sys/arch/powerpc/fpu/fpu_extern.h

   1 /*      $NetBSD: fpu_extern.h,v 1.3 2005/12/11 12:18:42 christos 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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 struct proc;
  33 struct fpreg;
  34 struct trapframe;
  35 union instr;
  36 struct fpemu;
  37 struct fpn;
  38
  39 /* fpu.c */
  40 int fpu_emulate(struct trapframe *, struct fpreg *);
  41 int fpu_execute(struct trapframe *, struct fpemu *, union instr *);
  42
  43 /* fpu_add.c */
  44 struct fpn *fpu_add(struct fpemu *);
  45
  46 /* fpu_compare.c */
  47 void fpu_compare(struct fpemu *, int);
  48
  49 /* fpu_div.c */
  50 struct fpn *fpu_div(struct fpemu *);
  51
  52 /* fpu_explode.c */
  53 int fpu_itof(struct fpn *, u_int);
  54 int fpu_xtof(struct fpn *, u_int64_t);
  55 int fpu_stof(struct fpn *, u_int);
  56 int fpu_dtof(struct fpn *, u_int, u_int);
  57 void fpu_explode(struct fpemu *, struct fpn *, int, int);
  58
  59 /* fpu_implode.c */
  60 u_int fpu_ftoi(struct fpemu *, struct fpn *);
  61 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
  62 u_int fpu_ftos(struct fpemu *, struct fpn *);
  63 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
  64 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
  65
  66 /* fpu_mul.c */
  67 struct fpn *fpu_mul(struct fpemu *);
  68
  69 /* fpu_sqrt.c */
  70 struct fpn *fpu_sqrt(struct fpemu *);
  71
  72 /* fpu_subr.c */
  73 int fpu_shr(struct fpn *, int);
  74 void fpu_norm(struct fpn *);
  75 struct fpn *fpu_newnan(struct fpemu *);