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-rw-r--r--libgcc-math/dbl-64/dosincos.c189
1 files changed, 0 insertions, 189 deletions
diff --git a/libgcc-math/dbl-64/dosincos.c b/libgcc-math/dbl-64/dosincos.c
deleted file mode 100644
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--- a/libgcc-math/dbl-64/dosincos.c
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-/*
- * IBM Accurate Mathematical Library
- * written by International Business Machines Corp.
- * Copyright (C) 2001 Free Software Foundation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-/********************************************************************/
-/* */
-/* MODULE_NAME: dosincos.c */
-/* */
-/* */
-/* FUNCTIONS: dubsin */
-/* dubcos */
-/* docos */
-/* FILES NEEDED: endian.h mydefs.h dla.h dosincos.h */
-/* sincos.tbl */
-/* */
-/* Routines compute sin() and cos() as Double-Length numbers */
-/********************************************************************/
-
-
-
-#include "endian.h"
-#include "mydefs.h"
-#include "sincos.tbl"
-#include "dla.h"
-#include "dosincos.h"
-#include "math_private.h"
-
-/***********************************************************************/
-/* Routine receive Double-Length number (x+dx) and computing sin(x+dx) */
-/* as Double-Length number and store it at array v .It computes it by */
-/* arithmetic action on Double-Length numbers */
-/*(x+dx) between 0 and PI/4 */
-/***********************************************************************/
-
-void __dubsin(double x, double dx, double v[]) {
- double r,s,p,hx,tx,hy,ty,q,c,cc,d,dd,d2,dd2,e,ee,
- sn,ssn,cs,ccs,ds,dss,dc,dcc;
-#if 0
- double xx,y,yy,z,zz;
-#endif
- mynumber u;
- int4 k;
-
- u.x=x+big.x;
- k = u.i[LOW_HALF]<<2;
- x=x-(u.x-big.x);
- d=x+dx;
- dd=(x-d)+dx;
- /* sin(x+dx)=sin(Xi+t)=sin(Xi)*cos(t) + cos(Xi)sin(t) where t ->0 */
- MUL2(d,dd,d,dd,d2,dd2,p,hx,tx,hy,ty,q,c,cc);
- sn=sincos.x[k]; /* */
- ssn=sincos.x[k+1]; /* sin(Xi) and cos(Xi) */
- cs=sincos.x[k+2]; /* */
- ccs=sincos.x[k+3]; /* */
- MUL2(d2,dd2,s7.x,ss7.x,ds,dss,p,hx,tx,hy,ty,q,c,cc); /* Taylor */
- ADD2(ds,dss,s5.x,ss5.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc); /* series */
- ADD2(ds,dss,s3.x,ss3.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc); /* for sin */
- MUL2(d,dd,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,d,dd,ds,dss,r,s); /* ds=sin(t) */
-
- MUL2(d2,dd2,c8.x,cc8.x,dc,dcc,p,hx,tx,hy,ty,q,c,cc); ;/* Taylor */
- ADD2(dc,dcc,c6.x,cc6.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc); /* series */
- ADD2(dc,dcc,c4.x,cc4.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc); /* for cos */
- ADD2(dc,dcc,c2.x,cc2.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc); /* dc=cos(t) */
-
- MUL2(cs,ccs,ds,dss,e,ee,p,hx,tx,hy,ty,q,c,cc);
- MUL2(dc,dcc,sn,ssn,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- SUB2(e,ee,dc,dcc,e,ee,r,s);
- ADD2(e,ee,sn,ssn,e,ee,r,s); /* e+ee=sin(x+dx) */
-
- v[0]=e;
- v[1]=ee;
-}
-/**********************************************************************/
-/* Routine receive Double-Length number (x+dx) and computes cos(x+dx) */
-/* as Double-Length number and store it in array v .It computes it by */
-/* arithmetic action on Double-Length numbers */
-/*(x+dx) between 0 and PI/4 */
-/**********************************************************************/
-
-void __dubcos(double x, double dx, double v[]) {
- double r,s,p,hx,tx,hy,ty,q,c,cc,d,dd,d2,dd2,e,ee,
- sn,ssn,cs,ccs,ds,dss,dc,dcc;
-#if 0
- double xx,y,yy,z,zz;
-#endif
- mynumber u;
- int4 k;
- u.x=x+big.x;
- k = u.i[LOW_HALF]<<2;
- x=x-(u.x-big.x);
- d=x+dx;
- dd=(x-d)+dx; /* cos(x+dx)=cos(Xi+t)=cos(Xi)cos(t) - sin(Xi)sin(t) */
- MUL2(d,dd,d,dd,d2,dd2,p,hx,tx,hy,ty,q,c,cc);
- sn=sincos.x[k]; /* */
- ssn=sincos.x[k+1]; /* sin(Xi) and cos(Xi) */
- cs=sincos.x[k+2]; /* */
- ccs=sincos.x[k+3]; /* */
- MUL2(d2,dd2,s7.x,ss7.x,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,s5.x,ss5.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,s3.x,ss3.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- MUL2(d,dd,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,d,dd,ds,dss,r,s);
-
- MUL2(d2,dd2,c8.x,cc8.x,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c6.x,cc6.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c4.x,cc4.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c2.x,cc2.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
-
- MUL2(cs,ccs,ds,dss,e,ee,p,hx,tx,hy,ty,q,c,cc);
- MUL2(dc,dcc,sn,ssn,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
-
- MUL2(d2,dd2,s7.x,ss7.x,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,s5.x,ss5.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,s3.x,ss3.x,ds,dss,r,s);
- MUL2(d2,dd2,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- MUL2(d,dd,ds,dss,ds,dss,p,hx,tx,hy,ty,q,c,cc);
- ADD2(ds,dss,d,dd,ds,dss,r,s);
- MUL2(d2,dd2,c8.x,cc8.x,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c6.x,cc6.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c4.x,cc4.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(dc,dcc,c2.x,cc2.x,dc,dcc,r,s);
- MUL2(d2,dd2,dc,dcc,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- MUL2(sn,ssn,ds,dss,e,ee,p,hx,tx,hy,ty,q,c,cc);
- MUL2(dc,dcc,cs,ccs,dc,dcc,p,hx,tx,hy,ty,q,c,cc);
- ADD2(e,ee,dc,dcc,e,ee,r,s);
- SUB2(cs,ccs,e,ee,e,ee,r,s);
-
- v[0]=e;
- v[1]=ee;
-}
-/**********************************************************************/
-/* Routine receive Double-Length number (x+dx) and computes cos(x+dx) */
-/* as Double-Length number and store it in array v */
-/**********************************************************************/
-void __docos(double x, double dx, double v[]) {
- double y,yy,p,w[2];
- if (x>0) {y=x; yy=dx;}
- else {y=-x; yy=-dx;}
- if (y<0.5*hp0.x) /* y< PI/4 */
- {__dubcos(y,yy,w); v[0]=w[0]; v[1]=w[1];}
- else if (y<1.5*hp0.x) { /* y< 3/4 * PI */
- p=hp0.x-y; /* p = PI/2 - y */
- yy=hp1.x-yy;
- y=p+yy;
- yy=(p-y)+yy;
- if (y>0) {__dubsin(y,yy,w); v[0]=w[0]; v[1]=w[1];}
- /* cos(x) = sin ( 90 - x ) */
- else {__dubsin(-y,-yy,w); v[0]=-w[0]; v[1]=-w[1];
- }
- }
- else { /* y>= 3/4 * PI */
- p=2.0*hp0.x-y; /* p = PI- y */
- yy=2.0*hp1.x-yy;
- y=p+yy;
- yy=(p-y)+yy;
- __dubcos(y,yy,w);
- v[0]=-w[0];
- v[1]=-w[1];
- }
-}
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