In T32 code, some instructions, for example a branch or
can be encoded as either a 32-bit or 16-bit instruction.
the size of the encoding as described in Instruction width
selection in T32.
armasm can issue warnings when an instruction
is assembled to a 32-bit T32 instruction where a 16-bit T32 instruction
could have been used. To enable this warning, use the following command-line
option when invoking
armasm --diag_warning 1813