// IfsOverlays.decl -- declaration for IFS Overlays package // Copyright Xerox Corporation 1980 // Last modified March 1, 1980 3:07 PM by Taft // Derived from OVERLAYS.D, by P. Deutsch // last edited May 17, 1977 4:15 PM // structure OD: // overlay descriptor [ JSR word // STA3JSRI OverlaySave da word // disk address core word // core page (for lock) onstack bit 1 // 1 if referenced from stack firstPn bit 15 // first page # in file ] manifest lOD = size OD/16 structure OEP: // overlay special entry point [ JSRJMP word // JMP @.+1 if present in bank 0, // XJMP b if present in bank b, // STA3JSRI OverlaySave if not present. ODorEP word // overlay descriptor address or code entry point ] manifest lOEP = size OEP/16