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Arm Compiler armasm User Guide : --fpu=name


Specifies the target FPU architecture.



Where name is the name of the target FPU architecture. Specify --fpu=list to list the supported FPU architecture names that you can use with --fpu=name.

The default floating-point architecture depends on the target architecture.


Software floating-point linkage is not supported for AArch64 state.


If you specify this option, it overrides any implicit FPU option that appears on the command line, for example, where you use the --cpu option. Floating-point instructions also produce either errors or warnings if assembled for the wrong target FPU.

armasm sets a build attribute corresponding to name in the object file. The linker determines compatibility between object files, and selection of libraries, accordingly.