// license:CC0
// copyright-holders:Aaron Giles
//
// Netlist for Astro Blaster
//
// Derived from the schematics in the Astro Blaster manual.
//
// Known problems/issues:
//
// * All sounds work under the right conditions.
//
// * SONAR and BONUS sounds fail to trigger after the first
// few seconds. For some reason the triggering via CD4011
// never actually fires the one-shot that controls the
// duration of the sound.
//
// * Performance is poor, primarily due to the SONAR sound
// and its connection to the mixing net. All attempts at
// separating the two have ended in failure so far.
//
#include "netlist/devices/net_lib.h"
#include "nl_astrob.h"
//
// Optimizations
//
#define HLE_LASER_1_VCO (1)
#define HLE_LASER_2_VCO (1)
#define SIMPLIFY_SONAR (0) // only use one oscillator
#define ENABLE_SONAR_ALT (1) // use frontiers to separate oscillators, modify UGF
#define ENABLE_FRONTIERS (1)
#define UNDERCLOCK_NOISE_GEN (1)
//
// Hacks
//
#define ADD_CLIPPING_DIODES (1)
#define D_1N5231(name) ZDIODE(name, "1N5231")
#define D_1N914(name) DIODE(name, "1N914")
#define Q_2N4403(name) QBJT_EB(name, "2N4403")
// JFET transistors not supported, but this should do the trick
#define Q_2N4093(name) MOSFET(name, "NMOS(VTO=-1 CAPMOD=0)")
#define LM555_DIP NE555_DIP
#define LM566_DIP NE566_DIP
#define TTL_74LS00_DIP TTL_7400_DIP
#define TTL_74LS04_DIP TTL_7404_DIP
// Define some random factors (5%)
#define FRND1 1.023
#define FRND2 1.017
#define FRND3 1.005
#define FRND4 1.014
#define FRND5 1.049
#define FRND6 1.044
#define FRND7 1.016
#define FRND8 1.037
#define FRND9 1.030
#define FRND10 1.001
#define FRND11 1.034
#define FRND12 1.043
#define FRND13 1.011
#define FRND14 1.016
#define FRND15 1.011
#define FRND16 1.006
#define FRND17 1.009
#define FRND18 1.007
#define FRND19 1.035
#define FRND20 1.004
//
// Main netlist
//
NETLIST_START(astrob)
#if 1
SOLVER(Solver, 1000)
PARAM(Solver.DYNAMIC_TS, 1)
PARAM(Solver.DYNAMIC_MIN_TIMESTEP, 4e-5)
#if (SIMPLIFY_SONAR)
PARAM(Solver.Solver_54.DYNAMIC_MIN_TIMESTEP, 4e-6) // gets rid of NR loops failure
#else
#if !(ENABLE_SONAR_ALT)
PARAM(Solver.Solver_41.DYNAMIC_MIN_TIMESTEP, 6e-6) // gets rid of NR loops failure
#endif
#endif
#else
SOLVER(Solver, 48000)
#endif
// Overwrite model - the default model uses minimum datasheet
// specifications for 5V. These are for 10V and thus closer to the
// 12V used in this circuit.
NET_MODEL("CD4XXX FAMILY(TYPE=CMOS IVL=0.3 IVH=0.7 OVL=0.05 OVH=0.05 ORL=384 ORH=384)")
TTL_INPUT(I_LO_D0, 0)
NET_C(I_LO_D0, U31.1)
ALIAS(I_INVADER_1, U31.2)
TTL_INPUT(I_LO_D1, 0)
NET_C(I_LO_D1, U31.3)
ALIAS(I_INVADER_2, U31.4)
TTL_INPUT(I_LO_D2, 0)
NET_C(I_LO_D2, U31.11)
ALIAS(I_INVADER_3, U31.10)
TTL_INPUT(I_LO_D3, 0)
NET_C(I_LO_D3, U31.9)
ALIAS(I_INVADER_4, U31.8)
TTL_INPUT(I_LO_D4, 0)
NET_C(I_LO_D4, U30.13)
ALIAS(I_ASTROIDS, U30.12)
TTL_INPUT(I_LO_D5, 0)
ALIAS(I_MUTE, I_LO_D5)
TTL_INPUT(I_LO_D6, 0)
NET_C(I_LO_D6, U30.3, U29.11)
ALIAS(I_REFILL, U29.10)
ALIAS(I_REFILL_Q, U30.4)
TTL_INPUT(I_LO_D7, 0)
ALIAS(W, I_LO_D7)
NET_C(I_LO_D7, U31.5)
ALIAS(I_WARP, U31.6)
NET_C(GND, I_LO_D0.GND, I_LO_D1.GND, I_LO_D2.GND, I_LO_D3.GND, I_LO_D4.GND, I_LO_D5.GND, I_LO_D6.GND, I_LO_D7.GND)
NET_C(I_V5, I_LO_D0.VCC, I_LO_D1.VCC, I_LO_D2.VCC, I_LO_D3.VCC, I_LO_D4.VCC, I_LO_D5.VCC, I_LO_D6.VCC, I_LO_D7.VCC)
TTL_INPUT(I_HI_D0, 0)
NET_C(I_HI_D0, U26.5)
ALIAS(I_LASER_1, U26.6)
TTL_INPUT(I_HI_D1, 0)
NET_C(I_HI_D1, U26.3)
ALIAS(I_LASER_2, U26.4)
TTL_INPUT(I_HI_D2, 0)
NET_C(I_HI_D2, U26.11)
ALIAS(I_SHORT_EXPL, U26.10)
TTL_INPUT(I_HI_D3, 0)
NET_C(I_HI_D3, U26.9)
ALIAS(I_LONG_EXPL, U26.8)
TTL_INPUT(I_HI_D4, 0)
NET_C(I_HI_D4, U26.1)
ALIAS(I_ATTACK_RATE, U26.2)
TTL_INPUT(I_HI_D5, 0)
NET_C(I_HI_D5, U31.13)
ALIAS(I_RATE_RESET, U31.12)
TTL_INPUT(I_HI_D6, 0)
NET_C(I_HI_D6, U29.9)
ALIAS(I_BONUS, U29.8)
TTL_INPUT(I_HI_D7, 0)
NET_C(I_HI_D7, U29.5)
ALIAS(I_SONAR, U29.6)
NET_C(GND, I_HI_D0.GND, I_HI_D1.GND, I_HI_D2.GND, I_HI_D3.GND, I_HI_D4.GND, I_HI_D5.GND, I_HI_D6.GND, I_HI_D7.GND)
NET_C(I_V5, I_HI_D0.VCC, I_HI_D1.VCC, I_HI_D2.VCC, I_HI_D3.VCC, I_HI_D4.VCC, I_HI_D5.VCC, I_HI_D6.VCC, I_HI_D7.VCC)
ANALOG_INPUT(I_V5, 5)
ANALOG_INPUT(I_V12, 12)
ANALOG_INPUT(I_VM12, -12)
RES(R1, RES_K(100) * FRND1) // part of SONAR circuit that relies on subtle part differences
RES(R2, RES_K(1.5) * FRND2) // part of SONAR circuit that relies on subtle part differences
RES(R3, RES_K(330) * FRND3) // part of SONAR circuit that relies on subtle part differences
RES(R4, RES_K(10) * FRND4) // part of SONAR circuit that relies on subtle part differences
#if (SIMPLIFY_SONAR)
// use less resistance to account for only emulating 1/4 identical circuits
RES(R5, RES_K(17)) // part of SONAR circuit that relies on subtle part differences
#else
RES(R5, RES_K(68) * FRND5) // part of SONAR circuit that relies on subtle part differences
#endif
RES(R6, RES_K(68))
RES(R7, RES_K(22))
RES(R8, RES_K(18))
RES(R9, RES_K(33))
RES(R10, RES_K(100))
RES(R11, RES_K(150))
RES(R12, RES_K(39))
RES(R13, RES_K(330))
RES(R14, RES_K(47))
RES(R15, RES_K(220))
RES(R16, RES_K(10))
RES(R17, RES_K(10))
RES(R18, RES_M(2.7))
// RES(R19, RES_K(1))
RES(R20, RES_M(1))
RES(R21, RES_K(100))
RES(R22, RES_K(470))
RES(R23, RES_K(100))
RES(R24, RES_M(2.2))
RES(R25, RES_K(10))
RES(R26, RES_K(820))
RES(R27, RES_K(47))
RES(R28, RES_K(22))
RES(R29, RES_K(10))
RES(R30, RES_K(82))
RES(R31, RES_K(10))
RES(R32, RES_K(22))
RES(R33, RES_K(39))
RES(R34, RES_K(4.7))
RES(R35, RES_K(4.7))
RES(R36, RES_K(100) * FRND6) // part of SONAR circuit that relies on subtle part differences
RES(R37, RES_K(1.5) * FRND7) // part of SONAR circuit that relies on subtle part differences
RES(R38, RES_K(330) * FRND8) // part of SONAR circuit that relies on subtle part differences
RES(R39, RES_K(10) * FRND9) // part of SONAR circuit that relies on subtle part differences
RES(R40, RES_K(68) * FRND10) // part of SONAR circuit that relies on subtle part differences
RES(R41, RES_K(10))
RES(R42, RES_K(100))
RES(R43, RES_K(470))
RES(R44, RES_M(1))
RES(R45, RES_K(100))
RES(R46, RES_K(470))
RES(R47, RES_K(10))
RES(R48, RES_K(82))
RES(R49, RES_K(39))
RES(R50, RES_K(22))
RES(R51, RES_K(10))
RES(R52, RES_K(68))
RES(R53, RES_K(10))
RES(R54, RES_K(22))
RES(R55, RES_M(2.2))
RES(R56, RES_K(33))
RES(R57, RES_K(33))
RES(R58, RES_K(820))
RES(R59, RES_K(100))
RES(R60, RES_K(10))
RES(R61, RES_K(100))
RES(R62, RES_K(100) * FRND11) // part of SONAR circuit that relies on subtle part differences
RES(R63, RES_K(1.5) * FRND12) // part of SONAR circuit that relies on subtle part differences
RES(R64, RES_K(330) * FRND13) // part of SONAR circuit that relies on subtle part differences
RES(R65, RES_K(10) * FRND14) // part of SONAR circuit that relies on subtle part differences
RES(R66, RES_K(68) * FRND15) // part of SONAR circuit that relies on subtle part differences
RES(R67, RES_K(10))
RES(R68, RES_K(82))
RES(R69, RES_K(470))
RES(R70, RES_K(100))
RES(R71, RES_K(10))
RES(R72, RES_K(10))
RES(R73, RES_K(100))
RES(R74, RES_K(4.7))
RES(R75, RES_K(100))
RES(R76, RES_K(22))
RES(R77, RES_K(330))
RES(R78, RES_K(1))
RES(R79, RES_K(150))
RES(R80, RES_M(1))
RES(R81, RES_K(10))
RES(R82, RES_K(100))
RES(R83, RES_K(1))
RES(R84, RES_K(5.6))
RES(R85, RES_K(150))
RES(R86, RES_K(10))
RES(R87, RES_K(10))
RES(R88, RES_K(100))
RES(R89, RES_K(10))
RES(R90, RES_K(100))
RES(R91, RES_K(100) * FRND16) // part of SONAR circuit that relies on subtle part differences
RES(R92, RES_K(1.5) * FRND17) // part of SONAR circuit that relies on subtle part differences
RES(R93, RES_K(330) * FRND18) // part of SONAR circuit that relies on subtle part differences
RES(R94, RES_K(10) * FRND19) // part of SONAR circuit that relies on subtle part differences
RES(R95, RES_K(68) * FRND20) // part of SONAR circuit that relies on subtle part differences
RES(R96, RES_K(10))
RES(R97, RES_K(4.7))
RES(R98, RES_M(1))
RES(R99, RES_M(1))
RES(R100, RES_M(1))
RES(R101, RES_M(1))
RES(R102, RES_K(470))
RES(R103, RES_M(1))
RES(R104, RES_K(10))
RES(R105, RES_K(10))
RES(R106, RES_M(2.7))
RES(R107, RES_K(100))
RES(R108, RES_K(100))
RES(R109, RES_K(10))
RES(R110, RES_K(10))
RES(R111, RES_K(10))
RES(R112, RES_K(10))
RES(R113, RES_K(10))
RES(R114, 100)
// RES(R115, RES_K(100)) -- part of final amp (not emulated)
// RES(R116, RES_K(470)) -- part of final amp (not emulated)
RES(R117, RES_K(1))
RES(R118, RES_K(470))
RES(R119, RES_K(470))
RES(R120, RES_K(220))
RES(R121, RES_K(10))
RES(R122, RES_K(4.7))
// RES(R123, RES_K(1)) -- part of final amp (not emulated)
// RES(R124, RES_K(100)) -- part of final amp (not emulated)
RES(R125, RES_K(82))
RES(R126, RES_K(39))
RES(R127, RES_K(10))
RES(R128, RES_K(22))
RES(R129, RES_K(10))
RES(R130, RES_K(22))
RES(R131, RES_K(39))
RES(R132, RES_K(82))
RES(R133, RES_K(100))
RES(R134, RES_M(2.7))
// RES(R135, RES_K(22)) -- part of final amp (not emulated)
RES(R136, RES_K(1))
RES(R137, RES_K(4.7))
RES(R138, RES_M(2.2))
RES(R139, RES_K(4.7))
RES(R140, RES_K(4.7))
// RES(R141, RES_K(22))
// RES(R142, RES_M(1)) -- part of final amp (not emulated)
// RES(R143, RES_K(22)) -- part of final amp (not emulated)
// RES(R144, RES_K(22)) -- part of final amp (not emulated)
RES(R145, RES_K(4.7))
RES(R146, RES_K(100))
RES(R147, RES_M(2.2))
RES(R148, RES_K(100))
RES(R149, RES_K(100))
RES(R150, RES_K(33))
RES(R151, RES_M(1))
RES(R152, RES_K(22))
RES(R153, RES_K(47))
RES(R154, RES_K(24))
RES(R155, RES_K(56))
RES(R156, RES_K(39))
RES(R157, RES_K(27))
RES(R158, RES_K(33))
RES(R159, RES_K(62))
RES(R160, RES_K(82))
RES(R161, RES_K(120))
RES(R162, RES_K(4.7))
RES(R163, RES_K(10))
RES(R164, RES_K(10))
RES(R165, RES_M(1))
RES(R166, RES_M(1))
RES(R167, RES_K(1))
RES(R168, RES_M(1))
RES(R169, RES_K(100))
RES(R170, RES_M(2.2))
RES(R171, RES_K(100))
RES(R172, RES_K(33))
RES(R173, RES_K(47))
RES(R174, RES_K(47))
RES(R175, RES_K(47))
RES(R176, RES_K(47))
RES(R177, RES_K(47))
RES(R178, RES_K(22))
RES(R179, RES_K(47))
RES(R180, RES_K(47))
RES(R181, RES_K(47))
RES(R182, RES_K(10))
RES(R183, RES_K(10))
RES(R184, RES_K(4.7))
RES(R185, RES_M(1))
RES(R186, RES_K(1))
CAP(C1, CAP_U(0.01))
CAP(C2, CAP_U(0.01))
CAP(C3, CAP_U(0.1))
CAP(C4, CAP_U(0.05))
CAP(C5, CAP_U(0.1))
CAP(C6, CAP_U(10))
CAP(C7, CAP_U(0.1))
CAP(C8, CAP_U(0.1))
CAP(C9, CAP_U(0.1))
// CAP(C10, CAP_U(0.05))
// CAP(C11, CAP_U(0.05))
CAP(C12, CAP_U(10))
// CAP(C13, CAP_U(0.05))
// CAP(C14, CAP_U(0.05))
CAP(C15, CAP_U(10))
CAP(C16, CAP_U(0.01))
CAP(C17, CAP_U(0.01))
CAP(C18, CAP_U(0.022))
CAP(C19, CAP_U(0.05))
CAP(C20, CAP_U(0.1))
CAP(C21, CAP_U(0.33))
CAP(C22, CAP_U(0.33))
CAP(C23, CAP_U(0.01))
CAP(C24, CAP_U(0.01))
CAP(C25, CAP_U(0.01))
CAP(C26, CAP_U(0.022))
CAP(C27, CAP_U(10))
CAP(C28, CAP_U(0.05))
// CAP(C29, CAP_U(0.05))
// CAP(C30, CAP_U(0.05))
CAP(C31, CAP_U(0.0047))
CAP(C32, CAP_U(0.05))
CAP(C33, CAP_U(10))
CAP(C34, CAP_U(10))
CAP(C35, CAP_U(0.1))
CAP(C36, CAP_U(0.0022))
CAP(C37, CAP_U(0.1))
CAP(C38, CAP_U(0.1))
CAP(C39, CAP_U(0.1))
CAP(C40, CAP_U(0.01))
CAP(C41, CAP_U(0.01))
// CAP(C42, CAP_U(0.001))
// CAP(C43, CAP_U(10))
// CAP(C44, CAP_U(0.001))
// CAP(C45, CAP_U(0.001))
// CAP(C46, CAP_U(10))
CAP(C47, CAP_U(4.7))
// CAP(C48, CAP_U(22)) -- part of final amp (not emulated)
CAP(C49, CAP_U(0.05))
CAP(C50, CAP_U(0.05))
CAP(C51, CAP_U(0.05))
CAP(C52, CAP_U(0.05))
CAP(C53, CAP_U(0.1))
// CAP(C54, CAP_U(0.05))
CAP(C55, CAP_U(0.05))
CAP(C56, CAP_U(10))
CAP(C57, CAP_U(0.1))
// CAP(C58, CAP_U(4.7)) -- part of final amp (not emulated)
CAP(C59, CAP_U(0.33))
CAP(C60, CAP_U(4.7))
CAP(C61, CAP_U(4.7))
CAP(C62, CAP_U(10))
CAP(C63, CAP_U(0.1))
CAP(C64, CAP_U(0.1))
CAP(C65, CAP_U(0.01))
// CAP(C66, CAP_U(0.05))
CAP(C67, CAP_U(0.05))
CAP(C68, CAP_U(0.0047))
CAP(C69, CAP_U(4.7))
CAP(C70, CAP_U(0.1))
CAP(C71, CAP_U(0.022))
CAP(C72, CAP_U(0.05))
// CAP(C73, CAP_U(0.05))
CAP(C74, CAP_U(0.05))
CAP(C75, CAP_U(0.05))
CAP(C76, CAP_U(0.022))
CAP(C77, CAP_U(0.0047))
CAP(C78, CAP_U(0.1))
// CAP(C79, CAP_U(0.05))
CAP(C80, CAP_U(4.7))
CAP(C81, CAP_U(0.05))
CAP(C82, CAP_U(0.1))
D_1N5231(D1)
D_1N914(D2)
D_1N5231(D3)
D_1N5231(D4)
D_1N5231(D5)
D_1N5231(D6)
D_1N914(D7)
D_1N914(D8)
D_1N914(D9)
D_1N5231(D10)
D_1N914(D11)
D_1N914(D12)
// D_1N914(D13) -- part of final amp (not emulated)
D_1N914(D14)
D_1N914(D15)
D_1N914(D16)
D_1N914(D17)
D_1N914(D18)
D_1N914(D19)
D_1N914(D20)
D_1N914(D21)
D_1N914(D22)
D_1N914(D23)
D_1N914(D24)
D_1N914(D25)
D_1N914(D26)
D_1N914(D27)
D_1N914(D28)
D_1N914(D29)
D_1N914(D30)
D_1N914(D31)
Q_2N4403(Q1)
Q_2N4403(Q2)
Q_2N4403(Q3)
//Q_2N4093(Q4) // avoid singular matrix being created
Q_2N4093(Q5)
Q_2N4093(Q6)
Q_2N4403(Q7)
Q_2N4403(Q8)
Q_2N4403(Q9)
Q_2N4403(Q10)
TL084_DIP(U1) // Op. Amp.
NET_C(U1.4, I_V12)
NET_C(U1.11, I_VM12)
TL084_DIP(U2) // Op. Amp.
NET_C(U2.4, I_V12)
NET_C(U2.11, I_VM12)
#if (ENABLE_SONAR_ALT)
// Oscillators are of order 1kHz. No need to to have UGF in MHz range
PARAM(U1.A.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U1.B.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U1.C.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U1.D.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U2.A.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U2.B.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U2.C.MODEL, "TL084(TYPE=3 UGF=10k)")
PARAM(U2.D.MODEL, "TL084(TYPE=3 UGF=10k)")
#endif
CD4017_DIP(U3) // Decade Counter/Divider
NET_C(U3.8, GND)
NET_C(U3.16, I_V12)
NE555_DIP(U4) // Timer
NE555_DIP(U5) // Timer
NE555_DIP(U6) // Timer
TL084_DIP(U7) // Op. Amp.
NET_C(U7.4, I_V12)
NET_C(U7.11, I_VM12)
MM5837_DIP(U8) // Noise Generator
#if (UNDERCLOCK_NOISE_GEN)
// officially runs at 48-112kHz, but little noticeable difference
// in exchange for a big performance boost
PARAM(U8.FREQ, 12000)
#endif
CD4011_DIP(U9) // Quad 2-Input NAND Gates
NET_C(U9.7, GND)
NET_C(U9.14, I_V12)
CD4011_DIP(U10) // Quad 2-Input NAND Gates
NET_C(U10.7, GND)
NET_C(U10.14, I_V12)
CD4011_DIP(U11) // Quad 2-Input NAND Gates
NET_C(U11.7, GND)
NET_C(U11.14, I_V12)
CD4024_DIP(U12) // 7-Stage Ripple Binary Counter
NET_C(U12.7, GND)
NET_C(U12.14, I_V12)
NE555_DIP(U13) // Timer
CD4024_DIP(U14) // 7-Stage Ripple Binary Counter
NET_C(U14.7, GND)
NET_C(U14.14, I_V12)
CD4017_DIP(U15) // Decade Counter/Divider
NET_C(U15.8, GND)
NET_C(U15.16, I_V12)
TL084_DIP(U16) // Op. Amp.
NET_C(U16.4, I_V12)
NET_C(U16.11, I_VM12)
NE555_DIP(U17) // Timer
NE555_DIP(U18) // Timer
CD4024_DIP(U19) // 7-Stage Ripple Binary Counter
NET_C(U19.7, GND)
NET_C(U19.14, I_V12)
NE555_DIP(U20) // Timer
CD4011_DIP(U21) // Quad 2-Input NAND Gates
NET_C(U21.7, GND)
NET_C(U21.14, I_V12)
TL084_DIP(U22) // Op. Amp.
NET_C(U22.4, I_V12)
NET_C(U22.11, I_VM12)
NE555_DIP(U23) // Timer
NE555_DIP(U24) // Timer
CD4011_DIP(U25) // Quad 2-Input NAND Gates
NET_C(U25.7, GND)
NET_C(U25.14, I_V12)
TTL_7407_DIP(U26) // Hex Buffers with High Votage Open-Collector Outputs
NET_C(U26.7, GND)
NET_C(U26.14, I_V5)
CD4011_DIP(U27) // Quad 2-Input NAND Gates
NET_C(U27.7, GND)
NET_C(U27.14, I_V12)
CD4024_DIP(U28) // 7-Stage Ripple Binary Counter
NET_C(U28.7, GND)
NET_C(U28.14, I_V12)
TTL_7407_DIP(U29) // Hex Buffers with High Votage Open-Collector Outputs
NET_C(U29.7, GND)
NET_C(U29.14, I_V5)
TTL_7406_DIP(U30) // Hex inverter -- currently using a clone of 7416, no open collector behavior
NET_C(U30.7, GND)
NET_C(U30.14, I_V5)
TTL_7406_DIP(U31) // Hex inverter -- currently using a clone of 7416, no open collector behavior
NET_C(U31.7, GND)
NET_C(U31.14, I_V5)
// TTL_74LS374_DIP(U32) // Octal D-Type Transparent Latches And Edge-Triggered Flip-Flop
// NET_C(U32.10, GND)
// NET_C(U32.20, I_V5)
// TTL_74LS374_DIP(U33) // Octal D-Type Transparent Latches And Edge-Triggered Flip-Flop
// NET_C(U33.10, GND)
// NET_C(U33.20, I_V5)
// TTL_74LS00_DIP(U34) // Quad 4-Input NAND Gate
// NET_C(U34.7, GND)
// NET_C(U34.14, I_V5)
// TTL_74LS30_DIP(U35) // 8-Input NAND Gate
// NET_C(U35.7, GND)
// NET_C(U35.14, I_V5)
// TTL_74LS04_DIP(U36) // Hex Inverting Gates
// NET_C(U36.7, GND)
// NET_C(U36.14, I_V5)
NE555_DIP(U37) // Timer
NE555_DIP(U38) // Timer
//
// Sheet 7, top-left (SONAR)
//
NET_C(U1.3, GND)
NET_C(U1.2, D1.A, R4.1)
NET_C(U1.1, D1.K, R1.1)
NET_C(R1.2, R2.2, C1.1, C2.1)
NET_C(R2.1, GND)
NET_C(R4.2, R3.2, U1.7, C2.2, R5.2)
NET_C(C1.2, R3.1, U1.6)
NET_C(U1.5, GND)
#if (SIMPLIFY_SONAR)
// sonar has 4 identical circuits; reduce the net size
// by only emulating one and multiplying it by 4
NET_C(U1.9, U1.10, U1.12, U1.13, GND)
NET_C(R36.1, R36.2, R37.1, R37.2, R38.1, R38.2, R39.1, R39.2, R40.1, R40.2, GND)
NET_C(C16.1, C16.2, C17.1, C17.2, GND)
NET_C(D4.A, D4.K, GND)
NET_C(U2.2, U2.3, U2.5, U2.6, GND)
NET_C(R62.1, R62.2, R63.1, R63.2, R64.1, R64.2, R65.1, R65.2, R66.1, R66.2, GND)
NET_C(C24.1, C24.2, C25.1, C25.2, GND)
NET_C(D6.A, D6.K, GND)
NET_C(U2.9, U2.10, U2.12, U2.13, GND)
NET_C(R91.1, R91.2, R92.1, R92.2, R93.1, R93.2, R94.1, R94.2, R95.1, R95.2, GND)
NET_C(C40.1, C40.2, C41.1, C41.2, GND)
NET_C(D10.A, D10.K, GND)
NET_C(R5.1, R114.1, Q3.B)
#else
NET_C(U1.12, GND)
NET_C(U1.13, D4.A, R39.1)
NET_C(U1.14, D4.K, R36.1)
NET_C(R36.2, R37.2, C16.1, C17.1)
NET_C(R37.1, GND)
NET_C(R39.2, R38.2, U1.8, C17.2, R40.2)
NET_C(C16.2, R38.1, U1.9)
NET_C(U1.10, GND)
NET_C(U2.3, GND)
NET_C(U2.2, D6.A, R65.1)
NET_C(U2.1, D6.K, R62.1)
NET_C(R62.2, R63.2, C24.1, C25.1)
NET_C(R63.1, GND)
NET_C(R65.2, R64.2, U2.7, C25.2, R66.2)
NET_C(C24.2, R64.1, U2.6)
NET_C(U2.5, GND)
NET_C(U2.12, GND)
NET_C(U2.13, D10.A, R94.1)
NET_C(U2.14, D10.K, R91.1)
NET_C(R91.2, R92.2, C40.1, C41.1)
NET_C(R92.1, GND)
NET_C(R94.2, R93.2, U2.8, C41.2, R95.2)
NET_C(C40.2, R93.1, U2.9)
NET_C(U2.10, GND)
NET_C(R5.1, R40.1, R114.1, Q3.B, R95.1, R66.1)
#if (ENABLE_SONAR_ALT)
// The oscillators need a small offset voltage to start oscillating.
// Without frontiers I assume the offset voltage is created due to the
// slight differences in resistor values in the four (now connected)
// oscillators.
ANALOG_INPUT(I_VOFF, 0.1)
RES(RDUM1, RES_M(1))
RES(RDUM2, RES_M(1))
RES(RDUM3, RES_M(1))
RES(RDUM4, RES_M(1))
NET_C(R5.2, RDUM1.1)
NET_C(R40.2, RDUM2.1)
NET_C(R95.2, RDUM3.1)
NET_C(R66.2, RDUM4.1)
NET_C(I_VOFF, RDUM1.2, RDUM2.2, RDUM3.2, RDUM4.2)
OPTIMIZE_FRONTIER(R5.2, RES_K(68), 192)
OPTIMIZE_FRONTIER(R40.2, RES_K(68), 192)
OPTIMIZE_FRONTIER(R95.2, RES_K(68), 192)
OPTIMIZE_FRONTIER(R66.2, RES_K(68), 192)
#endif
#endif
NET_C(R114.2, GND)
NET_C(Q3.E, Q2.E, Q1.C)
NET_C(Q1.B, R108.2, C47.2, R117.2)
NET_C(C47.1, R108.1, I_V12)
NET_C(I_V12, R109.1)
NET_C(R109.2, Q1.E)
NET_C(R117.1, D2.A)
NET_C(D2.K, U11.4, C4.2)
NET_C(C4.1, U11.2, R20.1)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_SONAR)
NET_C(D_SONAR.A, U11.2)
NET_C(D_SONAR.K, I_V12)
#endif
NET_C(U11.5, U11.6, U11.3)
NET_C(U11.1, R21.1)
NET_C(I_SONAR, R21.1)
NET_C(R21.2, R20.2, I_V12)
NET_C(Q2.B, GND)
NET_C(Q2.C, R110.2, R111.2, U7.3)
NET_C(R110.1, GND)
NET_C(R111.1, R112.1, I_VM12)
NET_C(Q3.C, U7.2, R112.2, R113.1)
NET_C(R113.2, U7.1)
ALIAS(SONAR, U7.1)
//
// Sheet 7, middle-left (LASER-1)
//
NET_C(I_LASER_1, R146.1, U25.9)
NET_C(U25.8, C64.2, R138.1)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_LASER_1)
NET_C(D_LASER_1.A, U25.8)
NET_C(D_LASER_1.K, I_V12)
#endif
NET_C(R146.2, R138.2, R134.2, R139.2, U24.8, C56.1, I_V12)
NET_C(U25.10, U25.5, U25.6, D11.K, U24.4)
NET_C(C64.1, U25.4, U19.2)
NET_C(D11.A, R107.1, C57.2)
NET_C(C57.1, Q10.C, C65.1, U24.1, GND)
NET_C(R107.2, Q10.B, R134.1)
NET_C(Q10.E, U24.5)
#if (HLE_LASER_1_VCO)
//
// R2 = 0.98461: HP = (0.00000524285*A0) + 0.00000563193
// R2 = 0.99441: HP = (0.000000368659*A0*A0) + (0.00000116694*A0) + 0.0000155514
// R2 = 0.99797: HP = (0.000000154808*A0*A0*A0) - (0.00000213809*A0*A0) + (0.0000138122*A0) - 0.00000398935
// R2 = 0.99877: HP = (-0.0000000527853*A0*A0*A0*A0) + (0.00000128033*A0*A0*A0) - (0.0000107258*A0*A0) + (0.0000413916*A0) - 0.0000352437
// R2 = 0.99943: HP = (0.0000000343262*A0*A0*A0*A0*A0) - (0.00000096054*A0*A0*A0*A0) + (0.0000105481*A0*A0*A0) - (0.0000561978*A0*A0) + (0.000148191*A0) - 0.000131018
//
VARCLOCK(LASER1CLK, 1, "max(0.000001,min(0.1,(0.0000000343262*A0*A0*A0*A0*A0) - (0.00000096054*A0*A0*A0*A0) + (0.0000105481*A0*A0*A0) - (0.0000561978*A0*A0) + (0.000148191*A0) - 0.000131018))")
NET_C(LASER1CLK.GND, GND)
NET_C(LASER1CLK.VCC, I_V12)
NET_C(LASER1CLK.A0, Q10.E)
NET_C(LASER1CLK.Q, LASER1ENV.A1)
AFUNC(LASER1ENV, 2, "if(A0>6,A1,0)")
NET_C(LASER1ENV.A0, U25.10)
NET_C(LASER1ENV.Q, U19.1)
NET_C(U24.3, GND)
NET_C(U24.2, U24.6, R140.1, C65.2, GND)
#else
NET_C(U24.3, U19.1)
NET_C(U24.2, U24.6, R140.1, C65.2)
#endif
NET_C(R140.2, U24.7, R139.1)
NET_C(C56.2, GND)
NET_C(U19.12, R132.1)
NET_C(U19.11, R131.1)
NET_C(U19.9, R130.1)
NET_C(U19.6, R105.1)
NET_C(U19.4, R104.1)
NET_C(R104.2, R105.2, R130.2, R131.2, R132.2, C52.1)
ALIAS(LASER_1, C52.2)
//
// Sheet 7, bottom-left (LASER-2)
//
NET_C(I_LASER_2, R149.1, U25.12)
NET_C(U25.13, C63.2, R147.1)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_LASER_2)
NET_C(D_LASER_2.A, U25.13)
NET_C(D_LASER_2.K, I_V12)
#endif
NET_C(R149.2, R147.2, R106.2, R145.2, U20.8, C62.1, I_V12)
NET_C(U25.11, U25.1, U25.2, D12.K, U20.4)
NET_C(C63.1, U25.3, U14.2)
NET_C(D12.A, R133.1, C53.2)
NET_C(C53.1, Q9.C, C68.1, U20.1, GND)
NET_C(R133.2, Q9.B, R106.1)
NET_C(Q9.E, U20.5)
#if (HLE_LASER_2_VCO)
//
// R2 = 0.98942: HP = (0.00000251528*A0) + 0.00000244265
// R2 = 0.99596: HP = (0.000000160852*A0*A0) + (0.000000694298*A0) + 0.00000690896
// R2 = 0.99821: HP = (0.000000068284*A0*A0*A0) - (0.000000949931*A0*A0) + (0.00000630369*A0) - 0.00000175548
// R2 = 0.99896: HP = (-0.0000000291178*A0*A0*A0*A0) + (0.000000689145*A0*A0*A0) - (0.00000568073*A0*A0) + (0.0000214603*A0) - 0.0000188875
// R2 = 0.99937: HP = (0.0000000153499*A0*A0*A0*A0*A0) - (0.000000433800*A0*A0*A0*A0) + (0.00000480504*A0*A0*A0) - (0.0000257871*A0*A0) + (0.000068467*A0) - 0.0000608574
//
VARCLOCK(LASER2CLK, 1, "max(0.000001,min(0.1,(0.0000000153499*A0*A0*A0*A0*A0) - (0.000000433800*A0*A0*A0*A0) + (0.00000480504*A0*A0*A0) - (0.0000257871*A0*A0) + (0.000068467*A0) - 0.0000608574))")
NET_C(LASER2CLK.GND, GND)
NET_C(LASER2CLK.VCC, I_V12)
NET_C(LASER2CLK.A0, Q9.E)
NET_C(LASER2CLK.Q, LASER2ENV.A1)
AFUNC(LASER2ENV, 2, "if(A0>6,A1,0)")
NET_C(LASER2ENV.A0, U25.11)
NET_C(LASER2ENV.Q, U14.1)
NET_C(U20.3, GND)
NET_C(U20.2, U20.6, R137.1, C68.2, GND)
#else
NET_C(U20.3, U14.1)
NET_C(U20.2, U20.6, R137.1, C68.2)
#endif
NET_C(R137.2, U20.7, R145.1)
NET_C(C62.2, GND)
NET_C(U14.12, R125.1)
NET_C(U14.11, R126.1)
NET_C(U14.9, R128.1)
NET_C(U14.6, R129.1)
NET_C(U14.4, R127.1)
NET_C(R127.2, R129.2, R128.2, R126.2, R125.2, C51.1)
ALIAS(LASER_2, C51.2)
//
// Sheet 7, middle-top (REFILL)
//
NET_C(I_REFILL, U3.15, R59.1)
NET_C(R59.2, I_V12, R17.2)
// CD4011 oscillator: R18=2.7M, C3=0.1u, freq=2.664
CLOCK(OSC1, 2.664)
NET_C(OSC1.GND, GND)
NET_C(OSC1.VCC, I_V12)
NET_C(OSC1.Q, U3.14)
NET_C(R18.1, R18.2, C3.1, C3.2, U9.1, U9.2, U9.5, U9.6, GND)
NET_C(U3.3, R8.1)
NET_C(U3.2, R7.1)
NET_C(U3.4, R9.1)
NET_C(U3.7, R12.1)
NET_C(U3.10, R14.1)
NET_C(U3.1, R6.1)
NET_C(U3.5, R10.1)
NET_C(U3.6, R11.1)
NET_C(U3.9, R15.1)
NET_C(U3.11, R13.1)
NET_C(U3.13, GND)
NET_C(R17.1, R8.2, R7.2, R9.2, R12.2, R14.2, R6.2, R10.2, R11.2, R15.2, R13.2, R16.2)
NET_C(R16.1, Q7.B)
// CD4011 oscillator: R46=470k, C20=0.1u, freq=15.307
CLOCK(OSC2, 15.307)
NET_C(OSC2.GND, GND)
NET_C(OSC2.VCC, I_V12)
NET_C(OSC2.Q, U4.4, U9.12, U9.13)
NET_C(U9.11, U5.4)
NET_C(R46.1, R46.2, C20.1, C20.2, U9.8, U9.9, GND)
NET_C(U5.7, R67.1, R68.2)
NET_C(R68.1, U5.2, U5.6, C26.2)
NET_C(C26.1, GND, U5.1, C18.1, U4.1, Q7.C)
NET_C(U5.5, U4.5, Q7.E)
NET_C(R67.2, U5.8, R41.2, U4.8, I_V12)
NET_C(R41.1, R42.2, U4.7)
NET_C(R42.1, U4.2, U4.6, C18.2)
NET_C(U5.3, R69.2)
NET_C(U4.3, R43.2)
NET_C(R43.1, C49.1, R69.1, I_REFILL_Q)
ALIAS(REFILL, C49.2)
//
// Sheet 7, middle-bottom (ATTACK, RATE RESET)
//
NET_C(I_RATE_RESET, U15.15, R96.1)
NET_C(R96.2, I_V12)
NET_C(I_ATTACK_RATE, R148.1, U21.5)
NET_C(R148.2, R166.2, I_V12)
NET_C(U21.6, R166.1, C67.2)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_ATTACK_RATE)
NET_C(D_ATTACK_RATE.A, U21.6)
NET_C(D_ATTACK_RATE.K, I_V12)
#endif
NET_C(C67.1, U21.3)
NET_C(U21.4, U21.1, U21.2, U15.14)
NET_C(U15.3, D23.A)
NET_C(D23.K, R161.1)
NET_C(U15.2, D22.A)
NET_C(D22.K, R160.1)
NET_C(U15.4, D21.A)
NET_C(D21.K, R159.1)
NET_C(U15.7, D17.A)
NET_C(D17.K, R155.1)
NET_C(U15.10, D15.A)
NET_C(D15.K, R153.1)
NET_C(U15.1, D18.A)
NET_C(D18.K, R156.1)
NET_C(U15.5, D20.A)
NET_C(D20.K, R158.1)
NET_C(U15.6, D19.A)
NET_C(D19.K, R157.1)
NET_C(U15.9, D16.A)
NET_C(D16.K, R154.1)
NET_C(U15.11, D14.A)
NET_C(D14.K, R152.1)
NET_C(U15.13, GND)
NET_C(R161.2, R160.2, R159.2, R155.2, R153.2, R156.2, R158.2, R157.2, R154.2, R152.2, R178.2, U16.6)
NET_C(I_WARP, R164.1)
NET_C(R164.2, R162.1, R163.2, U16.5)
NET_C(R162.2, I_V12)
NET_C(R163.1, GND)
NET_C(U16.7, R178.1)
ALIAS(V, U16.7)
//
// Sheet 7, top-right (EXPLOSIONS)
//
NET_C(I_SHORT_EXPL, R169.1, U27.2)
NET_C(R169.2, R185.2, I_V12)
NET_C(U27.1, R185.1, C81.2)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_SHORT_EXPL)
NET_C(D_SHORT_EXPL.A, U27.1)
NET_C(D_SHORT_EXPL.K, I_V12)
#endif
NET_C(C81.1, U27.11)
NET_C(U27.13, U27.12, U27.3)
NET_C(U27.3, R184.1)
NET_C(R184.2, D31.A)
NET_C(D31.K, D30.A, R182.2, R183.2)
NET_C(R182.1, GND)
NET_C(D30.K, R180.1, R181.1, C80.1, D29.K)
NET_C(C80.2, GND)
NET_C(R180.2, U16.9, R179.1)
NET_C(R179.2, U16.8, R177.1)
NET_C(R181.2, U16.10, Q6.D, D26.K) // D and S swapped on schematics???
NET_C(Q6.G, C72.2, R151.2, Q5.G)
NET_C(R151.1, GND)
NET_C(C72.1, U8.3)
NET_C(U8.4, I_V12)
NET_C(U8.2, I_VM12)
NET_C(U8.1, GND)
NET_C(Q6.S, D26.A, GND)
NET_C(D29.A, D24.K, C69.1)
NET_C(C69.2, GND)
NET_C(R183.1, R186.2, U27.4, U27.8, U27.9, D28.K)
NET_C(R186.1, C75.1)
NET_C(C75.2, U21.8, U21.9, R168.2)
NET_C(R168.1, U21.11)
NET_C(I_LONG_EXPL, R171.1, U27.6)
NET_C(R171.2, R170.2, I_V12)
NET_C(R170.1, U27.5, C82.2)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_LONG_EXPL)
NET_C(D_LONG_EXPL.A, U27.5)
NET_C(D_LONG_EXPL.K, I_V12)
#endif
NET_C(C82.1, U27.10)
NET_C(U21.12, U21.13, C74.1, R165.2)
NET_C(U21.10, C74.2, R167.1)
NET_C(R165.1, GND)
NET_C(R167.2, D24.A)
NET_C(R177.2, R176.1, C78.1)
NET_C(C78.2, U16.2, U16.1, C61.1)
NET_C(R176.2, U16.3, C77.2, C76.2)
ALIAS(EXPLOSIONS, C61.2)
NET_C(C77.1, GND)
NET_C(C76.1, D27.K, D28.A)
NET_C(D27.A, GND)
//
// Sheet 7, middle-right (ASTROIDS)
//
NET_C(I_ASTROIDS, R97.1, R174.1, R175.1)
NET_C(R97.2, I_V12)
NET_C(R174.2, U16.13, R173.1)
NET_C(R175.2, U16.12, Q5.D, D25.K) // D and S swapped on schematics???
NET_C(D25.A, Q5.S, GND)
NET_C(R173.2, U16.14, R172.1)
NET_C(R172.2, R150.1, C70.1)
NET_C(C70.2, U7.9, U7.8, R136.1)
NET_C(R150.2, C71.2, U7.10)
NET_C(C71.1, GND)
NET_C(R136.2, C59.2, C60.1)
NET_C(C59.1, GND)
ALIAS(ASTROIDS, C60.2)
//
// Sheet 7, bottom-right (mixer)
//
ALIAS(INVADER_1, R98.1)
ALIAS(INVADER_2, R99.1)
ALIAS(INVADER_3, R100.1)
ALIAS(INVADER_4, R101.1)
NET_C(R98.2, R99.2, R100.2, R101.2, C55.1)
NET_C(ASTROIDS, R121.1)
NET_C(EXPLOSIONS, R122.1)
ALIAS(BONUS, R118.1)
NET_C(REFILL, R119.1)
NET_C(LASER_1, R102.1)
NET_C(LASER_2, R103.1)
NET_C(SONAR, R120.1)
NET_C(C55.2, R121.2, R122.2, R118.2, R119.2, R102.2, R103.2, R120.2)
AFUNC(MUTEFUNC, 2, "if(A0>2.5,0,A1)")
NET_C(MUTEFUNC.A0, I_MUTE)
NET_C(MUTEFUNC.A1, R121.2)
ALIAS(OUTPUT, MUTEFUNC.Q)
// ALIAS(OUTPUT, C55.2)
//
// Sheet 8, middle-top (INVADER_1)
//
NET_C(U22.10, GND)
NET_C(U22.9, D5.A, R29.1)
NET_C(R29.2, R55.2, U22.14, C21.2, R72.1)
NET_C(D5.K, U22.8, R58.1)
NET_C(R58.2, C22.1, R57.2, R56.2, C21.1)
NET_C(W, U30.5)
NET_C(U30.6, R57.1)
NET_C(R56.1, GND)
NET_C(U22.13, C22.2, R55.1)
NET_C(U22.12, GND)
NET_C(R85.1, U23.7, R86.2)
NET_C(R85.2, U23.8, R83.2, R84.2, R73.2, U18.8, I_V12)
NET_C(R86.1, U23.2, U23.6, C38.2)
NET_C(C38.1, U23.1, C37.1, C28.1, U18.1, GND)
NET_C(I_INVADER_1, U23.4, R73.1, U18.4)
NET_C(C28.2, U18.5)
NET_C(U23.3, U18.2)
NET_C(U23.5, R87.2)
NET_C(R87.1, V)
NET_C(R83.1, D9.A)
NET_C(D9.K, Q8.B, R72.2)
NET_C(Q8.E, R84.1)
NET_C(Q8.C, C37.2, U18.6, U18.7)
NET_C(U18.3, INVADER_1)
//
// Sheet 8, middle (INVADER_2)
//
NET_C(R81.2, R70.2, U13.8, C27.1, I_V12)
NET_C(C27.2, GND)
NET_C(R81.1, R82.2, U13.7)
NET_C(R82.1, U13.2, U13.6, C36.2)
NET_C(C36.1, U13.1, GND)
NET_C(U13.5, R71.2)
NET_C(R71.1, V)
NET_C(I_INVADER_2, U13.4, R70.1)
NET_C(U13.3, U12.1)
// CD4011 oscillator: R22=470k, C5=0.1u, freq=15.3Hz
CLOCK(OSC3, 15.3)
NET_C(OSC3.GND, GND)
NET_C(OSC3.VCC, I_V12)
NET_C(OSC3.Q, U12.2)
NET_C(R22.1, R22.2, C5.1, C5.2, U11.8, U11.9, U11.12, U11.13, GND)
NET_C(U12.12, R48.1)
NET_C(U12.11, R49.1)
NET_C(U12.9, R50.1)
NET_C(U12.6, R47.1)
NET_C(R47.2, R50.2, R49.2, R48.2)
NET_C(R48.2, INVADER_2)
//
// Sheet 8, middle-bottom (INVADER_4)
//
NET_C(R89.2, U37.4, U37.8, C15.1, R60.2, R88.2, U38.8, I_V12)
NET_C(R89.1, U37.7, R90.2)
NET_C(R90.1, U37.2, U37.6, C39.2)
NET_C(C39.1, U37.1, C23.1, U38.1, GND)
NET_C(U37.5, R35.1)
NET_C(R35.2, V, R34.1)
NET_C(C15.2, GND)
NET_C(U37.3, U28.1)
NET_C(U28.2, U28.5)
NET_C(U28.12, R31.1)
NET_C(U28.11, R32.1)
NET_C(U28.9, R33.1)
NET_C(U28.6, R30.1)
NET_C(R31.2, R32.2, R33.2, R30.2, R34.2, U38.5)
NET_C(U38.2, U38.6, C23.2, R61.1)
NET_C(R61.2, U38.7, R60.1)
NET_C(U38.4, R88.1, I_INVADER_4)
NET_C(INVADER_4, U38.3)
//
// Sheet 8, middle-bottom (BONUS)
//
NET_C(I_BONUS, R45.1, U10.6)
NET_C(C34.1, R77.2, I_V12)
NET_C(R45.2, R44.2, R74.2, U6.4, U6.8, C33.1, I_V12)
NET_C(R44.1, U10.5, C19.1)
#if (ADD_CLIPPING_DIODES)
// fast retriggering relies on clipping diodes which
// aren't implemented by default for speed
D_1N914(D_BONUS)
NET_C(D_BONUS.A, U10.5)
NET_C(D_BONUS.K, I_V12)
#endif
NET_C(U10.4, U10.1, U10.2)
NET_C(C19.2, U10.3, D7.K)
NET_C(D7.A, R78.1)
NET_C(R78.2, R77.1, C34.2, R76.1)
// CD4011 oscillator: R80=1M, C35=0.1, freq=7.19Hz
CLOCK(OSC4, 7.19)
NET_C(OSC4.GND, GND)
NET_C(OSC4.VCC, I_V12)
NET_C(OSC4.Q, R79.1)
NET_C(R80.1, R80.2, C35.1, C35.2, U10.8, U10.9, U10.12, U10.13, GND)
NET_C(R79.2, R74.1, R75.2, U6.7)
NET_C(R75.1, U6.2, U6.6, C31.2)
NET_C(C31.1, C32.1, U6.1, GND)
NET_C(C32.2, U6.5)
NET_C(R76.2, D8.K, C50.1)
NET_C(U6.3, D8.A)
NET_C(C33.2, GND)
NET_C(BONUS, C50.2)
//
// Sheet 8, top-right (INVADER_3)
//
NET_C(U22.5, GND)
NET_C(U22.6, D3.A, R25.1)
NET_C(R25.2, C12.2, R24.2, U22.1, C8.2)
NET_C(D3.K, U22.7, R26.1)
NET_C(W, U30.9)
NET_C(U30.8, R28.1)
NET_C(R28.2, R26.2, C9.1, R27.2, C8.1)
NET_C(R27.1, GND)
NET_C(C9.2, U22.2, R24.1)
NET_C(U22.3, GND)
NET_C(C12.1, R54.1)
NET_C(R54.2, R53.1, U17.5)
NET_C(R53.2, V)
NET_C(U17.1, C7.1, GND)
NET_C(C7.2, U17.2, U17.6, R52.1)
NET_C(R52.2, U17.7, R51.1)
NET_C(R51.2, R23.2, U17.8, C6.1, I_V12)
NET_C(R23.1, U17.4, I_INVADER_3)
NET_C(C6.2, GND)
NET_C(INVADER_3, U17.3)
//
// Unconnected inputs
//
NET_C(GND, U7.5, U7.6, U7.12, U7.13)
NET_C(GND, U26.13)
NET_C(GND, U29.1, U29.3, U29.13)
NET_C(GND, U30.1, U30.11)
//
// Unconnected outputs
//
#if (ENABLE_FRONTIERS)
#define RXX 192
OPTIMIZE_FRONTIER(INVADER_1, RES_M(1), RXX)
OPTIMIZE_FRONTIER(INVADER_2, RES_M(1), RXX)
OPTIMIZE_FRONTIER(INVADER_3, RES_M(1), RXX)
OPTIMIZE_FRONTIER(INVADER_4, RES_M(1), RXX)
OPTIMIZE_FRONTIER(C50.1, RES_M(10), RXX)
OPTIMIZE_FRONTIER(C60.1, RES_M(10), RXX) // this is a big one
OPTIMIZE_FRONTIER(C61.1, RES_M(10), RXX)
#endif
NETLIST_END()