Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!rutgers!ucla-cs!zen!ucbvax!DOCKMASTER.ARPA!Cothrell From: Cothrell@DOCKMASTER.ARPA Newsgroups: comp.sys.atari.8bit Subject: custom 6502 Message-ID: <870911234252.272896@DOCKMASTER.ARPA> Date: Fri, 11-Sep-87 19:42:00 EDT Article-I.D.: DOCKMAST.870911234252.272896 Posted: Fri Sep 11 19:42:00 1987 Date-Received: Sat, 12-Sep-87 20:35:21 EDT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 8 I assume that the custom 6502 tri-states its address bus when the Antic puts pin 9 (HALT) low. I think I have further deduced that pin 35 of the 6502 is the trigger for the tri-stating. two questions. am I right so far, and is the data bus also tri-stated? thanx, Scott Cothrell Cothrell at Dockmaster.arpa