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- FPU-Mathtrans.Library V1.1 28.1.1990
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- (c) by Heiner Hückstädt
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- This library was written for all people, who own the Motorola
- floating point unit MC 68881, MC 68882 or MC 68040 (haha) and
- never use it, because most of the software, written on the
- Amiga make use of the Fast Floating Point format, which is
- absolutely undigestible for the numeric coprocessor. (It's a shame !!)
- Only a few software developers spread a recompiled FPU version, too.
-
- This library is to increase the performance of that software products,
- who take much use of the FFP-transcendental functions (Sin, Cos, Pow, etc.)
- like Distant Suns (very very good program, but where is the 68020/881 version)
- or others.
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- How to use this library
- -----------------------
-
- You must have a 68020/68030 - 68881/68882 Turboboard !
- If so, copy this library to your LIBS: directory
- The old mathtrans.library will be deleted
-
- Realisation
- -----------
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- The FPU MC68881/82 knows for every function
- (expect SPTieee, SPFieee and SPPow) a hardware
- instruction like fsin.x, fcox.x, flogn.x ,etc.
- But all inputs for the mathtrans.library and the
- mathffp.library come in this #$-®©¤þ FFP-format,
- so every input (and output, too) has to be converted
- from FFP to IEEE single precision and back using SPTieee
- and SPFieee. (Excuse me Commodore, but these functions were
- stolen from your original mathtrans.library.)
-
- Profit
- ------
-
- On my configuration (68020 7Mhz, 68881 25Mhz, no 32 bit-ram)
- my genius BenchMark shows a speed increase of 7.1 overall.
- This may differ due to your money, megahertz and megabytes.
-
- -----------------------------------------------------------------------------
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- THIS PROGRAM IS IN THE PUBLIC DOMAIN
-
- Permission is hereby granted to distribute this program,
- source, and documentation for non-commercial purposes,
- so long as the copyright notices are not removed.
- This program may not be distributed for profit without the
- permission of the author.
-
-
- Comments, questions, donations, bugs due to this library may
- come to
-
- Heiner Hückstädt
- Gellertstraße 12
- D-5090 Leverkusen 1
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- That's all, hope you can use it
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