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fpu_extern.h revision 1.3 
      1 /*	$NetBSD: fpu_extern.h,v 1.3 2000/06/18 06:54:17 mrg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1995 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 struct proc;
     40 #ifndef SUN4U
     41 struct fpstate;
     42 struct trapframe;
     43 #else /* SUN4U */
     44 struct fpstate64;
     45 struct trapframe64;
     46 #endif /* SUN4U */
     47 union instr;
     48 struct fpemu;
     49 struct fpn;
     50 
     51 /* fpu.c */
     52 #ifndef SUN4U
     53 void fpu_cleanup __P((struct proc *, struct fpstate *));
     54 int fpu_emulate __P((struct proc *, struct trapframe *, struct fpstate *));
     55 #else /* SUN4U */
     56 void fpu_cleanup __P((struct proc *, struct fpstate64 *));
     57 int fpu_emulate __P((struct proc *, struct trapframe64 *, struct fpstate64 *));
     58 #endif /* SUN4U */
     59 int fpu_execute __P((struct fpemu *, union instr));
     60 
     61 /* fpu_add.c */
     62 struct fpn *fpu_add __P((struct fpemu *));
     63 
     64 /* fpu_compare.c */
     65 void fpu_compare __P((struct fpemu *, int));
     66 
     67 /* fpu_div.c */
     68 struct fpn *fpu_div __P((struct fpemu *));
     69 
     70 /* fpu_explode.c */
     71 int fpu_itof __P((struct fpn *, u_int));
     72 #ifdef SUN4U
     73 int fpu_xitof __P((struct fpn *, u_int64_t));
     74 #endif /* SUN4U */
     75 int fpu_stof __P((struct fpn *, u_int));
     76 int fpu_dtof __P((struct fpn *, u_int, u_int ));
     77 int fpu_xtof __P((struct fpn *, u_int, u_int , u_int , u_int ));
     78 void fpu_explode __P((struct fpemu *, struct fpn *, int, int ));
     79 
     80 /* fpu_implode.c */
     81 u_int fpu_ftoi __P((struct fpemu *, struct fpn *));
     82 #ifdef SUN4U
     83 u_int fpu_ftoxi __P((struct fpemu *, struct fpn *, u_int *));
     84 #endif /* SUN4U */
     85 u_int fpu_ftos __P((struct fpemu *, struct fpn *));
     86 u_int fpu_ftod __P((struct fpemu *, struct fpn *, u_int *));
     87 u_int fpu_ftox __P((struct fpemu *, struct fpn *, u_int *));
     88 void fpu_implode __P((struct fpemu *, struct fpn *, int, u_int *));
     89 
     90 /* fpu_mul.c */
     91 struct fpn *fpu_mul __P((struct fpemu *));
     92 
     93 /* fpu_sqrt.c */
     94 struct fpn *fpu_sqrt __P((struct fpemu *));
     95 
     96 /* fpu_subr.c */
     97 int fpu_shr __P((register struct fpn *, register int));
     98 void fpu_norm __P((register struct fpn *));
     99 struct fpn *fpu_newnan __P((register struct fpemu *));
    100