Sorry to necropost, but I'm VERY interested in using your Little Man Computing app with my students this term, and I suspect others may too.
I'm switching to teaching GCSE Computing this year, from ICT. One of the programming research components has students use LMC to investigate 'bottom line' computing, learning how computers shift bits around, seeing how memory is used at low-level, etc. Unfortunately, the LMC app they recommend:http://www.atkinson.yorku.ca/~sychen/research/LMC/LittleMan.html
doesn't work very well in any of my (Mac) browsers, specifically the text boxes are too small and only display one character, not much use when the box contain '901' and all I can see is a centre '0'. Definitely not good for students putting screenshots into reports...
So I went looking for an alternative LMC app... and there aren't any! The *idea* is well documented, but implementations are thin on the ground. Yours is excellent, especially the syntax colouring and single-stepping with line highlight. Unfortunately, I'm new to Java and can't figure out how to get this to be a standalone app, even though you kindly posted the source. I downloaded Eclipse, did the intro-tutorials, then pasted your code as a new project, but both 'checkAddress' and 'execute' are marked with red crosses, I *think* because 'EmulatorCrash cannot be resolved to a type'. Do I need to load a library/module/something to make this work? I did google 'EmulatorFeedback' and 'EmulatorCrash' but the only results point back to your page, which makes me think this is something specific to your code that I'm missing.
Alternatively, can I download the finished .jar file somehow? Not as good as having the source to go through with the students, but better than having to have them load the LMC from the discussion page!
PS No offence, but the anti-spam sign-up requirements for this BB are mighty steep for someone just wanting to ask a casual question!