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