AS(1)                                                                    AS(1)



NAME
       as - VAX-11 assembler

SYNOPSIS
       as  [  -a1-16  ]  [  [  -d124 ] [ -L ] [ -W ] [ -V ] [ -J ] [ -R ] [ -t
       directory ] [ -o objfile ] [ name ... ]

DESCRIPTION
       _A_s assembles the named files, or the standard input if no file name  is
       specified.  The available flags are:

       -a     Specifies  the  alignment  of procedures and data blocks.  It is
              given as a power of two; thus an alignment of 3 causes alignment
              on an eight byte boundary.  The default is -a2.

       -d     Specifies  the number of bytes to be assembled for offsets which
              involve forward or external references,  and  which  have  sizes
              unspecified in the assembly language.  The default is -d4.

       -L     Save  defined  labels  beginning  with a ‘L’, which are normally
              discarded to save space in the resultant symbol table.  The com‐
              pilers generate such temporary labels.

       -V     Use  virtual memory for some intermediate storage, rather than a
              temporary file.

       -W     Do not complain about errors.

       -J     Use  long  branches  to  resolve  jumps  when  byte-displacement
              branches  are  insufficient.  This must be used when a compiler-
              generated assembly contains branches of more than 32k bytes.

       -R     Make initialized data segments read-only, by concatenating  them
              to  the  text  segments.   This  obviates the need to run editor
              scripts on assembly code to make initialized data read-only  and
              shared.

       -t     Specifies  a directory to receive the temporary file, other than
              the default /tmp.

       All undefined symbols in the assembly are treated as global.

       The output of the assembly is left on the  file  _o_b_j_f_i_l_e_;  if  that  is
       omitted, _a_._o_u_t is used.

FILES
       /tmp/as∗       default temporary files
       a.out          default resultant object file

SEE ALSO
       ld(1), nm(1), adb(1), dbx(1), a.out(5)
       Auxiliary documentation _A_s_s_e_m_b_l_e_r _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l_.

AUTHORS
       John F. Reiser
       Robert R. Henry

BUGS
       -J  should  be  eliminated;  the  assembler should automatically choose
       among byte, word and long branches.



4th Berkeley Distribution         May 8, 1986                            AS(1)