ARM Technical Support Knowledge Articles

Is it possible to do a read-modify-write of a variable using the DAP Macro Language code supported by CoreSight Integration Kits, e.g. using DAP_READ_AP / DAP_WRITE_AP?

Applies to: Debug and Trace

Answer

No. It is not possible because the DAP Macro Language only supports writing hard-coded values. All you can really do with the read values (e.g. using GET <var>) is capture them in logs, test them, or print them.

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