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Diffstat (limited to 'src/mame/audio/8080bw.cpp')
-rw-r--r-- | src/mame/audio/8080bw.cpp | 1682 |
1 files changed, 0 insertions, 1682 deletions
diff --git a/src/mame/audio/8080bw.cpp b/src/mame/audio/8080bw.cpp deleted file mode 100644 index 2ae312b7d13..00000000000 --- a/src/mame/audio/8080bw.cpp +++ /dev/null @@ -1,1682 +0,0 @@ -// 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" */ -/* */ -/*******************************************************/ - -void _8080bw_state::invadpt2_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::invadpt2_sh_port_2_w(uint8_t data) -{ - /* 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 */ -/* */ -/*******************************************************/ - -void _8080bw_state::spacerng_sh_port_2_w(uint8_t data) -{ - 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" */ -/* */ -/*******************************************************/ - -void _8080bw_state::spcewars_sh_port_w(uint8_t data) -{ - 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 -}; - -void _8080bw_state::lrescue_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::lrescue_sh_port_2_w(uint8_t data) -{ - 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 */ -/* */ -/*******************************************************/ - -void _8080bw_state::cosmo_sh_port_2_w(uint8_t data) -{ - /* inverted flip screen bit */ - invadpt2_sh_port_2_w(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 - -void _8080bw_state::ballbomb_01_w(uint8_t data) -{ - m_discrete->write(BALLBOMB_MUSIC_DATA, data|0x80); -} - -void _8080bw_state::ballbomb_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::ballbomb_sh_port_2_w(uint8_t data) -{ - 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 - -void _8080bw_state::indianbt_sh_port_1_w(uint8_t data) -{ - /* 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; -} - -void _8080bw_state::indianbt_sh_port_2_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::indianbt_sh_port_3_w(uint8_t data) -{ - m_discrete->write(INDIANBT_MUSIC_DATA, data); -} - -void _8080bw_state::indianbtbr_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::indianbtbr_sh_port_2_w(uint8_t data) -{ - 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 - -void _8080bw_state::polaris_sh_port_1_w(uint8_t data) -{ - m_discrete->write(POLARIS_MUSIC_DATA, data); -} - -void _8080bw_state::polaris_sh_port_2_w(uint8_t data) -{ - /* 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); -} - -void _8080bw_state::polaris_sh_port_3_w(uint8_t data) -{ - 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) -}; - -void _8080bw_state::schaser_sh_port_1_w(uint8_t data) -{ - 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); -} - -void _8080bw_state::schaser_sh_port_2_w(uint8_t data) -{ - /* 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() -{ - m_schaser_effect_555_time_remain = attotime::from_double(m_schaser_effect_555_time_remain_savable); - schaser_sh_port_2_w(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) -{ - m_schaser_effect_555_is_low = 0; - m_schaser_effect_555_timer->adjust(attotime::never); - schaser_sh_port_1_w(0); - schaser_sh_port_2_w(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" */ -/* */ -/*******************************************************/ - -void _8080bw_state::invrvnge_port03_w(uint8_t data) -{ - m_sound_data = data; -} - -void _8080bw_state::invrvnge_port05_w(uint8_t data) -{ - /* - 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 */ -/****************************************************/ - -void _8080bw_state::rollingc_sh_port_w(uint8_t data) -{ - 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 -}; - -void _8080bw_state::lupin3_00_w (uint8_t data) -{ - m_discrete->write(INDIANBT_MUSIC_DATA, data); -} - -void _8080bw_state::lupin3_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::lupin3_sh_port_2_w(uint8_t data) -{ - 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 */ -/*****************************************/ - -void _8080bw_state::schasercv_sh_port_1_w(uint8_t data) -{ - /* 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; -} - -void _8080bw_state::schasercv_sh_port_2_w(uint8_t data) -{ - 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 */ -/*****************************************/ - -void _8080bw_state::crashrd_port03_w(uint8_t data) -{ - 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); -} - -void _8080bw_state::crashrd_port05_w(uint8_t data) -{ - // 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 */ -/*******************************************************************/ - -void _8080bw_state::yosakdon_sh_port_1_w(uint8_t data) -{ - 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; -} - -void _8080bw_state::yosakdon_sh_port_2_w(uint8_t data) -{ - 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 */ -/*****************************************/ - -void _8080bw_state::shuttlei_sh_port_1_w(uint8_t data) -{ - /* 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; -} - -void _8080bw_state::shuttlei_sh_port_2_w(uint8_t data) -{ - 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 */ -/*****************************************/ - -void _8080bw_state::darthvdr_00_w(uint8_t data) -{ - m_flip_screen = BIT(data, 0) & ioport(CABINET_PORT_TAG)->read(); -} - -void _8080bw_state::darthvdr_08_w(uint8_t data) -{ - 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_generic(FUNC(cane_audio_device::vco_voltage_timer)); - - 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); -} |