1 // license:BSD-3-Clause 2 // copyright-holders:Aaron Giles,Ernesto Corvi 3 #include "emu.h" 4 #include "audio/cliffhgr.h" 5 6 7 #define CLIFF_ENABLE_SND_1 NODE_01 8 #define CLIFF_ENABLE_SND_2 NODE_02 9 10 static const discrete_555_desc desc_cliffhgr_555 = 11 { 12 DISC_555_OUT_ENERGY | DISC_555_OUT_DC, 13 5, /* B+ voltage of 555 */ 14 DEFAULT_555_VALUES 15 }; 16 17 static const discrete_mixer_desc desc_cliffhgr_mixer = 18 { 19 DISC_MIXER_IS_RESISTOR, 20 { 1.0/(1.0/RES_K(4.7)+1.0/RES_K(10))+RES_K(10), 1.0/(1.0/RES_K(5.1)+1.0/RES_K(12))+RES_K(10) }, 21 { 0, 0 }, 22 { CAP_U(4.7), CAP_U(4.7) }, 23 0, 24 RES_K(10), 25 0, 26 CAP_U(4.7), 27 0, 28 8 29 }; 30 31 32 DISCRETE_SOUND_START(cliffhgr_discrete) 33 DISCRETE_INPUT_LOGIC(CLIFF_ENABLE_SND_1) 34 DISCRETE_INPUT_LOGIC(CLIFF_ENABLE_SND_2) 35 36 DISCRETE_555_ASTABLE(NODE_03, 1, RES_K(24), RES_K(10), CAP_U(0.047), &desc_cliffhgr_555) 37 DISCRETE_555_ASTABLE(NODE_04, 1, RES_K(24), RES_K(10), CAP_U(0.1), &desc_cliffhgr_555) 38 39 DISCRETE_ONOFF(NODE_05,CLIFF_ENABLE_SND_1,NODE_03) 40 DISCRETE_ONOFF(NODE_06,CLIFF_ENABLE_SND_2,NODE_04) 41 42 DISCRETE_RCFILTER(NODE_07,NODE_05,1.0/(1.0/RES_K(4.7)+1.0/RES_K(10)), CAP_U(0.1)) 43 DISCRETE_RCFILTER(NODE_08,NODE_06,1.0/(1.0/RES_K(5.1)+1.0/RES_K(12)), CAP_U(0.1)) 44 45 DISCRETE_GAIN(NODE_09,NODE_07,RES_K(10)/(RES_K(4.7)+RES_K(10))) 46 DISCRETE_GAIN(NODE_10,NODE_08,RES_K(12)/(RES_K(5.1)+RES_K(12))) 47 48 DISCRETE_MIXER2(NODE_11,1,NODE_09,NODE_10,&desc_cliffhgr_mixer) 49 50 // DISCRETE_WAVELOG1(NODE_11,32767/9) 51 // DISCRETE_WAVELOG2(CLIFF_ENABLE_SND_1,1000,NODE_09,1000) 52 // DISCRETE_WAVELOG2(CLIFF_ENABLE_SND_2,1000,NODE_10,1000) 53 DISCRETE_OUTPUT(NODE_11,32767/9) 54 DISCRETE_SOUND_END 55