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- #ifndef lint
- static char *RCSid = "$Id: corplot.c,v 3.37 1992/05/28 03:31:19 woo Exp $";
- #endif
-
-
- /* GNUPLOT - corplot.c */
- /*
- * Copyright (C) 1986 - 1993 Thomas Williams, Colin Kelley
- *
- * Permission to use, copy, and distribute this software and its
- * documentation for any purpose with or without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation.
- *
- * Permission to modify the software is granted, but not the right to
- * distribute the modified code. Modifications are to be distributed
- * as patches to released version.
- *
- * This software is provided "as is" without express or implied warranty.
- *
- *
- * AUTHORS
- *
- * Original Software:
- * Thomas Williams, Colin Kelley.
- *
- * Gnuplot 2.0 additions:
- * Russell Lang, Dave Kotz, John Campbell.
- *
- * Gnuplot 3.0 additions:
- * Gershon Elber and many others.
- *
- * There is a mailing list for gnuplot users. Note, however, that the
- * newsgroup
- * comp.graphics.gnuplot
- * is identical to the mailing list (they
- * both carry the same set of messages). We prefer that you read the
- * messages through that newsgroup, to subscribing to the mailing list.
- * (If you can read that newsgroup, and are already on the mailing list,
- * please send a message info-gnuplot-request@dartmouth.edu, asking to be
- * removed from the mailing list.)
- *
- * The address for mailing to list members is
- * info-gnuplot@dartmouth.edu
- * and for mailing administrative requests is
- * info-gnuplot-request@dartmouth.edu
- * The mailing list for bug reports is
- * bug-gnuplot@dartmouth.edu
- * The list of those interested in beta-test versions is
- * info-gnuplot-beta@dartmouth.edu
- */
- #include <stdio.h>
- #include <process.h>
- #include <dos.h>
- #if defined(ATARI) && defined(__PUREC__)
- #include <plot.h>
- #endif
-
- #define BOUNDARY 32768
- #define segment(addr) (FP_SEG(m) + ((FP_OFF(m)+15) >> 4));
- #define round(value,boundary) (((value) + (boundary) - 1) & ~((boundary) - 1))
-
- char *malloc(),*realloc();
-
- char prog[] = "gnuplot";
- char corscreen[] = "CORSCREEN=0";
-
- main()
- {
- register unsigned int segm,start;
- char *m;
- if (!(m = malloc(BOUNDARY))) {
- printf("malloc() failed\n");
- exit(1);
- }
- segm = segment(m);
- start = round(segm,BOUNDARY/16);
-
- if (realloc(m,BOUNDARY+(start-segm)*16) != m) {
- printf("can't realloc() memory\n");
- exit(2);
- }
-
- if ((segm = start >> 11) >= 8) {
- printf("not enough room in first 256K\n");
- exit(3);
- }
-
- corscreen[sizeof(corscreen)-2] = '0' + segm;
- if (putenv(corscreen))
- perror("putenv");
-
- if (spawnlp(P_WAIT,prog,prog,NULL))
- perror("spawnlp");
- }
-