imap.md

Initial Map

The purpose of the initial map is to point us to the active memory map chunk (as the memory map can be replaced/updated by Director and get a new address). The initial map chunk will always reside at the same address in a Director file, namely 0x0c.

The FourCC of the chunk is imap.

Structure

The initial map chunk is saved in little-endian.

The structure of the chunk is:

Ref.	Bytes	Type(s)	Name	Description
	4	uint32	?mmap‑count	TODO: Can there be more than one memory map if we have >32k resources?
	4	uint32	mmap‑address	The address of the active memory map chunk.
	4	uint32	?version
	12			Unknown.