sysdeps/arc/sfp-machine.h

   1 /* Machine-dependent software floating-point definitions.  ARC version.
   2    Copyright (C) 2020-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19
  20 #define _FP_W_TYPE_SIZE         32
  21 #define _FP_W_TYPE              unsigned long
  22 #define _FP_WS_TYPE             signed long
  23 #define _FP_I_TYPE              long
  24
  25 #define _FP_MUL_MEAT_S(R,X,Y)                           \
  26   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
  27 #define _FP_MUL_MEAT_D(R,X,Y)                           \
  28   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
  29 #define _FP_MUL_MEAT_Q(R,X,Y)                           \
  30   _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
  31
  32 #define _FP_MUL_MEAT_DW_S(R,X,Y)                                \
  33   _FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
  34 #define _FP_MUL_MEAT_DW_D(R,X,Y)                                \
  35   _FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
  36 #define _FP_MUL_MEAT_DW_Q(R,X,Y)                                \
  37   _FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
  38
  39 #define _FP_DIV_MEAT_S(R,X,Y)   _FP_DIV_MEAT_1_loop(S,R,X,Y)
  40 #define _FP_DIV_MEAT_D(R,X,Y)   _FP_DIV_MEAT_2_udiv(D,R,X,Y)
  41 #define _FP_DIV_MEAT_Q(R,X,Y)   _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
  42
  43 #define _FP_NANFRAC_S           ((_FP_QNANBIT_S << 1) - 1)
  44 #define _FP_NANFRAC_D           ((_FP_QNANBIT_D << 1) - 1), -1
  45 #define _FP_NANFRAC_Q           ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
  46 #define _FP_NANSIGN_S           0
  47 #define _FP_NANSIGN_D           0
  48 #define _FP_NANSIGN_Q           0
  49
  50 #define _FP_KEEPNANFRACP 1
  51 #define _FP_QNANNEGATEDP 0
  52
  53 /* This is arbitrarily taken from the PowerPC version.  */
  54 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
  55   do {                                                          \
  56     if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
  57         && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
  58       {                                                         \
  59         R##_s = Y##_s;                                          \
  60         _FP_FRAC_COPY_##wc(R,Y);                                \
  61       }                                                         \
  62     else                                                        \
  63       {                                                         \
  64         R##_s = X##_s;                                          \
  65         _FP_FRAC_COPY_##wc(R,X);                                \
  66       }                                                         \
  67     R##_c = FP_CLS_NAN;                                         \
  68   } while (0)
  69
  70 #define _FP_TININESS_AFTER_ROUNDING 1