Pang Pom's 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.

Pang Pom's (Metro (Mitchell license), 1992)

Memory Area:metro_sound_io_map

Address Range	Length	Function	Description
0x0000	1	Write	metro_sound_rombank_w
0x0000	1	Write	metro_portb_w
0x0000	1	Read/Write	metro_porta_r, metro_porta_w

Memory Area:metro_sound_map

Address Range	Length	Function	Description
0x0000-0x3FFF	16384	ROM	(/* External ROM */)
0x4000-0x7FFF	16384	ROM Bank	bank1 (/* External ROM (Banked) */)
0x8000-0x87FF	2048	RAM	(/* External RAM */)
0xFF00-0xFFFF	256	RAM	(/* Internal RAM */)

Memory Area:pangpoms_map

Address Range	Length	Function	Description
0x0000-0x3FFFF	262144	ROM	(// ROM)
0x400000-0x41FFFF	131072	RAM Write, Shared	metro_vram_0_w, vram_0 (// Layer 0)
0x420000-0x43FFFF	131072	RAM Write, Shared	metro_vram_1_w, vram_1 (// Layer 1)
0x440000-0x45FFFF	131072	RAM Write, Shared	metro_vram_2_w, vram_2 (// Layer 2)
0x460000-0x46FFFF	65536	Read	metro_bankedrom_r (// Banked ROM)
0x470000-0x471FFF	8192	RAM	(// ???)
0x472000-0x473FFF	8192	RAM Device Write, Shared	palette, palette_device, write, palette (// Palette)
0x474000-0x474FFF	4096	RAM, Shared	spriteram (// Sprites)
0x478000-0x4787FF	2048	RAM, Shared	tiletable (// Tiles Set)
0x478800-0x478813	20	RAM, Shared	videoregs (// Video Registers)
0x478840-0x47884D	14	Write, Shared	metro_blitter_w, blitter_regs (// Tiles Blitter)
0x478860-0x47886B	12	Write, Shared	metro_window_w, window (// Tilemap Window)
0x478870-0x47887B	12	Write Only, Shared	scroll (// Scroll Regs)
0x478880-0x478881	2	Write NOP	(// ? CRT)
0x478890-0x478891	2	Write NOP	(// ? CRT)
0x4788A2-0x4788A3	2	Read/Write	metro_irq_cause_r,metro_irq_cause_w (// IRQ Cause / IRQ Acknowledge)
0x4788A4-0x4788A5	2	Write Only, Shared	irq_enable (// IRQ Enable)
0x4788A8-0x4788A9	2	Write	metro_soundlatch_w (// To Sound CPU)
0x4788AA-0x4788AB	2	Write Only, Shared	rombank (// Rom Bank)
0x4788AC-0x4788AD	2	Write Only, Shared	screenctrl (// Screen Control)
0x800000-0x800001	2	Read/Write	metro_soundstatus_r,metro_soundstatus_w (// From / To Sound CPU)
0x800002-0x800003	2	Read NOP, Write	metro_coin_lockout_1word_w (// Coin Lockout)
0x800004-0x800005	2	Read Port	IN0 (// Inputs)
0x800006-0x800007	2	Read Port	IN1 (//)
0x800008-0x800009	2	Read Port	IN2 (//)
0x80000A-0x80000B	2	Read Port	DSW0 (//)
0x80000C-0x80000D	2	Read Port	DSW1 (//)
0x80000E-0x80000F	2	Read Port	IN3 (//)
0xC00000-0xC0FFFF	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:audiocpu

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	ppoms12.bin	CRC(a749357b) (Fluke: A054)

Memory Area:oki

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	ppoms11.bin	CRC(e89bd565) (Fluke: 68BC)