NEON-Advanced SIMD vs. SIMD

Hello, I’m new to ARM architecture and was looking to get a better understanding of how it works. Most notably, the Cortex-A series and its DSP functionality. When reading through ARM’s webpage, it often...
NEON SIMD Dn Register and Parallel Operations

Thank you for your reply. A few more questions: Is Dn a 128-bit wide register? Is Dd also a 128-bit wide register? (Referring to the diagram in the original question) Also, the diagram shows 4 parallel...
Understanding ARM NEON instruction

hi i am trying to understand ARM NEON instruction and encountered with vqrdmulh instruction. i am particularly interested in saturation case in instruction i am not getting any case with saturation ....
Partial register dependency neon

I'm having trouble finding any informations on partial neon register dependencies. Take for example the following code: ld2 {v0.16b, v1.16b}[0], [x0] ld2 {v0.16b, v1.16b}[1], [x1] ld2 {v0.16b, v1...
SIMD-NEON Optimization on CortexA7or Cortex A57

Hi, we are experiencing poor performance on Small functions translated to SIMD NEON because of likely latency.I found a guide on http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Software_Optimization_Guide_external...