[MAME]

This is a simple 'Pairs' game called
Carrera by BS Electronics



PCB Layout
----------

|----------------------------------------------|
|            22.1184MHz  Z80                   |
|                                     ROM.IC1  |
|_  BATTERY              ROM.IC22              |
  |                                            |
 _|                      6116         ROM.IC2  |
|                                              |
|                                              |
|J  AY-3-8910                         ROM.IC3  |
|A                       DSW1(8)               |
|M                                             |
|M                       DSW2(8)      ROM.IC4  |
|A                                             |
|                        DSW3(8)               |
|                                     ROM.IC5  |
|_  PROM.IC39            DSW4(8)               |
  |                                    6116    |
 _|                                            |
|                   HD6845             6116    |
|----------------------------------------------|
Notes:
      Z80 @ 3.6864MHz [22.1184/6]
      AY-3-8910 @ 1.8432MHz [22.1184/12]


Emulation Notes:
 Corrupt Tile on the first R in Carrera? (unlikely to be a bug, HW is very simple..)
 There is also a 'Bomberman' title in the GFX roms, unused from what I can see.

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