geof@imagen.UUCP (Geoffrey Cooper) (01/10/86)
I am in need of an implementation of floating point routines for the 68000.
Actually, the greatest need is for just the trig functions, following IEEE
floating point (I have the rest, but the trig functions are implemented
poorly). They could be implemented in assembly language or C.
- Geof Cooper
Imagen
{decwrl,saber}!imagen!geof
imagen!geof@decwrltgl@a.sei.cmu.edu (Tom Lane) (01/15/86)
In <181@imagen.UUCP> geof writes: > I am in need of an implementation of floating point routines for the 68000. > Actually, the greatest need is for just the trig functions, following IEEE > floating point (I have the rest, but the trig functions are implemented > poorly). They could be implemented in assembly language or C. If you're willing to write the code yourself, there is a truly outstanding book called "Software Manual for the Elementary Functions", by Wm Cody & Wm Waite, Prentice-Hall, 1980. It gives flowcharts, coefficient values, and extensive discussion for implementation of first-rate routines for the basic transcendental functions. You can write code in assembly, C, or whatever given the info in the book; you do need a pre-existing set of basic arithmetic routines (+,-,*,/) which should be IEEE quality in order to get good results. tom lane (lane@a.cs.cmu.edu on ARPA)