Notepad+4 CPC edition v1 rev.6 (bzipped dsk, 11K). This is a lightweight and simple text editor written in Basic for AMSDOS. It supports the work with any text files. It may edit, in particular, a text with any line length. Just RUN"NP4. Screenshots.

32/64-bit Xlife ported to 8 bit world!

The number π calculator is here (the sources are included).