// 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 //#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); }