Hi
Im using cycloneVsoc (cortex-A9 duel core) with armcc v5.06.
I used to do --fpu = vfpv3 --cpu = cortex-a9 on makefile
Now I want to use neon instead.
Yet I can't use --fpu option to open neon.
Ive confurmed that this port does support the neon.
According to ARMCC v5.06 UG for uVision, --fpu don't have neon option.
Could you please tell me how to start/open it by makefile?
Thank you very much
Reguards
Alex
Stephen Theobald
thank you for the help
as for the reason why, it is the old version project forced me to do that.
The project used an old hardware lib that doesn't support the ARMCC 6.(or massive works need to be done).
I think that's all I need right now, thanks for the hlep.
Sorry, another question for ARMCCv5.06 version
if --cpu=Cortex-A9 and --fpu=VFPv3, is that equal to --cpu=Cortex-A9.no_neon?
No, they are not equivalent.
Also, I should mention that if you wish the compiler to generate Neon instructions, you should add the --vectorise option.
Without this, it can still use libraries or asm code that contain Neon instructions.