Bal Cube 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.

Bal Cube (Metro, 1996)

Memory Area:balcube_map

Address Range	Length	Function	Description
0x0000-0x7FFFF	524288	ROM	(// ROM)
0x300000-0x300001	2	Device Read 8-bit	ymf, ymf278b_device, read, 0x00ff (// Sound)
0x300000-0x30000B	12	Device Write 8-bit	ymf, ymf278b_device, write, 0x00ff (// Sound)
0x400000-0x41FFFF	131072	Read	balcube_dsw_r (// DSW x 3)
0x500000-0x500001	2	Read Port	IN0 (// Inputs)
0x500002-0x500009	8	Write	metro_coin_lockout_4words_w (// Coin Lockout)
0x500002-0x500003	2	Read Port	IN1 (//)
0x500006-0x500007	2	Read NOP	(//)
0x600000-0x61FFFF	131072	RAM Write, Shared	metro_vram_0_w, vram_0 (// Layer 0)
0x620000-0x63FFFF	131072	RAM Write, Shared	metro_vram_1_w, vram_1 (// Layer 1)
0x640000-0x65FFFF	131072	RAM Write, Shared	metro_vram_2_w, vram_2 (// Layer 2)
0x660000-0x66FFFF	65536	Read	metro_bankedrom_r (// Banked ROM)
0x670000-0x671FFF	8192	RAM	(// ???)
0x672000-0x673FFF	8192	RAM Device Write, Shared	palette, palette_device, write, palette (// Palette)
0x674000-0x674FFF	4096	RAM, Shared	spriteram (// Sprites)
0x678000-0x6787FF	2048	RAM, Shared	tiletable (// Tiles Set)
0x678840-0x67884D	14	Write, Shared	metro_blitter_w, blitter_regs (// Tiles Blitter)
0x678860-0x67886B	12	Write, Shared	metro_window_w, window (// Tilemap Window)
0x678870-0x67887B	12	Write Only, Shared	scroll (// Scroll)
0x678880-0x678881	2	Write NOP	(// ? CRT)
0x678890-0x678891	2	Write NOP	(// ? CRT)
0x6788A2-0x6788A3	2	Read/Write	metro_irq_cause_r, metro_irq_cause_w (// IRQ Cause / IRQ Acknowledge)
0x6788A4-0x6788A5	2	Write Only, Shared	irq_enable (// IRQ Enable)
0x6788AA-0x6788AB	2	Write Only, Shared	rombank (// Rom Bank)
0x6788AC-0x6788AD	2	Write Only, Shared	screenctrl (// Screen Control)
0x679700-0x679713	20	Write Only, Shared	videoregs (// Video Registers)
0xF00000-0xF0FFFF	65536	RAM, Mirror	0x0f0000 (// RAM (mirrored))

Memory Area:msgogo_map

Address Range	Length	Function	Description
0x0000-0x7FFFF	524288	ROM	(// ROM)
0x100000-0x11FFFF	131072	RAM Write, Shared	metro_vram_0_w, vram_0 (// Layer 0)
0x120000-0x13FFFF	131072	RAM Write, Shared	metro_vram_1_w, vram_1 (// Layer 1)
0x140000-0x15FFFF	131072	RAM Write, Shared	metro_vram_2_w, vram_2 (// Layer 2)
0x160000-0x16FFFF	65536	Read	metro_bankedrom_r (// Banked ROM)
0x170000-0x171FFF	8192	RAM	(// ???)
0x172000-0x173FFF	8192	RAM Device Write, Shared	palette, palette_device, write, palette (// Palette)
0x174000-0x174FFF	4096	RAM, Shared	spriteram (// Sprites)
0x178000-0x1787FF	2048	RAM, Shared	tiletable (// Tiles Set)
0x178840-0x17884D	14	Write, Shared	metro_blitter_w, blitter_regs (// Tiles Blitter)
0x178860-0x17886B	12	Write, Shared	metro_window_w, window (// Tilemap Window)
0x178870-0x17887B	12	Write Only, Shared	scroll (// Scroll)
0x178880-0x178881	2	Write NOP	(// ? CRT)
0x178890-0x178891	2	Write NOP	(// ? CRT)
0x1788A2-0x1788A3	2	Read/Write	metro_irq_cause_r, metro_irq_cause_w (// IRQ Cause / IRQ Acknowledge)
0x1788A4-0x1788A5	2	Write Only, Shared	irq_enable (// IRQ Enable)
0x1788AA-0x1788AB	2	Write Only, Shared	rombank (// Rom Bank)
0x1788AC-0x1788AD	2	Write Only, Shared	screenctrl (// Screen Control)
0x179700-0x179713	20	Write Only, Shared	videoregs (// Video Registers)
0x200000-0x200001	2	Read Port	COINS (// Inputs)
0x200002-0x200009	8	Write	metro_coin_lockout_4words_w (// Coin Lockout)
0x200002-0x200003	2	Read Port	JOYS (//)
0x200006-0x200007	2	Read NOP	(//)
0x300000-0x31FFFF	131072	Read	balcube_dsw_r (// 3 x DSW)
0x400000-0x400001	2	Device Read 8-bit	ymf, ymf278b_device, read, 0x00ff (// Sound)
0x400000-0x40000B	12	Device Write 8-bit	ymf, ymf278b_device, write, 0x00ff (//)
0xF00000-0xF0FFFF	65536	RAM, Mirror	0x0f0000 (// RAM (mirrored))

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:ymf

Address Range	Length	Label/Location	Description
0x0000-0x1FFFFF	2097152	yrw801-m	CRC(2a9d8d43),Silkscreened U52 // Yamaha YRW801 2MB ROM with samples for the OPL4. (Fluke: 6E7E)
0x200000-0x27FFFF	524288	bal-cube_07.7	CRC(f769287d),Silkscreened 7 and U49 // PCM 16 Bit (Signed) (Fluke: AEA2)