Zap-like editor only for BBC-Basic, with utilities.
It was begun as an utility to convert assembler-listings into a graphical form. When programming in (ARM) assembler, when you want to keep as many variables in registers (for speed) you are likely to end up with lots of variables for which you have to find space in registers. Typically 50 variables for 12-14 registers. A graphical representation allows you to easily see which variables you can combine, and where some registers can be pushed on stack to make place for more variables. It looks a bit like the music notation system Klavarskribo. To make it more useful an editor was built around it with the usual text manipulation features, and some utilities like cross-referencer, program cruncher (variablename- shortening and converting into a lzw-compressed executable), simple program check, and a few more.