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Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
Driving Force (Shinkai Inc. (Magic Electronics Inc. license), 1984)
Memory Area:drivfrcp_portmap
Address RangeLengthFunctionDescription
0x00001Read NOP
0x00001Read PortSENSE
0x0080CustomActive Low
0x00011Readdrivfrcp_port1_r
Memory Area:pacman_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384Mirror, ROM0x8000,
0x4000-0x43FF1024Mirror, RAM Write, Shared0xa000, pacman_videoram_w, videoram
0x4400-0x47FF1024Mirror, RAM Write, Shared0xa000, pacman_colorram_w, colorram
0x4800-0x4BFF1024Mirror, Read, Write NOP0xa000, pacman_read_nop,
0x4C00-0x4FEF1008Mirror, RAM0xa000,
0x4FF0-0x4FFF16Mirror, RAM, Shared0xa000, , spriteram
0x50001Mirror, Write0xaf38, irq_mask_w
0x50001Mirror, Read Port0xaf3f, IN0
0x0001UnknownActive Low
0x0002Joystick LeftActive Low
0x0004Joystick RightActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Coin 1Active Low
0x0040Coin 2Active Low
0x0080Service 1Active Low
0x50011Mirror, Device Write0xaf38, namco, namco_device, pacman_sound_enable_w
0x50021Mirror, Write NOP0xaf38,
0x50031Mirror, Write0xaf38, pacman_flipscreen_w
0x5004-0x50052Mirror, Write NOP0xaf38, (// AM_WRITE(pacman_leds_w))
0x50061Mirror, Write NOP0xaf38, (// AM_WRITE(pacman_coin_lockout_global_w))
0x50071Mirror, Write0xaf38, pacman_coin_counter_w
0x5040-0x505F32Mirror, Device Write0xaf00, namco, namco_device, pacman_sound_w
0x50401Mirror, Read Port0xaf3f, IN1
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Button 1Active Low
0x0040Button 2Active Low
0x0080UnknownActive Low
0x5060-0x506F16Mirror, Write Only, Shared0xaf00, , spriteram2
0x5070-0x507F16Mirror, Write NOP0xaf00,
0x50801Mirror, Read Port0xaf3f, DSW1
0x50801Mirror, Write NOP0xaf3f,
0x50C01Mirror, Device Write0xaf3f, watchdog, watchdog_timer_device, reset_w
0x50C01Mirror, Read Port0xaf3f, DSW2
Memory Area:s2650games_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096ROM Bankbank1
0x1000-0x13FF1024Mirror, Write, Shared0x6000, s2650games_colorram_w, colorram
0x1400-0x141F32Mirror, Write0x6000, s2650games_scroll_w
0x1420-0x148F112Mirror, Write Only0x6000,
0x1490-0x149F16Mirror, Write Only, Shared0x6000, , s2650_spriteram
0x14A0-0x14BF32Mirror, Write, Shared0x6000, s2650games_tilesbank_w, s2650_tileram
0x14C0-0x14FF64Mirror, Write Only0x6000,
0x15001Mirror, Read Port0x6000, IN0
0x0001UnknownActive Low
0x0002Joystick LeftActive Low
0x0004Joystick RightActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Coin 1Active Low
0x0040Coin 2Active Low
0x0080Service 1Active Low
0x1500-0x15023Mirror, Write NOP0x6000,
0x15031Mirror, Write0x6000, pacman_flipscreen_w
0x1504-0x15063Mirror, Write NOP0x6000,
0x15071Mirror, Write0x6000, pacman_coin_counter_w
0x1508-0x155F88Mirror, Write Only0x6000,
0x15401Mirror, Read Port0x6000, IN1
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Button 1Active Low
0x0040Button 2Active Low
0x0080UnknownActive Low
0x1560-0x156F16Mirror, Write Only, Shared0x6000, , spriteram2
0x1570-0x157F16Mirror, Write Only0x6000,
0x15801Mirror, Read Port0x6000, DSW0
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x1586-0x15872Mirror, Write NOP0x6000,
0x15C01Mirror, Device Write0x6000, watchdog, watchdog_timer_device, reset_w
0x15C71Mirror, Write0x6000, porky_banking_w
0x1800-0x1BFF1024Mirror, Write, Shared0x6000, s2650games_videoram_w, videoram
0x1C00-0x1FEF1008Mirror, RAM0x6000,
0x1FF0-0x1FFF16Mirror, Write Only, Shared0x6000, , spriteram
0x2000-0x2FFF4096ROM Bankbank2
0x4000-0x4FFF4096ROM Bankbank3
0x6000-0x6FFF4096ROM Bankbank4
Memory Area:s2650games_writeport
Address RangeLengthFunctionDescription
0x00001Device Writesn1, sn76496_device, write
Memory Area:writeport
Address RangeLengthFunctionDescription
0x00001Writepacman_interrupt_vector_w (/* Pac-Man only */)
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096drivforc.2CRC(56331cb5) (Fluke: CA0D)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096drivforc.1CRC(10b59d27) (Fluke: B1ED)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32drivforc.pr1CRC(045aa47f) (Fluke: AAB3)
0x0020-0x011F256drivforc.pr2CRC(9e6d2f1d) (Fluke: 88DF)
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