INFO: LIBMOTO for PowerPC May Improve Application Performance

Last reviewed: October 8, 1997
Article ID: Q164950
The information in this article applies to:
  • The C Run-time (CRT) included with: - Microsoft Visual C++, 32-bit Editions, version 4.0

SUMMARY

Motorola has made available a static library, LIBMOTO, which may improve performance of some PowerPC applications built using Microsoft Visual C++. Linking with LIBMOTO replaces the following C Runtime Functions:

   * cos                    * pow
   * exp                    * sin
   * log                    * sqrt
   * log10                  * strcmp
   * memcpy                 * strlen
   * memmove                * strncmp

The memory and string functions have been hand-tuned in PowerPC assembly language for high performance. The math functions contain some tables and algorithms that are proprietary to Motorola. Applications that make heavy use of the above CRT functions may see an improvement in performance.

MORE INFORMATION

LIBMOTO was originally released as part of the Motorola C/C++ SDK. Motorola is making LIBMOTO available as a stand-alone product free of charge to encourage PowerPC development. LIBMOTO may be downloaded from Motorola's Website at:

   http://www.mot.com/SPS/PowerPC/library/fact_sheet/libmoto.html


Additional query words: PowerPC CRT
Keywords : CRTIss VCPowerPC kb3rdparty
Version : 4.0
Platform : NT WINDOWS


THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: October 8, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.