My first computer was an Olivetti Programma 101 owned by my high school, and I spent many hours learning how to program using it. As chance would have it, it was also the first computer my wife worked with as well - though she only got a few hours. At any rate, I wrote this for my wife's birthday. Those of you who have also used this machine will recognize it immediately.
This program is not typical Tcl. Because our current computers have quite different screen resolutions, I needed to make it resizable, at least to some extent. So I came up with a system to generate a display from a bitmap, and widgets are located by decimal places - .5 would be 50% of the way from the left side, and so on. It also extracts the actual button label from that portion of the image, so I don't need to specify it separately.
This program has been lightly tested, but there are probably still bugs. The worst I've dealt with are actually edit errors that moved widgets to West Succotash, Iowa or someplace because I dinged the table of widget placement data. Hopefully, this version straightens out all of that. It should also be noted there are quite a few new features added to the architecture to make it a little less painful to program, including editing of programs (if you made a mistake in entering the current instruction you could CLEAR and re-enter it, but if you don't notice the error right away and spot it scrolling up while you are entering a different command, well, you lose and you have to re-enter the whole program all over again). Also, the blue buttons represent various extended functions allowing you to display the registers, edit the labels, and so on, and I also added the "rub out" button and the keyboard buffer display. You just had to remember what digits you keyed in with the actual hardware.
Aside from these additions the layout exactly follows the original except for moving the decimal wheel from the right to the left. Oh, well, I guess I'm not allowed to upload that, either. No .exe, no .zip, and no .gif either since I somehow changed the type of the file, whatever THAT means. If someone can help me circumvent these issues?