// license:BSD-3-Clause // copyright-holders:Mike Coates #include "emu.h" #include "sound/samples.h" #include "includes/circus.h" const char *const circus_sample_names[] = { "*circus", "pop", "miss", "bounce", nullptr }; const char *const crash_sample_names[] = { "*crash", "crash", nullptr }; const char *const ripcord_sample_names[] = { "*ripcord", "splash", "scream", "chute", "whistle", nullptr }; const char *const robotbwl_sample_names[] = { "*robotbwl", "hit", "roll", "balldrop", "demerit", "reward", nullptr }; /* Nodes - Inputs */ #define CIRCUS_MUSIC_BIT NODE_01 /* Nodes - Sounds */ #define CIRCUS_MUSIC_SND NODE_10 DISCRETE_SOUND_START(circus_discrete) /************************************************/ /* Input register mapping for circus */ /************************************************/ DISCRETE_INPUTX_NOT(CIRCUS_MUSIC_BIT, 20000, 0, 1) /************************************************/ /* Music is just a 1 bit DAC */ /************************************************/ DISCRETE_CRFILTER(CIRCUS_MUSIC_SND, CIRCUS_MUSIC_BIT, RES_K(50), CAP_U(.1)) /* 50K is just an average value */ DISCRETE_OUTPUT(CIRCUS_MUSIC_SND, 1) DISCRETE_SOUND_END static const discrete_mixer_desc crash_mixer = { DISC_MIXER_IS_RESISTOR, {RES_K(22), RES_K(5)}, {0}, {CAP_U(.1), CAP_U(.1)}, 0, RES_K(100), 0, CAP_U(.1), 0, 10000 }; static const discrete_555_desc crash_beeper_555m = { DISC_555_OUT_SQW | DISC_555_OUT_DC | DISC_555_TRIGGER_IS_LOGIC, 5, // B+ voltage of 555 DEFAULT_555_VALUES }; static const discrete_555_desc crash_beeper_555a = { DISC_555_OUT_SQW | DISC_555_OUT_DC, 5, // B+ voltage of 555 DEFAULT_555_VALUES }; /* Nodes - Inputs */ #define CRASH_MUSIC_BIT NODE_01 #define CRASH_BEEPER_EN NODE_02 /* Nodes - Adjusters */ #define CRASH_R63 NODE_10 #define CRASH_R39 NODE_11 /* Nodes - Sounds */ #define CRASH_MUSIC_SND NODE_20 #define CRASH_BEEPER_SND NODE_21 DISCRETE_SOUND_START(crash_discrete) /************************************************/ /* Input register mapping for crash */ /************************************************/ DISCRETE_INPUT_LOGIC(CRASH_MUSIC_BIT) DISCRETE_INPUT_PULSE(CRASH_BEEPER_EN, 1) DISCRETE_ADJUSTMENT(CRASH_R63, 0, 5.0*RES_K(100)/(RES_K(47+100))-0.5, DISC_LINADJ, "R63") DISCRETE_ADJUSTMENT(CRASH_R39, 0, 1, DISC_LINADJ, "R39") /************************************************/ /* Music is just a 1 bit DAC */ /************************************************/ DISCRETE_MULTADD(CRASH_MUSIC_SND, CRASH_MUSIC_BIT, CRASH_R63, 0.5) /************************************************/ /* Beeper - oneshot gates tone */ /************************************************/ DISCRETE_555_MSTABLE(NODE_30, 1, CRASH_BEEPER_EN, RES_K(22), CAP_U(.47), &crash_beeper_555m) DISCRETE_555_ASTABLE(NODE_31, NODE_30, RES_K(4.7), RES_K(4.7), CAP_U(.1), &crash_beeper_555a) DISCRETE_MULTIPLY(CRASH_BEEPER_SND, NODE_31, CRASH_R39) /************************************************/ /* Final mix with gain */ /************************************************/ DISCRETE_MIXER2(NODE_90, 1, CRASH_MUSIC_SND, CRASH_BEEPER_SND, &crash_mixer) DISCRETE_OUTPUT(NODE_90, 1) DISCRETE_SOUND_END /* Nodes - Inputs */ #define ROBOTBWL_MUSIC_BIT NODE_01 /* Nodes - Sounds */ #define ROBOTBWL_MUSIC_SND NODE_10 DISCRETE_SOUND_START(robotbwl_discrete) /************************************************/ /* Input register mapping for robotbwl */ /************************************************/ DISCRETE_INPUTX_LOGIC(ROBOTBWL_MUSIC_BIT, 30000, 0, 0) /************************************************/ /* Music is just a 1 bit DAC */ /************************************************/ DISCRETE_RCFILTER(NODE_20, ROBOTBWL_MUSIC_BIT, RES_K(10), CAP_U(.47)) DISCRETE_CRFILTER(ROBOTBWL_MUSIC_SND, NODE_20, RES_K(10) + RES_K(22), CAP_U(.1)) DISCRETE_OUTPUT(ROBOTBWL_MUSIC_SND, 1) DISCRETE_SOUND_END /* This register controls the clown image currently displayed */ /* and also is used to enable the amplifier and trigger the */ /* discrete circuitry that produces sound effects and music */ WRITE8_MEMBER(circus_state::circus_clown_z_w) { m_clown_z = (data & 0x0f); *(memregion("maincpu")->base() + 0x8000) = data; logerror("Z:%02x\n",data); //DEBUG /* Bits 4-6 enable/disable trigger different events */ switch (m_game_id) { case 1: /* circus */ case 4: /* ripcord */ switch ((data & 0x70) >> 4) { case 0 : /* All Off */ m_discrete->write(CIRCUS_MUSIC_BIT, 0); break; case 1 : /* Music */ m_discrete->write(CIRCUS_MUSIC_BIT, 1); break; case 2 : /* Circus = Pop; Rip Cord = Splash */ m_samples->start(0, 0); break; case 3 : /* Normal Video */ break; case 4 : /* Circus = Miss; Rip Cord = Scream */ m_samples->start(1, 1); break; case 5 : /* Invert Video */ break; case 6 : /* Circus = Bounce; Rip Cord = Chute Open */ m_samples->start(2, 2); break; case 7 : /* Circus = not used; Rip Cord = Whistle */ if (m_game_id == 4) m_samples->start(3, 3); break; } break; case 2: /* robotbwl */ m_discrete->write(ROBOTBWL_MUSIC_BIT, data & 0x08); /* Footsteps */ if (data & 0x40) /* Hit */ m_samples->start(0, 0); if (data & 0x20) /* Roll */ m_samples->start(1, 1); if (data & 0x10) /* Ball Drop */ m_samples->start(2, 2); if (data & 0x02) /* Demerit */ m_samples->start(3, 3); if (data & 0x01) /* Reward */ m_samples->start(4, 4); // if (data & 0x04) /* Invert */ break; case 3: /* crash */ /* Only the crash can be done with a sample */ switch ((data & 0x70) >> 4) { case 0 : /* All Off */ m_discrete->write(CRASH_MUSIC_BIT, 0); break; case 1 : /* Music */ m_discrete->write(CRASH_MUSIC_BIT, 1); break; case 2 : /* Crash */ m_samples->start(0, 0); break; case 3 : /* Normal Video and Beep */ m_discrete->write(CRASH_BEEPER_EN, 0); break; case 4 : /* Skid */ break; case 5 : /* Invert Video and Beep */ m_discrete->write(CRASH_BEEPER_EN, 0); break; case 6 : /* Hi Motor */ break; case 7 : /* Low Motor */ break; } break; } /* Bit 7 enables amplifier (0 = on) */ machine().sound().system_mute(data & 0x80); }