Short: Speed up your mathieee libraries! Author: gnikl@informatik.uni-rostock.de (Gunther Nikl) Uploader: thor math tu-berlin de (Thomas Richter) Type: util/sys Version: 40.2 Requires: 68040 or 060, the MuLib 68040/68060.library Architecture: m68k-amigaos >= 2.0.4 ------------------------------------------------------------------------------ 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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THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. IF YOU DO NOT ACCEPT THIS LICENCE, YOU MUST DELETE THE PROGRAM, THE ARCHIVE AND ALL DATA OF THIS ARCHIVE FROM YOUR STORAGE SYSTEM. YOU ACCEPT THIS LICENCE BY USING OR REDISTRIBUTING THE PROGRAM. Thomas Richter ----------------------------------------------------------------------------- So long, Gunther Nikl, Thomas Richter (September 2001)