Unsupported Extensions

Among the GNU extensions that the CodeWarrior Assembler does not support are:

• Sub-sections (such as " .text 2"). The sub-section number will be ignored.

  As a workaround, you can create your own sections with the .section <name> directive. You may have an arbitrary number of text subsections with the names .text1, .text2, etc.

• Assignment to location counter (such as " . = .+4")

  As a workaround, you can advance the location counter with .space <expr>

• Empty expressions defaulting to 0. Example: ". byte ," equivalent to " .byte 0,0")

  There is no workaround for this. You must always supply the arguments.

• .linkonce directive

  The linker automatically detects logically-identical sections, and uses the following factors to determine whether to keep only one or both in the final image:

  • the binding of the symbols associated with each section
  • the location of these two sections. For example, are the sections in the same overlay or overlay group? Is one in main, and the other in an overlay group?
• .octa

  We do not support 16-byte numbers directly. As a workaround, you may use consecutive .long directives to build a large number in memory.

• .quad

  We do not support eight-byte numbers directly. As a workaround, you may use consecutive .long directives to build a large number in memory.