Sky Destroyer 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 Destroyer (Taito Corporation, 1985)

Memory Area:cyclemb_io

Address Range	Length	Function	Description
0xC000	1	Write	cyclemb_bankswitch_w
0xC09E-0xC09F	2	Read/Write	skydest_i8741_0_r, skydest_i8741_0_w
0xC0BF	1	Write	cyclemb_flip_w (//flip screen)

Memory Area:cyclemb_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x8FFF	4096	ROM Bank	bank1
0x9000-0x97FF	2048	RAM, Shared	vram
0x9800-0x9FFF	2048	RAM, Shared	cram
0xA000-0xA7FF	2048	RAM, Shared	obj1_ram (//ORAM1 (only a000-a3ff tested))
0xA800-0xAFFF	2048	RAM, Shared	obj2_ram (//ORAM2 (only a800-abff tested))
0xB000-0xB7FF	2048	RAM, Shared	obj3_ram (//ORAM3 (only b000-b3ff tested))
0xB800-0xBFFF	2048	RAM	(//WRAM)

Memory Area:cyclemb_sound_io

Address Range	Length	Function	Description
0x0000-0x0001	2	Device Read/Write	ymsnd, ym2203_device, read, write
0x0040	1	Device Read, Device Write	soundlatch, generic_latch_8_device, read, soundlatch2, generic_latch_8_device, write

Memory Area:cyclemb_sound_map

Address Range	Length	Function	Description
0x0000-0x3FFF	16384	ROM
0x6000-0x63FF	1024	RAM

Memory Area:skydest_io

Address Range	Length	Function	Description
0xC000	1	Write	cyclemb_bankswitch_w
0xC080-0xC081	2	Read/Write	skydest_i8741_0_r, skydest_i8741_0_w
0xC0BF	1	Write	cyclemb_flip_w (//flip screen)

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
0x0000-0x1FFF	8192	pd0-15.10c	CRC(f8b3d3f7)
0x2000-0x3FFF	8192	pd0-16.10d	CRC(19ce8106)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	pd1-1.1a	CRC(78951c75)
0x2000-0x3FFF	8192	pd0-2.1b	CRC(da2d48cd)
0x4000-0x5FFF	8192	pd0-3.1c	CRC(28ef8eda)
0x6000-0x7FFF	8192	pd1-4.1e	CRC(b8ec9938)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	green.11t	CRC(f803beb7)
0x0100-0x01FF	256	red.11u	CRC(24b7b6f3)

Memory Area:sprite_data

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	pd0-7.1k	CRC(83137d42)
0x2000-0x3FFF	8192	pd1-8.1l	CRC(b810858b)
0x4000-0x5FFF	8192	pd0-9.1m	CRC(6f558bee)
0x6000-0x7FFF	8192	pd1-10.1n	CRC(5840b5b5)
0x8000-0x9FFF	8192	pd0-11.1r	CRC(29e5fce4)
0xA000-0xBFFF	8192	pd0-12.1s	CRC(06234942)
0xC000-0xDFFF	8192	pd1-13.1t	CRC(3cca5b95)
0xE000-0xFFFF	8192	pd0-14.1u	CRC(7ef05b01)

Memory Area:tilemap_data

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	pd0-20.1h	CRC(8b2137f2)

Memory Area:timing_proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	p1.2e
0x0020-0x003F	32	p0.4e