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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.
Bagman (bootleg, 1982)
Memory Area:bagmanmc_map
Address RangeLengthFunctionDescription
0x0000-0x5FFF24576ROM
0x6000-0x67FF2048RAM
0x9000-0x93FF1024RAM Write, Sharedgalaxold_videoram_w, videoram
0x9400-0x97FF1024Readgalaxold_videoram_r
0x9800-0x983F64RAM Write, Sharedgalaxold_attributesram_w, attributesram
0x9840-0x985F32RAM, Sharedspriteram
0x9860-0x987F32RAM, Sharedbulletsram
0x9880-0x98FF128RAM
0xA0001Read PortIN0
0x0001Coin 1Active High
0x0002Coin 2Active High
0x0004Start 1Active High
0x0008Joystick LeftActive High
0x0010Joystick RightActive High
0x0020Joystick UpActive High
0x0040Joystick DownActive High
0x0080Button 1Active High
0xA0031Writegalaxold_coin_counter_w
0xA8001Read PortIN1
0x0001Start 2Active High
0x0002Joystick LeftActive High
0x0004Joystick RightActive High
0x0008Joystick UpActive High
0x0010Joystick DownActive High
0x0020Button 1Active High
0x0040UnknownActive High
0x0080UprightActive High
0x0000CocktailActive High
0xA8031Device Writecust, galaxian_sound_device, noise_enable_w
0xB0001Read PortDSW
0x00032Active High
0x00023Active High
0x00014Active High
0x00005Active High
0x0000A 2C/1C B 1C/1CActive High
0x0004A 1C/1C B 1C/2CActive High
0x0018EasyActive High
0x0010MediumActive High
0x0008HardActive High
0x0000HardestActive High
0x0020EnglishActive High
0x0000FrenchActive High
0x0080OffActive High
0x0000OnActive High
0xB0011Writegalaxold_nmi_enable_w
0xB0021Writegalaxold_gfxbank_w
0xB0061Writegalaxold_flip_screen_x_w
0xB0071Writegalaxold_flip_screen_y_w
0xB8001Device Read, Device Writewatchdog, watchdog_timer_device, reset_r, cust, galaxian_sound_device, pitch_w
Memory Area:galaxold_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM
0x5000-0x53FF1024RAM Write, Sharedgalaxold_videoram_w, videoram
0x5400-0x57FF1024Readgalaxold_videoram_r
0x5800-0x583F64RAM Write, Sharedgalaxold_attributesram_w, attributesram
0x5840-0x585F32RAM, Sharedspriteram
0x5860-0x587F32RAM, Sharedbulletsram
0x5880-0x58FF128RAM
0x60001Read PortIN0
0x0001Coin 1Active High
0x0002Coin 2Active High
0x0004Start 1Active High
0x0008Joystick LeftActive High
0x0010Joystick RightActive High
0x0020Joystick UpActive High
0x0040Joystick DownActive High
0x0080Button 1Active High
0x6000-0x60012Writegalaxold_leds_w
0x60021Writegalaxold_coin_lockout_w
0x60031Writegalaxold_coin_counter_w
0x6004-0x60074Device Writecust, galaxian_sound_device, lfo_freq_w
0x68001Read PortIN1
0x0001Start 2Active High
0x0002Joystick LeftActive High
0x0004Joystick RightActive High
0x0008Joystick UpActive High
0x0010Joystick DownActive High
0x0020Button 1Active High
0x0040UnknownActive High
0x0080UprightActive High
0x0000CocktailActive High
0x6800-0x68023Device Writecust, galaxian_sound_device, background_enable_w
0x68031Device Writecust, galaxian_sound_device, noise_enable_w
0x68051Device Writecust, galaxian_sound_device, fire_enable_w
0x6806-0x68072Device Writecust, galaxian_sound_device, vol_w
0x70001Read PortIN2
0x70011Writegalaxold_nmi_enable_w
0x70041Writegalaxold_stars_enable_w
0x70061Writegalaxold_flip_screen_x_w
0x70071Writegalaxold_flip_screen_y_w
0x7800-0x7FFF2048Device Readwatchdog, watchdog_timer_device, reset_r
0x78001Device Writecust, galaxian_sound_device, pitch_w
0xFFFC-0xFFFF4RAM
 

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:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096b1.binCRC(b74c75ee) (Fluke: 691E)
0x0000-0x07FF2048g1-l.binBAD_DUMP CRC(2ae6b5ab) (Fluke: 3732)
0x0000-0x001F32bagmanmc.clrBAD_DUMP CRC(6a0c7d87) (Fluke: 9DB9)
0x1000-0x1FFF4096g2-u.binCRC(a2790089) (Fluke: 36A0)
0x1000-0x1FFF4096b2.binCRC(a7d99916) (Fluke: A463)
0x2000-0x27FF2048g2-l.binBAD_DUMP CRC(98b37397) (Fluke: D804)
0x2000-0x2FFF4096b3.binCRC(c78f5360) (Fluke: F7FD)
0x3000-0x3FFF4096b4.binCRC(eebd3bd1) (Fluke: 5F4E)
0x3000-0x3FFF4096g1-u.binCRC(b63cfae4) (Fluke: AFA3)
0x4000-0x4FFF4096b5.binCRC(0fe24b8c) (Fluke: 8729)
0x5000-0x5FFF4096b6.binCRC(f50390e7) (Fluke: 5A56)
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