1 /* 2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * Copyright (c) 1980 Regents of the University of California. 11 * All rights reserved. The Berkeley software License Agreement 12 * specifies the terms and conditions for redistribution. 13 */ 14 15 #include "e.h" 16 17 void 18 boverb(int p1, int p2) 19 { 20 int h, b, treg, d; 21 22 treg = oalloc(); 23 yyval = p1; 24 #ifndef NEQN 25 d = VERT(EM(0.3, ps)); 26 h = eht[p1] + eht[p2] + d; 27 #else /* NEQN */ 28 d = VERT(1); 29 h = eht[p1] + eht[p2]; 30 #endif /* NEQN */ 31 b = eht[p2] - d; 32 if (dbg) 33 printf(".\tb:bob: S%d <- S%d over S%d; b=%d, h=%d\n", 34 yyval, p1, p2, b, h); 35 nrwid(p1, ps, p1); 36 nrwid(p2, ps, p2); 37 printf(".nr %d \\n(%d\n", treg, p1); 38 printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, treg, treg, p2); 39 #ifndef NEQN 40 printf(".nr %d \\n(%d+\\s%d.5m\\s0\n", treg, treg, EFFPS(ps)); 41 #endif /* NEQN */ 42 printf(".ds %d \\v'%du'\\h'\\n(%du-\\n(%du/2u'\\*(%d\\\n", 43 yyval, eht[p2]-ebase[p2]-d, treg, p2, p2); 44 #ifndef NEQN 45 printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\*(%d\\\n", 46 p2, p1, -(eht[p2]-ebase[p2]+d+ebase[p1]), p1); 47 printf("\\h'-\\n(%du-\\n(%du/2u+.1m'\\v'%du'\\l'\\n" 48 "(%du-.2m'\\h'.1m'\\v'%du'\n", treg, p1, ebase[p1]+d, treg, d); 49 #else /* NEQN */ 50 printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\*(%d\\\n", 51 p2, p1, -eht[p2]+ebase[p2]-ebase[p1], p1); 52 printf("\\h'-\\n(%du-\\n(%du-2u/2u'\\v'%du'\\l'\\n(%du'\\v'%du'\n", 53 treg, p1, ebase[p1], treg, d); 54 #endif /* NEQN */ 55 ebase[yyval] = b; 56 eht[yyval] = h; 57 lfont[yyval] = rfont[yyval] = 0; 58 ofree(p2); 59 ofree(treg); 60 } 61