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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.
Boulder Dash / Boulder Dash Part 2 (Data East Corporation (licensed from First Star), 1990)
Memory Area:slyspy_map
Address RangeLengthFunctionDescription
0x0000-0x5FFFF393216ROM
0x240000-0x24FFFF65536Devicepfprotect, address_map_bank_device, amap16
0x300000-0x3000078Device Writetilegen3, deco_bac06_device, pf_control_0_w
0x300010-0x3000178Device Writetilegen3, deco_bac06_device, pf_control_1_w
0x300800-0x30087F128Device Read/Writetilegen3, deco_bac06_device, pf_colscroll_r, pf_colscroll_w
0x300C00-0x300FFF1024Device Read/Writetilegen3, deco_bac06_device, pf_rowscroll_r, pf_rowscroll_w
0x301000-0x3017FF2048Device Read/Writetilegen3, deco_bac06_device, pf_data_r, pf_data_w
0x304000-0x307FFF16384RAM, Sharedram (/* Sly spy main ram */)
0x308000-0x3087FF2048RAM, Sharedspriteram (/* Sprites */)
0x310000-0x3107FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0x314000-0x3140034Writeslyspy_control_w
0x314008-0x31400F8Readslyspy_controls_r
0x31C000-0x31C00F16Read, Write NOPslyspy_protection_r,
Memory Area:slyspy_protection_map
Address RangeLengthFunctionDescription
0x0000-0x00078Device Writetilegen2, deco_bac06_device, pf_control_0_w
0x0010-0x00178Device Writetilegen2, deco_bac06_device, pf_control_1_w
0x2000-0x207F128Device Writetilegen2, deco_bac06_device, pf_colscroll_w
0x2400-0x27FF1024Device Writetilegen2, deco_bac06_device, pf_rowscroll_w
0x4000-0x40012Mirror, Read0x30000, slyspy_state_r
0x6000-0x7FFF8192Device Writetilegen2, deco_bac06_device, pf_data_w
0x8000-0x80078Device Writetilegen1, deco_bac06_device, pf_control_0_w
0x8010-0x80178Device Writetilegen1, deco_bac06_device, pf_control_1_w
0xA000-0xA0012Mirror, Write0x30000, slyspy_state_w
0xC000-0xC07F128Device Writetilegen1, deco_bac06_device, pf_colscroll_w
0xC400-0xC7FF1024Device Writetilegen1, deco_bac06_device, pf_rowscroll_w
0xE000-0xFFFF8192Device Writetilegen1, deco_bac06_device, pf_data_w
0x18000-0x19FFF8192Device Writetilegen1, deco_bac06_device, pf_data_w
0x1C000-0x1DFFF8192Device Writetilegen2, deco_bac06_device, pf_data_w
0x20000-0x21FFF8192Device Writetilegen2, deco_bac06_device, pf_data_w
0x22000-0x23FFF8192Device Writetilegen1, deco_bac06_device, pf_data_w
0x2E000-0x2FFFF8192Device Writetilegen1, deco_bac06_device, pf_data_w
0x30000-0x31FFF8192Device Writetilegen1, deco_bac06_device, pf_data_w
0x38000-0x39FFF8192Device Writetilegen2, deco_bac06_device, pf_data_w
Memory Area:slyspy_s_map
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536ROM
0x90000-0x900012Device Writeym2, ym3812_device, write
0xA0000-0xA00012Read NOP(/* Protection counter */)
0xB0000-0xB00012Device Writeym1, ym2203_device, write
0xE0000-0xE00012Device Read/Writeoki, okim6295_device, read, write
0xF0000-0xF00012Device Readsoundlatch, generic_latch_8_device, read
0x1F0000-0x1F1FFF8192RAM Bankbank8
0x1FF400-0x1FF4034Device Writeaudiocpu, h6280_device, irq_status_w
 

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
0x0000-0xFFFF65536fn-10CRC(c74106e7) (Fluke: 3994)
0x0000-0xFFFF65536fn-10CRC(c74106e7) (Fluke: 3994)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x8000-0xFFFF32768fn-04CRC(40f5a760) (Fluke: EDAC)
0x8000-0xFFFF32768fn-04CRC(40f5a760) (Fluke: EDAC)
0x18000-0x1FFFF32768fn-05CRC(824f2168) (Fluke: DDAB)
0x18000-0x1FFFF32768fn-05CRC(824f2168) (Fluke: DDAB)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536fn-07CRC(eac6a3b3) (Fluke: CDC8)
0x0000-0xFFFF65536fn-07CRC(eac6a3b3) (Fluke: CDC8)
0x10000-0x1FFFF65536fn-06CRC(3feee292) (Fluke: F7DA)
0x10000-0x1FFFF65536fn-06CRC(3feee292) (Fluke: F7DA)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072fn-09CRC(c2b27bd2) (Fluke: 08F7)
0x0000-0x1FFFF131072fn-09CRC(c2b27bd2) (Fluke: 08F7)
0x20000-0x3FFFF131072fn-08CRC(5ac97178) (Fluke: 78EF)
0x20000-0x3FFFF131072fn-08CRC(5ac97178) (Fluke: 78EF)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536fn-01CRC(9333121b) (Fluke: B7E3)
0x0000-0xFFFF65536fn-01CRC(9333121b) (Fluke: B7E3)
0x10000-0x1FFFF65536fn-03CRC(254ba60f) (Fluke: 5AAE)
0x10000-0x1FFFF65536fn-03CRC(254ba60f) (Fluke: 5AAE)
0x20000-0x2FFFF65536fn-00CRC(ec18d098) (Fluke: BE7E)
0x20000-0x2FFFF65536fn-00CRC(ec18d098) (Fluke: BE7E)
0x30000-0x3FFFF65536fn-02CRC(4f060cba) (Fluke: 4FAB)
0x30000-0x3FFFF65536fn-02CRC(4f060cba) (Fluke: 4FAB)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536fn-11CRC(990fd8d9) (Fluke: B730)
0x0000-0xFFFF65536fn-11CRC(990fd8d9) (Fluke: B730)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256ta-16.21kCRC(ad26e8d4),Priority (not used) (Fluke: 9724)
0x0000-0x00FF256ta-16.21kCRC(ad26e8d4),Priority (not used) (Fluke: 9724)
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