/* Software floating-point emulation.
Definitions for IEEE Quad Precision.
- Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+ Copyright (C) 1997-2014 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),
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
Lesser General Public License for more details.
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. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#if _FP_W_TYPE_SIZE < 32
-#error "Here's a nickel, kid. Go buy yourself a real computer."
+# error "Here's a nickel, kid. Go buy yourself a real computer."
#endif
#if _FP_W_TYPE_SIZE < 64
-#define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE)
+# define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE)
+# define _FP_FRACTBITS_DW_Q (8*_FP_W_TYPE_SIZE)
#else
-#define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE)
+# define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE)
+# define _FP_FRACTBITS_DW_Q (4*_FP_W_TYPE_SIZE)
#endif
#define _FP_FRACBITS_Q 113
#define _FP_EXPMAX_Q 32767
#define _FP_QNANBIT_Q \
- ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE)
+ ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE)
+#define _FP_QNANBIT_SH_Q \
+ ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
#define _FP_IMPLBIT_Q \
- ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE)
+ ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE)
+#define _FP_IMPLBIT_SH_Q \
+ ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
#define _FP_OVERFLOW_Q \
- ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE))
+ ((_FP_W_TYPE) 1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE))
+
+#define _FP_WFRACBITS_DW_Q (2 * _FP_WFRACBITS_Q)
+#define _FP_WFRACXBITS_DW_Q (_FP_FRACTBITS_DW_Q - _FP_WFRACBITS_DW_Q)
+#define _FP_HIGHBIT_DW_Q \
+ ((_FP_W_TYPE) 1 << (_FP_WFRACBITS_DW_Q - 1) % _FP_W_TYPE_SIZE)
+
+typedef float TFtype __attribute__ ((mode (TF)));
#if _FP_W_TYPE_SIZE < 64
union _FP_UNION_Q
{
- long double flt;
- struct
- {
-#if __BYTE_ORDER == __BIG_ENDIAN
- unsigned sign : 1;
- unsigned exp : _FP_EXPBITS_Q;
- unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
- unsigned long frac2 : _FP_W_TYPE_SIZE;
- unsigned long frac1 : _FP_W_TYPE_SIZE;
- unsigned long frac0 : _FP_W_TYPE_SIZE;
-#else
- unsigned long frac0 : _FP_W_TYPE_SIZE;
- unsigned long frac1 : _FP_W_TYPE_SIZE;
- unsigned long frac2 : _FP_W_TYPE_SIZE;
- unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
- unsigned exp : _FP_EXPBITS_Q;
- unsigned sign : 1;
-#endif /* not bigendian */
- } bits __attribute__((packed));
+ TFtype flt;
+ struct _FP_STRUCT_LAYOUT
+ {
+# if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_Q;
+ unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
+ unsigned long frac2 : _FP_W_TYPE_SIZE;
+ unsigned long frac1 : _FP_W_TYPE_SIZE;
+ unsigned long frac0 : _FP_W_TYPE_SIZE;
+# else
+ unsigned long frac0 : _FP_W_TYPE_SIZE;
+ unsigned long frac1 : _FP_W_TYPE_SIZE;
+ unsigned long frac2 : _FP_W_TYPE_SIZE;
+ unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
+ unsigned exp : _FP_EXPBITS_Q;
+ unsigned sign : 1;
+# endif /* not bigendian */
+ } bits __attribute__ ((packed));
};
-#define FP_DECL_Q(X) _FP_DECL(4,X)
-#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val)
-#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val)
-#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X)
-#define FP_PACK_RAW_QP(val,X) \
- do { \
- if (!FP_INHIBIT_RESULTS) \
- _FP_PACK_RAW_4_P(Q,val,X); \
- } while (0)
-
-#define FP_UNPACK_Q(X,val) \
- do { \
- _FP_UNPACK_RAW_4(Q,X,val); \
- _FP_UNPACK_CANONICAL(Q,4,X); \
- } while (0)
-
-#define FP_UNPACK_QP(X,val) \
- do { \
- _FP_UNPACK_RAW_4_P(Q,X,val); \
- _FP_UNPACK_CANONICAL(Q,4,X); \
- } while (0)
-
-#define FP_PACK_Q(val,X) \
- do { \
- _FP_PACK_CANONICAL(Q,4,X); \
- _FP_PACK_RAW_4(Q,val,X); \
- } while (0)
-
-#define FP_PACK_QP(val,X) \
- do { \
- _FP_PACK_CANONICAL(Q,4,X); \
- if (!FP_INHIBIT_RESULTS) \
- _FP_PACK_RAW_4_P(Q,val,X); \
- } while (0)
-
-#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X)
-#define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X)
-#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y)
-#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y)
-#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y)
-#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y)
-#define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X)
-#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q)
-
-#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un)
-#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y)
-
-#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg)
-#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt)
-
-#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X)
-#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X)
+# define FP_DECL_Q(X) _FP_DECL (4, X)
+# define FP_UNPACK_RAW_Q(X, val) _FP_UNPACK_RAW_4 (Q, X, val)
+# define FP_UNPACK_RAW_QP(X, val) _FP_UNPACK_RAW_4_P (Q, X, val)
+# define FP_PACK_RAW_Q(val, X) _FP_PACK_RAW_4 (Q, val, X)
+# define FP_PACK_RAW_QP(val, X) \
+ do \
+ { \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_4_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_Q(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_4 (Q, X, val); \
+ _FP_UNPACK_CANONICAL (Q, 4, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_QP(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_4_P (Q, X, val); \
+ _FP_UNPACK_CANONICAL (Q, 4, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_SEMIRAW_Q(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_4 (Q, X, val); \
+ _FP_UNPACK_SEMIRAW (Q, 4, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_SEMIRAW_QP(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_4_P (Q, X, val); \
+ _FP_UNPACK_SEMIRAW (Q, 4, X); \
+ } \
+ while (0)
+
+# define FP_PACK_Q(val, X) \
+ do \
+ { \
+ _FP_PACK_CANONICAL (Q, 4, X); \
+ _FP_PACK_RAW_4 (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_QP(val, X) \
+ do \
+ { \
+ _FP_PACK_CANONICAL (Q, 4, X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_4_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_SEMIRAW_Q(val, X) \
+ do \
+ { \
+ _FP_PACK_SEMIRAW (Q, 4, X); \
+ _FP_PACK_RAW_4 (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_SEMIRAW_QP(val, X) \
+ do \
+ { \
+ _FP_PACK_SEMIRAW (Q, 4, X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_4_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN (Q, 4, X)
+# define FP_NEG_Q(R, X) _FP_NEG (Q, 4, R, X)
+# define FP_ADD_Q(R, X, Y) _FP_ADD (Q, 4, R, X, Y)
+# define FP_SUB_Q(R, X, Y) _FP_SUB (Q, 4, R, X, Y)
+# define FP_MUL_Q(R, X, Y) _FP_MUL (Q, 4, R, X, Y)
+# define FP_DIV_Q(R, X, Y) _FP_DIV (Q, 4, R, X, Y)
+# define FP_SQRT_Q(R, X) _FP_SQRT (Q, 4, R, X)
+# define _FP_SQRT_MEAT_Q(R, S, T, X, Q) _FP_SQRT_MEAT_4 (R, S, T, X, Q)
+# define FP_FMA_Q(R, X, Y, Z) _FP_FMA (Q, 4, 8, R, X, Y, Z)
+
+# define FP_CMP_Q(r, X, Y, un, ex) _FP_CMP (Q, 4, r, X, Y, un, ex)
+# define FP_CMP_EQ_Q(r, X, Y, ex) _FP_CMP_EQ (Q, 4, r, X, Y, ex)
+# define FP_CMP_UNORD_Q(r, X, Y, ex) _FP_CMP_UNORD (Q, 4, r, X, Y, ex)
+
+# define FP_TO_INT_Q(r, X, rsz, rsg) _FP_TO_INT (Q, 4, r, X, rsz, rsg)
+# define FP_FROM_INT_Q(X, r, rs, rt) _FP_FROM_INT (Q, 4, X, r, rs, rt)
+
+# define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4 (X)
+# define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4 (X)
+
+# define _FP_FRAC_HIGH_DW_Q(X) _FP_FRAC_HIGH_8 (X)
#else /* not _FP_W_TYPE_SIZE < 64 */
union _FP_UNION_Q
{
- long double flt /* __attribute__((mode(TF))) */ ;
- struct {
-#if __BYTE_ORDER == __BIG_ENDIAN
- unsigned sign : 1;
- unsigned exp : _FP_EXPBITS_Q;
- unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE;
- unsigned long frac0 : _FP_W_TYPE_SIZE;
-#else
- unsigned long frac0 : _FP_W_TYPE_SIZE;
- unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE;
- unsigned exp : _FP_EXPBITS_Q;
- unsigned sign : 1;
-#endif
+ TFtype flt /* __attribute__ ((mode (TF))) */ ;
+ struct _FP_STRUCT_LAYOUT
+ {
+ _FP_W_TYPE a, b;
+ } longs;
+ struct _FP_STRUCT_LAYOUT
+ {
+# if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_Q;
+ _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE;
+ _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE;
+# else
+ _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE;
+ _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE;
+ unsigned exp : _FP_EXPBITS_Q;
+ unsigned sign : 1;
+# endif
} bits;
};
-#define FP_DECL_Q(X) _FP_DECL(2,X)
-#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val)
-#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val)
-#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X)
-#define FP_PACK_RAW_QP(val,X) \
- do { \
- if (!FP_INHIBIT_RESULTS) \
- _FP_PACK_RAW_2_P(Q,val,X); \
- } while (0)
-
-#define FP_UNPACK_Q(X,val) \
- do { \
- _FP_UNPACK_RAW_2(Q,X,val); \
- _FP_UNPACK_CANONICAL(Q,2,X); \
- } while (0)
-
-#define FP_UNPACK_QP(X,val) \
- do { \
- _FP_UNPACK_RAW_2_P(Q,X,val); \
- _FP_UNPACK_CANONICAL(Q,2,X); \
- } while (0)
-
-#define FP_PACK_Q(val,X) \
- do { \
- _FP_PACK_CANONICAL(Q,2,X); \
- _FP_PACK_RAW_2(Q,val,X); \
- } while (0)
-
-#define FP_PACK_QP(val,X) \
- do { \
- _FP_PACK_CANONICAL(Q,2,X); \
- if (!FP_INHIBIT_RESULTS) \
- _FP_PACK_RAW_2_P(Q,val,X); \
- } while (0)
-
-#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X)
-#define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X)
-#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y)
-#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y)
-#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y)
-#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y)
-#define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X)
-#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q)
-
-#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un)
-#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y)
-
-#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg)
-#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt)
-
-#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X)
-#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X)
+# define FP_DECL_Q(X) _FP_DECL (2, X)
+# define FP_UNPACK_RAW_Q(X, val) _FP_UNPACK_RAW_2 (Q, X, val)
+# define FP_UNPACK_RAW_QP(X, val) _FP_UNPACK_RAW_2_P (Q, X, val)
+# define FP_PACK_RAW_Q(val, X) _FP_PACK_RAW_2 (Q, val, X)
+# define FP_PACK_RAW_QP(val, X) \
+ do \
+ { \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_Q(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_2 (Q, X, val); \
+ _FP_UNPACK_CANONICAL (Q, 2, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_QP(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_2_P (Q, X, val); \
+ _FP_UNPACK_CANONICAL (Q, 2, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_SEMIRAW_Q(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_2 (Q, X, val); \
+ _FP_UNPACK_SEMIRAW (Q, 2, X); \
+ } \
+ while (0)
+
+# define FP_UNPACK_SEMIRAW_QP(X, val) \
+ do \
+ { \
+ _FP_UNPACK_RAW_2_P (Q, X, val); \
+ _FP_UNPACK_SEMIRAW (Q, 2, X); \
+ } \
+ while (0)
+
+# define FP_PACK_Q(val, X) \
+ do \
+ { \
+ _FP_PACK_CANONICAL (Q, 2, X); \
+ _FP_PACK_RAW_2 (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_QP(val, X) \
+ do \
+ { \
+ _FP_PACK_CANONICAL (Q, 2, X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_SEMIRAW_Q(val, X) \
+ do \
+ { \
+ _FP_PACK_SEMIRAW (Q, 2, X); \
+ _FP_PACK_RAW_2 (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_PACK_SEMIRAW_QP(val, X) \
+ do \
+ { \
+ _FP_PACK_SEMIRAW (Q, 2, X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P (Q, val, X); \
+ } \
+ while (0)
+
+# define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN (Q, 2, X)
+# define FP_NEG_Q(R, X) _FP_NEG (Q, 2, R, X)
+# define FP_ADD_Q(R, X, Y) _FP_ADD (Q, 2, R, X, Y)
+# define FP_SUB_Q(R, X, Y) _FP_SUB (Q, 2, R, X, Y)
+# define FP_MUL_Q(R, X, Y) _FP_MUL (Q, 2, R, X, Y)
+# define FP_DIV_Q(R, X, Y) _FP_DIV (Q, 2, R, X, Y)
+# define FP_SQRT_Q(R, X) _FP_SQRT (Q, 2, R, X)
+# define _FP_SQRT_MEAT_Q(R, S, T, X, Q) _FP_SQRT_MEAT_2 (R, S, T, X, Q)
+# define FP_FMA_Q(R, X, Y, Z) _FP_FMA (Q, 2, 4, R, X, Y, Z)
+
+# define FP_CMP_Q(r, X, Y, un, ex) _FP_CMP (Q, 2, r, X, Y, un, ex)
+# define FP_CMP_EQ_Q(r, X, Y, ex) _FP_CMP_EQ (Q, 2, r, X, Y, ex)
+# define FP_CMP_UNORD_Q(r, X, Y, ex) _FP_CMP_UNORD (Q, 2, r, X, Y, ex)
+
+# define FP_TO_INT_Q(r, X, rsz, rsg) _FP_TO_INT (Q, 2, r, X, rsz, rsg)
+# define FP_FROM_INT_Q(X, r, rs, rt) _FP_FROM_INT (Q, 2, X, r, rs, rt)
+
+# define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2 (X)
+# define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2 (X)
+
+# define _FP_FRAC_HIGH_DW_Q(X) _FP_FRAC_HIGH_4 (X)
#endif /* not _FP_W_TYPE_SIZE < 64 */
projects / platform / upstream / glibc.git / blobdiff