Puvodni tabulka:
   0 1 2 3 4 5 6 7 8 9 a b c d e f
0 06060707070706070606070707070607
1 06060707070706070606070707070607
2 06060407070706070606020707070607
3 06060707070706070606070707070607
4 06060406070606060606020607060606
5 06060406070606060606020607060606
6 06060406070606060606020607060606
7 06060406070606060606020607060606
8 06060407070706070606020707070607
9 06060707070706070606070707070607
a 06060707070706070606070707070607
b 06060707070706070606070707070607
c 06060406060606060606020606060606
d 06060406060606060606020606060606
e 06060406060606060606020606060606
f 06060406060606060606020606060606

A8 je tvale LOW tak tabulku na pulku a pro prehlednost zrusim 0
   0 1 2 3 4 5 6 7 8 9 a b c d e f
0  6 6 7 7 7 7 6 7 6 6 7 7 7 7 6 7
1  6 6 7 7 7 7 6 7 6 6 7 7 7 7 6 7
2  6 6 4 7 7 7 6 7 6 6 2 7 7 7 6 7
3  6 6 7 7 7 7 6 7 6 6 7 7 7 7 6 7
4  6 6 4 6 7 6 6 6 6 6 2 6 7 6 6 6
5  6 6 4 6 7 6 6 6 6 6 2 6 7 6 6 6
6  6 6 4 6 7 6 6 6 6 6 2 6 7 6 6 6
7  6 6 4 6 7 6 6 6 6 6 2 6 7 6 6 6

A4 je signal A12 urcuje ktera polovina pameti EPROM je aktivni - muzeme zase odstranit pulku tabulky
   0 1 2 3 4 5 6 7
0  6 6 7 7 7 7 6 7
1  6 6 7 7 7 7 6 7
2  6 6 4 7 7 7 6 7
3  6 6 7 7 7 7 6 7
4  6 6 4 6 7 6 6 6
5  6 6 4 6 7 6 6 6
6  6 6 4 6 7 6 6 6
7  6 6 4 6 7 6 6 6

Pro prehlednost zmenim obsah tabulky na
x - 6 - /CSromx=1, CAS=0 nic neni aktivni
r - 7 - /CSromx=1, CAS=1 aktivni ram
e - 4 - /CSromx=0, CAS=0 aktivni rom
a muzeme uz zlepsit popisky podle signalu adresace

            cpu read (A3)= 0 0 0 0 1 1 1 1
           cpu write (A2)= 0 0 1 1 0 0 1 1
               video (A1)= 0 1 0 1 0 1 0 1
                           ---------------
a13*a14*a15=0 pc4=0 pc5=0  x x r r r r x r
a13*a14*a15=1 pc4=0 pc5=0  x x r r r r x r
a13*a14*a15=0 pc4=1 pc5=0  x x e r r r x r
a13*a14*a15=1 pc4=1 pc5=0  x x r r r r x r
a13*a14*a15=0 pc4=0 pc5=1  x x e x r x x x
a13*a14*a15=1 pc4=0 pc5=1  x x e x r x x x
a13*a14*a15=0 pc4=0 pc5=1  x x e x r x x x
a13*a14*a15=1 pc4=0 pc5=1  x x e x r x x x

No a tady je uz videt ze pro pc5=1 a video=1 neni aktivni ram