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fpu_extern.h revision 1.8 
      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  * 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 #if defined(_KERNEL_OPT)
     40 #include "opt_sparc_arch.h"
     41 #endif
     42 
     43 struct proc;
     44 #ifndef SUN4U
     45 struct fpstate;
     46 struct trapframe;
     47 #else /* SUN4U */
     48 struct fpstate64;
     49 struct trapframe64;
     50 #endif /* SUN4U */
     51 union instr;
     52 struct fpemu;
     53 struct fpn;
     54 
     55 /* fpu.c */
     56 #ifndef SUN4U
     57 int fpu_cleanup(struct lwp *, struct fpstate *);
     58 int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *);
     59 #else /* SUN4U */
     60 int fpu_cleanup(struct lwp *, struct fpstate64 *);
     61 int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *);
     62 #endif /* SUN4U */
     63 int fpu_execute(struct fpemu *, union instr);
     64 
     65 /* fpu_add.c */
     66 struct fpn *fpu_add(struct fpemu *);
     67 
     68 /* fpu_compare.c */
     69 void fpu_compare(struct fpemu *, int);
     70 
     71 /* fpu_div.c */
     72 struct fpn *fpu_div(struct fpemu *);
     73 
     74 /* fpu_explode.c */
     75 int fpu_itof(struct fpn *, u_int);
     76 #ifdef SUN4U
     77 int fpu_xtof(struct fpn *, uint64_t);
     78 #endif /* SUN4U */
     79 int fpu_stof(struct fpn *, u_int);
     80 int fpu_dtof(struct fpn *, u_int, u_int );
     81 int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int );
     82 void fpu_explode(struct fpemu *, struct fpn *, int, int );
     83 
     84 /* fpu_implode.c */
     85 u_int fpu_ftoi(struct fpemu *, struct fpn *);
     86 #ifdef SUN4U
     87 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
     88 #endif /* SUN4U */
     89 u_int fpu_ftos(struct fpemu *, struct fpn *);
     90 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
     91 u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
     92 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
     93 
     94 /* fpu_mul.c */
     95 struct fpn *fpu_mul(struct fpemu *);
     96 
     97 /* fpu_sqrt.c */
     98 struct fpn *fpu_sqrt(struct fpemu *);
     99 
    100 /* fpu_subr.c */
    101 int fpu_shr(register struct fpn *, register int);
    102 void fpu_norm(register struct fpn *);
    103 struct fpn *fpu_newnan(register struct fpemu *);
    104