• NEON: Cortex A7 is 4 times slower than Cortex A8 ?
    I'm seeing Cortex-A7 cycle-timing table here : http://hardwarebug.org/2014/05/15/cortex-a7-instruction-cycle-timings/ For example,  VADD.F32 Dd, Dn, Dm takes 2 cycles VADD.F32 Qd, Qn, Qm takes 4 cycles...
  • In NEON, have the three instructions( VCLS, VCLZ, VCNT), are they all count sign bit?
    In NEON spec: VCLS (Vector Count Leading Sign bits) counts the number of consecutive bits following the topmost bit, that are the same as the topmost bit, in each element in a vector, and places the results...
  • NEON SIMD Register Diagram
    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 looking through the NEON SIMD page on...
  • 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 ....
  • The future of automotive is coming faster than you think
    As excitedly as we talk about it, you’d think the promise of fully autonomous vehicles is right around the bend, just another few miles and we’ll pull into our destination. In truth, we’re not there yet...