AltiVec Technology Programming Environments Manual (AltiVec PEM) is a reference guide for programmers. It contains a description for each instruction and information to help in understanding how the instruction works. You can obtain a copy of the AltiVec PEM through the Motorola AltiVec site on the World Wide Web, at
http://www.mot.com/SPS/PowerPC/AltiVec/facts.html
Apple provides support for developers who are starting to use the AltiVec technology. Documentation, development tools, and sample code are now available on the World Wide Web, at
http://developer.apple.com/hardware/altivec/index.html