• Slow, slow , slow TCPNet ...
    Hi, I'm using a MCB2368 board with both RTX and TCP Net over ethernet. I have a single tcp task that manages all my socket. The other task is a FTP server connected to a SD memory card and communicates...
  • DS-5 configuration for SIMD implementation on NEON
    Hello to the community, I have a fresh installation of DS-5 Ultimate and I want to run some SIMD code targeting Cortex-A8 (In debug mode). I have done this before years but I don't remember the Step...
  • Non-Temporal Writes in SIMD Instruction set
    Note: This was originally posted on 21st March 2011 at http://forums.arm.com X-86 platform supports what they term as non-temporal writes. This just means stores from the registers to memory that do not...
  • x86 _mm_sign_epi8(_m128i a,_m128i b) intrinsic NEON equivalent
    I have the x86 intrinsic (_m128i _mm_sign_epi8(_m128i a,_m128i b)) it performs the following task: for (i = 0; i < 16; i++) { if (b[i] < 0) { r[i] = -a[i]; } else if (b[i] == 0) { r[i] = 0; } else { r...
  • vaddlvq_s8 is not included in arm_neon.h
    When I tried to compile arm neon c intrinsics program on raspberry pi 4 as follows gcc -march=native -mfpu=neon -mneon-for-64bits warning: implicit declaration of function ‘vaddlvq_s8’; did you mean...