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{{this|the Emulator|Mess (disambiguation)}}
{{Infobox Software
| name = MESS
| logo = ]
| screenshot = <!-- Commented out because image was deleted: ] -->
| caption =
| developer = MESS ]
| latest_release_version = 0.133
| latest_release_date = ], ]
| latest_preview_version =
| latest_preview_date =
| operating_system = ]
| platform =
| genre = ]
| license = Custom
| website = <br>
}}

'''Multi Emulator Super System''' ('''MESS''') is an ] for many game consoles and computer systems, based on the ] core.

The primary purpose of MESS is to preserve decades of ] and ] history. As technology continues to progress, MESS prevents these ] systems from being lost and forgotten.

MESS emulates ] and ], ] and ]. The project strives for accuracy and portability and therefore is not always the fastest emulator for any one particular system. However, its accuracy makes it useful for ] game development, for example on the ].<ref>{{cite book | title = Game Console Hacking: Xbox, Playstation, Nintendo, Atari, & Gamepark 32 | last = Grand | first = Joe | coauthors = Frank Thornton, Albert Yarusso | isbn = 1931836210 | publisher = Syngress | year = 2004 | page = 506 }}</ref>

MESS supports 340 unique systems with 998 total system variations and is growing all the time. However, not all of the systems in MESS are functional, some are marked as non-working or are in development.

==MESS license==
MESS is distributed under the same license as MAME. While MESS is available at no cost, including its source code, it is not ] or ] because commercial use and redistribution are prohibited. That is, its license does not meet the conditions of the ], nor is it "free software" as defined by the ].

In particular, MESS may be redistributed in source or binary form, either modified or unmodified, but: "Redistributions may not be sold, nor may they be used in a commercial product or activity." Also, redistributions of modified versions (derivative works) must include the complete corresponding source code (similar to a ]).

==List of supported systems==
See ].

==Challenges of MESS Emulation Usage==
Generally the emulation only includes raw ] such as for the ] and ], and specialized ]s such as tone generators or video ]. However, the emulators do not include any programming code stored in ] chips from the emulated computer, since this is ] software. This makes most emulations in MESS generally unusable without obtaining ROM data.

Obtaining the ROM data by oneself directly from the hardware being emulated can be extremely difficult, technical, and expensive, since it may require ] of ] chips from the ] of the device they own. The desoldered IC is placed into an expensive chip reader device connected to the ] of another computer, with pin sockets on the reader specifically designed to match the ] shape in question, to perform a ] of the ROM to a data file.

Removal of a soldered chip is often far easier than reinstalling it, especially for extremely small ] chips, and the emulated device in question may be effectively destroyed beyond recovery after the ROM has been removed for reading.

However, if one has a working system, it is far easier to dump the ROM data to tape, disk, etc. and transfer the data file to one's target machine.

== See also ==
* ], Side-project which emulates only the ] using the MAME code.
* ]

== References ==
{{reflist}}

== External links ==
*
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Revision as of 20:55, 14 September 2009

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