XDE is based on the LDE/ADE engines. It allows you to find length of any x86 instruction, source/destination register usage for most commonly used instructions, and to split/merge instruction to/from some binary structure.
From program's viewpoint, CPU operates with: different types of registers, memory and io-devices. As such, there are introduced "object set" concept, which means bitset of registers/memory/etc. being read/written by each instruction.
