6809
	Straight-through
		1-3
		5-19
		24-40

	Straight-through, with another connection
		6	BA
		7	Vcc
		28	D3
		29	D2
		30	D1
		31	D0
		37	/RESET

    Not connected between 6809 socket & relocated 6809
		4	/FIRQ
		20	A12
		21	A13
		22	A14
		23	A15

74LS257
	1	SELECT		74LS02 pin 13 4Y
	2 	INPUT A1	-> onboard 6809 pin 20 A12
					-> 74LS157 pin 3 1B
    3   INPUT B1    tied to Vcc
    4   OUTPUT Y1   -> SuperPET 6809 socket pin 20 A12
	5   INPUT A2	-> onboard 6809 pin 22 A14
					-> 74LS157 pin 6 2B
    6   INPUT B2	tied to GND
	7	OUTPUT Y2	-> SuperPET 6809 socket pin 22 A14
	8	GND			tied to GND
					-> Same chip pin 10 INPUT B3
	9   OUTPUT Y3   -> SuperPET 6809 socket pin 21 A13
	10  INPUT B3	tied to GND
	11  INPUT A3	-> onboard 6809 pin 21 A13
					-> 74LS157 pin 10 3B
	12  OUTPUT Y4   -> SuperPET 6809 socket pin 23 A15
	13  INPUT B4	tied to Vcc
	14  INPUT A4	-> onboard 6809 pin 23 A15
	15  OUTPUT CTL  -> onboard 6809 pin 6 BA
					-> SuperPET 6809 socket pin 6 BA

74LS157
	1	*A/B	74LS02 pin 13 4Y		
	2	1A		onboard 74LS273 pin 2
	3	1B		-> 74LS257 pin 2 INPUT A1
				-> onboard 6809 pin 20 A12
	4	1Y		Socket to SuperPET 74LS273 pin 19
	5	2A		onboard 74LS273 pin 6
	6	2B		-> 75LS257 pin 5 INPUT A2
				-> onboard 6809 pin 22 A14
	7	2Y		Socket to SuperPET 74LS273 pin 15
	8	GND		tied to Vss
	9	3Y		Socket to SuperPET 74LS273 pin 16
	10	3B		-> 74LS257 pin 11 INPUT A3
				-> onboard 6809 pin 21 A13
	11	3A		onboard 74LS273 pin 5
	12	4Y		Socket to SuperPET 74LS273 pin 12
	13	4B		-> 74ls257 pin 14
				-> onboard 6809 pin 23
	14	4A		onboard 74ls273 pin 9
	15	*G		-> 6809 pin 1 Vss
				-> 74ls04 pin 3 2A
	16	Vcc
	
	

74LS02
	1	1Y		-> onboard 74LS273 pin 1
	2	1A		-> 74LS04 pin 3 2A
	3	1B		-> 74LS04 pin 9 4A
				-> Same chip pin 4 2Y
	4	2Y		-> Same chip pin 3 1B
	5   2A		-> Onboard 74LS237 pin 15
 	6	2B		-> 74LS04 pin 6 3Y
	7	GND		tied to Vss
	8	3A		-> onboard 6809 pin 5 BS
				-> SuperPET 6809 socket pin 5 BS
	9	3B		-> 74LS04 pin 10 5Y
	10	3Y		-> 74LS04 pin 5 3A
	11  4A		-> 74LS04 pin 2 1Y
	12  4B		-> 74LS04 pin 11 5A
	13  4Y		-> 74LS257 pin 1 SELECT
				-> 74LS157 pin 1
	14  Vcc		-> tied to Vcc


74LS04
	1   1A		onboard 74LS273 pin 16 7Q
	2   1Y		74LS02 pin 11 4A
	3   2A		-> 6809 pin 1 Vss
	            -> 74LS157 pin 15 /G
				-> Same chip pin 7 Vss
	4   2Y		NC
	5   3A		-> 74LS02 pin 10
	6   3Y		-> 74LS02 pin 6
	7   GND		tied to GND
	8   4Y		-> onboard 6809 pin 4 /FIRQ, broken by J1
	9   4A		-> 74LS02 pin 3 1B
	10  5Y		-> 74LS02 pin 9
	11  5A		-> onboard 6809 pin 6 BA
				-> SuperPET 6809 socket pin 6 BA
				-> 74LS02 pin 12 4B
	12  6Y		-> 74LS02 pin 2 1A
	13  6A		-> onboard 6809 pin 37 /RESET
				-> SuperPET 6809 socket pin 37 /RESET
	14  Vcc		tied to Vcc


Onboard 74LS273
	1	/CLR			74LS02 pin 1 1Y
	2	1Q		BANK0	74LS157 pin 2 1A
	3	1D		D0 IN	Onboard 6809 pin 31 D0
	4	2D		D1 IN	Onboard 6809 pin 30 D1
	5	2Q		BANK1	74LS157 pin 11 3A
	6	3Q		BANK2	74LS157 pin 5 2A
	7	3D		D2 IN	Onboard 6809 pin 29 D2
	8	4D		D3 IN	Onboard 6809 pin 28 D3
	9	4Q		BANK3	74LS157 pin 14 4A
	10	GND				tied to Vss
	11	CLK				-> wiper pin of jumper j2
							one side of j2:   TODO extra row for non-combo
							other side of j2: Socket to SuperPET 74LS273 pin 11
	12	5Q		IRQDIS	NC
	13	5D		D4 IN	Onboard 6809 pin 27 D4
	14	6D		D5 IN	Onboard 6809 pin 26 D5
	15	6Q		SYNCDIS	74LS02 pin 5 2A 
	16	7Q		FIRQDIS	74LS04 pin 1 1A
	17	7D		D6 IN	Onboard 6809 pin 25 D6
	18	8D		D7 IN	Socket to SuperPET 6809 pin 24 D7
	19	8Q		RAMWP	Socket to SuperPET 74LS273 pin 2
	20	Vcc				tied to Vcc