Originally Posted by shattered
Someone asked Haze about emulation status of terminal that Tetris originally ran on -- http://mamedev.emulab.it/haze/2012/05/31/emulation-status/#comment-22334

It's the 15IE-00-013, and is not emulated. There's a technical manual, not sure if ROMs are already dumped.

Program ROMs (three versions) have been dumped [1], and disassembly looks sane [2]. Now to write CPU core...

[1] http://zx.pk.ru/showpost.php?p=577018&postcount=21
[2] https://gist.github.com/shattered/4971416