I am using ARMv8 GCC compiler(aarch64-none-elf-gcc) for my bare metal application on ARM cortex a53. I am using neon intrinsics with plain C in my code so I would like to ensure to use all optimization option available for this compiler.
I tried -mfpu…
I want to what exactly is arrangement specifier in arm assembly instructions.
I have gone through ARM TRMs and i think if it is size of Neon register that will be used for computation
for e.g. TBL Vd.Ta, {Vn.16B,Vn+1.16B }, Vm.Ta
they mentioned Ta to…
Hi everyone,
As the title states - I've had issues reproducing flush-to-zero (FTZ) using the NEON intrinsics provided in the 'arm_neon.h' header. For test purposes I'm using an iPhone 6 with an ARMv8-A dual-core ('Twister') CPU.…
Hi Experts,
I'm reading white paper for ARMv7 and ARMv8.
but when i reading cache part and memory re-ordering, i have silly questions.....
Suppose there are below instructions..
Core A:
STR R0, [Msg]
STR R1, [Something…
In my day job, I work in the Arm Development Solutions Group, developing Arm Compiler and its supporting tools. In my spare time, I’m also the lead developer of the free SSH client PuTTY.
Recently, Windows on Arm has been making a splash, so last…
Hi all,
It is a well known fact that performing an aligned vector load with an unaligned memory address should lead to segmentation fault.
However, when I do try to run code segment below using the same, i do not see any segmentation fault.
---------…
现在想优化arm cpu 的运算能力，看到这两个库 ne10 和ACL，如果只针对cpu（比如A9和A53），那个库的运算性能更好？
题外话，NE10和ACL 的定位和区分度？
Today at Hot Chips in Cupertino, I had the opportunity to present the latest update to our Armv8-A architecture, known as the Scalable Vector Extension or SVE. Before going into the technical details, key points about Armv8-A SVE are:
The ARM Cortex-A mobile application processor product line spans several generations and three main product tiers. Developers and SoC designers experienced with one or more of the newer ARM ARM Processors benefit from an…
