Rope Integrated Development and Simulation Environment (IDSE) for the IBM 1401.

Focal interpreter by David Pitts http://www.cozx.com/dpitts/

Oberon-07 translator

Emulator for the Oberon RISC machine

HI-TECH Z80 CP/M C compiler v3.09 and updates

Reconstruction of intel 8080 tool chain inc. PLM80, ASM80, LINK80, LOC80, LIB80 and ISIS 4.1

Source code to tools used in Intel80Tools

AncientXinu: Early Xinu / Xinu68k releases

PDP-11/70 CPU core and SoC

BBN's TENEX BCPL

Source in Pascal, Modula-2 and Oberon for PL/0 and Oberon-0 from N. Wirth's books about Compiler Contruction.

Actively maintained fork of Peter Miller's UCSD P-System tools - Virtual machine

Critical Mass Modula-3

Компилятор "СтранниК Модула-Си-Паскаль"

GPM/CLR is an implementation of the historical Gardens-Point Modula-2 compiler for the .NET runtime. It provides an example of how a non-typesafe, unmanaged data compiler may be implemented on the …

MOCKA Modula-2 Compiler System, originally by GMD

Game for the Atari 2600 console inspired by Marble Madness and the wooden marble maze puzzles. Includes simultaneous two player mode, 18 levels, background music, hidden areas.

RunCPM is a multi-platform, portable, Z80 CP/M 2.2 emulator.

Restoration of the Z80 MicroMumps for CP/M

STOS interpreter/compiler and reconstructed extensions

Reconstructed sources of ACSpro version from Nov 12 2003

Reconstructed sources of ACSpro

A cross-assembler for the 6502 series of microprocessors.

Free monospaced font with programming ligatures

Complete source to Alice Personal Pascal, including Atari ST version with GUI.

terminal wrapper library for ncurses with smooth 256 color handling, termbox, or a virtual terminal on SDL

MAME

Prime 50-Series Emulator