daudzoss

EmaCsixteen. EmaC=s is an alternate screen editor for the Commodore 16 and Plus/4 with the Emacs bindings, GPLv3 with 6502 source

pic16zos. PIC16 zOS is a lightweight, small-footprint, preemptively multitasking RTOS for Microchip Technology's entire enhanced midrange 8-bit PIC microcontroller family (not to be confused with a variation on the same name that requires 1e9 to 1e12 the system resources)