The assembler supports a set of extended mnemonics and symbols to simplify assembly language programming. All extended mnemonics should be in the same assembly mode as their base mnemonics. Although different extended mnemonics are provided for POWER and PowerPC, the assembler generates the same object code for the extended mnemonics if the base mnemonics are in the com assembly mode. The assembly mode for the extended mnemonics are listed in each extended mnemonics section. The POWER and PowerPC extended mnemonics are listed separately in the following sections for migration purposes: