GNU assembler
gas

   (GAS) A Unix assembler for the GNU project.  Many CPU
   types are handled and COFF and IEEE-695 formats are
   supported as well as standard a.out.

   Current version 2.2 ported to Sun-3, Sun-4, i386,
   386BSD, BSD/386, Linux, PS/2-AIX, VAX, Ultrix,
   BSD, VMS.

   The assembler has been merged with GNU Binutils.

   E-mail: .

   (1995-04-18)