// license:BSD-3-Clause // copyright-holders:giulioz // Initial skeleton based on the RE work by nukeykt #include "emu.h" #include "roland_gp.h" // Original chip (GP-2) TODO // DEFINE_DEVICE_TYPE(TC24SC201AF, tc6116_device, "tc24sc201af", "Roland GP TC24SC201AF PCM") // Newer chip (GP-4) including bugfixes and H8/500 cpu glue logic DEFINE_DEVICE_TYPE(TC6116, tc6116_device, "tc6116", "Roland GP TC6116 PCM") tc6116_device::tc6116_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, TC6116, tag, owner, clock) , device_sound_interface(mconfig, *this) , device_rom_interface(mconfig, *this) , m_int_callback(*this) , m_clock(0) , m_rate(0) , m_stream(nullptr) , m_sel_chn(0) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void tc6116_device::device_start() { m_clock = clock() / 2; m_rate = m_clock / 512; // usually 32 KHz m_stream = stream_alloc(0, 2, m_rate); logerror("Roland GP: Clock %u, Rate %u\n", m_clock, m_rate); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void tc6116_device::device_reset() { m_int_callback(CLEAR_LINE); } //------------------------------------------------- // rom_bank_pre_change - refresh the stream if the // ROM banking changes //------------------------------------------------- void tc6116_device::rom_bank_pre_change() { // unused right now m_stream->update(); } u8 tc6116_device::read(offs_t offset) { return 0xff; } void tc6116_device::write(offs_t offset, u8 data) { } //------------------------------------------------- // sound_stream_update - handle a stream update //------------------------------------------------- void tc6116_device::sound_stream_update(sound_stream &stream) { }