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sdltrs is a Radio Shack TRS-80 Model I/III/4/4P emulator. It has been ported from Tim Mann's excellent X-Windows UNIX emulator xtrs. Instead of using the X-Window system for graphics, it uses the portable SDL library.

Why did I write another emulator? Several reasons. First, and foremost, there was no TRS-80 emulator available for Mac OS X. Since I am the author of Atari800MacX, which is based on libSDL, it made it easy for me to make a TRS80 xtrs port based on SDL, so it would run on Windows and Linux as well as Mac OS X. Second, sdltrs provides a text menu based GUI, which is more user friendly interface than the interface xtrs more...


Mac OS X 10.4 or later

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Mathgeek Member IconComment-9

Excellent!! A real blast from the past. I was able to locate and run TRS-80 software I have not used since the late 70's. Anyone remember Android Nim? How about LDOS or muMath? Ah, the good old days...

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Version 1.0
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Current Version (1.x)


Downloads 854
Version Downloads 853
License Free
Date 20 Sep 2009
Platform OS X / PPC 32 / Intel 32
Price Free