why? first of all they all can decide themselves what they want to code and second of all this not only shows how much people want something like that, but also motivates coders by showing them that their work would really get the appreciation it deserves
It certainly is, but with growing processing powers emulating a console of two generations ago is not something special. It's more than manageable and just a matter of time till someone dedicates his talents in this direction. For older consoles it is quite some challenge to make emulation of similarly powered machines possible and therefor should be supported whenever the result is capable of working near full speed
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