sys/arch/sparc/fpu/fpu_extern.h

   1 /*      $NetBSD: fpu_extern.h,v 1.8 2005/11/16 23:24:44 uwe 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 #if defined(_KERNEL_OPT)
  33 #include "opt_sparc_arch.h"
  34 #endif
  35
  36 struct proc;
  37 #ifndef SUN4U
  38 struct fpstate;
  39 struct trapframe;
  40 #else /* SUN4U */
  41 struct fpstate64;
  42 struct trapframe64;
  43 #endif /* SUN4U */
  44 union instr;
  45 struct fpemu;
  46 struct fpn;
  47
  48 /* fpu.c */
  49 #ifndef SUN4U
  50 int fpu_cleanup(struct lwp *, struct fpstate *);
  51 int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *);
  52 #else /* SUN4U */
  53 int fpu_cleanup(struct lwp *, struct fpstate64 *);
  54 int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *);
  55 #endif /* SUN4U */
  56 int fpu_execute(struct fpemu *, union instr);
  57
  58 /* fpu_add.c */
  59 struct fpn *fpu_add(struct fpemu *);
  60
  61 /* fpu_compare.c */
  62 void fpu_compare(struct fpemu *, int);
  63
  64 /* fpu_div.c */
  65 struct fpn *fpu_div(struct fpemu *);
  66
  67 /* fpu_explode.c */
  68 int fpu_itof(struct fpn *, u_int);
  69 #ifdef SUN4U
  70 int fpu_xtof(struct fpn *, uint64_t);
  71 #endif /* SUN4U */
  72 int fpu_stof(struct fpn *, u_int);
  73 int fpu_dtof(struct fpn *, u_int, u_int );
  74 int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int );
  75 void fpu_explode(struct fpemu *, struct fpn *, int, int );
  76
  77 /* fpu_implode.c */
  78 u_int fpu_ftoi(struct fpemu *, struct fpn *);
  79 #ifdef SUN4U
  80 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
  81 #endif /* SUN4U */
  82 u_int fpu_ftos(struct fpemu *, struct fpn *);
  83 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
  84 u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
  85 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
  86
  87 /* fpu_mul.c */
  88 struct fpn *fpu_mul(struct fpemu *);
  89
  90 /* fpu_sqrt.c */
  91 struct fpn *fpu_sqrt(struct fpemu *);
  92
  93 /* fpu_subr.c */
  94 int fpu_shr(register struct fpn *, register int);
  95 void fpu_norm(register struct fpn *);
  96 struct fpn *fpu_newnan(register struct fpemu *);