VDE ist Wordstar kompatibel und gibt es für CP/M und MSDOS
https://groups.google.com/g/vde_editor
Welcome to the VDE Editor group.
The group is devoted to Eric Meyer's VDE, a freeware text editor and word processor for MS-DOS and Windows console mode. Messages can be viewed online here, or you can subscribe via email.
VDE uses the WordStar command set, and reads and writes WordStar, Word Perfect, Microsoft Word, and RTF documents, as well as plain text files. It includes sophisticated formatting, flexible printer support, a powerful macro facility, and unique editing features.
VDE itself, usage tips, third-party utilities and macro packages, and links to other DOS software are available on the VDE site:
http://sites.google.com/site/vdeeditor
MSDOS
CP/M wobei der ZDE die verbesserte Bersion ist.