diff options
Diffstat (limited to 'soft-fp/op-1.h')
| -rw-r--r-- | soft-fp/op-1.h | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/soft-fp/op-1.h b/soft-fp/op-1.h index 367ff2274b..35cd0ba7bb 100644 --- a/soft-fp/op-1.h +++ b/soft-fp/op-1.h @@ -1,6 +1,6 @@ /* Software floating-point emulation. Basic one-word fraction declaration and manipulation. - Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson (rth@cygnus.com), Jakub Jelinek (jj@ultra.linux.cz), @@ -12,6 +12,15 @@ License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + The GNU C Library 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 @@ -19,8 +28,8 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ #define _FP_FRAC_DECL_1(X) _FP_W_TYPE X##_f #define _FP_FRAC_COPY_1(D,S) (D##_f = S##_f) @@ -40,8 +49,16 @@ #define _FP_FRAC_SRL_1(X,N) (X##_f >>= N) /* Right shift with sticky-lsb. */ +#define _FP_FRAC_SRST_1(X,S,N,sz) __FP_FRAC_SRST_1(X##_f, S, N, sz) #define _FP_FRAC_SRS_1(X,N,sz) __FP_FRAC_SRS_1(X##_f, N, sz) +#define __FP_FRAC_SRST_1(X,S,N,sz) \ +do { \ + S = (__builtin_constant_p(N) && (N) == 1 \ + ? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0); \ + X = X >> (N); \ +} while (0) + #define __FP_FRAC_SRS_1(X,N,sz) \ (X = (X >> (N) | (__builtin_constant_p(N) && (N) == 1 \ ? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0))) @@ -282,17 +299,4 @@ * Convert FP values between word sizes */ -#define _FP_FRAC_CONV_1_1(dfs, sfs, D, S) \ - do { \ - D##_f = S##_f; \ - if (_FP_WFRACBITS_##sfs > _FP_WFRACBITS_##dfs) \ - { \ - if (S##_c != FP_CLS_NAN) \ - _FP_FRAC_SRS_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs), \ - _FP_WFRACBITS_##sfs); \ - else \ - _FP_FRAC_SRL_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs)); \ - } \ - else \ - D##_f <<= _FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs; \ - } while (0) +#define _FP_FRAC_COPY_1_1(D, S) (D##_f = S##_f) |