1*779fc935Sceastha /* 2*779fc935Sceastha * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3*779fc935Sceastha * Use is subject to license terms. 4*779fc935Sceastha */ 5*779fc935Sceastha 67c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 77c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 87c478bd9Sstevel@tonic-gate 97c478bd9Sstevel@tonic-gate /* 107c478bd9Sstevel@tonic-gate * Copyright (c) 1980 Regents of the University of California. 117c478bd9Sstevel@tonic-gate * All rights reserved. The Berkeley software License Agreement 127c478bd9Sstevel@tonic-gate * specifies the terms and conditions for redistribution. 137c478bd9Sstevel@tonic-gate */ 147c478bd9Sstevel@tonic-gate 15*779fc935Sceastha #pragma ident "%Z%%M% %I% %E% SMI" 167c478bd9Sstevel@tonic-gate 177c478bd9Sstevel@tonic-gate #include "e.h" 187c478bd9Sstevel@tonic-gate 19*779fc935Sceastha void 20*779fc935Sceastha fromto(int p1, int p2, int p3) 21*779fc935Sceastha { 227c478bd9Sstevel@tonic-gate int b, h1, b1, pss; 237c478bd9Sstevel@tonic-gate yyval = oalloc(); 247c478bd9Sstevel@tonic-gate lfont[yyval] = rfont[yyval] = 0; 257c478bd9Sstevel@tonic-gate h1 = eht[yyval] = eht[p1]; 267c478bd9Sstevel@tonic-gate b1 = ebase[p1]; 277c478bd9Sstevel@tonic-gate b = 0; 287c478bd9Sstevel@tonic-gate pss = EFFPS(ps); 297c478bd9Sstevel@tonic-gate ps += 3; 307c478bd9Sstevel@tonic-gate nrwid(p1, ps, p1); 317c478bd9Sstevel@tonic-gate printf(".nr %d \\n(%d\n", yyval, p1); 327c478bd9Sstevel@tonic-gate if (p2 > 0) { 337c478bd9Sstevel@tonic-gate nrwid(p2, pss, p2); 34*779fc935Sceastha printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", 35*779fc935Sceastha p2, yyval, yyval, p2); 367c478bd9Sstevel@tonic-gate eht[yyval] += eht[p2]; 377c478bd9Sstevel@tonic-gate b = eht[p2]; 387c478bd9Sstevel@tonic-gate } 397c478bd9Sstevel@tonic-gate if (p3 > 0) { 407c478bd9Sstevel@tonic-gate nrwid(p3, pss, p3); 41*779fc935Sceastha printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", 42*779fc935Sceastha p3, yyval, yyval, p3); 437c478bd9Sstevel@tonic-gate eht[yyval] += eht[p3]; 447c478bd9Sstevel@tonic-gate } 457c478bd9Sstevel@tonic-gate printf(".ds %d ", yyval); /* bottom of middle box */ 467c478bd9Sstevel@tonic-gate if (p2 > 0) { 477c478bd9Sstevel@tonic-gate printf("\\v'%du'\\h'\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d", 487c478bd9Sstevel@tonic-gate eht[p2]-ebase[p2]+b1, yyval, p2, pss, p2, EFFPS(ps)); 497c478bd9Sstevel@tonic-gate printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\\n", 507c478bd9Sstevel@tonic-gate yyval, p2, -(eht[p2]-ebase[p2]+b1)); 517c478bd9Sstevel@tonic-gate } 527c478bd9Sstevel@tonic-gate #ifndef NEQN 537c478bd9Sstevel@tonic-gate printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du/2u'\\\n", 547c478bd9Sstevel@tonic-gate yyval, p1, p1, yyval, p1); 55*779fc935Sceastha #else /* NEQN */ 56*779fc935Sceastha printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du+2u/2u'\\\n", 57*779fc935Sceastha yyval, p1, p1, yyval, p1); 58*779fc935Sceastha #endif /* NEQN */ 597c478bd9Sstevel@tonic-gate if (p3 > 0) { 60*779fc935Sceastha printf("\\v'%du'\\h'-\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d" 61*779fc935Sceastha "\\h'\\n(%du-\\n(%du/2u'\\v'%du'\\\n", 62*779fc935Sceastha -(h1-b1+ebase[p3]), yyval, p3, pss, p3, EFFPS(ps), 63*779fc935Sceastha yyval, p3, (h1-b1+ebase[p3])); 647c478bd9Sstevel@tonic-gate } 657c478bd9Sstevel@tonic-gate printf("\n"); 667c478bd9Sstevel@tonic-gate ebase[yyval] = b + b1; 67*779fc935Sceastha if (dbg) 68*779fc935Sceastha printf(".\tfrom to: S%d <- %d f %d t %d; h=%d b=%d\n", 697c478bd9Sstevel@tonic-gate yyval, p1, p2, p3, eht[yyval], ebase[yyval]); 707c478bd9Sstevel@tonic-gate ofree(p1); 717c478bd9Sstevel@tonic-gate if (p2 > 0) ofree(p2); 727c478bd9Sstevel@tonic-gate if (p3 > 0) ofree(p3); 737c478bd9Sstevel@tonic-gate } 74