1.1 About the ARM Compiler toolchain assemblers

The ARM® Compiler toolchain provides different assemblers.

They are:

  • A freestanding assembler, armasm.
  • An optimizing inline assembler and a non-optimizing embedded assembler built into the C and C++ compilers. These use the same syntax for assembly instructions.


Be aware of the following:
  • Generated code might be different between two ARM Compiler releases.
  • For a feature release, there might be significant code generation differences.


The command-line option descriptions and related information in the individual ARM Compiler tools documents describe all the features that ARM Compiler supports. Any features not documented are not supported and are used at your own risk. You are responsible for making sure that any generated code using unsupported features is operating correctly.
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