Capstone disassembly/disassembler framework
Emulator of the ancient 8 bit microprocessor SC/MP 2
An assembler and disassembler for the JVM (Java Virtual Machine)
Tools to work with android .dex and java .class files
A low-power ISA design and simulator for a 2010 IEEE competition
Java classfile assembler/disassembler and interactive low-level editor