Xref: utzoo comp.sys.amiga.hardware:6719 comp.sys.amiga.audio:258 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!mintaka!snorkelwacker.mit.edu!usc!zaphod.mps.ohio-state.edu!rpi!batcomputer!theory.tn.cornell.edu!riley From: riley@theory.tn.cornell.edu (Daniel S. Riley) Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.audio Subject: Re: CIA A timer... Message-ID: <1991Feb28.161723.16052@batcomputer.tn.cornell.edu> Date: 28 Feb 91 16:17:23 GMT References: Sender: news@batcomputer.tn.cornell.edu Organization: Cornell Theory Center Lines: 21 Nntp-Posting-Host: theory.tn.cornell.edu In article dlnghrst@telstr.UUCP (David Langhorst) writes: >...Alot of people over on c.s.amiga.audio are concerned with the fact that the >CIA A timer was taken out of the A3000. Most muzik software relies on the CIA >A for it's timing....they are mostly interested in how to cope w/o it, but I >was wondering why it got left out in the first place...why? The hardware is still there. However, the CIA A timer has *always* been reserved to the operating system. Under 1.x, it wasn't correctly allocated by the operating system, so it appeared to be free when it wasn't really. This was a bug, which is fixed in 2.x. To make matters worse, there was a lot of confusion in the early editions of the hardware reference manual over which timers were allocated for what. This was all sorted out a while back, but not before a number of music programs used the wrong hardware timer. -Dan Riley (riley@theory.tn.cornell.edu, cornell!batcomputer!riley) -Wilson Lab, Cornell University -- -Dan Riley (riley@theory.tn.cornell.edu, cornell!batcomputer!riley) -Wilson Lab, Cornell University