_out = 0xff;
m_pa_ddr = 0;
m_pb_out = 0xff; // a7800 One-On-One Basketball (1on1u) needs this or you can't start a game, it doesn't initialize it. (see MT6060)
m_pb_ddr = 0;
m_ie_timer = false;
m_irq_timer = false;
m_ie_edge = false;
m_irq_edge = false;
m_pa7_dir = 0;
update_pa();
update_pb();
update_irq();
edge_detect();
m_timer = 0xff;
m_prescale = 1024;
if (cur_live.state != IDLE) {
live_abort();
}
live_start();
live_run();
}
void mos6530_base_t::timer_w(offs_t offset, UINT8 data, bool ie)
{
live_sync();
m_timer = data;
switch (offset & 0x03) {
case 0: m_prescale = 1; break;
case 1: m_prescale = 8; break;
case 2: m_prescale = 64; break;
case 3: m_prescale = 1024; break;
}
m_ie_timer = ie;
if (cur_live.tm_irq != machine().time()) {
m_irq_timer = false;
}
update_irq();
if (LOG_TIMER) logerror("%s %s %s '%s' Timer value %02x prescale %u IE %u\n", machine().time().as_string(), machine().describe_context(), name(), tag(), data, m_prescale, m_ie_timer ? 1 : 0);
checkpoint();
if (cur_live.state != IDLE) {
live_abort();
}
live_start();
live_run();
}
void mos6530_base_t::device_reset()
{
m_pa_out = 0;
m_pa_ddr = 0;
m_pb_out = 0;
m_pb_ddr = 0;
m_ie_timer = false;
m_irq_timer = false;
m_ie_edge = false;
m_irq_edge = false;
m_pa7_dir = 0;
update_pa();
update_pb();
update_irq();
edge_detect();
m_timer = 0xff;
m_prescale = 1024;
if (cur_live.state != IDLE) {
live_abort();
}
live_start();
live_run();
}
