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1 /*
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2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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3 * Use is subject to license terms.
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4 */
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5
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6 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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7 /* All Rights Reserved */
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8
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9 /*
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10 * Copyright (c) 1980 Regents of the University of California.
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11 * All rights reserved. The Berkeley software License Agreement
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12 * specifies the terms and conditions for redistribution.
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13 */
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14
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15 #pragma ident "@(#)integral.c 1.5 05/08/13 SMI"
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16
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17 #include "e.h"
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18 #include "e.def"
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19
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20 void
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21 integral(int p, int p1, int p2)
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22 {
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23 #ifndef NEQN
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24 if (p1 != 0)
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25 printf(".ds %d \\h'-0.4m'\\v'0.4m'\\*(%d\\v'-0.4m'\n", p1, p1);
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26 if (p2 != 0)
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27 printf(".ds %d \\v'-0.3m'\\*(%d\\v'0.3m'\n", p2, p2);
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28 #endif
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29 if (p1 != 0 && p2 != 0)
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30 shift2(p, p1, p2);
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31 else if (p1 != 0)
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32 bshiftb(p, SUB, p1);
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33 else if (p2 != 0)
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34 bshiftb(p, SUP, p2);
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35 if (dbg)
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36 printf(".\tintegral: S%d; h=%d b=%d\n",
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37 p, eht[p], ebase[p]);
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38 lfont[p] = ROM;
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39 }
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40
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41 void
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42 setintegral(void)
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43 {
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44 char *f;
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45
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46 yyval = oalloc();
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47 f = "\\(is";
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48 #ifndef NEQN
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49 printf(".ds %d \\s%d\\v'.1m'\\s+4%s\\s-4\\v'-.1m'\\s%d\n",
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50 yyval, ps, f, ps);
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51 eht[yyval] = VERT(EM(1.15, ps+4));
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52 ebase[yyval] = VERT(EM(0.3, ps));
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53 #else /* NEQN */
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54 printf(".ds %d %s\n", yyval, f);
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55 eht[yyval] = VERT(2);
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56 ebase[yyval] = 0;
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57 #endif /* NEQN */
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58 lfont[yyval] = rfont[yyval] = ROM;
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59 }
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