Undocumented 8086 Opcodes, Part I | OS/2 MuseumThis is a guest post by Raúl Gutiérrez Sanz This multi-part document is about undocumented 8086 processor opcodes and their behavior. Most of the document will likely apply to the 8088 processor as well, but this has not been verified. It doesn’t apply to any other processor/controller, like the 80186, 80286 or newer, as they use the undocumented 8086 opcodes to implement new instructions. For the
