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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.
Blades of Steel (Konami, 1987)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192Device Read/Writek007342, k007342_device, read, write (/* Color RAM + Video RAM */)
0x2000-0x21FF512Device Read/Writek007420, k007420_device, read, write (/* Sprite RAM */)
0x2200-0x23FF512Device Read/Writek007342, k007342_device, scroll_r, scroll_w (/* Scroll RAM */)
0x2400-0x245F96RAM Device Write, Sharedpalette, palette_device, write_indirect, palette (/* palette */)
0x2600-0x26078Device Writek007342, k007342_device, vreg_w (/* Video Registers */)
0x2E001Read PortCOINSW (/* DIPSW #3, coinsw, startsw */)
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Coin 3Active Low
0x0008Start 1Active Low
0x0010Start 2Active Low
0x0020Flip_ScreenActive High
0x0020OffActive High
0x0000OnActive High
0x2E011Read PortP1 (/* 1P controls */)
0x00804Active High
0x00007Active High
0x2E021Read PortP2 (/* 2P controls */)
0x2E031Read PortDSW2 (/* DISPW #2 */)
0x0004CabinetActive High
0x0000UprightActive High
0x0004CocktailActive High
0x001830 secsActive High
0x001020 secsActive High
0x000815 secsActive High
0x000010 secsActive High
0x0060DifficultyActive High
0x0060EasyActive High
0x0040NormalActive High
0x0020DifficultActive High
0x0000Very_DifficultActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0x2E401Read PortDSW1 (/* DIPSW #1 */)
0x2E801Writebladestl_sh_irqtrigger_w (/* cause interrupt on audio CPU */)
0x2EC01Device Writewatchdog, watchdog_timer_device, reset_w
0x2F00-0x2F034Readtrackball_r (/* Trackballs */)
0x2F401Writebladestl_bankswitch_w (/* bankswitch control */)
0x2F80-0x2F9F32Device Read/Writek051733, k051733_device, read, write (/* Protection: 051733 */)
0x2FC01Write NOP(/* ??? */)
0x4000-0x5FFF8192RAM(/* Work RAM */)
0x6000-0x7FFF8192ROM Bankrombank (/* banked ROM */)
0x8000-0xFFFF32768ROM
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM
0x1000-0x10012Device Read/Writeymsnd, ym2203_device, read, write (/* YM2203 */)
0x30001Writebladestl_speech_ctrl_w (/* UPD7759 */)
0x40001Readbladestl_speech_busy_r (/* UPD7759 */)
0x50001Write NOP(/* ??? */)
0x60001Device Readsoundlatch, generic_latch_8_device, read
0x8000-0xFFFF32768ROM
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0x8000-0xFFFF32768797-c02.12dCRC(65a331ea) (Fluke: 1550)
0x8000-0xFFFF32768797-c02.12dCRC(65a331ea) (Fluke: 1550)
0x8000-0xFFFF32768797-c02.12dCRC(65a331ea) (Fluke: 1550)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144797a05.19hCRC(5491ba28),tiles (Fluke: 2233)
0x0000-0x3FFFF262144797a05.19hCRC(5491ba28),tiles (Fluke: 2233)
0x0000-0x3FFFF262144797a05.19hCRC(5491ba28),tiles (Fluke: 2233)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144797a06.13hCRC(d055f5cc),sprites (Fluke: 7414)
0x0000-0x3FFFF262144797a06.13hCRC(d055f5cc),sprites (Fluke: 7414)
0x0000-0x3FFFF262144797a06.13hCRC(d055f5cc),sprites (Fluke: 7414)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536797-t01.19cCRC(89d7185d) (Fluke: 1654)
Memory Area:upd
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288797a03.11aCRC(9ee1a542) (Fluke: 5757)
0x0000-0x7FFFF524288797a03.11aCRC(9ee1a542) (Fluke: 5757)
0x0000-0x7FFFF524288797a03.11aCRC(9ee1a542) (Fluke: 5757)
0x80000-0xBFFFF262144797a04.9aCRC(9ac8ea4e) (Fluke: E923)
0x80000-0xBFFFF262144797a04.9aCRC(9ac8ea4e) (Fluke: E923)
0x80000-0xBFFFF262144797a04.9aCRC(9ac8ea4e) (Fluke: E923)
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