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a598e3fc | 1 | /* Software floating-point emulation: floating point extension. |
0ecb606c | 2 | Copyright (C) 1997,1999,2004,2006 Free Software Foundation, Inc. |
a598e3fc RH |
3 | This file is part of the GNU C Library. |
4 | Contributed by Richard Henderson (rth@cygnus.com) and | |
5 | Jakub Jelinek (jj@ultra.linux.cz). | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
18 | License along with the GNU C Library; if not, write to the Free | |
19 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
20 | 02111-1307 USA. */ | |
21 | ||
22 | #include "local-soft-fp.h" | |
23 | #include "double.h" | |
24 | ||
25 | /* Should never actually be used, since we're extending, but needed | |
26 | for linkage. */ | |
27 | #undef FP_ROUNDMODE | |
28 | #define FP_ROUNDMODE FP_RND_ZERO | |
29 | ||
30 | void | |
31 | _OtsConvertFloatTX(double a) | |
32 | { | |
33 | FP_DECL_EX; | |
34 | FP_DECL_D(A); | |
35 | FP_DECL_Q(C); | |
36 | FP_DECL_RETURN(c); | |
37 | ||
0ecb606c | 38 | FP_UNPACK_RAW_D(A, a); |
a598e3fc | 39 | #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q |
0ecb606c | 40 | FP_EXTEND(Q,D,4,2,C,A); |
a598e3fc | 41 | #else |
0ecb606c | 42 | FP_EXTEND(Q,D,2,1,C,A); |
a598e3fc | 43 | #endif |
0ecb606c | 44 | FP_PACK_RAW_Q(c, C); |
a598e3fc RH |
45 | FP_HANDLE_EXCEPTIONS; |
46 | ||
47 | FP_RETURN(c); | |
48 | } |