Source : Free On-Line Dictionary of Computing

cross-assembler
     
        An {assembler} which runs on one type of processor and
        produces {machine code} for another.
     
        There is a set of {6502}, 68xx and {Zilog Z80} and {8085}
        cross-assemblers in {C} by  and Alan
        R. Baldwin.  They run under {MS-DOS} and could be compiled to
        run under {Unix} and on the {Amiga} and {Atari ST}.
     
        See also {fas}.
     
        {(ftp://ccosun.caltech.edu/)}.
     
        (1993-03-10)