ARMV7a: selected processor does not support requested special purpose register

Richard Earnshaw Richard.Earnshaw@foss.arm.com
Mon Oct 3 15:48:16 GMT 2022



On 03/10/2022 15:41, Umesh Kalappa via Binutils wrote:
> Hi All,
> 
> We have problem to compile the following asm
> https://godbolt.org/z/hejMPoW69
> 
> and asm error out with the subject message .
> 
> Is mrs for float special register not valid on cortex-a9 ?
> 
> Thank you
> ~Umesh

that's because the instruction you want is

vmrs r4, fpscr

R.


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