• Embedded assembly function problem

    Hello all,

    I wrote end embedded assembly function for an ARM Cortex A9 (the specific device is Zynq, from Xilinx) as follow

    float my_fun(float x)

    {

                    asm volatile ("vdup.f32 d0, r0                     \n\t");…

  • HI,why the VFP vector mode can not be used in cortex-a series processors?

    HI,why the VFP vector mode can not be used in cortex-a series processors?

  • question about arm cortex-a9 neon optimization(4x4 matrix mul)

    =======================================

    for matrix 4 by 4 multiplication, neon programming is slower than natural code with

    auto-vectorization option. (Xilinx Zynq 702 EVM board - cortex a9 with gcc complier option

    -mfloat-abi=softfp -mfpu=neon-fp16 -ftree…

  • Arm Neon not vectorising nested loop

    Hi,

    I am using A9 Processor on Zynq Board running a test project with neon and simd options enabled . In my code i have nested loops which is not vectorised and below is the build log 

     not vectorized: multiple nested loops. 

    Can anyone help me on thi…

  • De-merits in using Cortex A9 for single core processor

    Hi Experts,

    A8 is meant for single core and A9 is for multi-core based.

    Consider in case of SoC is build with single core of A9 and A8 how we could compare both in terms of some metrics/parameters like power/speed ?