1/* Software floating-point emulation. 2 Truncate IEEE single into IEEE half. 3 Copyright (C) 2021 Free Software Foundation, Inc. 4 This file is part of the GNU C Library. 5 6 The GNU C Library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 In addition to the permissions in the GNU Lesser General Public 12 License, the Free Software Foundation gives you unlimited 13 permission to link the compiled version of this file into 14 combinations with other programs, and to distribute those 15 combinations without any restriction coming from the use of this 16 file. (The Lesser General Public License restrictions do apply in 17 other respects; for example, they cover modification of the file, 18 and distribution when not linked into a combine executable.) 19 20 The GNU C Library is distributed in the hope that it will be useful, 21 but WITHOUT ANY WARRANTY; without even the implied warranty of 22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23 Lesser General Public License for more details. 24 25 You should have received a copy of the GNU Lesser General Public 26 License along with the GNU C Library; if not, see 27 <http://www.gnu.org/licenses/>. */ 28 29#include "soft-fp.h" 30#include "half.h" 31#include "single.h" 32 33HFtype 34__truncsfhf2 (SFtype a) 35{ 36 FP_DECL_EX; 37 FP_DECL_S (A); 38 FP_DECL_H (R); 39 HFtype r; 40 41 FP_INIT_ROUNDMODE; 42 FP_UNPACK_SEMIRAW_S (A, a); 43 FP_TRUNC (H, S, 1, 1, R, A); 44 FP_PACK_SEMIRAW_H (r, R); 45 FP_HANDLE_EXCEPTIONS; 46 47 return r; 48} 49