Warning messages

The warning messages are listed when the -w flag is used with the as command.

Warning messages are listed when the -w flag is used with the as command. Some warning messages are related to instructions with the same op code for POWER® family and PowerPC®:

• Several instructions have the same op code in both POWER® family and PowerPC® architectures, but have different functional definitions. The assembler identifies these instructions and reports warning number 153 when the target mode is com and the -w flag of the as command is used. Because these mnemonics differ functionally, they are not listed in the mnemonics cross-reference of the assembler listing generated when the -s flag is used with the as command. The following table lists these instructions.

  Table 1. Same Op Codes with Different Mnemonics

  POWER® family	PowerPC®
  dcs	sync
  ics	isync
  svca	sc
  mtsri	mtsrin
  lsx	lswx

• The following instructions have the same mnemonics and op code, but have different functional definitions in the POWER® family and PowerPC® architectures. The assembler cannot check for these, because the differences are not based on the machine the instructions execute on, but rather on what protection domain the instructions are running in.
  • mfsr
  • mfmsr
  • mfdec