Path: utzoo!attcan!uunet!mcsun!unido!laura!heike!klute From: klute@heike.informatik.uni-dortmund.de (Rainer Klute) Newsgroups: comp.sys.atari.st Subject: Re: How can I find current DTA address w/o using TRAP #1? Message-ID: <1990Oct8.095221@heike.informatik.uni-dortmund.de> Date: 8 Oct 90 08:52:21 GMT References: <5429@bdt.UUCP> <1990Oct6.030223.10558@murdoch.acc.Virginia.EDU> Sender: news@laura.UUCP Reply-To: klute@heike.informatik.uni-dortmund.de (Rainer Klute) Organization: University of Dortmund, FRG Lines: 18 In article <1990Oct6.030223.10558@murdoch.acc.Virginia.EDU>, gl8f@astsun9.astro.Virginia.EDU (Greg Lindahl) writes: |> >The current process' DTA address is recorded in the basepage which can |> >be derived from the act_pd system variable (this in turn is recorded |> >in the sys_base (the first few bytes after the ROM-start) for TOS |> >versions >= 1.2). |> |> But I thought this is an "unofficial" way of finding the DTA, so it |> may break someday. I noticed that the DTA entry in the basepage is 0x00000000 in TOS 1.4, which does not seem to be a useful DTA address. -- Dipl.-Inform. Rainer Klute klute@irb.informatik.uni-dortmund.de Univ. Dortmund, IRB klute@unido.uucp, klute@unido.bitnet Postfach 500500 |)|/ Tel.: +49 231 755-4663 D-4600 Dortmund 50 |\|\ Fax : +49 231 755-2386