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Annotation of 42BSD/usr.bin/eqn/over.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)over.c     4.3 8/11/83";
        !             3: #endif
        !             4: 
        !             5: # include "e.h"
        !             6: 
        !             7: boverb(p1, p2) int p1, p2; {
        !             8:        int h, b, treg, d;
        !             9: 
        !            10:        treg = oalloc();
        !            11:        yyval = p1;
        !            12: #ifndef NEQN
        !            13:        d = VERT((ps*6*3) / 10);        /* 0.3m */
        !            14:        h = eht[p1] + eht[p2] + d;
        !            15: #else NEQN
        !            16:        d = VERT(1);
        !            17:        h = eht[p1] + eht[p2];
        !            18: #endif NEQN
        !            19:        b = eht[p2] - d;
        !            20:        if(dbg)printf(".\tb:bob: S%d <- S%d over S%d; b=%d, h=%d\n", 
        !            21:                yyval, p1, p2, b, h);
        !            22:        nrwid(p1, ps, p1);
        !            23:        nrwid(p2, ps, p2);
        !            24:        printf(".nr %d \\n(%d\n", treg, p1);
        !            25:        printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, treg, treg, p2);
        !            26: #ifndef NEQN
        !            27:        printf(".nr %d \\n(%d+\\s%d.5m\\s0\n", treg, treg, EFFPS(ps));
        !            28: #endif NEQN
        !            29:        printf(".ds %d \\v'%du'\\h'\\n(%du-\\n(%du/2u'\\*(%d\\\n", 
        !            30:                yyval, eht[p2]-ebase[p2]-d, treg, p2, p2);
        !            31:        printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\*(%d\\\n", 
        !            32: #ifndef NEQN
        !            33:                p2, p1, -(eht[p2]-ebase[p2]+d+ebase[p1]), p1);
        !            34:        printf("\\h'-\\n(%du-\\n(%du/2u+.1m'\\v'%du'\\l'\\n(%du-.2m'\\h'.1m'\\v'%du'\n", 
        !            35:                 treg, p1, ebase[p1]+d, treg, d);
        !            36: #else NEQN
        !            37:                p2, p1, -eht[p2]+ebase[p2]-ebase[p1], p1);
        !            38:        printf("\\h'-\\n(%du-\\n(%du-2u/2u'\\v'%du'\\l'\\n(%du'\\v'%du'\n", 
        !            39:                 treg, p1, ebase[p1], treg, d);
        !            40: #endif NEQN
        !            41:        ebase[yyval] = b;
        !            42:        eht[yyval] = h;
        !            43:        lfont[yyval] = rfont[yyval] = 0;
        !            44:        ofree(p2);
        !            45:        ofree(treg);
        !            46: }

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