Galaxy Ranger 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.

Galaxy Ranger (Sega, 1983)

Memory Area:mainmem

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0xBFFF	16384	ROM Bank	bank1
0xC000-0xC7FF	2048	Read/Write, Shared	astron_OBJ_read, astron_OBJ_write, obj_ram (/* OBJ according to the schematics (sprite) */)
0xC800-0xCFFF	2048	Read/Write	astron_DISC_read, astron_DISC_write (/* DISC interface according to schematics */)
0xD000	1	Read Port	DSWA (/* SW bank 2 (DIPs) */)
0xD001	1	Read Port	DSWB (/* SW bank 3 (DIPs) */)
0xD002	1	Read Port	IN0 (/* SW bank 0 (IO) */)
0xD003	1	Read Port	IN1 (/* SW bank 1 (IO) */)
0xD800-0xD803	4	Read/Write, Shared	astron_OUT_read, astron_OUT_write, out_ram (/* OUT according to schematics (output port) */)
0xE000-0xE1FF	512	Read/Write, Shared	astron_COLOR_read, astron_COLOR_write, color_ram (/* COLOR according to the schematics */)
0xF000-0xF7FF	2048	Write, Shared	astron_FIX_write, fix_ram (/* FIX according to schematics (characters) */)
0xF800-0xFFFF	2048	RAM	(/* RAM according to schematics */)

Memory Area:mainport

Address Range	Length	Function	Description
0x0000-0x0001	2	Write	astron_io_bankswitch_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:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	5280	CRC(583af1ff) (Fluke: EBF2)
0x0000-0x07FF	2048	5280	CRC(583af1ff) (Fluke: EBF2)
0x0800-0x0FFF	2048	5281	CRC(7b5c820c) (Fluke: 6E1F)
0x0800-0x0FFF	2048	5281	CRC(7b5c820c) (Fluke: 6E1F)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	gr5594.bin	CRC(4403ef5a) (Fluke: 1897)
0x0000-0x3FFF	16384	gr5594.bin	CRC(4403ef5a) (Fluke: 1897)
0x4000-0x7FFF	16384	gr5611.bin	CRC(b16bdfe4) (Fluke: 7DD4)
0x4000-0x7FFF	16384	gr5611.bin	CRC(b16bdfe4) (Fluke: 7DD4)
0x8000-0xBFFF	16384	gr5595.bin	CRC(ccbaec4f) (Fluke: E294)
0x8000-0xBFFF	16384	gr5595.bin	CRC(ccbaec4f) (Fluke: E294)
0xC000-0xFFFF	16384	gr5612.bin	CRC(e312d080) (Fluke: 710F)
0xC000-0xFFFF	16384	gr5612.bin	CRC(e312d080) (Fluke: 710F)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	gr5633.bin	CRC(398f6b23) (Fluke: 19C5)
0x4000-0x7FFF	16384	gr5634.bin	CRC(2c5be1b7) (Fluke: 330C)
0x8000-0xBFFF	16384	gr5592.bin	CRC(d13715f8) (Fluke: 2357)
0x8000-0xBFFF	16384	gr5592.bin	CRC(d13715f8) (Fluke: 2357)
0xC000-0xFFFF	16384	gr5593.bin	CRC(b0a557aa) (Fluke: 68C1)
0xC000-0xFFFF	16384	gr5593.bin	CRC(b0a557aa) (Fluke: 68C1)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x01FF	512	5279	CRC(8716aeb5) (Fluke: D84A)
0x0000-0x01FF	512	5279	CRC(8716aeb5) (Fluke: D84A)

Memory Area:user1

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	pr-5278.bin	CRC(e81613da) (Fluke: 065B)
0x0000-0x00FF	256	pr-5278.bin	CRC(e81613da) (Fluke: 065B)
0x0100-0x01FF	256	pr-5277.bin	CRC(bf2c33ab) (Fluke: 8D6F)
0x0100-0x01FF	256	pr-5277.bin	CRC(bf2c33ab) (Fluke: 8D6F)
0x0200-0x021F	32	pr-5276.bin	CRC(91267e8a) (Fluke: A813)
0x0200-0x021F	32	pr-5276.bin	CRC(91267e8a) (Fluke: A813)
0x0220-0x023F	32	pr-5275.bin	CRC(0c872a9b) (Fluke: B57D)
0x0220-0x023F	32	pr-5275.bin	CRC(0c872a9b) (Fluke: B57D)