On Thu, Nov 06, 2008 at 10:42:51AM +0530, Rohit Garg wrote: > You can use sse intrinsics. They are portable c and give you saturated > arithmetic. They are probably limited to 16 bit though. If this is a new project, you might want to consider looking at sseplus, which is an attempt to abstract the various Intel and AMD SSE extensions, so that you can write the code once, and then have the code use the appropriate instructions on the machine (for example, if your machine has the SSE4 or SSE5 instructions, and your operations could use those instructions, you would get the direct instruction, but if not, it would be emulated using the instructions native to the machine) http://sseplus.sourceforge.net/ -- Michael Meissner, IBM 4 Technology Place Drive, MS 2203A, Westford, MA, 01886, USA meissner@xxxxxxxxxxxxxxxxxx
