/sys$common/syshlp/helplib.hlb CC, Messages, ASMRAWREG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <text> uses <text> before it is defined

 Description    The asm directive parser has noticed that an
                instruction uses a register as a source before it is
                given a value.

 User Action    Correct the asm directive.