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T32 instruction width

If you use the .W specifier, the instruction is encoded in 32 bits even if it could be encoded in 16 bits. You can use a diagnostic warning to detect when a branch instruction could have been encoded in 16 bits, but has been encoded in 32 bits. To do this, use the following command-line option when invoking armasm:

armasm --diag_warning 1607

Note

This diagnostic does not produce a warning for relocated branch instructions, because the final address is not known. The linker might even insert a veneer, if the branch is out of range for a 32-bit instruction.

See also

Concepts
Reference

armasm Reference Guide:

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