// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Millsgrade Voxbox Speech Synthesiser **********************************************************************/ #include "emu.h" #include "voxbox.h" #include "speaker.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(ELECTRON_VOXBOX, electron_voxbox_device, "electron_voxbox", "Millsgrade Voxbox Speech Synthesiser") //------------------------------------------------- // ROM( voxbox ) //------------------------------------------------- ROM_START( voxbox ) ROM_REGION(0x10000, "sp0256", 0) ROM_LOAD( "sp0256a-al2.bin", 0x1000, 0x0800, CRC(b504ac15) SHA1(e60fcb5fa16ff3f3b69d36c7a6e955744d3feafc) ) ROM_END //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const tiny_rom_entry *electron_voxbox_device::device_rom_region() const { return ROM_NAME( voxbox ); } //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void electron_voxbox_device::device_add_mconfig(machine_config &config) { SPEAKER(config, "mono").front_center(); SP0256(config, m_nsp, DERIVED_CLOCK(1, 4)); m_nsp->data_request_callback().set(FUNC(electron_voxbox_device::lrq_cb)); m_nsp->add_route(ALL_OUTPUTS, "mono", 1.0); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // electron_voxbox_device - constructor //------------------------------------------------- electron_voxbox_device::electron_voxbox_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ELECTRON_VOXBOX, tag, owner, clock) , device_electron_expansion_interface(mconfig, *this) , m_nsp(*this, "sp0256") , m_nmi(1) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void electron_voxbox_device::device_start() { save_item(NAME(m_nmi)); } //------------------------------------------------- // expbus_w - expansion data write //------------------------------------------------- void electron_voxbox_device::expbus_w(offs_t offset, uint8_t data) { if ((offset & 0xff00) == 0xc000) { m_nsp->ald_w(offset & 0x3f); } } void electron_voxbox_device::lrq_cb(int state) { if (state != m_nmi) { m_nmi = state; m_slot->nmi_w(state); } }