// license:BSD-3-Clause // copyright-holders:Ryan Holtz /*********************************************************************** Philips SAA1043 Universal Sync Generator TOOD: - Everything. ***********************************************************************/ #include "emu.h" #include "saa1043.h" #include DEFINE_DEVICE_TYPE(SAA1043, saa1043_device, "saa1043", "Philips SAA1043") /*static*/ const uint32_t saa1043_device::s_line_counts[4] = { 624, 624, 524, 524 }; saa1043_device::saa1043_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, SAA1043, tag, owner, clock) , m_outputs(*this) , m_type(PAL) { } void saa1043_device::device_start() { m_h = attotime::from_ticks(320, clock() * 2); m_line_count = s_line_counts[m_type]; m_timers[OUT_V2] = timer_alloc(FUNC(saa1043_device::toggle_v2), this); m_timers[OUT_V2]->adjust(m_h * 6, 1); } void saa1043_device::device_reset() { for (uint32_t i = 0; i < OUT_COUNT; i++) { m_outputs[i](CLEAR_LINE); } m_outputs[OUT_V2](ASSERT_LINE); } TIMER_CALLBACK_MEMBER(saa1043_device::toggle_v2) { m_outputs[OUT_V2](1 - param); if (param) m_timers[OUT_V2]->adjust(m_h * (m_line_count - 9), 0); else m_timers[OUT_V2]->adjust(m_h * 9, 1); }