Self-hosting metacompiled Forth, bootstrapping from a few lines of C; targets Linux, Windows, ARM, RISC-V, 68000, PDP-11, asm.js.

PDP-11/70 CPU core and SoC

PDP-11 emulation

A PDP11/40 emulator that will run Unix v5/6

Memory system and UART implemented on Tang Nano 20K for DEC DCJ11 PDP-11 Processor

UKNCBTL is emulator of Elektronika MS 0511 (UKNC), soviet computer based on two PDP-11 compatible processors.

PDP-11 emulator in Python 3, running Unix V6

Ultra Portable, Small, Baremetal Forth for various processors

C++ library of assembler / disassembler that can run on embedded system

Compiler for PDP-11, written in Python

Updates, Information and Software for the PDP-11 RSTS/E V10.1 Operating System

PDP-11 operating system.

XXDP was, and remains, the PDP-11 diagnostic operating system. This project attempts to recover XXDP sources and documents.

BKBTL emulator, Win32 version.

BKBTL emulator, Qt version.

AncientXinu: Early Xinu / Xinu68k releases

uckermit: μC‑Kermit (μCKermit, micro‑C‑Kermit, microkermit) is a minimalistic Kermit implementation for small, embedded, or resource constrained systems (CP/M, PDP‑11, etc.)

Linux Qt port of one of the best BK-0010/11 emulator from http://gid.pdp-11.ru/ with some improvements. Not finished yet. Work in progress...

UKNCBTL emulator, Qt version.

PDP-11 operating system by David Retz.