Twin Falcons 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.

Twin Falcons (Philko (Poara Enterprises license), 1989)

Memory Area:whizz_io_map

Address Range	Length	Function	Description
0x0000-0x0001	2	Device Read/Write	ymsnd, ym2151_device, read, write
0x0040	1	Write NOP
0x00C0	1	Device Read	soundlatch, generic_latch_8_device, read

Memory Area:whizz_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0xBFFF	16384	ROM Bank	bank1
0xC000-0xC3FF	1024	RAM Device Write, Shared	palette, palette_device, write, palette
0xC400-0xC7FF	1024	RAM Device Write, Shared	palette, palette_device, write_ext, palette_ext
0xC800	1	Read Port, Device Write	DSW0, soundlatch, generic_latch_8_device, write
0xC801	1	Read Port, Write	DSW1, whizz_bankswitch_w
0xC802	1	Read Port, Device Write	DSW2, watchdog, watchdog_timer_device, reset_w
0xC803	1	Read Port, Write NOP	IN0,
0xC804	1	Read Port, Write	IN1, c804_w
0xC805	1	Read Port, Write NOP	IN2,
0xC806	1	Read Port	IN3
0xC807	1	Read Port	IN4
0xC808-0xC809	2	Write Only, Shared	bg_scrollx
0xC80A-0xC80B	2	Write Only, Shared	bg_scrolly
0xC80C	1	Write	gfxctrl_w
0xD000-0xD7FF	2048	RAM Write, Shared	videoram_w, videoram
0xD800-0xDFFF	2048	RAM Write, Shared	colorram_w, colorram
0xE000-0xEFFF	4096	RAM
0xE805	1	Write	star_scrollx_w
0xE806	1	Write	star_scrolly_w
0xF000-0xFFFF	4096	RAM, Shared	spriteram

Memory Area:whizz_sound_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0xF800-0xFFFF	2048	RAM

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
0x0000-0x7FFF	32768	t-1.b4	CRC(b84bc980) (Fluke: 7B95)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x4000-0x7FFF	16384	t-6.r6	CRC(8e4ca776),characters (Fluke: 8CC5)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	t-10.y10	CRC(b678ef5b) (Fluke: A9C1)
0x10000-0x1FFFF	65536	t-9.w10	CRC(d7345fb9) (Fluke: 104B)
0x20000-0x2FFFF	65536	t-8.u10	CRC(41428dac) (Fluke: C787)
0x40000-0x4FFFF	65536	t-13.y11	CRC(0eba10bd) (Fluke: 1D33)
0x50000-0x5FFFF	65536	t-12.w11	CRC(c65050ce) (Fluke: 224F)
0x60000-0x6FFFF	65536	t-11.u11	CRC(51a2c65d) (Fluke: 7D03)

Memory Area:gfx3

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	t-2.a5	CRC(9c106835),sprites (Fluke: 9350)
0x10000-0x1FFFF	65536	t-3.b5	CRC(9b421ccf) (Fluke: 366C)
0x20000-0x2FFFF	65536	t-4.a7	CRC(3a1db986) (Fluke: 6260)
0x30000-0x3FFFF	65536	t-5.b7	CRC(9bd22190) (Fluke: 3CAB)

Memory Area:gfx4

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	t-7.y8	CRC(a8b5f750) (Fluke: 0255)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	t-15.bin	CRC(e1f20144) (Fluke: 1A13)
0x8000-0x17FFF	65536	t-14.bin	CRC(c499ff83) (Fluke: CD84)