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For Xerox Internal Use Only -- October 16, 1977




        ALTO SOFTWARE PACKAGES




        Conlpiled on: October 16, 1977




       Xerox Palo Alto Research Center
            3333 Coyote Hill Road
          Palo Alto, California 94304
                   For Xerox. Internal Use Only -- October 16, 1977
                                                                                                    2



This list is a directory of major Alto software packages.      The files for these
programs are available on the  directory.        The doculnentation for these
packages    is   available  on   .      This    document    is  filed  as
 P ACKAGES.EARS.     Some packages have closely-corresonding subsystems
(e.g., TFS Trident disk software and 'l'FU utility); in this case, the bulk of the
aocumcntation is located with in the Alto Subsystems Manual, and a cross-reference
is included in this document.
The items listed below may be flagged by a single character to indicate where the
documentation may be found:

* documentation for these items is contained within this manual;
** these items are described further in a separate docunlent;
II   see the Alto Operating System manual for documentation.
      IIALLOC: A boundary-tag storage allocator.           Documentation      is   in    the     Alto
         Operating Systenl 1'Ianual. (Ed McCreight)
      *ASIM: A procedure which simulates an Alto microprocessor equipped with a
        RAM. (Peter Deutsch)
      *BCPLRUNTIME: A replacement for the standard Bcpl runtime (in the OS), in
        whihcch nearly all of the operations have been microprogrammed. rrypical
        Bcpl programs run 25 to 30 percent faster. (Ed Taft)
      IIBFS: The "basic file system" subroutines. These do page-oriented 1/0 to disk
        files organized according to standard Alto conventions. Documentation is in
        the Alto Operating System Manual. (Butler Lampson)
      *BYTEBLT: transfers an arbitrary block of 8-bit bytes from one place in
        memory to another. (Ed Taft)
      *CMDSCAN: an interactive command               scanner   and   collection    of    command
        interpretation procedures. (Ed Taft)
      *CONTEx'r: provides facilities for managing multiple ex.ecution contexts for Dcpl
        procedures. (Ed Taft)                     ,
      DCBPRESS: This file provides one subroutine for nlaking a one-page Press file
        from an Alto screen bit-map. The calling sequence is: DCBPress("filename",
        pDCB, [width, height, left, top]), which writes a file of the given name using
        pDCB as a pointer to a display control block.. The last four parameters allow
        you to select a portion of the rectangle described by the DCB for printing.
        Width is the width (in bits) of the window you wish to see; height is the
        height in scan-lines; left is the offset from the left edge of the bit-map; 'top
        is the offset from the top of the bit-map. (Bob Sproull)
      *DIABLOPRINTER: Routines that implement streams on the Diablo printer.                     (Ed
        Taft)
      **DIALOG and DIRECTOR: a set of run-time subroutines for conducting a dialog
        between a human and a program, and a mechanism for con trolling the
        execution of a 'batch' of programs.      Further documentation is on
        Dialog.ears. ( J ay Israel)
      *DPDIVIDE: Computes the quotient and remainder from the division of one 32-
        bit 2's complement number by another. (Petor Deutsch)
      UDSTREAM:    Provides   a   capability   for   display   streams,   nlultiple     fonts,    bit
             For Xerox Internal Use Only -- October 16, 1977
                                                                                         3



  repositioning, selective erasing and polarity inversion.       Documentation is in
  the Alto Operating System f-Ilanual. lPeter Deutsch)
*EFTP package: A Pup-based file-transfer           package   using   a   simple     (EFTP)
  communications protocol. (John Shoch)
*ETHEUBOOT: A subroutine that will "boot" the Alto from one of several boot
  files supplied by Ethernet

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