[Jul/13/98]

        JUMP BUG    CHIP PLACEMENT

USES Z80 CPU W/AY-3-8910 SOUND

CHIP #  POSITION   TYPE
------------------------
6253-C   8D        2732
6252-B   8C         "
6251-A   8A         "
6254-D   8F         "
6255-E   8H         "
6256-F   8K         "
6257-G   8L         "
6259-I   1J        2716
6260-J   1L         "
6261-K   1M         "
6262-L   1P         "
6263-M   1R         "
6264-N   1T         "
6331-1   11R



[Mar/18/97]
                              JUMP BUG
                              --------

These roms are from my jump bug board. The board has the reference
'JB 003F' on the PCB and does not appear to be original. However, the
game comes up with the correct (C) of Rock-ola 1981 ( note that the
game was written by 'HOEI' and licensed to Rock-ola ).

None of the ROMS appear to carry any readable text so could be encrypted.
The code roms are marked '1' - '7' with the graphics 'I' - 'N'.

There is a chip marked 'T00' which could be a memory chip - but the markings
have been removed.

The processor is a Z80 with an AY-3-8910 sound chip.

The board shows similarities to galaxian - with the scrolling stars and
scramble with scrolling.

-