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 Readme for:  Development » Library » Misc » ibm_perflibs.lha

Ibm_perflibs

Description: PowerPC Performance Libraries
Download: ibm_perflibs.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 331kb
Version: 1.1
Date: 04 Nov 09
Author: IBM Corporation
Submitter: Max "m3x" Tretene
Email: glquake/libero it
Homepage: http://sourceforge.net/projects/ppcperflib/
Requirements: AmigaOS 4.x and a 440 cpu
Category: development/library/misc
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 5119
 
Comments: 0
Snapshots: 0
Videos: 0
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PowerPC Performance Libraries 1.1

This project provides performance optimized library functions for IBM PowerPC
4xx embedded processors. 
The libraries cover floating-point emulation and common C library string and
memory functions.

More information may be found in the Source/doc/ directory.

Copyright (C) 2003 IBM Corporation 
All rights reserved. 

see Source/COPYING.LIB for Redistribution and use

----------   
2009, November 04 - Recompiled for AmigaOS 4.1 by Max "m3x" Tretene

To install, copy the SDK directory over SDK:

To rebuild the OS4.x version:

cd Source
sh
make -f makefile.os4

The script will build only the string and memory library for the 
440 cpu, since the cpu model used on Sam440ep has a hardware FPU unit.

The link and shared libraries will be placed in SDK:Local/newlib/lib

To rebuild the test executables, enter the Source/stropt/test directory and 
type "make". 

Run the executables linked with ppcstr440 library "t_xxx_new" and compare the 
time needed to complete against the executables linked with the standard SDK 
libraries "t_xxx_old"

7.RAM Disk:test> t_memchr_new 
7.RAM Disk:test> echo $_RunTime
5.661525

7.RAM Disk:test> t_memchr_old   
7.RAM Disk:test> echo $_RunTime
17.627331

(the provided run.sh script doesn't seem work on AOS4)

To link your project with the new library, add -lppcstr440 to LDFLAGS.

ATTENTION: the executables linked with this library will work ONLY on a 440 cpu,

and will crash if run on other cpus (ie G3 / G4)
Add a check in you programm to verify the code is running on a Sam440ep, with
ie:
GetMachineInfo() or GetCPUInfo()




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