• Why is there no vector integer divide in SIMD instructions ?
    For vector arithmetic, ADD, SUB, MUL are present for integers, but not DIV. Is that a performance impact ? Does other architectures not have it too ?
  • 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...
  • Coding for Neon - Part 5: Rearranging Vectors
    This blog has been updated and formalized into a guide on Arm developer. You can find it here: Coding for Neon - permutation - rearranging vectors This article describes the instructions provided...
  • aarch64 instruction
    I have a build problem when use aarch64 instruction. I use ds5 for simulation, target CPU: Generic ARMv8-A AArch64 target FPU ARMv8(NEON & Crypto) others use default UMOV w5, v3.h[#2] index...