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- Short: Speed up your mathieee libraries!
- Author: gnikl@informatik.uni-rostock.de (Gunther Nikl)
- Uploader: thor@math.tu-berlin.de (Thomas Richter)
- Version: 40.2
- Type: util/sys
- Requires: Os 2.04, an 68040 or 060, the MuLib 68040/68060.library
-
- ------------------------------------------------------------------------------
- Note: Releases 40.2 and up are maintained now by Gunther Nikl (see above).
-
- The reason for me (Thomas) for no longer supporting FastIEEE is that the
- 45.xx releases of the math libraries that come with Os 3.9 have FastIEEE
- support build-in and hence don't require this patch anymore.
-
- Thanks, Gunther, for continuing support of FastIEEE!
- -----------------------------------------------------------------------------
-
- FastIEEE replaces the math library functions, i.e. entries of the
- mathieeesing/doub/bas/trans.libraries by routines which are more adequate for
- a 68040 or 68060 processor. The advantage of the new routines is that they
- no longer use FPU instructions that have to be emulated in software for the
- 68040 or 68060 processor. Hence, these routines go no longer thru an
- "emulator trap", are therefore more multitasking friendly and also faster.
- Some measurements have shown that the new IEEE routines provided by this
- program are approximately 1.5 times faster.
-
- NOTE THAT THIS MAKES ONLY A DIFFERENCE IF PROGRAMS REALLY USE THE MATHIEEE
- LIBRARIES.
-
- However, these procedures do not re-implement all the mathematical algorithms.
- Instead, they make use of the "FPSP" routines which are already part of the
- 68040.library or 68060.library. Therefore, a special 68040 or 68060 library
- is required which makes these routines available. Currently, the only
- 68040 library that offers this feature is my 68040.library from the MuLib
- archive. The same applies to the 060 and the MuLib 68060.library. Both can
- be found in the Mu680x0Libs.lha archive on Aminet.
-
- FastIEEE fixes, too, some bugs in the mathieee libraries. IEEEDPCmp() is
- broken and orders some numbers "the wrong way". This fix is also available
- separately. IEEEDPPow() and IEEESPPow() are broken and return non-sense for
- special arguments.
-
- 40.2 and up also fix the broken FPU initialization of the v37 math libraries,
- and repair the broken workbench startup code of the 40.1. Thanks, Gunther!
-
- ------------------------------------------------------------------------------
-
- This file is part of the MMULib distribution. To find out more about the
- mmu.library and its goals, download util/libs/MMULib.lha.
-
- ------------------------------------------------------------------------------
-
- Quick installation notes:
-
- - Copy LIBS/mmu.library to LIBS:
- - Copy LIBS/680#?0.library to LIBS:
- - Optionally: Read the MMU.guide how to patch SetPatch and how
- to install the 680x0.library.
- - Copy ENVARC/MMU-Configuration to ENVARC:
- - Copy Shell_Only/FastIEEE to C:
- - Run FastIEEE in your startup sequence behind (!) SetPatch
-
- ------------------------------------------------------------------------------
-
- The THOR-Software Licence (v2, 24th June 1998)
-
-
- This License applies to the computer programs known as the "mmu.library",
- the "680x0.library", the "68040.library V40" and "FastIEEE". The "Program",
- below, refers to such program. The "Archive" refers to the package of
- distribution, as prepared by the author of the Program, Thomas Richter.
- Each licensee is addressed as "you".
-
-
-
- The Program and the data in the archive are freely distributable
- under the restrictions stated below, but are also Copyright (c)
- Thomas Richter.
-
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- commercial organization without written permission from the author to any
- third party is prohibited if any payment is made in connection with such
- distribution, whether directly (as in payment for a copy of the Program) or
- indirectly (as in payment for some service related to the Program, or
- payment for some product or service that includes a copy of the Program
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- However, the following methods of distribution
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- a) the Archive is reproduced entirely and verbatim on such CD-ROM, including
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- Limitations.
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- THE PROGRAM IS PROVIDED TO YOU "AS IS", WITHOUT WARRANTY. THERE IS NO
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- IF YOU DO NOT ACCEPT THIS LICENCE, YOU MUST DELETE THE PROGRAM, THE ARCHIVE
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-
-
- Thomas Richter
-
- -----------------------------------------------------------------------------
-
- So long,
- Gunther Nikl, Thomas Richter (September 2001)
-