Strange warning

[PitchPitch]

Hi everyone !

I have a strange warning with NASM (64 bit).

NASM say "warning: signed dword value exceeds bounds [-w+number-overflow]" with this instruction :

Code: [Select]

and rcx, 0xFFFF_FFFF
and this is my command line :

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nasm -felf64 File.asm -Ox -Wall -o Output.o
How can I fix it ?

Thank you !