// license:BSD-3-Clause // copyright-holders:Fabio Priuli /*********************************************************************************************************** Magnavox The Voice emulation TODO: - load speech ROM from softlist - move external speech rom for S.I.D. the Spellbinder into the softlist entry ***********************************************************************************************************/ #include "emu.h" #include "voice.h" #include "speaker.h" //------------------------------------------------- // o2_voice_device - constructor //------------------------------------------------- DEFINE_DEVICE_TYPE(O2_ROM_VOICE, o2_voice_device, "o2_voice", "Odyssey 2 The Voice Passthrough Cart") o2_voice_device::o2_voice_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : o2_rom_device(mconfig, O2_ROM_VOICE, tag, owner, clock) , m_speech(*this, "sp0256_speech") , m_subslot(*this, "subslot") , m_lrq_state(0) { } void o2_voice_device::device_start() { save_item(NAME(m_lrq_state)); } //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void o2_voice_device::device_add_mconfig(machine_config &config) { SPEAKER(config, "mono").front_center(); SP0256(config, m_speech, 3120000); m_speech->data_request_callback().set(FUNC(o2_voice_device::lrq_callback)); // The Voice uses a speaker with its own volume control so the relative volumes to use are subjective, these sound good m_speech->add_route(ALL_OUTPUTS, "mono", 1.00); O2_CART_SLOT(config, m_subslot, o2_cart, nullptr); } ROM_START( o2voice ) ROM_REGION( 0x10000, "sp0256_speech", 0 ) // SP0256B-019 Speech chip w/2KiB mask rom ROM_LOAD( "sp0256b-019.bin", 0x1000, 0x0800, CRC(4bb43724) SHA1(49f5326ad45392dc96c89d1d4e089a20bd21e609) ) /* A note about "The Voice": Two versions of "The Voice" exist: * An earlier version with eight 2KiB speech roms, spr016-??? through spr016-??? on a small daughterboard * A later version with one 16KiB speech rom, spr128-003, mounted directly on the mainboard The rom contents of these two versions are EXACTLY the same. Both versions have an sp0256b-019 speech chip, which has 2KiB of its own internal speech data Thanks to kevtris for this info. - LN */ // External 16KiB speech ROM (spr128-003) from "The Voice" ROM_LOAD( "spr128-003.bin", 0x4000, 0x4000, CRC(509367b5) SHA1(0f31f46bc02e9272885779a6dd7102c78b18895b) ) // Additional External 16KiB speech ROM (spr128-004) from S.I.D. the Spellbinder ROM_LOAD( "spr128-004.bin", 0x8000, 0x4000, CRC(e79dfb75) SHA1(37f33d79ffd1739d7c2f226b010a1eac28d74ca0) ) ROM_END const tiny_rom_entry *o2_voice_device::device_rom_region() const { return ROM_NAME( o2voice ); } WRITE_LINE_MEMBER(o2_voice_device::lrq_callback) { m_lrq_state = state; } WRITE8_MEMBER(o2_voice_device::io_write) { if (data & 0x20) m_speech->ald_w(offset & 0x7f); else m_speech->reset(); }