[Sep/01/2001]

Game:		Gee Bee ?

Manufacturer:	Namco

Board No:		825-0001A (21019211)



The board is untested at this point but the ROMs were joined and ran on Mame where
they played fine.  Ill assume these ROMs are good.


  Label      Location  Device   Checksum   Comments
----------------------------------------------------
  316-0132   1M        2708     504A 
  316-0133   1P        2708     50FD 
  316-0134   1S        2708     524C 
  316-0135   1T        2708     526D 
             3A        2708     FD7D 

-

[MAME]

Memory map (preliminary)

 0000-0fff ROM1 / ROM0
 1000-1fff ROM2
 2000-2fff VRAM
 3000-3fff CGROM
 4000-4fff RAM
 5000-5fff IN
			 A1 A0
			  0  0	  SW0
					  D0 COIN1
					  D1 COIN2
					  D2 START1
					  D3 START2
					  D4 BUTTON1
					  D5 TEST MODE
			  0  1	  SW1
					  - not used in Gee Bee
					  - digital joystick left/right and button in
						Kaitei Tagara Sagashi (two in Cocktail mode)
			  1  0	  DSW2
					  D0	cabinet: 0= upright  1= table
					  D1	balls:	 0= 3		 1= 5
					  D2-D3 coinage: 0=1c/1c 1=1c/2c 2=2c/1c 3=free play
					  D4-D5 bonus:	 0=none, 1=40k	 2=70k	 3=100k
			  1  1	  VOLIN
					  D0-D7 vcount where paddle starts (note: rotated 90 deg!)
					  - not used(?) in Kaitei Tagara Sagashi
 6000-6fff OUT6
			 A1 A0
			  0  0	  BALL H
			  0  1	  BALL V
			  1  0	  n/c
			  1  1	  SOUND
					  D3 D2 D1 D0	   sound
					   x  0  0	0  PURE TONE 4V (2000Hz)
					   x  0  0	1  PURE TONE 8V (1000Hz)
					   x  0  1	0  PURE TONE 16V (500Hz)
					   x  0  1	1  PURE TONE 32V (250Hz)
					   x  1  0	0  TONE1 (!1V && !16V)
					   x  1  0	1  TONE2 (!2V && !32V)
					   x  1  1	0  TONE3 (!4V && !64V)
					   x  1  1	1  NOISE
					   0  x  x	x  DECAY
					   1  x  x	x  FULL VOLUME
 7000-7fff OUT7
			 A2 A1 A0
			  0  0	0 LAMP 1
			  0  0	1 LAMP 2
			  0  1	0 LAMP 3
			  0  1	1 COUNTER
			  1  0	0 LOCK OUT COIL
			  1  0	1 BGW
			  1  1	0 BALL ON
			  1  1	1 INV
 8000-ffff INTA (read FF)

-

