Submarine 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.

Submarine (Midway, 1979)

Memory Area:submar_map

Address Range	Length	Function	Description
0x0000-0x1FFF	8192	ROM
0x2000-0x207F	128	RAM

Memory Area:submar_portmap

Address Range

Length

Function

Description

0x0000

Read/Write

submar_sensor0_r, submar_motor_w

0x0001

Read/Write

submar_sensor1_r, submar_lamp_w

0x0002

Write

submar_solenoid_w

0x0003

Read Port, Write

DSW, submar_sound_w

0x0001	Coinage	Active High
0x0001	1C_1C	Active High
0x0000	1C_2C	Active High
0x0002	Demo_Sounds	Active High
0x0002	Off	Active High
0x0000	On	Active High
0x0000	15 seconds at 1000	Active High
0x0004	15 seconds at 2000	Active High
0x0008	30 seconds at 2000	Active High
0x000c	30 seconds at 3000	Active High
0x0000	15 seconds at 2000	Active High
0x0004	15 seconds at 3000	Active High
0x0008	30 seconds at 3000	Active High
0x000c	30 seconds at 4000	Active High
0x0000	15 seconds at 3000	Active High
0x0004	15 seconds at 4000	Active High
0x0008	30 seconds at 4000	Active High
0x000c	30 seconds at 5000	Active High
0x0000	15 seconds at 4000	Active High
0x0004	15 seconds at 5000	Active High
0x0008	30 seconds at 5000	Active High
0x000c	30 seconds at 6000	Active High
0x0030	Game_Time	Active High
0x0000	60 seconds	Active High
0x0010	70 seconds	Active High
0x0020	80 seconds	Active High
0x0030	90 seconds	Active High
0x0000	Off	Active High
0x0040	On	Active High

0x0004-0x0005

Write

submar_led_w

0x0006

Device Write

watchdog, watchdog_timer_device, reset_w

0x0007

Write

submar_irq_clear_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:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	sub.a1	CRC(bcef5db4)
0x0800-0x0FFF	2048	sub.a2	CRC(f5780dd0)