NES Game Genie IC pinout

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                                 .----\/----.
                                 |          |
                    CC PRG /CE - |01      48| - CHR /A13 on NES
                 Genie ROM /CE - |02      47| - CHR /A13 on CC
                   NES PRG /CE - |03      46| - CHR /RD
                       PRG R/W - |04      45| - CHR  A2
                       PRG  A0 - |05      44| - CHR  A4
                       PRG  A1 - |06      43| - CHR  A5
                       PRG  A2 - |07      42| - CHR  A6
                       PRG  A3 - |08      41| - CHR  A7
                       PRG  A4 - |09      40| - PRG  D0
                       PRG  A5 - |10      39| - PRG  D1
                       PRG  A6 - |11      38| - PRG  D2
                           GND - |12      37| - PRG  D3
                       PRG  A7 - |13      36| - +5V
                       PRG  A8 - |14      35| - PRG  D4
                       PRG  A9 - |15      34| - PRG  D5
                       PRG A10 - |16      33| - PRG  D6
                       PRG A11 - |17      32| - PRG  D7
                       PRG A12 - |18      31| - CHR  D7
                       PRG A13 - |19      30| - NC
                       PRG A14 - |20      29| - CHR  D6
                        /RESET - |21      28| - CHR  D5
                            NC - |22      27| - CHR  D4
                       CHR  D0 - |23      26| - CHR  D3
                       CHR  D1 - |24      25| - CHR  D2    
                                 |          |
                                 `----------'
                                   'Galoob'

Pins 31-35 and 37-40 are connected to the PRG Dx lines via 200 ohm resistors. Their function is to prevent a bus conflict.