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This is the computer`s bus signals pinout. The connector is 40 + 3 goldpin female.

40 +3.3V
39 A0
38 A1
37 A2
36 A3
35 A4
34 A5
33 A6
32 A7
31 A8
30 A9
29 A10
28 A11
27 A12
26 A13
25 A14
24 A15
23 CLK
22 D4
21 D3
20 D5
19 D6
18 +5V
17 D2
16 D7
15 D0
14 D1
13 /INT
12 /NMI
11 /HALT
10 /MREQ
9 /IOREQ
8 /RD
7 /WR
6 /BUSACK
5 /WAIT
4 /BUSRQ
3 /RESET
2 /M1
1 GND
3 /IOREQ+NAND(A8-A15)
2 /NAND(A8-A15)
1 NAND(A8-A15)
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