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      1 /* Soft-FP definitions for TI C6X.
      2    Copyright (C) 2010-2022 Free Software Foundation, Inc.
      3 
      4    This files is free software; you can redistribute it and/or
      5    modify it under the terms of the GNU Lesser General Public
      6    License as published by the Free Software Foundation; either
      7    version 2.1 of the License, or (at your option) any later version.
      8 
      9    In addition to the permissions in the GNU Lesser General Public
     10    License, the Free Software Foundation gives you unlimited
     11    permission to link the compiled version of this file into
     12    combinations with other programs, and to distribute those
     13    combinations without any restriction coming from the use of this
     14    file.  (The Lesser General Public License restrictions do apply in
     15    other respects; for example, they cover modification of the file,
     16    and distribution when not linked into a combine executable.)
     17 
     18    This file is distributed in the hope that it will be useful,
     19    but WITHOUT ANY WARRANTY; without even the implied warranty of
     20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21    Lesser General Public License for more details.
     22 
     23    You should have received a copy of the GNU Lesser General Public
     24    License along with GCC; see the file COPYING.LIB.  If not see
     25    <http://www.gnu.org/licenses/>.  */
     26 
     27 #define _FP_W_TYPE_SIZE		32
     28 #define _FP_W_TYPE		unsigned long
     29 #define _FP_WS_TYPE		signed long
     30 #define _FP_I_TYPE		long
     31 
     32 #define _FP_MUL_MEAT_S(R,X,Y)				\
     33   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
     34 #define _FP_MUL_MEAT_D(R,X,Y)				\
     35   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
     36 #define _FP_MUL_MEAT_Q(R,X,Y)				\
     37   _FP_MUL_MEAT_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_H		((_FP_QNANBIT_H << 1) - 1)
     44 #define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
     45 #define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
     46 #define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
     47 #define _FP_NANSIGN_H		0
     48 #define _FP_NANSIGN_S		0
     49 #define _FP_NANSIGN_D		0
     50 #define _FP_NANSIGN_Q		0
     51 
     52 #define _FP_KEEPNANFRACP 1
     53 #define _FP_QNANNEGATEDP 0
     54 
     55 /* Someone please check this.  */
     56 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
     57   do {								\
     58     if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)		\
     59 	&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))	\
     60       {								\
     61 	R##_s = Y##_s;						\
     62 	_FP_FRAC_COPY_##wc(R,Y);				\
     63       }								\
     64     else							\
     65       {								\
     66 	R##_s = X##_s;						\
     67 	_FP_FRAC_COPY_##wc(R,X);				\
     68       }								\
     69     R##_c = FP_CLS_NAN;						\
     70   } while (0)
     71 
     72 #define	__LITTLE_ENDIAN	1234
     73 #define	__BIG_ENDIAN	4321
     74 
     75 #if defined _BIG_ENDIAN
     76 # define __BYTE_ORDER __BIG_ENDIAN
     77 #else
     78 # define __BYTE_ORDER __LITTLE_ENDIAN
     79 #endif
     80 
     81 /* Not checked.  */
     82 #define _FP_TININESS_AFTER_ROUNDING 0
     83 
     84 
     85 /* Define ALIASNAME as a strong alias for NAME.  */
     86 # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
     87 # define _strong_alias(name, aliasname) \
     88   extern __typeof (name) aliasname __attribute__ ((alias (#name)));
     89 
     90 /* Rename helper functions to the names specified in the C6000 ELF ABI.  */
     91 #define __fixdfsi     __c6xabi_fixdi
     92 #define __fixsfsi     __c6xabi_fixfi
     93 #define __floatsidf   __c6xabi_fltid
     94 #define __floatunsidf __c6xabi_fltud
     95 #define __floatsisf   __c6xabi_fltif
     96 #define __floatunsisf __c6xabi_fltuf
     97 #define __truncdfsf2  __c6xabi_cvtdf
     98 #define __extendsfdf2 __c6xabi_cvtfd
     99 #define __adddf3      __c6xabi_addd
    100 #define __subdf3      __c6xabi_subd
    101 #define __muldf3      __c6xabi_mpyd
    102 #define __divdf3      __c6xabi_divd
    103 #define __negdf2      __c6xabi_negd
    104 #define __absdf2      __c6xabi_absd
    105 #define __addsf3      __c6xabi_addf
    106 #define __subsf3      __c6xabi_subf
    107 #define __mulsf3      __c6xabi_mpyf
    108 #define __divsf3      __c6xabi_divf
    109 #define __negsf2      __c6xabi_negf
    110 #define __abssf2      __c6xabi_absf
    111 #define __lesf2       __c6xabi_cmpf
    112 #define __ledf2       __c6xabi_cmpd
    113 #define __ltsf2       __gnu_ltsf2
    114 #define __ltdf2       __gnu_ltdf2
    115 #define __gesf2       __gnu_gesf2
    116 #define __gedf2       __gnu_gedf2
    117 #define __gtsf2       __gnu_gtsf2
    118 #define __gtdf2       __gnu_gtdf2
    119 #define __eqsf2       __gnu_eqsf2
    120 #define __eqdf2       __gnu_eqdf2
    121 #define __nesf2       __c6xabi_neqf
    122 #define __nedf2       __c6xabi_neqd
    123 #define __unordsf2    __c6xabi_unordf
    124 #define __unorddf2    __c6xabi_unordd
    125