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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 | /* Machine-dependent software floating-point definitions. Sparc64 version. Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. 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. */ #define _FP_W_TYPE_SIZE 64 #define _FP_W_TYPE unsigned long #define _FP_WS_TYPE signed long #define _FP_I_TYPE long #define _FP_MUL_MEAT_S(R,X,Y) _FP_MUL_MEAT_1_imm(S,R,X,Y) #define _FP_MUL_MEAT_D(R,X,Y) _FP_MUL_MEAT_1_wide(D,R,X,Y,umul_ppmm) #define _FP_MUL_MEAT_Q(R,X,Y) _FP_MUL_MEAT_2_wide(Q,R,X,Y,umul_ppmm) #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y) #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv_64(Q,R,X,Y) #define _FP_NANFRAC_S _FP_QNANBIT_S #define _FP_NANFRAC_D _FP_QNANBIT_D #define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0 #define _FP_KEEPNANFRACP 1 #define _FP_CHOOSENAN(fs, wc, R, X, Y) \ do { \ R##_s = Y##_s; \ _FP_FRAC_COPY_##wc(R,Y); \ R##_c = FP_CLS_NAN; \ } while (0) #define __FP_UNPACK_RAW_1(fs, X, val) \ do { \ union _FP_UNION_##fs *_flo = \ (union _FP_UNION_##fs *)val; \ \ X##_f = _flo->bits.frac; \ X##_e = _flo->bits.exp; \ X##_s = _flo->bits.sign; \ } while (0) #define __FP_UNPACK_RAW_2(fs, X, val) \ do { \ union _FP_UNION_##fs *_flo = \ (union _FP_UNION_##fs *)val; \ \ X##_f0 = _flo->bits.frac0; \ X##_f1 = _flo->bits.frac1; \ X##_e = _flo->bits.exp; \ X##_s = _flo->bits.sign; \ } while (0) #define __FP_UNPACK_S(X,val) \ do { \ __FP_UNPACK_RAW_1(S,X,val); \ _FP_UNPACK_CANONICAL(S,1,X); \ } while (0) #define __FP_UNPACK_D(X,val) \ do { \ __FP_UNPACK_RAW_1(D,X,val); \ _FP_UNPACK_CANONICAL(D,1,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_PACK_RAW_1(fs, val, X) \ do { \ union _FP_UNION_##fs *_flo = \ (union _FP_UNION_##fs *)val; \ \ _flo->bits.frac = X##_f; \ _flo->bits.exp = X##_e; \ _flo->bits.sign = X##_s; \ } while (0) #define __FP_PACK_RAW_2(fs, val, X) \ do { \ union _FP_UNION_##fs *_flo = \ (union _FP_UNION_##fs *)val; \ \ _flo->bits.frac0 = X##_f0; \ _flo->bits.frac1 = X##_f1; \ _flo->bits.exp = X##_e; \ _flo->bits.sign = X##_s; \ } while (0) #include <linux/kernel.h> #include <linux/sched.h> /* We only actually write to the destination register * if exceptions signalled (if any) will not trap. */ #define __FPU_TEM \ (((current->tss.xfsr[0])>>23)&0x1f) #define __FPU_TRAP_P(bits) \ ((__FPU_TEM & (bits)) != 0) #define __FP_PACK_S(val,X) \ ({ int __exc = _FP_PACK_CANONICAL(S,1,X); \ if(!__exc || !__FPU_TRAP_P(__exc)) \ __FP_PACK_RAW_1(S,val,X); \ __exc; \ }) #define __FP_PACK_D(val,X) \ ({ int __exc = _FP_PACK_CANONICAL(D,1,X); \ if(!__exc || !__FPU_TRAP_P(__exc)) \ __FP_PACK_RAW_1(D,val,X); \ __exc; \ }) #define __FP_PACK_Q(val,X) \ ({ int __exc = _FP_PACK_CANONICAL(Q,2,X); \ if(!__exc || !__FPU_TRAP_P(__exc)) \ __FP_PACK_RAW_2(Q,val,X); \ __exc; \ }) /* Obtain the current rounding mode. */ #define FP_ROUNDMODE ((current->tss.xfsr[0] >> 30) & 0x3) #include <linux/types.h> #include <asm/byteorder.h> #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ __asm__ ("addcc %4,%5,%1 add %2,%3,%0 bcs,a,pn %%xcc, 1f add %0, 1, %0 1:" \ : "=r" ((UDItype)(sh)), \ "=&r" ((UDItype)(sl)) \ : "r" ((UDItype)(ah)), \ "r" ((UDItype)(bh)), \ "r" ((UDItype)(al)), \ "r" ((UDItype)(bl)) \ : "cc") #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ __asm__ ("subcc %4,%5,%1 sub %2,%3,%0 bcs,a,pn %%xcc, 1f sub %0, 1, %0 1:" \ : "=r" ((UDItype)(sh)), \ "=&r" ((UDItype)(sl)) \ : "r" ((UDItype)(ah)), \ "r" ((UDItype)(bh)), \ "r" ((UDItype)(al)), \ "r" ((UDItype)(bl)) \ : "cc") #define umul_ppmm(wh, wl, u, v) \ do { \ __asm__ ("mulx %2,%3,%1 srlx %2,32,%%g1 srl %3,0,%%g2 mulx %%g1,%%g2,%%g3 srlx %3,32,%%g1 srl %2,0,%%g2 mulx %%g1,%%g2,%%g2 srlx %2,32,%%g1 add %%g2,%%g3,%%g3 srlx %3,32,%%g2 mulx %%g1,%%g2,%%g1 srlx %%g3,32,%%g2 add %%g1,%%g2,%0" \ : "=r" ((UDItype)(wh)), \ "=&r" ((UDItype)(wl)) \ : "r" ((UDItype)(u)), \ "r" ((UDItype)(v)) \ : "g1", "g2", "g3", "cc"); \ } while (0) #define udiv_qrnnd(q, r, n1, n0, d) \ do { \ UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \ __d1 = (d >> 32); \ __d0 = (USItype)d; \ \ __r1 = (n1) % __d1; \ __q1 = (n1) / __d1; \ __m = (UWtype) __q1 * __d0; \ __r1 = (__r1 << 32) | (n0 >> 32); \ if (__r1 < __m) \ { \ __q1--, __r1 += (d); \ if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \ if (__r1 < __m) \ __q1--, __r1 += (d); \ } \ __r1 -= __m; \ \ __r0 = __r1 % __d1; \ __q0 = __r1 / __d1; \ __m = (UWtype) __q0 * __d0; \ __r0 = (__r0 << 32) | ((USItype)n0); \ if (__r0 < __m) \ { \ __q0--, __r0 += (d); \ if (__r0 >= (d)) \ if (__r0 < __m) \ __q0--, __r0 += (d); \ } \ __r0 -= __m; \ \ (q) = (UWtype) (__q1 << 32) | __q0; \ (r) = __r0; \ } while (0) #define UDIV_NEEDS_NORMALIZATION 1 #define abort() \ return 0 #ifdef __BIG_ENDIAN #define __BYTE_ORDER __BIG_ENDIAN #else #define __BYTE_ORDER __LITTLE_ENDIAN #endif /* Exception flags. */ #define EFLAG_INVALID (1 << 4) #define EFLAG_OVERFLOW (1 << 3) #define EFLAG_UNDERFLOW (1 << 2) #define EFLAG_DIVZERO (1 << 1) #define EFLAG_INEXACT (1 << 0) |