1 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 2 /* All Rights Reserved */ 3 4 5 /* 6 * Copyright (c) 1980 Regents of the University of California. 7 * All rights reserved. The Berkeley software License Agreement 8 * specifies the terms and conditions for redistribution. 9 */ 10 11 /* 12 * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc. 13 * All Rights Reserved. 14 */ 15 16 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */ 17 18 # include "e.h" 19 20 boverb(p1, p2) int p1, p2; { 21 int h, b, treg, d; 22 23 treg = oalloc(); 24 yyval = p1; 25 #ifndef NEQN 26 d = VERT(EM(0.3, ps)); 27 h = eht[p1] + eht[p2] + d; 28 #else NEQN 29 d = VERT(1); 30 h = eht[p1] + eht[p2]; 31 #endif NEQN 32 b = eht[p2] - d; 33 if(dbg)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 printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\*(%d\\\n", 45 #ifndef NEQN 46 p2, p1, -(eht[p2]-ebase[p2]+d+ebase[p1]), p1); 47 printf("\\h'-\\n(%du-\\n(%du/2u+.1m'\\v'%du'\\l'\\n(%du-.2m'\\h'.1m'\\v'%du'\n", 48 treg, p1, ebase[p1]+d, treg, d); 49 #else NEQN 50 p2, p1, -eht[p2]+ebase[p2]-ebase[p1], p1); 51 printf("\\h'-\\n(%du-\\n(%du-2u/2u'\\v'%du'\\l'\\n(%du'\\v'%du'\n", 52 treg, p1, ebase[p1], treg, d); 53 #endif NEQN 54 ebase[yyval] = b; 55 eht[yyval] = h; 56 lfont[yyval] = rfont[yyval] = 0; 57 ofree(p2); 58 ofree(treg); 59 } 60