| /* Software floating-point emulation. |
| Convert a 128bit unsigned integer to _Decimal64. |
| |
| Copyright (C) 2023 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 3, 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "soft-fp.h" |
| #include "bitint.h" |
| |
| #if defined(__BITINT_MAXWIDTH__) && defined(__SIZEOF_INT128__) |
| extern _Decimal64 __bid_floatbitintdd (const UBILtype *, SItype); |
| extern _Decimal64 __bid_floatunstidd (UTItype); |
| |
| _Decimal64 |
| __bid_floatunstidd (UTItype i) |
| { |
| UBILtype ib[128 / BIL_TYPE_SIZE]; |
| #if BIL_TYPE_SIZE == 128 |
| ib[0] = i; |
| #elif BIL_TYPE_SIZE == 64 |
| ib[BITINT_END (0, 1)] = i >> 64; |
| ib[BITINT_END (1, 0)] = i; |
| #elif BIL_TYPE_SIZE == 32 |
| ib[BITINT_END (0, 3)] = i >> 96; |
| ib[BITINT_END (1, 2)] = i >> 64; |
| ib[BITINT_END (2, 1)] = i >> 32; |
| ib[BITINT_END (3, 0)] = i; |
| #else |
| #error Unsupported UBILtype |
| #endif |
| return __bid_floatbitintdd (ib, 128); |
| } |
| #endif |
