4.3BSD-UWisc/man/cat1/as.1

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AS(1)               UNIX Programmer's Manual                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 sym-
          bol table.  The compilers 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 con-
          catenating 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



Printed 12/27/86           May 8, 1986                          1






AS(1)               UNIX Programmer's Manual                AS(1)



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.












































Printed 12/27/86           May 8, 1986                          2