Owning the game: Owning the game in its original form does not make downloading a ROM image of it legal, according to the letter of the law.
24-hour rule: Many emulation download sites like to claim that you can keep unlawfully downloaded ROMs for 24 hours and then delete them, and still remain legally compliant with the law.
The only legal images are homebrew games of original content, created by programmers, images released into public domain, or images downloaded with the permission of the copyright holder. ROM images are copyrighted code and are protected by international law. However, emulators can be illegal if they use copyrighted code from the original console, computer, or program. Most emulators are perfectly legal under United States and international law, protected by laws that cover reverse engineering.
6 Handheld Emulators for other Platforms.
5 Console Emulators for other Platforms.
3.6 Super Nintendo Entertainment System.
However, software licensing issues may require emulator authors to write original software that duplicates the functionality of the original computer's bootstrap ROM and/or BIOS, often through high-level emulation. Emulating these on modern desktop computers is usually less cumbersome than relying on the original machine, which may be inoperable. This behavior can have differing degrees of accuracy between emulators.Ī popular use of emulators is to run software and games, often referred to as ROMs, written for hardware that is no longer sold or readily available, such as the Commodore 64 or early Amiga models. Unlike a simulation, it does not attempt to precisely model the state of the device being emulated it only attempts to reproduce its behavior. More information may be found in this article's talk page.Īn Emulator, in the most general sense, duplicates (provide an emulation of) the functionality of one system on a different system by translating calls designed for the target hardware into calls that the host system's software can understand and interpret correctly into an output, so that the software appears to behave identical to the target system.
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