1169689Skan/* Decimal floating point support functions for GNU compiler. 2169689Skan Copyright (C) 2005, 2006 Free Software Foundation, Inc. 3169689Skan 4169689SkanThis file is part of GCC. 5169689Skan 6169689SkanGCC is free software; you can redistribute it and/or modify it under 7169689Skanthe terms of the GNU General Public License as published by the Free 8169689SkanSoftware Foundation; either version 2, or (at your option) any later 9169689Skanversion. 10169689Skan 11169689SkanGCC is distributed in the hope that it will be useful, but WITHOUT ANY 12169689SkanWARRANTY; without even the implied warranty of MERCHANTABILITY or 13169689SkanFITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14169689Skanfor more details. 15169689Skan 16169689SkanYou should have received a copy of the GNU General Public License 17169689Skanalong with GCC; see the file COPYING. If not, write to the Free 18169689SkanSoftware Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 19169689Skan02110-1301, USA. */ 20169689Skan 21169689Skan#ifndef GCC_DFP_H 22169689Skan#define GCC_DFP_H 23169689Skan 24169689Skan/* Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754R encoded values. */ 25169689Skanvoid encode_decimal32 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 26169689Skanvoid encode_decimal64 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 27169689Skanvoid decode_decimal128 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 28169689Skan 29169689Skan/* Decode 32/64/128-bit IEEE 754R encoded values into REAL_VALUE_TYPEs. */ 30169689Skanvoid decode_decimal32 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 31169689Skanvoid decode_decimal64 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 32169689Skanvoid encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 33169689Skan 34169689Skan/* Arithmetic and conversion functions. */ 35169689Skanint decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int); 36169689Skanvoid decimal_real_from_string (REAL_VALUE_TYPE *, const char *); 37169689Skanvoid decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *); 38169689Skanvoid decimal_real_convert (REAL_VALUE_TYPE *, enum machine_mode, const REAL_VALUE_TYPE *); 39169689Skanvoid decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int); 40169689Skanvoid decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *); 41169689Skanbool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *, 42169689Skan const REAL_VALUE_TYPE *); 43169689Skanvoid decimal_real_maxval (REAL_VALUE_TYPE *, int, enum machine_mode); 44169689Skanvoid decimal_real_to_integer2 (HOST_WIDE_INT *, HOST_WIDE_INT *, const REAL_VALUE_TYPE *); 45169689SkanHOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *); 46169689Skan 47169689Skan#endif /* GCC_DFP_H */ 48