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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | /* Software floating-point emulation. Definitions for IEEE Quad Precision. Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson (rth@cygnus.com), Jakub Jelinek (jj@ultra.linux.cz), David S. Miller (davem@redhat.com) and Peter Maydell (pmaydell@chiark.greenend.org.uk). The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __MATH_EMU_QUAD_H__ #define __MATH_EMU_QUAD_H__ #if _FP_W_TYPE_SIZE < 32 #error "Here's a nickel, kid. Go buy yourself a real computer." #endif #if _FP_W_TYPE_SIZE < 64 #define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE) #else #define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE) #endif #define _FP_FRACBITS_Q 113 #define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q) #define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q) #define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q) #define _FP_EXPBITS_Q 15 #define _FP_EXPBIAS_Q 16383 #define _FP_EXPMAX_Q 32767 #define _FP_QNANBIT_Q \ ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE) #define _FP_IMPLBIT_Q \ ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE) #define _FP_OVERFLOW_Q \ ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE)) #if _FP_W_TYPE_SIZE < 64 union _FP_UNION_Q { long double flt; struct { #if __BYTE_ORDER == __BIG_ENDIAN unsigned sign : 1; unsigned exp : _FP_EXPBITS_Q; unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); unsigned long frac2 : _FP_W_TYPE_SIZE; unsigned long frac1 : _FP_W_TYPE_SIZE; unsigned long frac0 : _FP_W_TYPE_SIZE; #else unsigned long frac0 : _FP_W_TYPE_SIZE; unsigned long frac1 : _FP_W_TYPE_SIZE; unsigned long frac2 : _FP_W_TYPE_SIZE; unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); unsigned exp : _FP_EXPBITS_Q; unsigned sign : 1; #endif /* not bigendian */ } bits __attribute__((packed)); }; #define FP_DECL_Q(X) _FP_DECL(4,X) #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val) #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val) #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X) #define FP_PACK_RAW_QP(val,X) \ do { \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_4_P(Q,val,X); \ } while (0) #define FP_UNPACK_Q(X,val) \ do { \ _FP_UNPACK_RAW_4(Q,X,val); \ _FP_UNPACK_CANONICAL(Q,4,X); \ } while (0) #define FP_UNPACK_QP(X,val) \ do { \ _FP_UNPACK_RAW_4_P(Q,X,val); \ _FP_UNPACK_CANONICAL(Q,4,X); \ } while (0) #define FP_PACK_Q(val,X) \ do { \ _FP_PACK_CANONICAL(Q,4,X); \ _FP_PACK_RAW_4(Q,val,X); \ } while (0) #define FP_PACK_QP(val,X) \ do { \ _FP_PACK_CANONICAL(Q,4,X); \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_4_P(Q,val,X); \ } while (0) #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X) #define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X) #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y) #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y) #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y) #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y) #define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X) #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q) #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un) #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y) #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg) #define FP_TO_INT_ROUND_Q(r,X,rsz,rsg) _FP_TO_INT_ROUND(Q,4,r,X,rsz,rsg) #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt) #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X) #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X) #else /* not _FP_W_TYPE_SIZE < 64 */ union _FP_UNION_Q { long double flt /* __attribute__((mode(TF))) */ ; struct { #if __BYTE_ORDER == __BIG_ENDIAN unsigned sign : 1; unsigned exp : _FP_EXPBITS_Q; unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE; unsigned long frac0 : _FP_W_TYPE_SIZE; #else unsigned long frac0 : _FP_W_TYPE_SIZE; unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE; unsigned exp : _FP_EXPBITS_Q; unsigned sign : 1; #endif } bits; }; #define FP_DECL_Q(X) _FP_DECL(2,X) #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val) #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val) #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X) #define FP_PACK_RAW_QP(val,X) \ do { \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_2_P(Q,val,X); \ } while (0) #define FP_UNPACK_Q(X,val) \ do { \ _FP_UNPACK_RAW_2(Q,X,val); \ _FP_UNPACK_CANONICAL(Q,2,X); \ } while (0) #define FP_UNPACK_QP(X,val) \ do { \ _FP_UNPACK_RAW_2_P(Q,X,val); \ _FP_UNPACK_CANONICAL(Q,2,X); \ } while (0) #define FP_PACK_Q(val,X) \ do { \ _FP_PACK_CANONICAL(Q,2,X); \ _FP_PACK_RAW_2(Q,val,X); \ } while (0) #define FP_PACK_QP(val,X) \ do { \ _FP_PACK_CANONICAL(Q,2,X); \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_2_P(Q,val,X); \ } while (0) #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X) #define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X) #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y) #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y) #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y) #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y) #define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X) #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un) #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y) #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg) #define FP_TO_INT_ROUND_Q(r,X,rsz,rsg) _FP_TO_INT_ROUND(Q,2,r,X,rsz,rsg) #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt) #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X) #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X) #endif /* not _FP_W_TYPE_SIZE < 64 */ #endif /* __MATH_EMU_QUAD_H__ */ |