The toolchain includes support for all ARM architectures from ARMv4™ onwards that are currently supported by ARM, including ARM NEON technology. All architectures before ARMv4 are obsolete and are no longer supported.
You can specify a target processor or architecture to take advantage of extra features specific to the selected processor or architecture. To do this, use the following command-line options:
You can specify the startup instruction set, ARM or Thumb,
options. Also, you can force an ARM-only instruction set with the
The compilation tools provide support for mixing ARM and Thumb code. This is known as interworking and enables branching between ARM code and Thumb code.
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