sys/arch/m68k/include/fpreg.h

   1 /*      $NetBSD: fpu_emulate.h,v 1.12 2005/12/11 12:17:52 christos Exp $        */
   2
   3 /*
   4  * Copyright (c) 1995 Gordon Ross
   5  * Copyright (c) 1995 Ken Nakata
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  * 4. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by Gordon Ross
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _FPREG_H_
  35 #define _FPREG_H_
  36
  37
  38 /*
  39  * MC68881/68882 FPcr bit definitions
  40  */
  41
  42 /* fpsr */
  43 #define FPSR_CCB    0xff000000
  44 # define FPSR_NEG   0x08000000
  45 # define FPSR_ZERO  0x04000000
  46 # define FPSR_INF   0x02000000
  47 # define FPSR_NAN   0x01000000
  48 #define FPSR_QTT    0x00ff0000
  49 # define FPSR_QSG   0x00800000
  50 # define FPSR_QUO   0x007f0000
  51 #define FPSR_EXCP   0x0000ff00
  52 # define FPSR_BSUN  0x00008000
  53 # define FPSR_SNAN  0x00004000
  54 # define FPSR_OPERR 0x00002000
  55 # define FPSR_OVFL  0x00001000
  56 # define FPSR_UNFL  0x00000800
  57 # define FPSR_DZ    0x00000400
  58 # define FPSR_INEX2 0x00000200
  59 # define FPSR_INEX1 0x00000100
  60 #define FPSR_AEX    0x000000ff
  61 # define FPSR_AIOP  0x00000080
  62 # define FPSR_AOVFL 0x00000040
  63 # define FPSR_AUNFL 0x00000020
  64 # define FPSR_ADZ   0x00000010
  65 # define FPSR_AINEX 0x00000008
  66
  67 /* fpcr */
  68 #define FPCR_EXCP   FPSR_EXCP
  69 # define FPCR_BSUN  FPSR_BSUN
  70 # define FPCR_SNAN  FPSR_SNAN
  71 # define FPCR_OPERR FPSR_OPERR
  72 # define FPCR_OVFL  FPSR_OVFL
  73 # define FPCR_UNFL  FPSR_UNFL
  74 # define FPCR_DZ    FPSR_DZ
  75 # define FPCR_INEX2 FPSR_INEX2
  76 # define FPCR_INEX1 FPSR_INEX1
  77 #define FPCR_MODE   0x000000ff
  78 # define FPCR_PREC  0x000000c0
  79 #  define FPCR_EXTD 0x00000000
  80 #  define FPCR_SNGL 0x00000040
  81 #  define FPCR_DBL  0x00000080
  82 # define FPCR_ROUND 0x00000030
  83 #  define FPCR_NEAR 0x00000000
  84 #  define FPCR_ZERO 0x00000010
  85 #  define FPCR_MINF 0x00000020
  86 #  define FPCR_PINF 0x00000030
  87
  88
  89 #endif
  90