~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/math-emu/single.h

Version: ~ [ linux-5.5-rc1 ] ~ [ linux-5.4.2 ] ~ [ linux-5.3.15 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.88 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.158 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.206 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.206 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.78 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* Software floating-point emulation.
  2    Definitions for IEEE Single Precision.
  3    Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
  4    This file is part of the GNU C Library.
  5    Contributed by Richard Henderson (rth@cygnus.com),
  6                   Jakub Jelinek (jj@ultra.linux.cz),
  7                   David S. Miller (davem@redhat.com) and
  8                   Peter Maydell (pmaydell@chiark.greenend.org.uk).
  9 
 10    The GNU C Library is free software; you can redistribute it and/or
 11    modify it under the terms of the GNU Library General Public License as
 12    published by the Free Software Foundation; either version 2 of the
 13    License, or (at your option) any later version.
 14 
 15    The GNU C Library is distributed in the hope that it will be useful,
 16    but WITHOUT ANY WARRANTY; without even the implied warranty of
 17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 18    Library General Public License for more details.
 19 
 20    You should have received a copy of the GNU Library General Public
 21    License along with the GNU C Library; see the file COPYING.LIB.  If
 22    not, write to the Free Software Foundation, Inc.,
 23    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 24 
 25 #ifndef    __MATH_EMU_SINGLE_H__
 26 #define    __MATH_EMU_SINGLE_H__
 27 
 28 #if _FP_W_TYPE_SIZE < 32
 29 #error "Here's a nickel kid.  Go buy yourself a real computer."
 30 #endif
 31 
 32 #define _FP_FRACBITS_S          24
 33 #define _FP_FRACXBITS_S         (_FP_W_TYPE_SIZE - _FP_FRACBITS_S)
 34 #define _FP_WFRACBITS_S         (_FP_WORKBITS + _FP_FRACBITS_S)
 35 #define _FP_WFRACXBITS_S        (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S)
 36 #define _FP_EXPBITS_S           8
 37 #define _FP_EXPBIAS_S           127
 38 #define _FP_EXPMAX_S            255
 39 #define _FP_QNANBIT_S           ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2))
 40 #define _FP_IMPLBIT_S           ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
 41 #define _FP_OVERFLOW_S          ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
 42 
 43 /* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
 44    chosen by the target machine.  */
 45 
 46 union _FP_UNION_S
 47 {
 48   float flt;
 49   struct {
 50 #if __BYTE_ORDER == __BIG_ENDIAN
 51     unsigned sign : 1;
 52     unsigned exp  : _FP_EXPBITS_S;
 53     unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
 54 #else
 55     unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
 56     unsigned exp  : _FP_EXPBITS_S;
 57     unsigned sign : 1;
 58 #endif
 59   } bits __attribute__((packed));
 60 };
 61 
 62 #define FP_DECL_S(X)            _FP_DECL(1,X)
 63 #define FP_UNPACK_RAW_S(X,val)  _FP_UNPACK_RAW_1(S,X,val)
 64 #define FP_UNPACK_RAW_SP(X,val) _FP_UNPACK_RAW_1_P(S,X,val)
 65 #define FP_PACK_RAW_S(val,X)    _FP_PACK_RAW_1(S,val,X)
 66 #define FP_PACK_RAW_SP(val,X)           \
 67   do {                                  \
 68     if (!FP_INHIBIT_RESULTS)            \
 69       _FP_PACK_RAW_1_P(S,val,X);        \
 70   } while (0)
 71 
 72 #define FP_UNPACK_S(X,val)              \
 73   do {                                  \
 74     _FP_UNPACK_RAW_1(S,X,val);          \
 75     _FP_UNPACK_CANONICAL(S,1,X);        \
 76   } while (0)
 77 
 78 #define FP_UNPACK_SP(X,val)             \
 79   do {                                  \
 80     _FP_UNPACK_RAW_1_P(S,X,val);        \
 81     _FP_UNPACK_CANONICAL(S,1,X);        \
 82   } while (0)
 83 
 84 #define FP_PACK_S(val,X)                \
 85   do {                                  \
 86     _FP_PACK_CANONICAL(S,1,X);          \
 87     _FP_PACK_RAW_1(S,val,X);            \
 88   } while (0)
 89 
 90 #define FP_PACK_SP(val,X)               \
 91   do {                                  \
 92     _FP_PACK_CANONICAL(S,1,X);          \
 93     if (!FP_INHIBIT_RESULTS)            \
 94       _FP_PACK_RAW_1_P(S,val,X);        \
 95   } while (0)
 96 
 97 #define FP_ISSIGNAN_S(X)                _FP_ISSIGNAN(S,1,X)
 98 #define FP_NEG_S(R,X)                   _FP_NEG(S,1,R,X)
 99 #define FP_ADD_S(R,X,Y)                 _FP_ADD(S,1,R,X,Y)
100 #define FP_SUB_S(R,X,Y)                 _FP_SUB(S,1,R,X,Y)
101 #define FP_MUL_S(R,X,Y)                 _FP_MUL(S,1,R,X,Y)
102 #define FP_DIV_S(R,X,Y)                 _FP_DIV(S,1,R,X,Y)
103 #define FP_SQRT_S(R,X)                  _FP_SQRT(S,1,R,X)
104 #define _FP_SQRT_MEAT_S(R,S,T,X,Q)      _FP_SQRT_MEAT_1(R,S,T,X,Q)
105 
106 #define FP_CMP_S(r,X,Y,un)      _FP_CMP(S,1,r,X,Y,un)
107 #define FP_CMP_EQ_S(r,X,Y)      _FP_CMP_EQ(S,1,r,X,Y)
108 
109 #define FP_TO_INT_S(r,X,rsz,rsg)        _FP_TO_INT(S,1,r,X,rsz,rsg)
110 #define FP_TO_INT_ROUND_S(r,X,rsz,rsg)  _FP_TO_INT_ROUND(S,1,r,X,rsz,rsg)
111 #define FP_FROM_INT_S(X,r,rs,rt)        _FP_FROM_INT(S,1,X,r,rs,rt)
112 
113 #define _FP_FRAC_HIGH_S(X)      _FP_FRAC_HIGH_1(X)
114 #define _FP_FRAC_HIGH_RAW_S(X)  _FP_FRAC_HIGH_1(X)
115 
116 #endif /* __MATH_EMU_SINGLE_H__ */
117 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp