How to understand ARMv8 'SEVL' instruction in spin-lock?

hi experts, ARMv7 spin-lock use 'WFE' instruction to wait for lock release and use 'SEV' in spin-unlock to notify all cores. but ARMv8 use 'SEVL; WFE' instructions in spin-lock, and no...
float behaivior on AARCH64

Hello, forgive me if my question is a litte bit weak in content and linguistic. I'm only a Hobbyist and english is not my nativ. I'm trying to compile an App from Einstein@Home for AARCH64 using GCC....
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...
aarch64 kernel using aarch32 page tables

Hi ! I'm trying to update my custom kernel, working with short or long descriptor in armv7a to a target supporting armv8. My current setup uses TTBR0 to point to the PL0 page table and TTBR1 to point...