Xref: utzoo comp.sys.m68k:1550 sci.electronics:10882 Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!helios!helios.tamu.edu!jgabriel From: jgabriel@mtecv2.mty.itesm.mx (Juan Gabriel Ruiz Pinto) Newsgroups: comp.sys.m68k,sci.electronics Subject: 68000 <-> 68881 rutines Message-ID: Date: 25 Mar 90 21:36:04 GMT Sender: usenet@helios.TAMU.EDU Followup-To: comp.sys.m68k Distribution: comp Organization: Instituto Tecnologico y de Estudios Superiores de Monterrey Lines: 30 Hi, I'm trying to install a FPCP (Floating Point Co-processor) 68881 card to a 68000 based kit. I made the card, but when I read the 68881 manual I saw that I need some special protocol to comunicate the 68000 with the co-processor. I don't understand so very well that mechanism, the manual talks about a trap routine that hands the protocol. I have some MACROS to do some operations, but I think that this is no so very efficient, because I have the protocol included in all the MACROS. Can anybody help me with that? I'm looking for the trap routine, is there some public domain routines to use the co-processor? Can anybody explain me the mechanism of the trap routine? Suggestions are welcome! Thank's in advance! -- ***** Greetings from Mexico !! ***** Juan Gabriel Ruiz Pinto Internet: Ing. Sistemas Electronicos jgabriel@mtecv2.mty.itesm.mx I.T.E.S.M. Campus Monterrey