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Diffstat (limited to 'gcc/dfp.h')
| -rw-r--r-- | gcc/dfp.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/dfp.h b/gcc/dfp.h new file mode 100644 index 00000000000..d7f5b01cc7d --- /dev/null +++ b/gcc/dfp.h @@ -0,0 +1,47 @@ +/* Decimal floating point support functions for GNU compiler. + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +GCC 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 General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ + +#ifndef GCC_DFP_H +#define GCC_DFP_H + +/* Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754R encoded values. */ +void encode_decimal32 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); +void encode_decimal64 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); +void decode_decimal128 (const struct real_format *, REAL_VALUE_TYPE *, const long *); + +/* Decode 32/64/128-bit IEEE 754R encoded values into REAL_VALUE_TYPEs. */ +void decode_decimal32 (const struct real_format *, REAL_VALUE_TYPE *, const long *); +void decode_decimal64 (const struct real_format *, REAL_VALUE_TYPE *, const long *); +void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); + +/* Arithmetic and conversion functions. */ +int decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int); +void decimal_real_from_string (REAL_VALUE_TYPE *, const char *); +void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *); +void decimal_real_convert (REAL_VALUE_TYPE *, enum machine_mode, const REAL_VALUE_TYPE *); +void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int); +void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *); +bool decimal_real_arithmetic (REAL_VALUE_TYPE *, int, const REAL_VALUE_TYPE *, + const REAL_VALUE_TYPE *); +void decimal_real_maxval (REAL_VALUE_TYPE *, int, enum machine_mode); +void decimal_real_to_integer2 (HOST_WIDE_INT *, HOST_WIDE_INT *, const REAL_VALUE_TYPE *); +HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *); + +#endif /* GCC_DFP_H */ |