annotated assembler source for Adventure?

Hi:

A couple of years ago I found a fully-commented assembler source for Adventure for the 2600.  I can't seem to find it any more.  A search of this forum got a hit saying that there is a fully-commented disassembly of Adventure "in the Stella Archives," but all I found there was a BIN.

Does anyone know where that fully-commented assembler source for Adventure might be found?

Thank you.

-Mike