Sky Robo Memory Map

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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.

Sky Robo (Nichibutsu, 1989)

Memory Area:bigfghtr_map

Address Range	Length	Function	Description
0x0000-0x7FFFF	524288	ROM
0x80000-0x805FF	1536	RAM, Shared	spriteram
0x80600-0x83FFF	14848	Read/Write, Shared	sharedram_r, sharedram_w, sharedram
0x84000-0x85FFF	8192	RAM	(//work ram)
0x86000-0x86FFF	4096	RAM Write, Shared	armedf_bg_videoram_w, bg_videoram
0x87000-0x87FFF	4096	RAM Write, Shared	armedf_fg_videoram_w, fg_videoram
0x88000-0x89FFF	8192	Read/Write 8-bit	armedf_text_videoram_r,armedf_text_videoram_w,0x00ff
0x8A000-0x8AFFF	4096	RAM Device Write, Shared	palette, palette_device, write, palette
0x8B000-0x8BFFF	4096	RAM, Shared	spr_pal_clut
0x8C000-0x8C001	2	Read Port	P1
0x8C002-0x8C003	2	Read Port	P2
0x8C004-0x8C005	2	Read Port	DSW0
0x8C006-0x8C007	2	Read Port	DSW1
0x8D000-0x8D001	2	Write	terraf_io_w (//807b0)
0x8D002-0x8D003	2	Write	armedf_bg_scrollx_w
0x8D004-0x8D005	2	Write	armedf_bg_scrolly_w
0x8D006-0x8D007	2	Write	armedf_fg_scrollx_w
0x8D008-0x8D009	2	Write	armedf_fg_scrolly_w
0x8D00A-0x8D00B	2	Write	sound_command_w
0x8D00C-0x8D00D	2	Write NOP	(//watchdog)
0x8D00E-0x8D00F	2	Write	irq_lv1_ack_w
0x400000-0x400001	2	Read	latch_r

Memory Area:sound_map

Address Range	Length	Function	Description
0x0000-0xF7FF	63488	ROM
0xF800-0xFFFF	2048	RAM

Memory Area:sound_portmap

Address Range	Length	Function	Description
0x0000-0x0001	2	Device Write	ymsnd, ym3812_device, write
0x0002	1	Device Write	dac1, dac_byte_interface, write
0x0003	1	Device Write	dac2, dac_byte_interface, write
0x0004	1	Read	soundlatch_clear_r
0x0006	1	Device Read	soundlatch, generic_latch_8_device, read

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 Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	8.17k	CRC(0aeab61e) (Fluke: DB34)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	7	CRC(f556ef28),Rom location 11C (Fluke: FB8F)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	5.13f	CRC(d440a29f) (Fluke: C4AA)
0x20000-0x2FFFF	65536	6.15f	CRC(27469a76) (Fluke: 67B5)

Memory Area:gfx3

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	12.8a	CRC(a5694ea9) (Fluke: 877E)
0x10000-0x1FFFF	65536	11.6a	CRC(10b74e2c) (Fluke: 0BAE)

Memory Area:gfx4

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	9.8d	CRC(fe67800e) (Fluke: 099F)
0x20000-0x3FFFF	131072	10.9d	CRC(dcb828c4) (Fluke: 6BB3)

Memory Area:mcu

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	i8751.mcu

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	tf.13h	CRC(81244757),Prom is a N82S129AN type (Fluke: 6706)