[Feb/08/2001]

Prebillian
(c)1986 Kaneko/Taito
M6100211A (same board as VS. Hot Smash)
G20 00578A (Service Instructions)
G20 00577A (Board adjustment manual)
G30 00410A (Instruction card #1)
G30 00411A (Instruction card #2)

CPU  : Z80B
Sound: AY-3-8910A
OSC  : 12.000MHz

ROMs:
4.1n - Graphics (27256)
5.1r |
6.1t /

1.6c - Main program (27256)
2.6d - Main program (27128)

3.7j - Data?
7.7k - MCU (68705P5, not dumped)


Dumped 08/Feb/2001


[Feb/08/2001]

         DIPSW-1                       1   2    3    4    5   6   7    8
                          1cn/1cr     off off  off
                          2cn/1cr     on  off  off
                          3cn/1cr     off  on  off
         Coinage 1        4cn/1cr     on   on  off
                          5cn/1cr     off off   on
                          1cn/2cr     on  off   on
                          1cn/3cr     off  on   on
                          2cn/3cr     on   on   on
                          1cn/1cr                   off  off off
                          2cn/1cr                    on  off off
                          3cn/1cr                   off  on  off
         Coinage 2        4cn/1cr                    on  on  off
                          5cn/1cr                   off  off on
                          1cn/2cr                    on  off on
                          1cn/3cr                   off  on  on
                          2cn/3cr                    on  on  on
         Continue           No                                   off
                            Yes                                   on
         Freeze             No                                        off
         screen           Freeze                                      on

         DIPSW-2                       1   2    3    4    5   6   7    8
                             2        off off
         Number of           3        on  off
         balls               4        off  on
                             5        on   on
                      100K/200K/300K           off  off
         Extend       200K/300K/400K            on  off
                      300K/400K/500K           off   on
                      100K/300K/500K            on   on
                         Very hard                       off off
         Difficulty        Hard                          on  off
                          Normal                         off on
                           Easy                          on  on
         Cabinet         Cocktail                                off
                          Upright                                 on
         Flip screen      Normal                                      off
                          Flipped                                     on



[UNMAMED]

The object of this pool game was to get a red target ball into one of
the open pockets (not all of them opened to start) within some PAR
score. If you failed to par the table (or you scratched), you lost
a life. Other balls and blocks made it more of a challenge. It was
a joystick-controlled game.

-
Hitting certain power-up blocks provided a variety of beneficial effects.
One turned your ball into a high-speed rotating turret. The screen would go black,
and for a little while, you could spin and shoot at the balls. Furthermore,
the powerup opened all the pockets. 

-

[MAME]


Prebillian


PCB Layout

 
 M6100211A
 -------------------------------------------------------------------
 |                    HM50464                                       |
 |  6                 HM50464                                       |
 |  5                 HM50464                               6116    |
 |  4                 HM50464                                       |
 |                                                                  |
 |                                                                  |
 |                                                               J  |
 |                                            68705P5 SW1(8)        |
 |               6264                                            A  |
 |                                              3     SW2(8)        |
 |                                                               M  |
 |                                                                  |
 |                                                               M  |
 |                                                                  |
 |                                   2                           A  |
 |                                                                  |
 |                                   1                              |
 |                                                                  |
 |                                   Z80B            AY-3-8910      |
 | 12MHz                                                            |
 --------------------------------------------------------------------

Notes:
       Vertical Sync: 60Hz
         Horiz. Sync: 15.67kHz
         Z80B Clock : 5.995MHz
     AY-3-8910 Clock: 1.499MHz

Controls :

Info from flyer (japaneese) :
- button for 'Shot'
- pullout plunger for shot power (there's no on-screen power indicator in the game)
- dial for aiming

There's also additional button(s)
used for entering initials(hiscore).

Sound:

Ay 8910 + samples.

It's total guess at the moment. 
(see notes in /sndhrdw/prebillian.c)

Gfx:
Sprites are made of 4 tiles (including bg tiles (mostly chars))

Additional info about i/o port $410 :
 
 -------0  ? [not used]
 ------1-  coin counter 1
 -----2--  coin counter 2
 ----3---  rom 2 HI (reserved for ROM banking , not used)
 ---4----  nmi enable/disable
 765-----  flip screen (bit 5 = flip screen ,  6,7 =?)
 ---
 110 cocktail + flip player 2
 001 cocktail + flip player 1 
 001 cocktail player 2 
 000 cocktail player 1
 001 flip screen   

-