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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.
Dragon Buster (Namco, 1984)
Memory Area:mcu_map
Address RangeLengthFunctionDescription
0x0000-0x001F32Device Read/Writemcu, hd63701_cpu_device, m6801_io_r, m6801_io_w
0x0080-0x00FF128RAM
0x1000-0x13FF1024Device Read/Writenamco, namco_cus30_device, namcos1_cus30_r, namcos1_cus30_w (/* PSG device, shared RAM */)
0x2000-0x3FFF8192Device Writewatchdog, watchdog_timer_device, reset_w (/* watchdog? */)
0x4000-0x7FFF16384Writeskykid_irq_2_ctrl_w
0x8000-0xBFFF16384ROM
0xC000-0xC7FF2048RAM
0xF000-0xFFFF4096ROM
Memory Area:mcu_port_map
Address RangeLengthFunctionDescription
0x00001Writeskykid_led_w (/* lamps */)
0x00001Readinputport_r (/* input ports read */)
0x00001ReadreadFF (/* leds won't work otherwise */)
0x00001Writeinputport_select_w (/* input port select */)
Memory Area:skykid_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM Bankbank1 (/* banked ROM */)
0x2000-0x2FFF4096Read/Write, Sharedskykid_videoram_r,skykid_videoram_w, videoram (/* Video RAM (background) */)
0x4000-0x47FF2048Read/Write, Sharedskykid_textram_r,skykid_textram_w, textram (/* video RAM (text layer) */)
0x4800-0x5FFF6144RAM, Sharedspriteram (/* RAM + Sprite RAM */)
0x6000-0x60FF256Writeskykid_scroll_y_w (/* Y scroll register map */)
0x6200-0x63FF512Writeskykid_scroll_x_w (/* X scroll register map */)
0x6800-0x6BFF1024Device Read/Writenamco, namco_cus30_device, namcos1_cus30_r, namcos1_cus30_w (/* PSG device, shared RAM */)
0x7000-0x7FFF4096Writeskykid_irq_1_ctrl_w (/* IRQ control */)
0x7800-0x7FFF2048Device Readwatchdog, watchdog_timer_device, reset_r
0x8000-0xFFFF32768ROM(/* ROM */)
0x8000-0x8FFF4096Writeskykid_subreset_w (/* MCU control */)
0x9000-0x9FFF4096Writeskykid_bankswitch_w (/* Bankswitch control */)
0xA000-0xA0012Writeskykid_flipscreen_priority_w (/* flip screen & priority */)
 

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
0x0000-0x1FFF8192db1_6.6lCRC(c080b66c),tiles (Fluke: 7432)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192db1_5.7eCRC(28129aed) (Fluke: 717B)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384db1_8.10nCRC(11942c61),sprites (Fluke: 8A30)
0x4000-0x7FFF16384db1_7.10mCRC(cc130fe2) (Fluke: 39E1)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x8000-0xBFFF16384db1_2b.6cCRC(0f11cd17) (Fluke: 93FB)
0xC000-0xFFFF16384db1_1.6bCRC(1c7c1821) (Fluke: 71B7)
0x10000-0x13FFF16384db1_3.6dCRC(6da169ae),banked ROM (Fluke: F8A0)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x8000-0x9FFF8192db1_4.3cCRC(8a0b1fc1),subprogram for the MCU (Fluke: 980F)
0xF000-0xFFFF4096cus60-60a1.mcuCRC(076ea82a),MCU internal code (Fluke: CB6E)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256db1-1.2nCRC(3f8cce97),red component (Fluke: 4D25)
0x0100-0x01FF256db1-2.2pCRC(afe32436),green component (Fluke: 41B7)
0x0200-0x02FF256db1-3.2rCRC(c95ff576),blue component (Fluke: A5E2)
0x0300-0x04FF512db1-4.5nCRC(b2180c21),tiles lookup table (Fluke: EE11)
0x0500-0x06FF512db1-5.6nCRC(5e2b3f74),sprites lookup table (Fluke: 0E71)
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