[Oct/16/97]
 
 Pinball Action
 (C)1985 TEHKAN
 
 MAIN CPU   : Z80A (NEC/D780C-1)/4M
 MAIN RAM   : MSM2128-15RS (OKI/16Kbit) x2 (4Kbyte)
 
 SOUND CPU  : Z80A (NEC/D780C-1)/?M
 SOUND CTC  : Z80A-CTC (SHARP/LH0082A)
 SOUND RAM  : MSM2128-15RS (OKI/16Kbit) x1 (2Kbyte)
 SOUND CHIP : YM2149F x3 (YAMAHA/AY-8910 PIN COMPATIBLE)
 
 BG  : MSM2128-15RS (OKI/16Kbit) x2 (4Kbyte)
 OBJ : ?
 COL : ?
 
 
 A-xx.BIN ROMs are located on BOARD-A (6001-NEW A)
 B-xx.BIN ROMs are located on BOARD-B (6001-NEW B)
 
 ROM FILE   SIZE   CSUM   DESC.
 ----------------------------------
 A-E3.BIN   2764 : FF55 : SOUND PRG
 A-J5.BIN  27128 : 5E3B : BG
 A-J6.BIN  27128 : 3F44 :  |
 A-J7.BIN  27128 : ED65 :  |
 A-J8.BIN  27128 : 4F1E : /
 A-S6.BIN   2764 : 6C2E : CHR
 A-S7.BIN   2764 : 22E2 :  |
 A-S8.BIN   2764 : 325C : /
 B-C7.BIN   2764 : FC7E : OBJ
 B-D7.BIN   2764 : 3F82 :  |
 B-F7.BIN   2764 : 1453 :  |
 B-L7.BIN   2764 : F596 : /
 B-N7.BIN  27128 : D809 : MAIN PRG
 B-P7.BIN  27128 : 030B : /
 
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 [Mar/18/98]
 
 Here are the proms for Tehkan's Pinball Action!
 NOTE: This game is Vertical!
 1 D780C and 1 Z80A CTC and 3 AY-3-8910 (8405)
 
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 [MAME]
 
 Pinball Action
 
 memory map (preliminary)
 
 
 0000-9fff ROM
 d000-d3ff Video RAM
 d400-d7ff Color RAM
 d800-dbff Background Video RAM
 dc00-dfff Background Color RAM
 e000-e07f Sprites
 e400-e5ff Palette RAM
 
 read:
 e600      IN0
 e601      IN1
 e602      IN2
 e604      DSW1
 e605      DSW2
 e606      watchdog reset????
 
 write:
 e600      interrupt enable
 e604      flip screen
 e606      bg scroll? not sure
 e800      command for the sound CPU
 
 
 Notes:
 - pbactio2 has a ROM for a third Z80, not emulated, function unknown
 
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 [Mar/26/2005]
 
 Pinball Action (set 3, encrypted)  
   
 Tehkan 1985 
 
 CPU:
 1x Z80 4.000MHz (main)
 1x Z80 3.072MHz (main)
 3x AY8910 1.500MHz (sound)  
 
 ROMs:
 15x  
  
 Dumped 26/03/2005  
 
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