Regis to HPGL Conversion Program
--------------------------------

This disk contains the sources and other information to construct
this program. The files and their functions are listed below:

[301,30]
README.1ST This file
ABSTRCT.TXT Program description for publication
ERROR.FTN Routines to generate error messages
GETCDS.FTN Routine to prompt for a file name
QIOSYM.FTN Routine to read error message file
RHP.FTN Main program and other subroutines
GCML.MAC Fortran callable GCML
LENGTH.MAC Routine to get length of string
POS.MAC Routine to find position of string in string
RHP.TSK Compiled program
RHP.CMD Command file to build the program
RHP.DOC User documentation
TEST.RGS Test file of ReGIS commands

Two additional DEC-supplied files are required: QIOSYM.MSG, which
should be in directory LB:[1,2], and IECIO.FTN (supplied with the
IEC-11 driver), which should be in directory LB:[1,1]. If these
files are in other directories, edit the source files appropriately
(QIOSYM.FTN or RHP.FTN respectively).

The driving of the plotter is all carried out through the subroutine
IEEE (entry points IEEINI, IEEWRT and IEEEXI) in RHP.FTN. Note that
an HPIB address of 9 for the computer and 31 (i.e. listen only) for
the plotter are assumed. To change the computer address, change
parameter COMADR in routine IEEE (in file RHP.FTN). To use a different
interface (e.g. RS232), only this routine need be changed.