ic99 yellow spot (sheet 2)

+------ E, 14, ic119-8,13 registered RAM enable
|+----- D, 13, ic85-12    PC
||+---- C, 12, ic85-13    PB
|||+--- B, 11, ic85-14    PA
||||+-- A, 10, ic76-10
|||||
|||||  +--------- D8, 9, ic110-18 unlatched *S8 
|||||  |+-------- D7, 7, ic110-13 
|||||  ||+------- D6, 6, ic110-14 
|||||  |||+------ D5, 5, ic110-17 
|||||  ||||+----- D4, 4, ic110-3  
|||||  |||||+---- D3, 3, ic110-4  unlatched P0 
|||||  ||||||+--- D2, 2, ic110-7  unlatched P3 
|||||  |||||||+-- D1, 1, ic110-8  unlatched P1
|||||  ||||||||
00000: 11010001 
00001: 00010001 
00010: 11100100 
00011: 00000100 
00100: 11100000 
00101: 00000000 
00110: 11110010 
00111: 01010010 
01000: 01010000 
01001: 01010000 
01010: 01100000 
01011: 01100000 
01100: 01100000 
01101: 01100000 
01110: 11111000 
01111: 01111000 
10000: 11010001 
10001: 00010001 
10010: 11100100 
10011: 00000100 
10100: 11100000 
10101: 00000000 
10110: 11110010 
10111: 01010010 
11000: 01010000 
11001: 01010000 
11010: 01100000 
11011: 01100000 
11100: 01100000 
11101: 01100000 
11110: 11110000 
11111: 01110000 
