Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!zaphod.mps.ohio-state.edu!usc!sdsu!ucselx!polyslo!vlsi3b15!batman!nicholaA From: nicholaA@batman.moravian.EDU (Andy Nicholas) Newsgroups: comp.sys.apple Subject: Re: Really small question Message-ID: <742@batman.moravian.EDU> Date: 17 Dec 89 01:13:23 GMT References: <9542@microsoft.UUCP> Organization: Moravian College, Bethlehem, PA Lines: 19 In article <9542@microsoft.UUCP>, brianw@microsoft.UUCP (Brian Willoughby) writes: > Thirdly (did I say there were only a couple of ways? shame on me), you could > use the VERY fast MVP instruction, which is as fast as DMA (for a given memory > speed) if you are willing to move <= 64K in one shot. I thought the cycle times on MVN/MVP were 7 cycles per byte moved. How is that as fast as DMA which is supposed to be (at least what I've always been told) 1 cycle per byte moved? Generally, MVN/MVP is sort of a slow way to do things... or at least thats what most of the GS graphics gurus will tell you. :-) andy -- Andy Nicholas GEnie, AM-Online: shrinkit Box 435, Moravian College CompuServe: 70771,2615 Bethlehem, PA 18018 InterNET: shrinkit@moravian.edu