• reason for ARMv8 EDSCR err bit set
    Hi, I'm working on a project which is for debugging cortex-a53 through Jtag interface. The Jtag clock TCK is set to 300kHz which is pretty low, and I can properly read back debug registers such as EDSCR...
  • Why does FPU performance differ in AArch64 and AArch32 with Cortex-A53?
    Hello experts, I have come to having a question. VFP Benchmark is a benchmark application which was made by a certain Japanese in order to measure ARM VFP performance especially for ARMv7-A and ARMv8...
  • New developer guides for AArch64
    We (Arm's Support and Content Services teams) have been working on creating a Developer Guide for AArch64. They're aimed at anyone wanting a bare-metal focused introduction to the Armv8-A architecture...
  • luajit compilation on aarch64
    Hi, I am trying to build luajit on aarch64 platform. I have downloaded source from https://github.com/cbaylis/luajit-aarch64 . I am getting the below error when I compilled the source. root@node...
  • MPIDR and affinity
    Hi there, I am learning AARCH64 and would like to know about the mpidr_el1 register and affinity levels. I have read the relevant sections in the programmer's guide but I am just not able to understand...