// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Tormod Tjaberg, Mirko Buffoni,Lee Taylor, Valerio Verrando, Zsolt Vasvari,Aaron Giles,Jonathan Gevaryahu,hap,Robbbert
// thanks-to:Michael Strutts, Marco Cassili
/* 8080bw.c *******************************************/
#include "emu.h"
#include "includes/8080bw.h"
#include "sound/samples.h"
#include "sound/discrete.h"
#include "speaker.h"
#include <cmath>
//#define VERBOSE 1
#include "logmacro.h"
/*******************************************************/
/* */
/* Global state registration */
/* */
/*******************************************************/
MACHINE_START_MEMBER(_8080bw_state,extra_8080bw_sh)
{
save_item(NAME(m_port_1_last_extra));
save_item(NAME(m_port_2_last_extra));
save_item(NAME(m_port_3_last_extra));
}
/*************************************
*
* Device type globals
*
*************************************/
DEFINE_DEVICE_TYPE(CANE_AUDIO, cane_audio_device, "cane_audio", "Model Racing Cane Audio")
/*************************************
*
* Space Invaders
*
* Author : Tormod Tjaberg
* Created : 1997-04-09
* Description : Sound routines for the 'invaders' games
*
* Note:
* The samples were taken from Michael Strutt's (mstrutt@pixie.co.za)
* excellent space invader emulator and converted to signed samples so
* they would work under SEAL. The port info was also gleaned from
* his emulator. These sounds should also work on all the invader games.
*
*************************************/
static const char *const invaders_sample_names[] =
{
"*invaders",
"1", /* shot/missle */
"2", /* base hit/explosion */
"3", /* invader hit */
"4", /* fleet move 1 */
"5", /* fleet move 2 */
"6", /* fleet move 3 */
"7", /* fleet move 4 */
"8", /* UFO/saucer hit */
"9", /* bonus base */
nullptr
};
/* left in for all games that hack into invaders samples for audio */
void _8080bw_state::invaders_samples_audio(machine_config &config)
{
SPEAKER(config, "mono").front_center();
SN76477(config, m_sn);
m_sn->set_noise_params(0, 0, 0);
m_sn->set_decay_res(0);
m_sn->set_attack_params(0, RES_K(100));
m_sn->set_amp_res(RES_K(56));
m_sn->set_feedback_res(RES_K(10));
m_sn->set_vco_params(0, CAP_U(0.1), RES_K(8.2));
m_sn->set_pitch_voltage(5.0);
m_sn->set_slf_params(CAP_U(1.0), RES_K(120));
m_sn->set_oneshot_params(0, 0);
m_sn->set_vco_mode(1);
m_sn->set_mixer_params(0, 0, 0);
m_sn->set_envelope_params(1, 0);
m_sn->set_enable(1);
m_sn->add_route(ALL_OUTPUTS, "mono", 0.5);
SAMPLES(config, m_samples);
m_samples->set_channels(6);
m_samples->set_samples_names(invaders_sample_names);
m_samples->add_route(ALL_OUTPUTS, "mono", 1.0);
}
/*******************************************************/
/* */
/* Midway "Space Invaders Part II" */
/* */
/*******************************************************/
WRITE8_MEMBER(_8080bw_state::invadpt2_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
m_sn->enable_w(!(data & 0x01)); /* SAUCER SOUND */
if (rising_bits & 0x02) m_samples->start(0, 0); /* MISSLE SOUND */
if (rising_bits & 0x04) m_samples->start(1, 1); /* EXPLOSION */
if (rising_bits & 0x08) m_samples->start(2, 2); /* INVADER HIT */
if (rising_bits & 0x10) m_samples->start(5, 8); /* BONUS MISSILE BASE */
m_screen_red = data & 0x04;
machine().sound().system_enable(data & 0x20);
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::invadpt2_sh_port_2_w)
{
/* FLEET (movement)
DO = 20K + 20K
D1 = 68K
D2 = 82K
D3 = 100K */
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(4, 3); /* FLEET */
if (rising_bits & 0x02) m_samples->start(4, 4); /* FLEET */
if (rising_bits & 0x04) m_samples->start(4, 5); /* FLEET */
if (rising_bits & 0x08) m_samples->start(4, 6); /* FLEET */
if (rising_bits & 0x10) m_samples->start(3, 7); /* SAUCER HIT */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_color_map = BIT(data, 5);
m_port_2_last_extra = data;
}
/*******************************************************/
/* */
/* Space Ranger */
/* */
/*******************************************************/
WRITE8_MEMBER(_8080bw_state::spacerng_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(4, 3); /* FLEET */
if (rising_bits & 0x02) m_samples->start(4, 4); /* FLEET */
if (rising_bits & 0x04) m_samples->start(4, 5); /* FLEET */
if (rising_bits & 0x08) m_samples->start(4, 6); /* FLEET */
if (rising_bits & 0x10) m_samples->start(3, 7); /* SAUCER HIT */
m_flip_screen = BIT(~data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
/*******************************************************/
/* */
/* Sanritsu "Space War" */
/* */
/*******************************************************/
WRITE8_MEMBER(_8080bw_state::spcewars_sh_port_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
m_sn->enable_w(!(data & 0x01)); /* Saucer Sound */
if (rising_bits & 0x02) m_samples->start(0, 0); /* Shot Sound */
if (rising_bits & 0x04) m_samples->start(1, 1); /* Base Hit */
if (rising_bits & 0x08) m_samples->start(2, 2); /* Invader Hit */
m_speaker->level_w(BIT(data, 4)); /* Various bitstream tunes */
m_port_1_last_extra = data;
}
/*******************************************************/
/* */
/* lrescue, grescue, lrescuem, desterth */
/* */
/*******************************************************/
const char *const lrescue_sample_names[] =
{
"*lrescue",
"alienexplosion",
"rescueshipexplosion",
"beamgun",
"thrust",
"bonus2",
"bonus3",
"shootingstar",
"stepl",
"steph",
nullptr
};
WRITE8_MEMBER(_8080bw_state::lrescue_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(0, 3); /* Thrust */
if (rising_bits & 0x02) m_samples->start(1, 2); /* Shot Sound */
if (rising_bits & 0x04) m_samples->start(0, 1); /* Death */
if (rising_bits & 0x08) m_samples->start(1, 0); /* Alien Hit */
if (rising_bits & 0x10) m_samples->start(2, 5); /* Bonus Ship (not confirmed) */
machine().sound().system_enable(data & 0x20);
m_screen_red = data & 0x04;
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::lrescue_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(1, 8); /* Footstep high tone */
if (rising_bits & 0x02) m_samples->start(1, 7); /* Footstep low tone */
if (rising_bits & 0x04) m_samples->start(1, 4); /* Bonus when counting men saved */
m_speaker->level_w(BIT(data, 3)); /* Bitstream tunes - endlevel and bonus1 */
if (rising_bits & 0x10) m_samples->start(3, 6); /* Shooting Star and Rescue Ship sounds */
if ((~data & 0x10) && (m_port_2_last_extra & 0x10)) m_samples->stop(3); /* This makes the rescue ship sound beep on and off */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
/*******************************************************/
/* */
/* Cosmo */
/* */
/*******************************************************/
WRITE8_MEMBER(_8080bw_state::cosmo_sh_port_2_w)
{
/* inverted flip screen bit */
invadpt2_sh_port_2_w(space, offset, data ^ 0x20);
}
/*******************************************************/
/* */
/* Taito "Balloon Bomber" */
/* The sounds are not the correct ones */
/* */
/*******************************************************/
/*************************************
*
* Discrete Sound
* (copied from indianbt)
*
*************************************/
static const discrete_dac_r1_ladder ballbomb_music_dac =
{3, {0, RES_K(47), RES_K(12)}, 0, 0, 0, CAP_U(0.1)};
#define BALLBOMB_MUSIC_CLK (3993.6*2*2*2)
/* Nodes - Inputs */
#define BALLBOMB_MUSIC_DATA NODE_01
/* Nodes - Sounds */
#define BALLBOMB_MUSIC NODE_11
DISCRETE_SOUND_START(ballbomb_discrete)
DISCRETE_INPUT_DATA (BALLBOMB_MUSIC_DATA)
/******************************************************************************
*
* Music Generator
*
******************************************************************************/
DISCRETE_NOTE(NODE_20, 1, BALLBOMB_MUSIC_CLK, BALLBOMB_MUSIC_DATA, 255, 5, DISC_CLK_IS_FREQ)
// Convert count to 7492 output
DISCRETE_TRANSFORM2(NODE_21, NODE_20, 2, "01>0+")
DISCRETE_DAC_R1(NODE_22, NODE_21, DEFAULT_TTL_V_LOGIC_1, &ballbomb_music_dac)
/******************************************************************************
*
* Final Mixing and Output
*
******************************************************************************/
DISCRETE_CRFILTER(NODE_90, NODE_22, RES_K(10), CAP_U(0.1))
DISCRETE_OUTPUT(NODE_90, 21000)
DISCRETE_SOUND_END
WRITE8_MEMBER( _8080bw_state::ballbomb_01_w )
{
m_discrete->write(BALLBOMB_MUSIC_DATA, data|0x80);
}
WRITE8_MEMBER(_8080bw_state::ballbomb_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(1, 2); /* Hit a balloon */
if (rising_bits & 0x02) m_samples->start(2, 0); /* Shot Sound */
if (rising_bits & 0x04) m_samples->start(2, 1); /* Base Hit */
if (rising_bits & 0x08) m_samples->start(1, 7); /* Hit a Bomb */
if (rising_bits & 0x10) m_samples->start(3, 8); /* Bonus Base at 1500 points */
machine().sound().system_enable(data & 0x20);
m_screen_red = data & 0x04;
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::ballbomb_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (data & 0x01) m_samples->start(0, 7); /* Indicates plane will drop bombs */
if (data & 0x04) m_samples->start(0, 4); /* Plane is dropping new balloons at start of level */
if (rising_bits & 0x10) m_samples->start(2, 2); /* Balloon hit and bomb drops */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
/*******************************************************/
/* */
/* Taito "Indian Battle" */
/* Sept 2005, D.R. */
/*******************************************************/
static const discrete_dac_r1_ladder indianbt_music_dac =
{3, {0, RES_K(47), RES_K(12)}, 0, 0, 0, CAP_U(0.1)};
#define INDIANBT_MUSIC_CLK (7680.0*2*2*2)
/* Nodes - Inputs */
#define INDIANBT_MUSIC_DATA NODE_01
/* Nodes - Sounds */
#define INDIANBT_MUSIC NODE_11
DISCRETE_SOUND_START(indianbt_discrete)
DISCRETE_INPUT_DATA (INDIANBT_MUSIC_DATA)
/******************************************************************************
*
* Music Generator
*
******************************************************************************/
DISCRETE_NOTE(NODE_20, 1, INDIANBT_MUSIC_CLK, INDIANBT_MUSIC_DATA, 255, 5, DISC_CLK_IS_FREQ)
// Convert count to 7492 output
DISCRETE_TRANSFORM2(NODE_21, NODE_20, 2, "01>0+")
DISCRETE_DAC_R1(NODE_22, NODE_21, DEFAULT_TTL_V_LOGIC_1, &indianbt_music_dac)
/******************************************************************************
*
* Final Mixing and Output
*
******************************************************************************/
DISCRETE_CRFILTER(NODE_90, NODE_22, RES_K(10), CAP_U(0.1))
DISCRETE_OUTPUT(NODE_90, 21000)
DISCRETE_SOUND_END
WRITE8_MEMBER(_8080bw_state::indianbt_sh_port_1_w)
{
/* bit 4 occurs every 5.25 seconds during gameplay */
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(1, 7); /* Death */
if (rising_bits & 0x02) m_samples->start(0, 1); /* Shot Sound */
if (rising_bits & 0x04) m_samples->start(2, 3); /* Move */
if (rising_bits & 0x08) m_samples->start(3, 2); /* Hit */
machine().sound().system_enable(data & 0x20);
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::indianbt_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(4, 0); /* Bird dropped an egg, Lasso used */
if (rising_bits & 0x02) m_samples->start(4, 2); /* Egg hatches, egg shot */
if (rising_bits & 0x08) m_samples->start(5, 0); /* Grabber, Lasso caught something */
if (rising_bits & 0x10) m_samples->start(3, 7); /* Lasso sound */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::indianbt_sh_port_3_w)
{
m_discrete->write(INDIANBT_MUSIC_DATA, data);
}
WRITE8_MEMBER(_8080bw_state::indianbtbr_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(4, 7); /* Lasso */
if (rising_bits & 0x04) m_samples->start(0, 1); /* Shot Sound */
if (rising_bits & 0x08) m_samples->start(3, 2); /* Hit */
machine().sound().system_enable(data & 0x20);
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::indianbtbr_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x08) m_samples->start(2, 3); /* Move */
if (rising_bits & 0x10) m_samples->start(3, 7); /* Death */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
/*******************************************************************/
/* */
/* Taito "Polaris" */
/* */
/* D.R. */
/* The R/C values in the schematic may have no bearing in reality. */
/* I have noted some differences from a real board. */
/* */
/*******************************************************************/
static const discrete_lfsr_desc polaris_lfsr={
DISC_CLK_IS_FREQ,
17, /* Bit Length */
0, /* Reset Value */
4, /* Use Bit 4 as XOR input 0 */
16, /* Use Bit 16 as XOR input 1 */
DISC_LFSR_XOR, /* Feedback stage1 is XOR */
DISC_LFSR_OR, /* Feedback stage2 is just stage 1 output OR with external feed */
DISC_LFSR_REPLACE, /* Feedback stage3 replaces the shifted register contents */
0x000001, /* Everything is shifted into the first bit only */
0, /* Output is not inverted */
12 /* Output bit */
};
static const discrete_dac_r1_ladder polaris_music_dac =
{2, {RES_K(47), RES_K(12), 0,0,0,0,0,0}, 0, 0, 0, CAP_P(180)};
static const discrete_op_amp_filt_info polaris_music_op_amp_filt_info =
{RES_K(580), 0, 0, RES_M(2.2), RES_M(1), CAP_U(.01), 0, 0, 0, 12, 0};
static const discrete_op_amp_filt_info polaris_nol_op_amp_filt_info =
{560, RES_K(6.8), RES_K(1002), RES_M(2.2), RES_M(1), CAP_U(.22), CAP_U(.22), CAP_U(1), 0, 12, 0};
static const discrete_op_amp_filt_info polaris_noh_op_amp_filt_info =
{560, RES_K(6.8), RES_K(1002), RES_M(2.2), RES_M(1), CAP_U(.001), CAP_U(.001), CAP_U(.01), 0, 12, 0};
static const discrete_op_amp_osc_info polaris_sonar_vco_info =
{DISC_OP_AMP_OSCILLATOR_VCO_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP, RES_M(1), RES_K(680), RES_K(680), RES_M(1), RES_M(1), RES_K(120), RES_M(1), 0, CAP_P(180), 12};
static const discrete_op_amp_tvca_info polaris_sonar_tvca_info =
{ RES_M(2.7), RES_K(680), 0, RES_K(680), RES_K(1), RES_K(120), RES_K(560), 0, 0, 0, 0, CAP_U(1), 0, 0, 0, 12, 12, 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_TRG1, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0_INV, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE};
static const discrete_op_amp_osc_info polaris_boat_mod_info =
{DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP, RES_M(1), RES_K(10), RES_K(100), RES_K(120), RES_M(1), 0, 0, 0, CAP_U(.22), 12};
static const discrete_op_amp_osc_info polaris_boat_vco_info =
{DISC_OP_AMP_OSCILLATOR_VCO_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP, RES_M(1), RES_K(680), RES_K(680), RES_M(1), RES_M(1), 0, 0, 0, CAP_P(180), 12};
static const discrete_op_amp_tvca_info polaris_shot_tvca_info =
{ RES_M(2.7), RES_K(680), RES_K(680), RES_K(680), RES_K(1), 0, RES_K(680), 0, 0, 0, 0, CAP_U(1), 0, 0, 0, 12, 12, 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0_INV, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE};
static const discrete_op_amp_tvca_info polaris_shiphit_tvca_info =
{ RES_M(2.7), RES_K(680), RES_K(680), RES_K(680), RES_K(1), 0, RES_K(680), 0, 0, 0, 0, CAP_U(1), 0, 0, 0, 12, 12, 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0_INV, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE};
static const discrete_op_amp_tvca_info polaris_exp_tvca_info =
{ RES_M(2.7), RES_K(680), 0, RES_K(680), RES_K(1), 0, RES_K(680), 0, 0, 0, 0, CAP_U(.33), 0, 0, 0, 12, 12, 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE};
// The schematic shows a .22uF cap but Guru's board has a 1uF
static const discrete_op_amp_tvca_info polaris_hit_tvca_info =
{ RES_M(2.7), RES_K(1360), RES_K(1360), RES_K(680), RES_K(1), 0, RES_K(680), 0, 0, 0, 0, CAP_U(1), 0, 0, 0, 12, 12, 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_TRG1, DISC_OP_AMP_TRIGGER_FUNCTION_TRG01_NAND, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE, DISC_OP_AMP_TRIGGER_FUNCTION_NONE};
// The schematic shows a 1uF cap but Guru's board has a 2.2uF
static const discrete_integrate_info polaris_plane_integrate_info =
{DISC_INTEGRATE_OP_AMP_2 | DISC_OP_AMP_IS_NORTON, RES_K(1001), RES_K(1001), RES_K(101), CAP_U(2.2), 12, 12, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, DISC_OP_AMP_TRIGGER_FUNCTION_TRG0_INV, DISC_OP_AMP_TRIGGER_FUNCTION_TRG1_INV};
// A bit of a cheat. The schematic show the cap as 47p, but that makes the frequency too high.
// Guru's board has a .01 cap, which would make the freq sub-sonic using the other schematic values.
// I will use 2000p until the proper values can be confirmed.
static const discrete_op_amp_osc_info polaris_plane_vco_info =
{DISC_OP_AMP_OSCILLATOR_VCO_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP, RES_M(1), RES_K(680), RES_K(680), RES_M(1), RES_M(1), RES_K(100), RES_K(10), RES_K(100), CAP_U(0.002), 12};
static const discrete_mixer_desc polaris_mixer_vr1_desc =
{DISC_MIXER_IS_RESISTOR,
{RES_K(66), RES_K(43), RES_K(20), RES_K(43)},
{0}, // no variable resistors
{CAP_U(1), CAP_U(1), CAP_U(1), CAP_U(1)},
0, RES_K(50), 0, 0, 0, 1};
static const discrete_mixer_desc polaris_mixer_vr2_desc =
{DISC_MIXER_IS_RESISTOR,
{RES_K(66), RES_K(110)},
{0}, // no variable resistors
{CAP_U(1), CAP_U(1)},
0, RES_K(50), 0, 0, 0, 1};
// Note: the final gain leaves the explosions (SX3) at a level
// where they clip. From the schematics, this is how they wanted it.
// This makes them have more bass and distortion.
static const discrete_mixer_desc polaris_mixer_vr4_desc =
{DISC_MIXER_IS_RESISTOR,
{RES_K(22), RES_K(20), RES_K(22), RES_K(22)},
{0}, // no variable resistors
{0, CAP_U(1), 0, 0},
0, RES_K(50), 0, CAP_U(1), 0, 40000};
/* Nodes - Inputs */
#define POLARIS_MUSIC_DATA NODE_01
#define POLARIS_SX0_EN NODE_02
#define POLARIS_SX1_EN NODE_03
#define POLARIS_SX2_EN NODE_04
#define POLARIS_SX3_EN NODE_05
#define POLARIS_SX5_EN NODE_06
#define POLARIS_SX6_EN NODE_07
#define POLARIS_SX7_EN NODE_08
#define POLARIS_SX9_EN NODE_09
#define POLARIS_SX10_EN NODE_10
/* Nodes - Sounds */
#define POLARIS_MUSIC NODE_11
#define POLARIS_NOISE_LO NODE_12
#define POLARIS_NOISE_LO_FILT NODE_13
#define POLARIS_NOISE_HI_FILT NODE_14
#define POLARIS_SHOTSND NODE_15
#define POLARIS_SHIP_HITSND NODE_16
#define POLARIS_SHIPSND NODE_17
#define POLARIS_EXPLOSIONSND NODE_18
#define POLARIS_PLANESND NODE_19
#define POLARIS_HITSND NODE_20
#define POLARIS_SONARSND NODE_21
/* Nodes - Adjust */
#define POLARIS_ADJ_VR1 NODE_23
#define POLARIS_ADJ_VR2 NODE_24
#define POLARIS_ADJ_VR3 NODE_25
DISCRETE_SOUND_START(polaris_discrete)
/************************************************/
/* Polaris sound system: 8 Sound Sources */
/* */
/* Relative volumes are adjustable */
/* */
/************************************************/
/************************************************/
/* Input register mapping for polaris */
/************************************************/
DISCRETE_INPUT_DATA (POLARIS_MUSIC_DATA)
DISCRETE_INPUT_LOGIC(POLARIS_SX0_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX1_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX2_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX3_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX5_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX6_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX7_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX9_EN)
DISCRETE_INPUT_LOGIC(POLARIS_SX10_EN)
/* We will cheat and just use the controls to scale the amplitude. */
/* It is the same as taking the (0 to 50k)/50k */
DISCRETE_ADJUSTMENT(POLARIS_ADJ_VR1, 0, 1, DISC_LINADJ, "VR1")
DISCRETE_ADJUSTMENT(POLARIS_ADJ_VR2, 0, 1, DISC_LINADJ, "VR2")
/* Extra cheating for VR3. We will include the resistor scaling. */
DISCRETE_ADJUSTMENT(POLARIS_ADJ_VR3, 0, 0.5376, DISC_LINADJ, "VR3")
/******************************************************************************
*
* Music Generator
*
* This is a simulation of the following circuit:
* 555 Timer (Ra = 1k, Rb = 1k, C =.01uF) running at 48kHz. Connected to a
* 1 bit counter (/2) for 24kHz. But I will use the frequency measured by Guru.
* This is then sent to a preloadable 8 bit counter (4G & 4H), which loads the
* value from Port 2 when overflowing from 0xFF to 0x00. Therefore it divides
* by 2 (Port 2 = FE) to 256 (Port 2 = 00).
* This goes to a 2 bit counter (5H) which has a 47k resistor on Q0 and a 12k on Q1.
* This creates a sawtooth ramp of: 0%, 12/59%, 47/59%, 100% then back to 0%
*
* Note that there is no music disable line. When there is no music, the game
* sets the oscillator to 0Hz. (Port 2 = FF)
*
******************************************************************************/
DISCRETE_NOTE(NODE_30, 1, 23396, POLARIS_MUSIC_DATA, 255, 3, DISC_CLK_IS_FREQ)
DISCRETE_DAC_R1(NODE_31, NODE_30, DEFAULT_TTL_V_LOGIC_1, &polaris_music_dac)
DISCRETE_OP_AMP_FILTER(NODE_32, 1, NODE_31, 0, DISC_OP_AMP_FILTER_IS_HIGH_PASS_0 | DISC_OP_AMP_IS_NORTON, &polaris_music_op_amp_filt_info)
DISCRETE_MULTIPLY(POLARIS_MUSIC, NODE_32, POLARIS_ADJ_VR3)
/******************************************************************************
*
* Background Sonar Sound
*
* This is a background sonar that plays at all times during the game.
* It is a VCO triangle wave genarator, that uses the Low frequency filtered
* noise source to modulate the frequency.
* This is then amplitude modulated, by some fancy clocking scheme.
* It is disabled during SX3. (No sonar when you die.)
*
* 5L pin 6 divides 60Hz by 16. This clocks the sonar.
* 5K pin 9 is inverted by 5F, and then the 0.1uF;1M;270k;1S1588 diode circuit
* makes a one shot pulse of approx. 15ms to keep the noise working.
*
******************************************************************************/
DISCRETE_SQUAREWFIX(NODE_40, 1, 60.0/16, 1, 50, 1.0/2, 0) // IC 5L, pin 6
DISCRETE_COUNTER(NODE_41, 1, 0, NODE_40, 0, 31, 1, 0, DISC_CLK_ON_F_EDGE) // IC 5L & 5F
DISCRETE_TRANSFORM2(NODE_42, NODE_41, 4, "01&") // IC 5L, pin 9
DISCRETE_TRANSFORM2(NODE_43, NODE_41, 16, "01&!") // IC 5F, pin 8
DISCRETE_ONESHOT(NODE_44, NODE_43, 1, 0.0015, DISC_ONESHOT_REDGE | DISC_ONESHOT_NORETRIG | DISC_OUT_ACTIVE_HIGH)
DISCRETE_LOGIC_OR(NODE_45, NODE_42, POLARIS_SX3_EN)
DISCRETE_LOGIC_DFLIPFLOP(NODE_46, 1, 1, NODE_40, NODE_45)
DISCRETE_OP_AMP_VCO1(NODE_47, 1, POLARIS_NOISE_LO_FILT, &polaris_sonar_vco_info)
DISCRETE_OP_AMP_TRIG_VCA(POLARIS_SONARSND, NODE_45, NODE_46, 0, NODE_47, 0, &polaris_sonar_tvca_info)
/******************************************************************************
*
* Noise sources
*
* The frequencies for the noise sources were Measured by Guru.
*
* The output of the shift register is buffered by an op-amp which limits
* the output to 0V and (12V - OP_AMP_NORTON_VBE)
*
******************************************************************************/
DISCRETE_LFSR_NOISE(POLARIS_NOISE_LO, 1, 1, 800.8, (12.0 - OP_AMP_NORTON_VBE), NODE_44, (12.0 - OP_AMP_NORTON_VBE)/2, &polaris_lfsr) // Unfiltered Lo noise. 7K pin 4.
// Filtered Lo noise. 7K pin 5.
DISCRETE_OP_AMP_FILTER(POLARIS_NOISE_LO_FILT, 1, POLARIS_NOISE_LO, 0, DISC_OP_AMP_FILTER_IS_BAND_PASS_0 | DISC_OP_AMP_IS_NORTON, &polaris_nol_op_amp_filt_info)
DISCRETE_LFSR_NOISE(NODE_50, 1, 1, 23396, (12.0 - OP_AMP_NORTON_VBE), NODE_44, (12.0 - OP_AMP_NORTON_VBE)/2, &polaris_lfsr) // 7K pin 10
// Filtered Hi noise. 6B pin 10. - This does not really do much. Sample rates of 98k+ are needed for this high of filtering.
DISCRETE_OP_AMP_FILTER(POLARIS_NOISE_HI_FILT, 1, NODE_50, 0, DISC_OP_AMP_FILTER_IS_BAND_PASS_0 | DISC_OP_AMP_IS_NORTON, &polaris_noh_op_amp_filt_info)
/******************************************************************************
*
* Shot - SX0 (When player shoots)
*
* When Enabled it makes a low frequency RC filtered noise. As soon as it
* disables, it switches to a high frequency RC filtered noise with the volume
* decaying based on the RC values of 680k and 1uF.
*
******************************************************************************/
DISCRETE_OP_AMP_TRIG_VCA(POLARIS_SHOTSND, POLARIS_SX0_EN, 0, 0, POLARIS_NOISE_HI_FILT, POLARIS_NOISE_LO_FILT, &polaris_shot_tvca_info)
/******************************************************************************
*
* Ship Hit - SX1 (When sub is hit)
*
* When Enabled it makes a low frequency RC filtered noise. As soon as it
* disables, it's volume starts decaying based on the RC values of 680k and
* 1uF. Also as it decays, a decaying high frequency RC filtered noise is
* mixed in.
*
******************************************************************************/
DISCRETE_OP_AMP_TRIG_VCA(POLARIS_SHIP_HITSND, POLARIS_SX1_EN, 0, 0, POLARIS_NOISE_HI_FILT, POLARIS_NOISE_LO_FILT, &polaris_shiphit_tvca_info)
/******************************************************************************
*
* Ship - SX2 (When boat moves across screen)
*
* This uses a 5.75Hz |\|\ sawtooth to modulate the frequency of a
* voltage controlled triangle wave oscillator. *
*
******************************************************************************/
DISCRETE_OP_AMP_OSCILLATOR(NODE_60, 1, &polaris_boat_mod_info)
DISCRETE_OP_AMP_VCO1(POLARIS_SHIPSND, POLARIS_SX2_EN, NODE_60, &polaris_boat_vco_info)
/******************************************************************************
*
* Explosion - SX3 (When player, boat or boss plane is hit)
*
* When Enabled it makes a low frequency noise. As soon as it disables, it's
* volume starts decaying based on the RC values of 680k and 0.33uF. The
* final output is RC filtered.
*
* Note that when this is triggered, the sonar sound clock is disabled.
*
******************************************************************************/
DISCRETE_OP_AMP_TRIG_VCA(NODE_70, POLARIS_SX3_EN, 0, 0, POLARIS_NOISE_LO, 0, &polaris_exp_tvca_info)
DISCRETE_RCFILTER(NODE_71, NODE_70, 560.0, CAP_U(.22))
DISCRETE_RCFILTER(POLARIS_EXPLOSIONSND, NODE_71, RES_K(6.8), CAP_U(.22))
/******************************************************************************
*
* Plane Down - SX6
* Plane Up - SX7
*
* The oscillator is enabled when SX7 goes high. When SX6 is enabled the
* frequency lowers. When SX6 is disabled the frequency ramps back up.
* Also some NOISE_HI_FILT is mixed in so the frequency varies some.
*
******************************************************************************/
DISCRETE_INTEGRATE(NODE_80, POLARIS_SX6_EN, POLARIS_SX7_EN, &polaris_plane_integrate_info)
DISCRETE_OP_AMP_VCO2(POLARIS_PLANESND, POLARIS_SX7_EN, NODE_80, POLARIS_NOISE_HI_FILT, &polaris_plane_vco_info)
/******************************************************************************
*
* HIT - SX9 & SX10
*
* Following the schematic, 3 different sounds are produced.
* SX10 SX9 Effect
* 0 0 no sound
* 0 1 NOISE_HI_FILT while enabled
* 1 0 NOISE_LO_FILT while enabled (When a regular plane is hit)
* 1 1 NOISE_HI_FILT & NOISE_LO_FILT decaying immediately @ 680k, 0.22uF
*
******************************************************************************/
DISCRETE_OP_AMP_TRIG_VCA(POLARIS_HITSND, POLARIS_SX10_EN, POLARIS_SX9_EN, 0, POLARIS_NOISE_LO_FILT, POLARIS_NOISE_HI_FILT, &polaris_hit_tvca_info)
/******************************************************************************
*
* Final Mixing and Output
*
******************************************************************************/
DISCRETE_MIXER4(NODE_90, 1, POLARIS_SHOTSND, POLARIS_SONARSND, POLARIS_HITSND, POLARIS_PLANESND, &polaris_mixer_vr1_desc)
DISCRETE_MULTIPLY(NODE_91, NODE_90, POLARIS_ADJ_VR1)
DISCRETE_MIXER2(NODE_92, 1, POLARIS_SHIPSND, POLARIS_SHIP_HITSND, &polaris_mixer_vr2_desc)
DISCRETE_MULTIPLY(NODE_93, NODE_92, POLARIS_ADJ_VR2)
DISCRETE_MIXER4(NODE_94, POLARIS_SX5_EN, NODE_91, POLARIS_EXPLOSIONSND, NODE_93, POLARIS_MUSIC, &polaris_mixer_vr4_desc)
DISCRETE_OUTPUT(NODE_94, 1)
DISCRETE_SOUND_END
WRITE8_MEMBER(_8080bw_state::polaris_sh_port_1_w)
{
m_discrete->write(POLARIS_MUSIC_DATA, data);
}
WRITE8_MEMBER(_8080bw_state::polaris_sh_port_2_w)
{
/* 0x01 - SX0 - Shot */
m_discrete->write(POLARIS_SX0_EN, data & 0x01);
/* 0x02 - SX1 - Ship Hit (Sub) */
m_discrete->write(POLARIS_SX1_EN, data & 0x02);
/* 0x04 - SX2 - Ship */
m_discrete->write(POLARIS_SX2_EN, data & 0x04);
/* 0x08 - SX3 - Explosion */
m_discrete->write(POLARIS_SX3_EN, data & 0x08);
/* 0x10 - SX4 */
/* 0x20 - SX5 - Sound Enable */
m_discrete->write(POLARIS_SX5_EN, data & 0x20);
}
WRITE8_MEMBER(_8080bw_state::polaris_sh_port_3_w)
{
machine().bookkeeping().coin_lockout_global_w(data & 0x04); /* SX8 */
m_flip_screen = BIT(data, 5) & BIT(ioport("IN2")->read(), 2); /* SX11 */
/* 0x01 - SX6 - Plane Down */
m_discrete->write(POLARIS_SX6_EN, data & 0x01);
/* 0x02 - SX7 - Plane Up */
m_discrete->write(POLARIS_SX7_EN, data & 0x02);
/* 0x08 - SX9 - Hit */
m_discrete->write(POLARIS_SX9_EN, data & 0x08);
/* 0x10 - SX10 - Hit */
m_discrete->write(POLARIS_SX10_EN, data & 0x10);
}
/*******************************************************/
/* */
/* Taito "Space Chaser" */
/* */
/* The SN76477 still needs to be routed to the */
/* discrete system for filtering. */
/*******************************************************/
/*
* The dot sound is a square wave clocked by either the
* the 8V or 4V signals
*
* The frequencies are (for the 8V signal):
*
* 19.968 MHz crystal / 2 (Qa of 74160 #10) -> 9.984MHz
* / 2 (7474 #14) -> 4.992MHz
* / 256+16 (74161 #5 and #8) -> 18352.94Hz
* / 8 (8V) -> 2294.12 Hz
* / 2 the final freq. is 2 toggles -> 1147.06Hz
*
* for 4V, it's double at 2294.12Hz
*/
#define SCHASER_HSYNC 18352.94
#define SCHASER_4V SCHASER_HSYNC /2 /4
#define SCHASER_8V SCHASER_HSYNC /2 /8
/* Nodes - Inputs */
#define SCHASER_DOT_EN NODE_01
#define SCHASER_DOT_SEL NODE_02
#define SCHASER_EXP_STREAM NODE_03
#define SCHASER_MUSIC_BIT NODE_04
#define SCHASER_SND_EN NODE_05
/* Nodes - Adjusters */
#define SCHASER_VR1 NODE_07
#define SCHASER_VR2 NODE_08
#define SCHASER_VR3 NODE_09
/* Nodes - Sounds */
#define SCHASER_DOT_SND NODE_10
#define SCHASER_EXP_SND NODE_11
#define SCHASER_MUSIC_SND NODE_12
DISCRETE_SOUND_START(schaser_discrete)
/************************************************/
/* Input register mapping for schaser */
/************************************************/
DISCRETE_INPUT_LOGIC (SCHASER_DOT_EN)
DISCRETE_INPUT_LOGIC (SCHASER_DOT_SEL)
// scale to 0-3.5V
DISCRETE_INPUTX_STREAM(SCHASER_EXP_STREAM, 0, 1.0/14100, 2.323)
DISCRETE_INPUTX_LOGIC (SCHASER_MUSIC_BIT, DEFAULT_TTL_V_LOGIC_1, 0, 0.0)
DISCRETE_INPUT_LOGIC (SCHASER_SND_EN)
/************************************************/
/* Volume adjusters. */
/* We will set them to adjust the realitive */
/* gains. */
/************************************************/
DISCRETE_ADJUSTMENT(SCHASER_VR1, 0, RES_K(50)/(RES_K(50) + RES_K(470)), DISC_LINADJ, "VR1")
DISCRETE_ADJUSTMENT(SCHASER_VR2, 0, RES_K(50)/(RES_K(50) + 560 + RES_K(6.8) + RES_K(2)), DISC_LINADJ, "VR2")
DISCRETE_ADJUSTMENT(SCHASER_VR3, 0, RES_K(50)/(RES_K(50) + 560 + RES_K(6.8) + RES_K(10)), DISC_LINADJ, "VR3")
/************************************************/
/* Dot selection just selects between 4V and 8V */
/************************************************/
DISCRETE_SQUAREWFIX(NODE_20, 1, SCHASER_4V, DEFAULT_TTL_V_LOGIC_1, 50, 0, 0)
DISCRETE_SQUAREWFIX(NODE_21, 1, SCHASER_8V, DEFAULT_TTL_V_LOGIC_1, 50, 0, 0)
DISCRETE_SWITCH(NODE_22, SCHASER_DOT_EN, SCHASER_DOT_SEL, NODE_20, NODE_21)
DISCRETE_RCFILTER(NODE_23, NODE_22, 560, CAP_U(.1))
DISCRETE_RCFILTER(NODE_24, NODE_23, RES_K(6.8) + 560, CAP_U(.1))
DISCRETE_MULTIPLY(SCHASER_DOT_SND, NODE_24, SCHASER_VR3)
/************************************************/
/* Explosion/Effect filtering */
/************************************************/
DISCRETE_RCFILTER(NODE_30, SCHASER_EXP_STREAM, 560, CAP_U(.1))
DISCRETE_RCFILTER(NODE_31, NODE_30, RES_K(6.8) + 560, CAP_U(.1))
DISCRETE_CRFILTER(NODE_32, NODE_31, RES_K(6.8) + 560 + RES_K(2) + RES_K(50), CAP_U(1))
DISCRETE_MULTIPLY(SCHASER_EXP_SND, NODE_32, SCHASER_VR2)
/************************************************/
/* Music is just a 1 bit DAC */
/************************************************/
DISCRETE_CRFILTER(NODE_40, SCHASER_MUSIC_BIT, RES_K(470) + RES_K(50), CAP_U(.01))
DISCRETE_MULTIPLY(SCHASER_MUSIC_SND, NODE_40, SCHASER_VR1)
/************************************************/
/* Final mix with gain */
/************************************************/
DISCRETE_ADDER3(NODE_90, SCHASER_SND_EN, SCHASER_DOT_SND, SCHASER_EXP_SND, SCHASER_MUSIC_SND)
DISCRETE_OUTPUT(NODE_90, 33080)
DISCRETE_SOUND_END
static const double schaser_effect_rc[8] =
{
0,
(RES_K(15) + RES_K(20)) * CAP_U(1),
(RES_K(39) + RES_K(20)) * CAP_U(1),
(1.0/ (1.0/RES_K(15) + 1.0/RES_K(39)) + RES_K(20)) * CAP_U(1),
(RES_K(82) + RES_K(20)) * CAP_U(1),
(1.0/ (1.0/RES_K(15) + 1.0/RES_K(82)) + RES_K(20)) * CAP_U(1),
(1.0/ (1.0/RES_K(15) + 1.0/RES_K(82)) + RES_K(20)) * CAP_U(1),
(1.0/ (1.0/RES_K(15) + 1.0/RES_K(39) + 1.0/RES_K(82)) + RES_K(20)) * CAP_U(1)
};
WRITE8_MEMBER(_8080bw_state::schaser_sh_port_1_w)
{
int effect;
/* bit 0 - Dot Sound Enable (SX0)
bit 1 - Dot Sound Pitch (SX1)
bit 2 - Effect Sound A (SX2)
bit 3 - Effect Sound B (SX3)
bit 4 - Effect Sound C (SX4)
bit 5 - Explosion (SX5)
Note that the schematic has SX2 and SX4 the wrong way around.
See MT 2662 for video proof. */
m_discrete->write(SCHASER_DOT_EN, data & 0x01);
m_discrete->write(SCHASER_DOT_SEL, data & 0x02);
/* The effect is a variable rate 555 timer. A diode/resistor array is used to
* select the frequency. Because of the diode voltage drop, we can not use the
* standard 555 time formulas. Also, when effect=0, the charge resistor
* is disconnected. This causes the charge on the cap to slowly bleed off, but
* but the bleed time is so long, that we can just cheat and put the time on hold
* when effect = 0. */
effect = (data >> 2) & 0x07;
if (m_schaser_last_effect != effect)
{
if (effect)
{
if (m_schaser_effect_555_time_remain != attotime::zero)
{
/* timer re-enabled, use up remaining 555 high time */
m_schaser_effect_555_timer->adjust(m_schaser_effect_555_time_remain, effect);
}
else if (!m_schaser_effect_555_is_low)
{
/* set 555 high time */
attotime new_time = attotime(0, ATTOSECONDS_PER_SECOND * .8873 * schaser_effect_rc[effect]);
m_schaser_effect_555_timer->adjust(new_time, effect);
}
}
else
{
/* disable effect - stops at end of low cycle */
if (!m_schaser_effect_555_is_low)
{
m_schaser_effect_555_time_remain = m_schaser_effect_555_timer->time_left();
m_schaser_effect_555_time_remain_savable = m_schaser_effect_555_time_remain.as_double();
m_schaser_effect_555_timer->adjust(attotime::never);
}
}
m_schaser_last_effect = effect;
}
m_schaser_explosion = BIT(data, 5);
if (m_schaser_explosion)
{
m_sn->amplitude_res_w(1.0 / (1.0/RES_K(200) + 1.0/RES_K(68)));
}
else
{
m_sn->amplitude_res_w(RES_K(200));
}
m_sn->enable_w(!(m_schaser_effect_555_is_low || m_schaser_explosion));
m_sn->one_shot_cap_voltage_w(!(m_schaser_effect_555_is_low || m_schaser_explosion) ? 0 : sn76477_device::EXTERNAL_VOLTAGE_DISCONNECT);
m_sn->mixer_b_w(m_schaser_explosion);
}
WRITE8_MEMBER(_8080bw_state::schaser_sh_port_2_w)
{
/* bit 0 - Music (DAC) (SX6)
bit 1 - Sound Enable (SX7)
bit 2 - Coin Lockout (SX8)
bit 3 - Field Control A (SX9)
bit 4 - Field Control B (SX10)
bit 5 - Flip Screen */
m_discrete->write(SCHASER_MUSIC_BIT, BIT(data, 0));
m_discrete->write(SCHASER_SND_EN, BIT(data, 1));
machine().sound().system_enable(BIT(data, 1));
machine().bookkeeping().coin_lockout_global_w(BIT(data, 2));
m_schaser_background_disable = BIT(data, 3);
m_schaser_background_select = BIT(data, 4);
m_flip_screen = BIT(data, 5) & BIT(ioport("IN2")->read(), 6);
m_port_2_last_extra = data;
}
TIMER_DEVICE_CALLBACK_MEMBER(_8080bw_state::schaser_effect_555_cb)
{
int effect = param;
attotime new_time;
/* Toggle 555 output */
m_schaser_effect_555_is_low = !m_schaser_effect_555_is_low;
m_schaser_effect_555_time_remain = attotime::zero;
m_schaser_effect_555_time_remain_savable = m_schaser_effect_555_time_remain.as_double();
if (m_schaser_effect_555_is_low)
new_time = PERIOD_OF_555_ASTABLE(0, RES_K(20), CAP_U(1)) / 2;
else
{
if (effect)
new_time = attotime(0, ATTOSECONDS_PER_SECOND * .8873 * schaser_effect_rc[effect]);
else
new_time = attotime::never;
}
m_schaser_effect_555_timer->adjust(new_time, effect);
m_sn->enable_w(!(m_schaser_effect_555_is_low || m_schaser_explosion));
m_sn->one_shot_cap_voltage_w(!(m_schaser_effect_555_is_low || m_schaser_explosion) ? 0 : sn76477_device::EXTERNAL_VOLTAGE_DISCONNECT);
}
void _8080bw_state::schaser_reinit_555_time_remain()
{
address_space &space = m_maincpu->space(AS_PROGRAM);
m_schaser_effect_555_time_remain = attotime::from_double(m_schaser_effect_555_time_remain_savable);
schaser_sh_port_2_w(space, 0, m_port_2_last_extra);
}
MACHINE_START_MEMBER(_8080bw_state,schaser_sh)
{
save_item(NAME(m_schaser_explosion));
save_item(NAME(m_schaser_effect_555_is_low));
save_item(NAME(m_schaser_effect_555_time_remain_savable));
save_item(NAME(m_port_2_last_extra));
machine().save().register_postload(save_prepost_delegate(FUNC(_8080bw_state::schaser_reinit_555_time_remain), this));
}
MACHINE_RESET_MEMBER(_8080bw_state,schaser_sh)
{
address_space &space = m_maincpu->space(AS_PROGRAM);
m_schaser_effect_555_is_low = 0;
m_schaser_effect_555_timer->adjust(attotime::never);
schaser_sh_port_1_w(space, 0, 0);
schaser_sh_port_2_w(space, 0, 0);
m_schaser_effect_555_time_remain = attotime::zero;
m_schaser_effect_555_time_remain_savable = m_schaser_effect_555_time_remain.as_double();
}
/*******************************************************/
/* */
/* Zenitone Microsec "Invaders Revenge" */
/* */
/*******************************************************/
WRITE8_MEMBER(_8080bw_state::invrvnge_port03_w)
{
m_sound_data = data;
}
WRITE8_MEMBER(_8080bw_state::invrvnge_port05_w)
{
/*
00 - normal play
0A, 0E - alternate during play/attract at about once per second (invrvngegw only) purpose unknown
01 - briefly at boot time
10 - different colour map (or screen red) when you die
20 - flip screen */
m_screen_red = BIT(data, 4);
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
// no sound-related writes?
}
// The timer frequency controls the speed of the sounds
TIMER_DEVICE_CALLBACK_MEMBER(_8080bw_state::nmi_timer)
{
m_timer_state ^= 1;
m_audiocpu->set_input_line(INPUT_LINE_NMI, m_timer_state ? ASSERT_LINE : CLEAR_LINE );
}
/****************************************************/
/* Rolling Crash / Moon Base */
/* - Moon Base uses same ports and bits as invaders */
/* - Press Left or Right to choose game to play */
/****************************************************/
WRITE8_MEMBER(_8080bw_state::rollingc_sh_port_w)
{
uint8_t rising_bits = data & ~m_port_3_last_extra;
if (rising_bits & 0x02) m_samples->start(4, 0); /* Steering */
if (rising_bits & 0x04) m_samples->start(0, 1); /* Collision */
if (rising_bits & 0x10) m_samples->start(1, 8); /* Computer car is starting to move */
m_port_3_last_extra = data;
}
/*****************************************/
/* Lupin III preliminary sound */
/* Correct samples not available */
/*****************************************/
const char *const lupin3_sample_names[] =
{
"*lupin3",
"cap", /* go to jail */
"bark", /* dog barking */
"walk1", /* walk, get money */
"walk2", /* walk, get money */
"warp", /* translocate, deposit money */
"extend", /* bonus man */
"kick", /* lands on top of building, wife kicks man */
nullptr
};
WRITE8_MEMBER( _8080bw_state::lupin3_00_w )
{
m_discrete->write(INDIANBT_MUSIC_DATA, data);
}
WRITE8_MEMBER(_8080bw_state::lupin3_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
static uint8_t lupin3_step = 2;
if (rising_bits & 0x01)
{
m_samples->start(0, lupin3_step); /* Walking, steal money */
lupin3_step ^= 1;
}
m_sn->enable_w(data & 0x02 ? 0:1); /* Helicopter */
if (rising_bits & 0x04) m_samples->start(1, 4); /* Translocate */
if (rising_bits & 0x08) m_samples->start(0, 0); /* Jail */
if (rising_bits & 0x10) m_samples->start(2, 5); /* Bonus Man */
//machine().sound().system_enable(data & 0x20);
//machine().bookkeeping().coin_lockout_global_w(data & 0x80);
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::lupin3_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(0, 6); /* Lands on top of building, wife kicks man */
//if (rising_bits & 0x02) m_samples->start(3, 7); /* deposit money, start intermission, end game */
//if (rising_bits & 0x04) m_samples->start(4, 7); /* deposit money, start intermission, Slides down rope */
//if (rising_bits & 0x08) m_samples->start(5, 7); /* start intermission, end game */
if (rising_bits & 0x10) m_samples->start(3, 1); /* Dog barking */
m_color_map = data & 0x40;
m_flip_screen = BIT(data, 5) & BIT(ioport("IN2")->read(), 2);
m_port_2_last_extra = data;
}
/*****************************************/
/* Space Chaser (CV) preliminary sound */
/* Much more work needs to be done */
/*****************************************/
WRITE8_MEMBER(_8080bw_state::schasercv_sh_port_1_w)
{
/* bit 2 = 2nd speedup
bit 3 = 1st speedup
Death is a stream of ff's with some fe's thrown in */
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x02) m_samples->start(1, 6); /* Ran over a dot */
if (rising_bits & 0x10) m_samples->start(0, 1); /* Death */
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::schasercv_sh_port_2_w)
{
m_speaker->level_w(BIT(data, 0)); /* End-of-Level */
machine().sound().system_enable(data & 0x10);
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
}
/*****************************************/
/* Crash Road preliminary sound */
/* Much more work needs to be done */
/*****************************************/
WRITE8_MEMBER(_8080bw_state::crashrd_port03_w)
{
int effect;
/* bit 0 - Dot Sound Pitch (SX1)
bit 2 - Explosion (SX5)
bit 4 - Dot Sound Enable (SX0)
bit 5 - Effect Sound C (SX4) */
m_discrete->write(SCHASER_SND_EN, BIT(data,5));
machine().sound().system_enable(BIT(data,5));
m_discrete->write(SCHASER_DOT_EN, BIT(data, 4));
m_discrete->write(SCHASER_DOT_SEL, BIT(data, 0));
/* The effect is a variable rate 555 timer. A diode/resistor array is used to
* select the frequency. Because of the diode voltage drop, we can not use the
* standard 555 time formulas. Also, when effect=0, the charge resistor
* is disconnected. This causes the charge on the cap to slowly bleed off, but
* but the bleed time is so long, that we can just cheat and put the time on hold
* when effect = 0. */
effect = 0; //(data >> 2) & 0x07;
if (m_schaser_last_effect != effect)
{
if (effect)
{
if (m_schaser_effect_555_time_remain != attotime::zero)
{
/* timer re-enabled, use up remaining 555 high time */
m_schaser_effect_555_timer->adjust(m_schaser_effect_555_time_remain, effect);
}
else if (!m_schaser_effect_555_is_low)
{
/* set 555 high time */
attotime new_time = attotime(0, ATTOSECONDS_PER_SECOND * .8873 * schaser_effect_rc[effect]);
m_schaser_effect_555_timer->adjust(new_time, effect);
}
}
else
{
/* disable effect - stops at end of low cycle */
if (!m_schaser_effect_555_is_low)
{
m_schaser_effect_555_time_remain = m_schaser_effect_555_timer->time_left();
m_schaser_effect_555_time_remain_savable = m_schaser_effect_555_time_remain.as_double();
m_schaser_effect_555_timer->adjust(attotime::never);
}
}
m_schaser_last_effect = effect;
}
m_schaser_explosion = BIT(data, 2);
if (m_schaser_explosion)
{
m_sn->amplitude_res_w(1.0 / (1.0/RES_K(200) + 1.0/RES_K(68)));
}
else
{
m_sn->amplitude_res_w(RES_K(200));
}
m_sn->enable_w(!(m_schaser_effect_555_is_low || m_schaser_explosion));
m_sn->one_shot_cap_voltage_w(!(m_schaser_effect_555_is_low || m_schaser_explosion) ? 0 : sn76477_device::EXTERNAL_VOLTAGE_DISCONNECT);
m_sn->mixer_b_w(m_schaser_explosion);
}
WRITE8_MEMBER(_8080bw_state::crashrd_port05_w)
{
// bit 0 = bitstream audio
// bit 4 = not sure
m_discrete->write(SCHASER_MUSIC_BIT, BIT(data, 0));
}
/*******************************************************************/
/* Yosakdon preliminary sound */
/* No information available as what the correct sounds are */
/*******************************************************************/
WRITE8_MEMBER(_8080bw_state::yosakdon_sh_port_1_w)
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(0, 3); /* Game Over */
if (rising_bits & 0x02) m_samples->start(2, 0); /* Bird dead */
if (rising_bits & 0x04) m_samples->start(0, 1); /* Rifle being fired */
if (rising_bits & 0x08) m_samples->start(1, 2); /* Man dead */
if (rising_bits & 0x10) m_samples->start(5, 8); /* Bonus Man? */
machine().sound().system_enable(data & 0x20);
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::yosakdon_sh_port_2_w)
{
uint8_t rising_bits = data & ~m_port_2_last_extra;
if (rising_bits & 0x01) m_samples->start(1, 6); /* Ready? , Game Over */
if (rising_bits & 0x04) m_samples->start(3, 7); /* Big bird dead */
m_sn->enable_w(data & 0x08 ? 0:1); /* Big bird */
if (rising_bits & 0x10) m_samples->start(2, 7); /* Game Over */
m_flip_screen = BIT(data, 5) & ioport(CABINET_PORT_TAG)->read();
m_port_2_last_extra = data;
}
/*****************************************/
/* shuttlei preliminary sound */
/* Proper samples are unavailable */
/*****************************************/
WRITE8_MEMBER(_8080bw_state::shuttlei_sh_port_1_w)
{
/* bit 3 is high while you are alive and playing */
uint8_t rising_bits = data & ~m_port_1_last_extra;
if (rising_bits & 0x01) m_samples->start(4, 4); /* Fleet move */
if (rising_bits & 0x02) m_samples->start(5, 8); /* Extra Tank */
m_sn->enable_w(data & 0x04 ? 0:1); /* UFO */
m_port_1_last_extra = data;
}
WRITE8_MEMBER(_8080bw_state::shuttlei_sh_port_2_w)
{
switch (data)
{
case 0x23:
m_samples->start(2, 2); /* Hit */
break;
case 0x2b:
m_samples->start(0, 0); /* Shoot */
break;
case 0xa3:
m_samples->start(3, 7); /* Hit UFO */
break;
case 0xab:
m_samples->start(1, 1); /* Death */
break;
}
}
/*****************************************/
/* "Darth Vader" preliminary sound */
/* Proper samples are unavailable */
/*****************************************/
WRITE8_MEMBER( _8080bw_state::darthvdr_00_w )
{
m_flip_screen = BIT(data, 0) & ioport(CABINET_PORT_TAG)->read();
}
WRITE8_MEMBER( _8080bw_state::darthvdr_08_w )
{
uint8_t rising_bits = data & ~m_port_1_last_extra;
machine().sound().system_enable(data & 0x01);
if (rising_bits & 0x02) m_samples->start(0, 0); /* Shoot */
if (rising_bits & 0x04) m_samples->start(3, 7); /* Hit UFO */
if (rising_bits & 0x10) m_samples->start(5, 8); /* Bonus */
m_sn->enable_w(data & 0x20 ? 0:1); /* UFO */
if (rising_bits & 0x40) m_samples->start(1, 1); /* Death */
if (rising_bits & 0x80) m_samples->start(2, 2); /* Hit */
if (rising_bits & 0x08)
{
m_samples->start(4, m_fleet_step); /* Fleet move in 4 steps */
m_fleet_step++;
if (m_fleet_step > 6) m_fleet_step = 3;
}
m_port_1_last_extra = data;
}
/*********************************************************/
/* */
/* Model Racing "Cane" (Slightly based on Claybuster hw) */
/* */
/*********************************************************/
#define CANE_CLOCK (19968000.0)
#define CANE_H64 CANE_CLOCK /2 /2 /4
/* Nodes - Sound enable */
#define CANE_SND_EN NODE_05
/* Nodes - Adjusters */
#define CANE_VR1 NODE_07 // Gain for 76477
#define CANE_VR2 NODE_08 // VR attached to the output of the TOS
#define CANE_VR3 NODE_09 // VR for SFX generated by the 555
/* Nodes - sn76477 Sounds */
#define CANE_EXP_STREAM NODE_03
#define CANE_EXP_SND NODE_11
/* Nodes - BGM */
#define CANE_MUSIC_DATA NODE_06
#define CANE_MUSIC_NOTE NODE_40
#define CANE_MUSIC_NOTE_PF NODE_01
#define CANE_MUSIC_SND NODE_12
/* Nodes - 555 sfx */
#define CANE_76477_PIN6 NODE_13
#define CANE_555_CLAMPED NODE_14
#define CANE_555_ONESHOT NODE_15
#define CANE_555_EN NODE_16
#define CANE_TMP_SND NODE_17
#define CANE_SFX_SND NODE_18
/* Node output */
#define CANE_SOUND_OUT NODE_90
static INPUT_PORTS_START( cane_audio )
PORT_START("VR1")
PORT_ADJUSTER( 80, "VR1 - SFX from 76477" )
PORT_START("VR2")
PORT_ADJUSTER( 90, "VR2 - TOS music" )
PORT_START("VR3")
PORT_ADJUSTER( 70, "VR3 - Shoot SFX from 555" )
INPUT_PORTS_END
cane_audio_device::cane_audio_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock) :
device_t(mconfig, CANE_AUDIO, tag, owner, clock),
m_vco_timer(*this, "vco_timer"),
m_sn(*this, "snsnd"),
m_discrete(*this, "discrete"),
m_vco_rc_chargetime(attotime::never)
{
}
void cane_audio_device::device_add_mconfig(machine_config &config)
{
TIMER(config, m_vco_timer).configure_periodic(FUNC(cane_audio_device::vco_voltage_timer), attotime::from_hz(1000));
SPEAKER(config, "mono").front_center();
SN76477(config, m_sn);
// Amplitude res in the schematic is connected to a 470K potentiometer, so from the schematic is impossible to know the real res.
// This parameter drives the amp just before the audio output pin 13.
m_sn->set_amp_res(100+RES_K(20));
m_sn->set_noise_params(RES_K(39), RES_K(1), CAP_P(1000));
m_sn->set_decay_res(RES_M(1));
m_sn->set_attack_params(CAP_U(1.0), RES_K(47));
m_sn->set_feedback_res(RES_K(4.7));
m_sn->set_vco_params(0, CAP_P(3300), RES_K(100));
m_sn->set_pitch_voltage(5.0);
m_sn->set_slf_params(CAP_U(1.0), RES_K(33));
m_sn->set_oneshot_params(CAP_U(10), RES_K(100));
m_sn->set_vco_mode(0);
m_sn->set_mixer_params(0, 0, 0);
m_sn->set_envelope_params(1, 0);
m_sn->set_enable(0);
m_sn->add_route(0, "discrete", 1.0, 0);
DISCRETE(config, m_discrete, cane_discrete);
m_discrete->add_route(ALL_OUTPUTS, "mono", 1.0);
}
ioport_constructor cane_audio_device::device_input_ports() const
{
return INPUT_PORTS_NAME(cane_audio);
}
void cane_audio_device::device_start()
{
// provare a commentare
m_vco_rc_chargetime = attotime::never;
save_item(NAME(m_vco_rc_chargetime));
}
void cane_audio_device::sh_port_1_w(u8 data)
{
/*
bit 0 - SX0 - Sound enable on mixer
bit 1 - SX1 - SN76477 - Mixer select C - pin 27
bit 2 - SX2 - SN76477 - Mixer select A - pin 26
bit 3 - SX3 - SN76477 - Mixer select B - pin 25
bit 4 - SX4 - NE555 - Trigger (Step, high output level for 1.1*RC = 1.1*100K*0.47u = 51.7 ms)
*/
m_discrete->write(CANE_SND_EN, data & 0x01); // BIT(data, 0) - bit 0 - SX0 - Sound enable on mixer
m_discrete->write(CANE_555_EN, data & 0x10); // BIT(data, 4) - bit 4 - SX4 - NE555 - Trigger
// 76477 enable bit is connected to the select line of the out port 3 (inverted).
m_sn->enable_w(1);
m_sn->set_mixer_params(BIT(data, 2), BIT(data, 3), BIT(data, 1));
m_vco_timer->adjust(attotime::zero, m_vco_timer->param(), attotime::from_hz(1000));
m_vco_rc_chargetime = m_vco_timer->start_time();
// Little hack...
// To be precise I should enable the 76477 every time the CPU reads or write to a port different from port 3
// and disable it every time the CPU read/write from/to port 3.
// Actually this can not be done easily so I decided to enable it preemptively here after every port 3 access
m_sn->enable_w(0);
}
void cane_audio_device::music_w(u8 data)
{
m_sn->enable_w(1);
m_discrete->write(CANE_MUSIC_DATA, data);
}
void cane_audio_device::sn76477_en_w(u8 data)
{
m_sn->enable_w(0);
}
void cane_audio_device::sn76477_dis_w(u8 data)
{
m_sn->enable_w(1);
}
/*******************************************************************************************************************************************************/
/* Cane discrete implementation, slightly based on Claybuster hw. */
/* This implementation doesn't pretend to be accurate thus trying to be at least functionally similar. */
/* */
/* Port 1 - SX4 CANE_VR3 Port 1 - SX0 */
/* | | | */
/* CANE_555_EN | | */
/* | | | */
/* +------------------+ | | */
/* | CANE_555_ONESHOT | | | */
/* +------------------+ | | */
/* | | | */
/* v v | */
/* sn76477 pin 6 +------------------+ +---+ +--------------+ +---+ +--------------+ | */
/* CLAMP(0, 5V) ->| CANE_555_CLAMPED |->| * |->| CANE_TMP_SND |->| * |->| CANE_SFX_SND | CANE_SND_EN */
/* (DISCRETE_NOISE) +------------------+ +---+ +--------------+ +---+ +--------------+ | */
/* | | */
/* CANE_VR1 | | */
/* | | | */
/* v v v */
/* sn76477 output +-----------------+ +---+ +--------------+ +---+ +----------------+ */
/* DISCRETE_INPUTX_STREAM ->| CANE_EXP_STREAM |->| * |->| CANE_EXP_SND |->| + |->| CANE_SOUND_OUT |->OUT */
/* +-----------------+ +---+ +--------------+ +---+ +----------------+ */
/* ^ */
/* | */
/* CANE_MUSIC_DATA +--------------------+ +-----------+ +-----------------+ +---+ +----------------+ */
/* Port 5 data---DISCRETE_INPUT_DATA ->| CANE_MUSIC_NOTE_PF |->| CR_FILTER |->| CANE_MUSIC_NOTE |->| * |->| CANE_MUSIC_SND | */
/* DISCRETE_NOTE +--------------------+ +-----------+ +-----------------+ +---+ +----------------+ */
/* RES_K(10) ^ */
/* CAP_U(0.1) | */
/* CANE_VR2 */
/* */
/* */
/*******************************************************************************************************************************************************/
DISCRETE_SOUND_START(cane_discrete)
/************************************************/
/* Input register mapping for cane */
/************************************************/
DISCRETE_INPUT_DATA (CANE_MUSIC_DATA)
DISCRETE_INPUT_LOGIC (CANE_555_EN)
// scale to 0-2.5V
DISCRETE_INPUTX_STREAM(CANE_EXP_STREAM, 0, 0.5, 0)
DISCRETE_INPUT_LOGIC (CANE_SND_EN)
/************************************************/
/* Volume adjusters. */
/* We will set them to adjust the realitive */
/* gains. */
/************************************************/
DISCRETE_ADJUSTMENT(CANE_VR1, 0, 0.33*6, DISC_LINADJ, "VR1") // Gain for 76477
DISCRETE_ADJUSTMENT(CANE_VR2, 0, 0.33*60000, DISC_LINADJ, "VR2") // VR attached to the output of the TOS
DISCRETE_ADJUSTMENT(CANE_VR3, 0, 0.33*60000, DISC_LINADJ, "VR3") // VR for SFX generated by the 555
/************************************************/
/* From 555 */
/************************************************/
/* TODO: find real noise freq and amplitude */
/* width was simulated with ltspice using Claybuster schematic as a source and it's value is about 51ms */
DISCRETE_NOISE(CANE_76477_PIN6,
1, /* ENAB */
1280, /* FREQ - Guessed */
1, /* AMP */
0) /* BIAS - fake AC is fine*/
DISCRETE_CLAMP(CANE_555_CLAMPED,
CANE_76477_PIN6, /* input node */
0.0, /* minimum */
5.0) /* maximum */
DISCRETE_ONESHOT(CANE_555_ONESHOT,
CANE_555_EN, /* trigger node */
1, /* amplitude node or static value */
0.05, /* width (in seconds) node or static value - 50 ms*/
DISC_ONESHOT_FEDGE | DISC_ONESHOT_RETRIG) /* type of oneshot static value */
DISCRETE_MULTIPLY(CANE_TMP_SND, CANE_555_CLAMPED, CANE_555_ONESHOT)
DISCRETE_MULTIPLY(CANE_SFX_SND, CANE_TMP_SND, CANE_VR3)
/*****************************************************************************
*
* Music Generator (TOS)
*
* Values for this section of the sound hardware where derived from comments
* in the source code and the analysis of TOS.ED sources.
*
* For further info look at the relevant comments reported into
* drivers/8080bw.cpp
*
******************************************************************************/
DISCRETE_NOTE(CANE_MUSIC_NOTE_PF, 1, CANE_H64, CANE_MUSIC_DATA, 255, 1, DISC_CLK_IS_FREQ)
DISCRETE_CRFILTER(CANE_MUSIC_NOTE, CANE_MUSIC_NOTE_PF, RES_K(10), CAP_U(0.1)) // high pass filter
DISCRETE_MULTIPLY(CANE_MUSIC_SND, CANE_MUSIC_NOTE, CANE_VR2)
/******************************************************************************
*
* From 76477 output
*
******************************************************************************/
DISCRETE_MULTIPLY(CANE_EXP_SND, CANE_EXP_STREAM, CANE_VR1)
/******************************************************************************
*
* Final Mixing and Output
*
******************************************************************************/
DISCRETE_ADDER3(CANE_SOUND_OUT, CANE_SND_EN, CANE_SFX_SND, CANE_EXP_SND, CANE_MUSIC_SND)
DISCRETE_OUTPUT(CANE_SOUND_OUT, 1)
//LOG
/*
DISCRETE_WAVLOG1(CANE_EXP_STREAM, 1)
DISCRETE_WAVLOG1(CANE_EXP_SND, 1)
DISCRETE_WAVLOG1(CANE_TMP_SND, 1)
DISCRETE_WAVLOG1(CANE_SFX_SND, 1)
DISCRETE_WAVLOG1(CANE_MUSIC_NOTE, 1)
DISCRETE_WAVLOG1(CANE_MUSIC_SND, 1)
DISCRETE_WAVLOG1(CANE_SOUND_OUT, 1)
*/
DISCRETE_SOUND_END
TIMER_DEVICE_CALLBACK_MEMBER(cane_audio_device::vco_voltage_timer)
{
const double delta = (m_vco_timer->fire_time() - m_vco_rc_chargetime).as_double();
const double voltage = 5 * (1 - std::exp(-delta / 47));
LOG("t = %d\n", delta);
LOG("vco_voltage = %d\n", voltage);
m_sn->vco_voltage_w(voltage);
}