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-rw-r--r--src/mame/audio/bally.cpp840
1 files changed, 0 insertions, 840 deletions
diff --git a/src/mame/audio/bally.cpp b/src/mame/audio/bally.cpp
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index fbe8453f795..00000000000
--- a/src/mame/audio/bally.cpp
+++ /dev/null
@@ -1,840 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Mike Harris, Quench
-/***************************************************************************
-
- bally.cpp
-
- Functions to emulate the various Bally pinball sound boards.
-
-***************************************************************************/
-
-#include "emu.h"
-#include "audio/bally.h"
-
-
-//**************************************************************************
-// GLOBAL VARIABLES
-//**************************************************************************
-
-DEFINE_DEVICE_TYPE(BALLY_AS2888, bally_as2888_device, "as2888", "Bally AS2888 Sound Board")
-DEFINE_DEVICE_TYPE(BALLY_AS3022, bally_as3022_device, "as3022", "Bally AS3022 Sound Board")
-DEFINE_DEVICE_TYPE(BALLY_SOUNDS_PLUS, bally_sounds_plus_device, "sounds_plus", "Bally Sounds Plus w/ Vocalizer Board")
-DEFINE_DEVICE_TYPE(BALLY_CHEAP_SQUEAK, bally_cheap_squeak_device, "cheap_squeak", "Bally Cheap Squeak Board")
-DEFINE_DEVICE_TYPE(BALLY_SQUAWK_N_TALK, bally_squawk_n_talk_device, "squawk_n_talk", "Bally Squawk & Talk Board")
-DEFINE_DEVICE_TYPE(BALLY_SQUAWK_N_TALK_AY, bally_squawk_n_talk_ay_device, "squawk_n_talk_ay", "Bally Squawk & Talk w/ AY8910 Board")
-
-
-//**************************************************************************
-// AS2888
-//**************************************************************************
-static const discrete_mixer_desc as2888_digital_mixer_info =
-{
- DISC_MIXER_IS_RESISTOR, /* type */
- {RES_K(33), RES_K(3.9)}, /* r{} */
- {0, 0, 0, 0}, /* r_node */
- {0, 0}, /* c{} */
- 0, /* rI */
-// RES_VOLTAGE_DIVIDER(RES_K(10), RES_R(360)), /* rF */
- RES_K(10), /* rF */ // not really
- CAP_U(0.01), /* cF */
- 0, /* cAmp */
- 0, /* vRef */
- 0.00002 /* gain */
-};
-
-static const discrete_op_amp_filt_info as2888_preamp_info = {
- RES_K(10), 0, RES_R(470), 0, /* r1 .. r4 */
- RES_K(10), /* rF */
- CAP_U(1), /* C1 */
- 0, /* C2 */
- 0, /* C3 */
- 0.0, /* vRef */
- 12.0, /* vP */
- -12.0, /* vN */
-};
-
-static DISCRETE_SOUND_START(as2888_discrete)
-
- DISCRETE_INPUT_DATA(NODE_08) // Start Sustain Attenuation from 555 circuit
- DISCRETE_INPUT_LOGIC(NODE_01) // Binary Counter B output (divide by 1) T2
- DISCRETE_INPUT_LOGIC(NODE_04) // Binary Counter D output (divide by 4) T3
-
- DISCRETE_DIVIDE(NODE_11, 1, NODE_01, 1) // 2
- DISCRETE_DIVIDE(NODE_14, 1, NODE_04, 1)
-
-
- DISCRETE_RCFILTER(NODE_06, NODE_14, RES_K(15), CAP_U(0.1)) // T4 filter
-#if 0
- DISCRETE_RCFILTER(NODE_05, NODE_11, RES_K(33), CAP_U(0.01)) // T1 filter
- DISCRETE_ADDER2(NODE_07, 1, NODE_05, NODE_06)
-#else
-
- DISCRETE_MIXER2(NODE_07, 1, NODE_11, NODE_06, &as2888_digital_mixer_info) // Mix and filter T1 and T4 together
-#endif
- DISCRETE_RCDISC5(NODE_87, 1, NODE_08, RES_K(150), CAP_U(1.0))
-
- DISCRETE_RCFILTER_VREF(NODE_88,NODE_87,RES_M(1),CAP_U(0.01),2)
- DISCRETE_MULTIPLY(NODE_09, NODE_07, NODE_88) // Apply sustain
-
- DISCRETE_OP_AMP_FILTER(NODE_20, 1, NODE_09, 0, DISC_OP_AMP_FILTER_IS_HIGH_PASS_1, &as2888_preamp_info)
-
- DISCRETE_CRFILTER(NODE_25, NODE_20, RES_M(100), CAP_U(0.05)) // Resistor is fake. Capacitor in series between pre-amp and output amp.
-
- DISCRETE_GAIN(NODE_30, NODE_25, 50) // Output amplifier LM380 fixed inbuilt gain of 50
-
- DISCRETE_OUTPUT(NODE_30, 10000000) // 17000000
-DISCRETE_SOUND_END
-
-//-------------------------------------------------
-// sound_select - handle an external write to the board
-//-------------------------------------------------
-
-void bally_as2888_device::sound_select(uint8_t data)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_as2888_device::sound_select_sync), this), data);
-}
-
-
-TIMER_CALLBACK_MEMBER(bally_as2888_device::sound_select_sync)
-{
- m_sound_select = param ^ 0x10;
-}
-
-//-------------------------------------------------
-// sound_int - handle an external sound interrupt to the board
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_as2888_device::sound_int)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_as2888_device::sound_int_sync), this), state);
-}
-
-TIMER_CALLBACK_MEMBER(bally_as2888_device::sound_int_sync)
-{
- if (param)
- {
- m_snd_sustain_timer->adjust(attotime::from_msec(5));
- m_discrete->write(NODE_08, 11); // 11 volt pulse
- }
-}
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void bally_as2888_device::device_add_mconfig(machine_config &config)
-{
- DISCRETE(config, m_discrete, as2888_discrete);
- m_discrete->add_route(ALL_OUTPUTS, *this, 1.00, AUTO_ALLOC_INPUT, 0);
-
- TIMER(config, "timer_s_freq").configure_periodic(FUNC(bally_as2888_device::timer_s), attotime::from_hz(353000)); // Inverter clock on AS-2888 sound board
- TIMER(config, m_snd_sustain_timer).configure_generic(FUNC(bally_as2888_device::timer_as2888));
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void bally_as2888_device::device_start()
-{
- save_item(NAME(m_sound_select));
- save_item(NAME(m_snd_sel));
- save_item(NAME(m_snd_tone_gen));
- save_item(NAME(m_snd_div));
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(bally_as2888_device::timer_s)
-{
- m_snd_tone_gen--;
-
- if ((m_snd_tone_gen == 0) && (m_snd_sel != 0x01))
- {
- m_snd_tone_gen = m_snd_sel;
- m_snd_div++;
-
- m_discrete->write(NODE_04, BIT(m_snd_div, 2) * 1);
- m_discrete->write(NODE_01, BIT(m_snd_div, 0) * 1);
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(bally_as2888_device::timer_as2888)
-{
- m_snd_sel = m_snd_prom[m_sound_select];
- m_snd_sel = bitswap<8>(m_snd_sel,0,1,2,3,4,5,6,7);
- m_snd_tone_gen = m_snd_sel;
-
- m_discrete->write(NODE_08, 0);
- m_snd_sustain_timer->adjust(attotime::never);
-}
-
-
-//**************************************************************************
-// AS3022
-//**************************************************************************
-
-//--------------------------------------------------------------------------
-// IO ports
-//--------------------------------------------------------------------------
-
-static INPUT_PORTS_START(as3022)
- PORT_START("SW1")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE3 ) PORT_NAME("Sound Test") PORT_CHANGED_MEMBER(DEVICE_SELF, bally_as3022_device, sw1, 0)
-INPUT_PORTS_END
-
-ioport_constructor bally_as3022_device::device_input_ports() const
-{
- return INPUT_PORTS_NAME(as3022);
-}
-
-INPUT_CHANGED_MEMBER(bally_as3022_device::sw1)
-{
- if (newval != oldval)
- m_cpu->set_input_line(INPUT_LINE_NMI, (newval ? ASSERT_LINE : CLEAR_LINE));
-}
-
-//-------------------------------------------------
-// sound_select - handle an external write to the board
-//-------------------------------------------------
-
-void bally_as3022_device::sound_select(uint8_t data)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_as3022_device::sound_select_sync), this), data);
-}
-
-
-TIMER_CALLBACK_MEMBER(bally_as3022_device::sound_select_sync)
-{
- m_sound_select = param;
-}
-
-//-------------------------------------------------
-// sound_int - handle an external sound interrupt to the board
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_as3022_device::sound_int)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_as3022_device::sound_int_sync), this), state);
-}
-
-TIMER_CALLBACK_MEMBER(bally_as3022_device::sound_int_sync)
-{
- m_pia->ca1_w(param);
-}
-
-//-------------------------------------------------
-// pia_irq_w - IRQ line state changes
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_as3022_device::pia_irq_w)
-{
- int combined_state = m_pia->irq_a_state() | m_pia->irq_b_state();
- m_cpu->set_input_line(M6802_IRQ_LINE, combined_state ? ASSERT_LINE : CLEAR_LINE);
-}
-
-//-------------------------------------------------
-// CPU map, from schematics
-//-------------------------------------------------
-
-void bally_as3022_device::as3022_map(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0x1fff); // A13-15 are unconnected
- map(0x0000, 0x007f).mirror(0x0f00).ram();
- map(0x0080, 0x0083).mirror(0x0f7c).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- map(0x1000, 0x1fff).rom(); // 4k RAM space, but could be jumpered for 2k
-}
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void bally_as3022_device::device_add_mconfig(machine_config &config)
-{
- M6808(config, m_cpu, DERIVED_CLOCK(1, 1));
- m_cpu->set_addrmap(AS_PROGRAM, &bally_as3022_device::as3022_map);
-
- PIA6821(config, m_pia, 0);
- m_pia->readpa_handler().set(FUNC(bally_as3022_device::pia_porta_r));
- m_pia->writepa_handler().set(FUNC(bally_as3022_device::pia_porta_w));
- m_pia->writepb_handler().set(FUNC(bally_as3022_device::pia_portb_w));
- m_pia->cb2_handler().set(FUNC(bally_as3022_device::pia_cb2_w));
- m_pia->irqa_handler().set(FUNC(bally_as3022_device::pia_irq_w));
- m_pia->irqb_handler().set(FUNC(bally_as3022_device::pia_irq_w));
-
- for (required_device<filter_rc_device> &filter : m_ay_filters)
- // TODO: Calculate exact filter values. An AC filter is good enough for now
- // and required as the chip likes to output a DC offset at idle.
- FILTER_RC(config, filter).set_ac().add_route(ALL_OUTPUTS, *this, 1.0);
- AY8910(config, m_ay, DERIVED_CLOCK(1, 4));
- m_ay->add_route(0, "ay_filter0", 0.33);
- m_ay->add_route(1, "ay_filter1", 0.33);
- m_ay->add_route(2, "ay_filter2", 0.33);
- m_ay->port_a_read_callback().set(FUNC(bally_as3022_device::ay_io_r));
- m_ay->add_route(ALL_OUTPUTS, *this, 0.33, AUTO_ALLOC_INPUT, 0);
-}
-
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void bally_as3022_device::device_start()
-{
- // Set volumes to a sane default.
- m_ay->set_volume(0, 0);
- m_ay->set_volume(1, 0);
- m_ay->set_volume(2, 0);
-
- save_item(NAME(m_bc1));
- save_item(NAME(m_bdir));
- save_item(NAME(m_sound_select));
- save_item(NAME(m_ay_data));
-}
-
-//-------------------------------------------------
-// pia_porta_r - PIA port A reads
-//-------------------------------------------------
-
-uint8_t bally_as3022_device::pia_porta_r()
-{
- if (m_bc1 && !m_bdir)
- {
- m_ay_data = m_ay->data_r();
- return m_ay_data;
- }
- else
- {
- // Nothing is active on the bus, so return open bus.
- return 0xff;
- }
-}
-
-//-------------------------------------------------
-// pia_porta_w - PIA port A writes
-//-------------------------------------------------
-
-void bally_as3022_device::pia_porta_w(uint8_t data)
-{
- if (m_bc1 && !m_bdir)
- {
- logerror("PIA port A bus contention!\n");
- }
- m_ay_data = data;
- update_ay_bus();
-}
-
-//-------------------------------------------------
-// pia_portb_w - PIA port B writes
-//-------------------------------------------------
-
-void bally_as3022_device::pia_portb_w(uint8_t data)
-{
- m_bc1 = BIT(data, 0);
- m_bdir = BIT(data, 1);
- if (m_bc1 && !m_bdir)
- {
- m_ay_data = m_ay->data_r();
- }
- update_ay_bus();
-}
-
-//-------------------------------------------------
-// pia_cb2_w - PIA CB2 writes
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_as3022_device::pia_cb2_w)
-{
- // This pin is hooked up to the amp, and disables sounds when hi
- if (state)
- {
- m_ay->set_volume(0, 0);
- m_ay->set_volume(1, 0);
- m_ay->set_volume(2, 0);
- }
- else
- {
- m_ay->set_volume(0, 0xff);
- m_ay->set_volume(1, 0xff);
- m_ay->set_volume(2, 0xff);
- }
-}
-
-//-------------------------------------------------
-// ay_io_r - AY8912 IO A reads (B is unconnected)
-//-------------------------------------------------
-
-uint8_t bally_as3022_device::ay_io_r()
-{
- // The two high bits are unconnected, the others are inverted.
- return ~m_sound_select & 0x3f;
-}
-
-void bally_as3022_device::update_ay_bus()
-{
- if (m_bc1 && m_bdir)
- {
- m_ay->address_w(m_ay_data);
- }
- else if (!m_bc1 && m_bdir)
- {
- m_ay->data_w(m_ay_data);
- }
-}
-
-
-//**************************************************************************
-// SOUNDS PLUS WITH VOCALIZER
-//**************************************************************************
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void bally_sounds_plus_device::device_add_mconfig(machine_config &config)
-{
- bally_as3022_device::device_add_mconfig(config);
-
- m_cpu->set_addrmap(AS_PROGRAM, &bally_sounds_plus_device::sounds_plus_map);
- m_pia->writepb_handler().set(FUNC(bally_sounds_plus_device::vocalizer_pia_portb_w));
-
- // TODO: Calculate exact filter values. An AC filter is good enough for now
- // and required as the chip likes to output a DC offset at idle.
- FILTER_RC(config, m_mc3417_filter).set_ac();
- m_mc3417_filter->add_route(ALL_OUTPUTS, *this, 1.0);
- MC3417(config, m_mc3417, 0);
- // A gain of 2.2 is a guess. It sounds about loud enough and doesn't clip.
- m_mc3417->add_route(ALL_OUTPUTS, "mc3417_filter", 2.2);
-}
-
-//-------------------------------------------------
-// CPU map, from schematics
-//-------------------------------------------------
-
-void bally_sounds_plus_device::sounds_plus_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x007f).mirror(0x7f00).ram();
- map(0x0080, 0x0083).mirror(0x7f7c).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- map(0x8000, 0xffff).rom();
-}
-
-//-------------------------------------------------
-// pia_portb_w - PIA port B writes
-//-------------------------------------------------
-
-void bally_sounds_plus_device::vocalizer_pia_portb_w(uint8_t data)
-{
- bool speech_clock = BIT(data, 6);
- bool speech_data = BIT(data, 7);
- m_mc3417->clock_w(speech_clock ? 1 : 0);
- m_mc3417->digit_w(speech_data ? 1 : 0);
- pia_portb_w(data);
-}
-
-
-//**************************************************************************
-// Cheap Squeak
-//**************************************************************************
-
-//--------------------------------------------------------------------------
-// IO ports
-//--------------------------------------------------------------------------
-static INPUT_PORTS_START(cheap_squeak)
- PORT_START("SW1")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE3 ) PORT_NAME("Sound Test") PORT_CHANGED_MEMBER(DEVICE_SELF, bally_cheap_squeak_device, sw1, 0)
-INPUT_PORTS_END
-
-ioport_constructor bally_cheap_squeak_device::device_input_ports() const
-{
- return INPUT_PORTS_NAME(cheap_squeak);
-}
-
-INPUT_CHANGED_MEMBER(bally_cheap_squeak_device::sw1)
-{
- if (newval != oldval)
- m_cpu->set_input_line(INPUT_LINE_NMI, (newval ? ASSERT_LINE : CLEAR_LINE));
-}
-
-//-------------------------------------------------
-// sound_select - handle an external write to the board
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::sound_select(uint8_t data)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_cheap_squeak_device::sound_select_sync), this), data);
-}
-
-TIMER_CALLBACK_MEMBER(bally_cheap_squeak_device::sound_select_sync)
-{
- m_sound_select = param;
-}
-
-//-------------------------------------------------
-// sound_int - handle an external sound interrupt to the board
-//-------------------------------------------------
-WRITE_LINE_MEMBER(bally_cheap_squeak_device::sound_int)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_cheap_squeak_device::sound_int_sync), this), state);
-}
-
-TIMER_CALLBACK_MEMBER(bally_cheap_squeak_device::sound_int_sync)
-{
- m_sound_int = param;
- m_cpu->set_input_line(M6801_TIN_LINE, (m_sound_int ? ASSERT_LINE : CLEAR_LINE));
- update_led();
-}
-
-//-------------------------------------------------
-// CPU map, from schematics
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::cheap_squeak_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0080, 0x00ff).ram();
- map(0x8000, 0x9fff).mirror(0x2000).rom();
- map(0xc000, 0xdfff).mirror(0x2000).rom();
-}
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::device_add_mconfig(machine_config &config)
-{
- M6803(config, m_cpu, DERIVED_CLOCK(1, 1));
- m_cpu->set_addrmap(AS_PROGRAM, &bally_cheap_squeak_device::cheap_squeak_map);
- m_cpu->out_p1_cb().set(FUNC(bally_cheap_squeak_device::out_p1_cb));
- m_cpu->in_p2_cb().set(FUNC(bally_cheap_squeak_device::in_p2_cb));
- m_cpu->out_p2_cb().set(FUNC(bally_cheap_squeak_device::out_p2_cb));
-
- ZN429E(config, "dac", 0).add_route(ALL_OUTPUTS, *this, 1.00, AUTO_ALLOC_INPUT, 0);
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::device_start()
-{
- m_sound_ack_w_handler.resolve();
- save_item(NAME(m_sound_select));
- save_item(NAME(m_sound_int));
-}
-
-//-------------------------------------------------
-// out_p1_cb - IO port 1 write
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::out_p1_cb(uint8_t data)
-{
- m_dac->write(data);
-}
-
-//-------------------------------------------------
-// in_p2_cb - IO port 2 read
-//-------------------------------------------------
-
-uint8_t bally_cheap_squeak_device::in_p2_cb()
-{
- int sound_int_bit = m_sound_int ? 1 : 0;
- return 0x40 | (m_sound_select & 0x0f) << 1 | sound_int_bit;
-}
-
-//-------------------------------------------------
-// out_p2_cb - IO port 2 write
-//-------------------------------------------------
-
-void bally_cheap_squeak_device::out_p2_cb(uint8_t data)
-{
- m_sound_ack = BIT(data, 0);
- if (!m_sound_ack_w_handler.isnull())
- {
- m_sound_ack_w_handler(m_sound_ack);
- }
- update_led();
-}
-
-void bally_cheap_squeak_device::update_led()
-{
- // Either input or output can pull the led line high
- bool led_state = m_sound_int || m_sound_ack;
- machine().output().set_value("sound_led0", led_state);
-}
-
-
-//**************************************************************************
-// Squawk & Talk
-//**************************************************************************
-
-//--------------------------------------------------------------------------
-// IO ports
-//--------------------------------------------------------------------------
-static INPUT_PORTS_START(squawk_n_talk)
- PORT_START("SW1")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE3 ) PORT_NAME("SW1") PORT_CHANGED_MEMBER(DEVICE_SELF, bally_squawk_n_talk_device, sw1, 0)
-INPUT_PORTS_END
-
-ioport_constructor bally_squawk_n_talk_device::device_input_ports() const
-{
- return INPUT_PORTS_NAME(squawk_n_talk);
-}
-
-INPUT_CHANGED_MEMBER(bally_squawk_n_talk_device::sw1)
-{
- if (newval != oldval)
- m_cpu->set_input_line(INPUT_LINE_NMI, (newval ? ASSERT_LINE : CLEAR_LINE));
-}
-
-//-------------------------------------------------
-// sound_select - handle an external write to the board
-//-------------------------------------------------
-
-void bally_squawk_n_talk_device::sound_select(uint8_t data)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_squawk_n_talk_device::sound_select_sync), this), data);
-}
-
-TIMER_CALLBACK_MEMBER(bally_squawk_n_talk_device::sound_select_sync)
-{
- m_sound_select = param;
-}
-
-//-------------------------------------------------
-// sound_int - handle an external sound interrupt to the board
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_squawk_n_talk_device::sound_int)
-{
- machine().scheduler().synchronize(timer_expired_delegate(FUNC(bally_squawk_n_talk_device::sound_int_sync), this), state);
-}
-
-TIMER_CALLBACK_MEMBER(bally_squawk_n_talk_device::sound_int_sync)
-{
- // the line runs though in inverter
- m_pia2->cb1_w(!param);
-}
-
-//-------------------------------------------------
-// CPU map, from schematics
-//-------------------------------------------------
-
-void bally_squawk_n_talk_device::squawk_n_talk_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0080, 0x0083).mirror(0x4f6c).rw("pia2", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- map(0x0090, 0x0093).mirror(0x4f6c).rw("pia1", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- map(0x1000, 0x1000).mirror(0x40ff).w("dac", FUNC(dac_byte_interface::data_w));
- map(0x8000, 0x8fff).mirror(0x4000).rom(); // U2
- map(0x9000, 0x9fff).mirror(0x4000).rom(); // U3
- map(0xa000, 0xafff).mirror(0x4000).rom(); // U4
- map(0xb000, 0xbfff).mirror(0x4000).rom(); // U5
-}
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void bally_squawk_n_talk_device::device_add_mconfig(machine_config &config)
-{
- M6802(config, m_cpu, DERIVED_CLOCK(1, 1)); // could also be jumpered to use a 6808
- m_cpu->set_addrmap(AS_PROGRAM, &bally_squawk_n_talk_device::squawk_n_talk_map);
-
- PIA6821(config, m_pia1, 0);
- m_pia1->readpa_handler().set(m_tms5200, FUNC(tms5220_device::status_r));
- m_pia1->writepa_handler().set(m_tms5200, FUNC(tms5220_device::data_w));
- m_pia1->writepb_handler().set(FUNC(bally_squawk_n_talk_device::pia1_portb_w));
- m_pia1->irqa_handler().set(FUNC(bally_squawk_n_talk_device::pia_irq_w));
- m_pia1->irqb_handler().set(FUNC(bally_squawk_n_talk_device::pia_irq_w));
-
- PIA6821(config, m_pia2, 0);
- m_pia2->readpa_handler().set(FUNC(bally_squawk_n_talk_device::pia2_porta_r));
- m_pia2->ca2_handler().set(FUNC(bally_squawk_n_talk_device::pia2_ca2_w));
- m_pia2->irqa_handler().set(FUNC(bally_squawk_n_talk_device::pia_irq_w));
- m_pia2->irqb_handler().set(FUNC(bally_squawk_n_talk_device::pia_irq_w));
-
- FILTER_RC(config, m_dac_filter);
- m_dac_filter->add_route(ALL_OUTPUTS, *this, 1.0);
- m_dac_filter->set_rc(filter_rc_device::HIGHPASS, 2000, 0, 0, CAP_U(2));
- AD558(config, "dac", 0).add_route(ALL_OUTPUTS, "dac_filter", 0.75);
-
- // TODO: Calculate exact filter values. An AC filter is good enough for now
- // and required as the chip likes to output a DC offset at idle.
- FILTER_RC(config, m_speech_filter).set_ac();
- m_speech_filter->add_route(ALL_OUTPUTS, *this, 1.0);
- TMS5200(config, m_tms5200, 640000);
- m_tms5200->add_route(ALL_OUTPUTS, "speech_filter", 1.0);
- m_tms5200->ready_cb().set(m_pia1, FUNC(pia6821_device::ca2_w));
- m_tms5200->irq_cb().set(m_pia1, FUNC(pia6821_device::cb1_w));
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void bally_squawk_n_talk_device::device_start()
-{
- save_item(NAME(m_sound_select));
-}
-
-//-------------------------------------------------
-// pia1_portb_w - PIA 1 port B write
-//-------------------------------------------------
-
-void bally_squawk_n_talk_device::pia1_portb_w(uint8_t data)
-{
- m_tms5200->rsq_w(BIT(data, 0));
- m_tms5200->wsq_w(BIT(data, 1));
-}
-
-//-------------------------------------------------
-// pia2_porta_r - PIA 2 port A reads
-//-------------------------------------------------
-
-uint8_t bally_squawk_n_talk_device::pia2_porta_r()
-{
- // 5 lines and they go through inverters
- return ~m_sound_select & 0x1f;
-}
-
-//-------------------------------------------------
-// pia2_ca2_w - PIA 2 CA2 writes
-//-------------------------------------------------
-
-WRITE_LINE_MEMBER(bally_squawk_n_talk_device::pia2_ca2_w)
-{
- machine().output().set_value("sound_led0", state);
-}
-
-//-------------------------------------------------
-// pia_irq_w - IRQ line state changes
-//-------------------------------------------------
-WRITE_LINE_MEMBER(bally_squawk_n_talk_device::pia_irq_w)
-{
- int combined_state = m_pia1->irq_a_state() | m_pia1->irq_b_state() | m_pia2->irq_a_state() | m_pia2->irq_b_state();
- m_cpu->set_input_line(M6802_IRQ_LINE, combined_state ? ASSERT_LINE : CLEAR_LINE);
-}
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-void bally_squawk_n_talk_ay_device::device_add_mconfig(machine_config &config)
-{
- bally_squawk_n_talk_device::device_add_mconfig(config);
-
- m_pia2->writepa_handler().set(FUNC(bally_squawk_n_talk_ay_device::pia2_porta_w));
- m_pia2->readpa_handler().set(FUNC(bally_squawk_n_talk_ay_device::pia2_porta_r));
- m_pia2->writepb_handler().set(FUNC(bally_squawk_n_talk_ay_device::pia2_portb_w));
- m_pia2->cb2_handler().set(FUNC(bally_squawk_n_talk_ay_device::pia2_cb2_w));
-
- for (optional_device<filter_rc_device> &filter : m_ay_filters)
- // TODO: Calculate exact filter values. An AC filter is good enough for now
- // and required as the chip likes to output a DC offset at idle.
- FILTER_RC(config, filter).set_ac().add_route(ALL_OUTPUTS, *this, 1.0);
- AY8910(config, m_ay, DERIVED_CLOCK(1, 4));
- m_ay->add_route(0, "ay_filter0", 0.33);
- m_ay->add_route(1, "ay_filter1", 0.33);
- m_ay->add_route(2, "ay_filter2", 0.33);
- m_ay->port_a_read_callback().set(FUNC(bally_squawk_n_talk_ay_device::ay_io_r));
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-void bally_squawk_n_talk_ay_device::device_start()
-{
- // Set volumes to a sane default.
- m_ay->set_volume(0, 0);
- m_ay->set_volume(1, 0);
- m_ay->set_volume(2, 0);
-
- save_item(NAME(m_bc1));
- save_item(NAME(m_bdir));
- save_item(NAME(m_ay_data));
-}
-
-//-------------------------------------------------
-// pia2_porta_r - PIA 2 port A reads
-//-------------------------------------------------
-
-uint8_t bally_squawk_n_talk_ay_device::pia2_porta_r()
-{
- if (m_bc1 && !m_bdir)
- {
- m_ay_data = m_ay->data_r();
- }
- // This should return the open bus, but this method is called even if the PIA
- // is in output mode. Self test expects to see the same value.
- return m_ay_data;
-}
-
-//-------------------------------------------------
-// pia2_porta_w - PIA 2 port A writes
-//-------------------------------------------------
-
-void bally_squawk_n_talk_ay_device::pia2_porta_w(uint8_t data)
-{
- if (m_bc1 && !m_bdir)
- {
- logerror("PIA2 port A bus contention!\n");
- }
- m_ay_data = data;
- update_ay_bus();
-}
-
-//-------------------------------------------------
-// pia2_portb_w - PIA 2 port B writes
-//-------------------------------------------------
-
-void bally_squawk_n_talk_ay_device::pia2_portb_w(uint8_t data)
-{
- m_bc1 = BIT(data, 0);
- m_bdir = BIT(data, 1);
- if (m_bc1 && !m_bdir)
- {
- m_ay_data = m_ay->data_r();
- }
- update_ay_bus();
-}
-
-//-------------------------------------------------
-// pia2_cb2_w - PIA 2 CB2 writes
-//-------------------------------------------------
-WRITE_LINE_MEMBER(bally_squawk_n_talk_ay_device::pia2_cb2_w)
-{
- // This pin is hooked up to the amp, and disables sounds when hi
- if (state)
- {
- m_ay->set_volume(0, 0);
- m_ay->set_volume(1, 0);
- m_ay->set_volume(2, 0);
- }
- else
- {
- m_ay->set_volume(0, 0xff);
- m_ay->set_volume(1, 0xff);
- m_ay->set_volume(2, 0xff);
- }
-}
-
-//-------------------------------------------------
-// ay_io_r - AY8910 read
-//-------------------------------------------------
-
-uint8_t bally_squawk_n_talk_ay_device::ay_io_r()
-{
- // 5 lines and they go through inverters
- return ~m_sound_select & 0x1f;
-}
-
-void bally_squawk_n_talk_ay_device::update_ay_bus()
-{
- if (m_bc1 && m_bdir)
- {
- m_ay->address_w(m_ay_data);
- }
- else if (!m_bc1 && m_bdir)
- {
- m_ay->data_w(m_ay_data);
- }
-}