// license:BSD-3-Clause // copyright-holders:Angelo Salese,Takahiro Nogi /*************************************************************************** Nichibutsu sound HW Shared component between niyanpai.cpp and csplayh5.cpp Uses a TMPZ84C011 with YM3812 and two DACs TODO: - DVD sound routing in here ***************************************************************************/ #include "emu.h" #include "nichisnd.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** // device type definition DEFINE_DEVICE_TYPE(NICHISND, nichisnd_device, "nichisnd", "Nichibutsu Sound Device") //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // nichisnd_device - constructor //------------------------------------------------- nichisnd_device::nichisnd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, NICHISND, tag, owner, clock), m_soundlatch(*this, "soundlatch"), m_sound_rom(*this, "audiorom") { } void nichisnd_device::nichisnd_map(address_map &map) { map(0x0000, 0x77ff).rom().region("audiorom", 0); map(0x7800, 0x7fff).ram(); map(0x8000, 0xffff).bankr("soundbank"); } void nichisnd_device::nichisnd_io_map(address_map &map) { map(0x80, 0x81).mirror(0xff00).w("ymsnd", FUNC(ym3812_device::write)); } WRITE8_MEMBER(nichisnd_device::soundbank_w) { membank("soundbank")->set_entry(data & 0x03); } WRITE8_MEMBER(nichisnd_device::soundlatch_clear_w) { if (!(data & 0x01)) m_soundlatch->clear_w(); } //------------------------------------------------- // add_device_mconfig - device-specific machine // configuration addiitons //------------------------------------------------- static const z80_daisy_config daisy_chain[] = { TMPZ84C011_DAISY_INTERNAL, { nullptr } }; void nichisnd_device::device_add_mconfig(machine_config &config) { tmpz84c011_device& audiocpu(TMPZ84C011(config, "audiocpu", 8000000)); /* TMPZ84C011, 8.00 MHz */ audiocpu.set_daisy_config(daisy_chain); audiocpu.set_addrmap(AS_PROGRAM, &nichisnd_device::nichisnd_map); audiocpu.set_addrmap(AS_IO, &nichisnd_device::nichisnd_io_map); audiocpu.in_pd_callback().set(m_soundlatch, FUNC(generic_latch_8_device::read)); audiocpu.out_pa_callback().set(FUNC(nichisnd_device::soundbank_w)); audiocpu.out_pb_callback().set("dac1", FUNC(dac_byte_interface::data_w)); audiocpu.out_pc_callback().set("dac2", FUNC(dac_byte_interface::data_w)); audiocpu.out_pe_callback().set(FUNC(nichisnd_device::soundlatch_clear_w)); audiocpu.zc0_callback().set("audiocpu", FUNC(tmpz84c011_device::trg3)); /* sound hardware */ SPEAKER(config, "speaker").front_center(); GENERIC_LATCH_8(config, m_soundlatch); YM3812(config, "ymsnd", 4000000).add_route(ALL_OUTPUTS, "speaker", 1.0); DAC_8BIT_R2R(config, "dac1", 0).add_route(ALL_OUTPUTS, "speaker", 0.37); // unknown DAC DAC_8BIT_R2R(config, "dac2", 0).add_route(ALL_OUTPUTS, "speaker", 0.37); // unknown DAC voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref")); vref.add_route(0, "dac1", 1.0, DAC_VREF_POS_INPUT).add_route(0, "dac1", -1.0, DAC_VREF_NEG_INPUT); vref.add_route(0, "dac2", 1.0, DAC_VREF_POS_INPUT).add_route(0, "dac2", -1.0, DAC_VREF_NEG_INPUT); } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void nichisnd_device::device_start() { uint8_t *SNDROM = m_sound_rom; // sound program patch SNDROM[0x0213] = 0x00; // DI -> NOP // initialize sound rom bank membank("soundbank")->configure_entries(0, 3, m_sound_rom + 0x8000, 0x8000); membank("soundbank")->set_entry(0); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void nichisnd_device::device_reset() { } //************************************************************************** // READ/WRITE HANDLERS //************************************************************************** // use this to connect to the sound board WRITE8_MEMBER(nichisnd_device::sound_host_command_w) { m_soundlatch->write(data); }