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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.
Steel Worker (Taito, 1980)
Memory Area:steelwkr_io_map
Address RangeLengthFunctionDescription
0x00011Read PortIN1
0x0001Coin 1Active Low
0x0002Start 2Active High
0x0004Start 1Active High
0x0008UnknownActive High
0x0010Button 1Active High
0x0020Joystick LeftActive High
0x0040Joystick RightActive High
0x0080Button 2Active Low
0x00021Read, Device Writeinvrvnge_02_r, mb14241, mb14241_device, shift_count_w
0x00031Device Read, Writemb14241, mb14241_device, shift_result_r, invadpt2_sh_port_1_w
0x00041Device Writemb14241, mb14241_device, shift_data_w
0x00051Writeinvadpt2_sh_port_2_w
0x00061Writesteelwkr_sh_port_3_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 RangeLengthLabel/LocationDescription
0x0000-0x03FF10241.36CRC(5d78873a) (Fluke: 7938)
0x0000-0x03FF1024la05.1CRC(98f31392) (Fluke: F37C)
0x0400-0x07FF10242.35CRC(99cd70c6) (Fluke: 95A2)
0x0400-0x07FF1024la06.2CRC(98f31392) (Fluke: F37C)
0x0800-0x0BFF10243.34CRC(18103b67) (Fluke: 8471)
0x0C00-0x0FFF10244.33CRC(c413ae82) (Fluke: 6E7E)
0x1000-0x13FF10245.32CRC(ca7b07b5) (Fluke: 9980)
0x1400-0x17FF10246.31CRC(f8181fa0) (Fluke: 0952)
0x1800-0x1BFF10247.42CRC(a35f113e) (Fluke: 43E9)
0x1C00-0x1FFF10248.41CRC(af208370) (Fluke: BA6C)
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