trantow@csd4.milw.wisc.edu (Jerry J Trantow) (01/06/89)
[Eat this ] Could someone please explain how the IEEE libraries are implemented and how operation differs with an 881 or 020. Motorola literature discusses a macro and exception method of implementing the 881 interface. Do the IEEE libs contain F instructions or will an 020 equipped Amiga still interface to the 881 as a peripheral?? _______________________________________________ Someday I will get around to a fancy signature, JJT
dale@boing.UUCP (Dale Luck) (01/07/89)
In article <256@csd4.milw.wisc.edu> trantow@csd4.milw.wisc.edu (Jerry J Trantow) writes: >[Eat this ] > >Could someone please explain how the IEEE libraries are implemented and >how operation differs with an 881 or 020. The 1.3 ieee libraries use 2 different methods when talking to an 881. If there is an 020/881 set up as a coprocessor the ieee libraris use the F-line instructions. If there is 680x0 and an 881 as a memory mapped io device then the ieee libraries will talk to the chip as a peripheral device spoon feeding and extracting the numbers. -- Dale Luck GfxBase/Boing, Inc. {uunet!cbmvax|pyramid}!amiga!boing!dale