Addendum for Flash 5 by Dave. This page aims at describing the Action Codes added in Flash 4 format. These specifications are unofficial and are based on a personal work. Parts of this document are assumptions. The language is based on a stack oriented engine.
Processing is done sequentially.
Therefore, there are positive and negative offsets. The PC equals the next instruction address when executing a current instruction. Before describing the operators and functions, here the encoding of how to push data onto the stack. There are two types of operands. The second type of operand is property.