Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!overload!dillon From: dillon@overload.Berkeley.CA.US (Matthew Dillon) Newsgroups: comp.sys.amiga.programmer Subject: Re: Mouse blanking Message-ID: Date: 9 May 91 18:22:35 GMT References: <9107@crash.cts.com> Organization: Not an Organization Lines: 26 In article Frank.Neumann@arbi.informatik.uni-oldenburg.de (Frank Neumann) writes: >Hi, >> if (doipcmsg(0x81) == 0) { >> WaitTOF(); >> OFF_SPRITE; >> custom.spr[0].dataa=0; /* sprite0 DMA */ >> custom.spr[0].datab=0; /* data register */ >> sproff = 1; >> } > >So - before switching off sprite DMA, he waits for the top of the frame - >in this time there is for sure NO sprite DMA, so it is a safe way - however, Actually, it's the custom.spr[0] ... stuff that does it. WaitTOF() doesn't guarentee anything but exists to reduce 'glitches'. >So long, >Frank -Matt -- Matthew Dillon dillon@Overload.Berkeley.CA.US 891 Regal Rd. uunet.uu.net!overload!dillon Berkeley, Ca. 94708 USA