What's New in Version 3.0

The Intel Signal Processing Library Version 3.0 now contains more than 200 functions. In this release support for 16-bit integer data type has been added. The Signal Processing Library includes DLLs and static libraries optimized for the Intel486^™ processor, the Pentium^® processor, the Pentium Pro processor, and the Pentium processor with MMX^™ Technology. Approximately 90% of the integer functions have been optimized for the Pentium processor with MMX technology. Because MMX technology accelerates primarily integer arithmetic, the floating-point functions do not use MMX technology. The release notes of the Signal Processing Library, which provide more details, are installed when you download the files.

This release uses MMX technology to accelerate the integer functions within the library. Both a static library and a processor-specific DLL are provided which take advantage of MMX technology. The Signal Processing Library is currently available on the Performance Tool Set CD-ROM. Starting with the Beta 4 release, the Custom DLL Builder utility is available for developers to minimize the memory footprint.

The Library includes an application compatible with Windows* NT*, Windows* 95, and Win32s* that will measure the performance of the library functions on any Intel Architecture-based PC. Source code for the test program and a .mak file are provided should you wish to modify the way the performance is tested to be more relevant to your application.

Release History
Version 1.0 was the first public release of the SP Library. It was originally released to alpha sites in mid-March of 1995 and given general distribution on the IAL June 1995 CD ROM. It consisted of a Pentium-optimized static library form of the functions.

Version 2.0, released in September 1995 added processor-specific, dynamically linked libraries (DLLs). A DLL detects the processor type at the time the DLL is loaded and loads a processor-specific DLL which is optimized for either the Intel486 processor, the Pentium processor, or the Pentium Pro processor.