Check out 's', ported and updated by Udo Munk with some help from comp.os.cpm https://github.com/udo-munk/s https://github.com/udo-munk/s Here's a screenshot

Check out 's', ported and updated by Udo Munk with some help from comp.os.cpm https://github.com/udo-munk/s https://github.com/udo-munk/s Here's a screenshot of 's' running on my Z80-in-UE4 emulator on the left, with my own embryonic vi clone on the Z80 unit on the right. https://imgur.com/a/5u5wA https://imgur.com/a/5u5wA