Neon Architecture

What is NEON

ARM NEON technology is a 128 bit SIMD (Single Instruction, Multiple Data)
architecture extension for the ARM CortexTM-A series processors, designed to provide flexible and powerful acceleration for intensive multimedia applications, thereby delivering a significantly enhanced user experience.

Some of the benefits…

• Aligned and unaligned data access allows for efficient vectorization of SIMD operations.
• Support for both integer and floating point operations
• Tight coupling to the ARM core provides a single instruction stream and a unified view of memory, presenting a single development platform target with a simpler tool flow.
• The large NEON register file with its multiple views enables efficient handling of data and minimizes access to memory, enhancing data throughput performance.

Reference:

Portability and Optimizations of GNU Applications for ARM Embedded Linux – http://tree.celinuxforum.org/CelfPubWiki/ELCEurope2008Presentations?action=AttachFile&do=get&target=ARM_EmbeddedLinux_Apps_Port.pdf

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