Parallel OS, with GUI, Terminal, OO Assembler, Class libraries
multi-platform cross assembler for 6502/6510/65816 cpu
An assembler for the legendary 6502 processor and it's derivatives
C compiler and dev kit for the z80 with assembly language libraries.
A set of tools related to assembly language programming.
Z80 shared library including some nice test-projects
Scripting engine for Pascal compilers.
Emulator of the 8-bit computers Sharp MZ-800 / MZ-700
Very fast classes for working with Dynamic Arrays in Delphi and C++
A tool for generating memory maps for low-level and embedded systems.
Assembles M6800 and 6801 assembly language source code. (and Forth)
ATasm is a 6502 command-line cross-assembler.
BeaEngine disasm project
muda.pl - MQ unified data assembler
A machine code manipulation library for Intel 64 and IA-32.
Cross-platform 6502 assembler
A Java VM for ARDUINO and other micros using the leJOS runtime.
A UNIX-like kernel for the i386 architecture