# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
-CSRC := brk.c __syscall_error.c qp_ops.c
+CSRC := brk.c __syscall_error.c
SSRC := \
__longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \
SSRC += fork.S vfork.S
endif
-
+CSRC += $(foreach f, \
+ q_div.c q_fle.c q_mul.c q_qtoll.c q_stoq.c \
+ mp_clz_tab.c q_dtoq.c q_flt.c q_neg.c q_qtos.c q_sub.c \
+ q_add.c q_feq.c q_fne.c q_qtod.c q_qtou.c q_ulltoq.c \
+ q_cmp.c q_fge.c q_itoq.c q_qtoull.c q_util.c \
+ q_cmpe.c q_fgt.c q_lltoq.c q_qtoi.c q_sqrt.c q_utoq.c, soft-fp/$(f))
--- /dev/null
+/* Software floating-point emulation.
+ Definitions for IEEE Double Precision
+ Copyright (C) 1997,1998,1999,2006,2007 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#if _FP_W_TYPE_SIZE < 32
+#error "Here's a nickel kid. Go buy yourself a real computer."
+#endif
+
+#if _FP_W_TYPE_SIZE < 64
+#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE)
+#else
+#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE
+#endif
+
+#define _FP_FRACBITS_D 53
+#define _FP_FRACXBITS_D (_FP_FRACTBITS_D - _FP_FRACBITS_D)
+#define _FP_WFRACBITS_D (_FP_WORKBITS + _FP_FRACBITS_D)
+#define _FP_WFRACXBITS_D (_FP_FRACTBITS_D - _FP_WFRACBITS_D)
+#define _FP_EXPBITS_D 11
+#define _FP_EXPBIAS_D 1023
+#define _FP_EXPMAX_D 2047
+
+#define _FP_QNANBIT_D \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE)
+#define _FP_QNANBIT_SH_D \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
+#define _FP_IMPLBIT_D \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE)
+#define _FP_IMPLBIT_SH_D \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
+#define _FP_OVERFLOW_D \
+ ((_FP_W_TYPE)1 << _FP_WFRACBITS_D % _FP_W_TYPE_SIZE)
+
+typedef float DFtype __attribute__((mode(DF)));
+
+#if _FP_W_TYPE_SIZE < 64
+
+union _FP_UNION_D
+{
+ DFtype flt;
+ struct {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_D;
+ unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
+ unsigned frac0 : _FP_W_TYPE_SIZE;
+#else
+ unsigned frac0 : _FP_W_TYPE_SIZE;
+ unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
+ unsigned exp : _FP_EXPBITS_D;
+ unsigned sign : 1;
+#endif
+ } bits __attribute__((packed));
+};
+
+#define FP_DECL_D(X) _FP_DECL(2,X)
+#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_2(D,X,val)
+#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_2_P(D,X,val)
+#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_2(D,val,X)
+#define FP_PACK_RAW_DP(val,X) \
+ do { \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P(D,val,X); \
+ } while (0)
+
+#define FP_UNPACK_D(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2(D,X,val); \
+ _FP_UNPACK_CANONICAL(D,2,X); \
+ } while (0)
+
+#define FP_UNPACK_DP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2_P(D,X,val); \
+ _FP_UNPACK_CANONICAL(D,2,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_D(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2(D,X,val); \
+ _FP_UNPACK_SEMIRAW(D,2,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_DP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2_P(D,X,val); \
+ _FP_UNPACK_SEMIRAW(D,2,X); \
+ } while (0)
+
+#define FP_PACK_D(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(D,2,X); \
+ _FP_PACK_RAW_2(D,val,X); \
+ } while (0)
+
+#define FP_PACK_DP(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(D,2,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P(D,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_D(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(D,2,X); \
+ _FP_PACK_RAW_2(D,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_DP(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(D,2,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_2_P(D,val,X); \
+ } while (0)
+
+#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,2,X)
+#define FP_NEG_D(R,X) _FP_NEG(D,2,R,X)
+#define FP_ADD_D(R,X,Y) _FP_ADD(D,2,R,X,Y)
+#define FP_SUB_D(R,X,Y) _FP_SUB(D,2,R,X,Y)
+#define FP_MUL_D(R,X,Y) _FP_MUL(D,2,R,X,Y)
+#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y)
+#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X)
+#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q)
+
+#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un)
+#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y)
+#define FP_CMP_UNORD_D(r,X,Y) _FP_CMP_UNORD(D,2,r,X,Y)
+
+#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,2,r,X,rsz,rsg)
+#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,2,X,r,rs,rt)
+
+#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_2(X)
+#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_2(X)
+
+#else
+
+union _FP_UNION_D
+{
+ DFtype flt;
+ struct {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_D;
+ _FP_W_TYPE frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
+#else
+ _FP_W_TYPE frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
+ unsigned exp : _FP_EXPBITS_D;
+ unsigned sign : 1;
+#endif
+ } bits __attribute__((packed));
+};
+
+#define FP_DECL_D(X) _FP_DECL(1,X)
+#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_1(D,X,val)
+#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_1_P(D,X,val)
+#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_1(D,val,X)
+#define FP_PACK_RAW_DP(val,X) \
+ do { \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(D,val,X); \
+ } while (0)
+
+#define FP_UNPACK_D(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1(D,X,val); \
+ _FP_UNPACK_CANONICAL(D,1,X); \
+ } while (0)
+
+#define FP_UNPACK_DP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1_P(D,X,val); \
+ _FP_UNPACK_CANONICAL(D,1,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_D(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2(1,X,val); \
+ _FP_UNPACK_SEMIRAW(D,1,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_DP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_2_P(1,X,val); \
+ _FP_UNPACK_SEMIRAW(D,1,X); \
+ } while (0)
+
+#define FP_PACK_D(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(D,1,X); \
+ _FP_PACK_RAW_1(D,val,X); \
+ } while (0)
+
+#define FP_PACK_DP(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(D,1,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(D,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_D(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(D,1,X); \
+ _FP_PACK_RAW_1(D,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_DP(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(D,1,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(D,val,X); \
+ } while (0)
+
+#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,1,X)
+#define FP_NEG_D(R,X) _FP_NEG(D,1,R,X)
+#define FP_ADD_D(R,X,Y) _FP_ADD(D,1,R,X,Y)
+#define FP_SUB_D(R,X,Y) _FP_SUB(D,1,R,X,Y)
+#define FP_MUL_D(R,X,Y) _FP_MUL(D,1,R,X,Y)
+#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y)
+#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X)
+#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)
+
+/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by
+ the target machine. */
+
+#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,1,r,X,Y,un)
+#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,1,r,X,Y)
+#define FP_CMP_UNORD_D(r,X,Y) _FP_CMP_UNORD(D,1,r,X,Y)
+
+#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,1,r,X,rsz,rsg)
+#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,1,X,r,rs,rt)
+
+#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_1(X)
+#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_1(X)
+
+#endif /* W_TYPE_SIZE < 64 */
--- /dev/null
+/* Software floating-point emulation.
+ Definitions for IEEE Extended Precision.
+ Copyright (C) 1999,2006,2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#if _FP_W_TYPE_SIZE < 32
+#error "Here's a nickel, kid. Go buy yourself a real computer."
+#endif
+
+#if _FP_W_TYPE_SIZE < 64
+#define _FP_FRACTBITS_E (4*_FP_W_TYPE_SIZE)
+#else
+#define _FP_FRACTBITS_E (2*_FP_W_TYPE_SIZE)
+#endif
+
+#define _FP_FRACBITS_E 64
+#define _FP_FRACXBITS_E (_FP_FRACTBITS_E - _FP_FRACBITS_E)
+#define _FP_WFRACBITS_E (_FP_WORKBITS + _FP_FRACBITS_E)
+#define _FP_WFRACXBITS_E (_FP_FRACTBITS_E - _FP_WFRACBITS_E)
+#define _FP_EXPBITS_E 15
+#define _FP_EXPBIAS_E 16383
+#define _FP_EXPMAX_E 32767
+
+#define _FP_QNANBIT_E \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-2) % _FP_W_TYPE_SIZE)
+#define _FP_QNANBIT_SH_E \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
+#define _FP_IMPLBIT_E \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-1) % _FP_W_TYPE_SIZE)
+#define _FP_IMPLBIT_SH_E \
+ ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
+#define _FP_OVERFLOW_E \
+ ((_FP_W_TYPE)1 << (_FP_WFRACBITS_E % _FP_W_TYPE_SIZE))
+
+typedef float XFtype __attribute__((mode(XF)));
+
+#if _FP_W_TYPE_SIZE < 64
+
+union _FP_UNION_E
+{
+ XFtype flt;
+ struct
+ {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned long pad1 : _FP_W_TYPE_SIZE;
+ unsigned long pad2 : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E);
+ unsigned long sign : 1;
+ unsigned long exp : _FP_EXPBITS_E;
+ 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 exp : _FP_EXPBITS_E;
+ unsigned sign : 1;
+#endif /* not bigendian */
+ } bits __attribute__((packed));
+};
+
+
+#define FP_DECL_E(X) _FP_DECL(4,X)
+
+#define FP_UNPACK_RAW_E(X, val) \
+ do { \
+ union _FP_UNION_E _flo; _flo.flt = (val); \
+ \
+ X##_f[2] = 0; X##_f[3] = 0; \
+ X##_f[0] = _flo.bits.frac0; \
+ X##_f[1] = _flo.bits.frac1; \
+ X##_e = _flo.bits.exp; \
+ X##_s = _flo.bits.sign; \
+ } while (0)
+
+#define FP_UNPACK_RAW_EP(X, val) \
+ do { \
+ union _FP_UNION_E *_flo = \
+ (union _FP_UNION_E *)(val); \
+ \
+ X##_f[2] = 0; X##_f[3] = 0; \
+ X##_f[0] = _flo->bits.frac0; \
+ X##_f[1] = _flo->bits.frac1; \
+ X##_e = _flo->bits.exp; \
+ X##_s = _flo->bits.sign; \
+ } while (0)
+
+#define FP_PACK_RAW_E(val, X) \
+ do { \
+ union _FP_UNION_E _flo; \
+ \
+ if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \
+ else X##_f[1] &= ~(_FP_IMPLBIT_E); \
+ _flo.bits.frac0 = X##_f[0]; \
+ _flo.bits.frac1 = X##_f[1]; \
+ _flo.bits.exp = X##_e; \
+ _flo.bits.sign = X##_s; \
+ \
+ (val) = _flo.flt; \
+ } while (0)
+
+#define FP_PACK_RAW_EP(val, X) \
+ do { \
+ if (!FP_INHIBIT_RESULTS) \
+ { \
+ union _FP_UNION_E *_flo = \
+ (union _FP_UNION_E *)(val); \
+ \
+ if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \
+ else X##_f[1] &= ~(_FP_IMPLBIT_E); \
+ _flo->bits.frac0 = X##_f[0]; \
+ _flo->bits.frac1 = X##_f[1]; \
+ _flo->bits.exp = X##_e; \
+ _flo->bits.sign = X##_s; \
+ } \
+ } while (0)
+
+#define FP_UNPACK_E(X,val) \
+ do { \
+ FP_UNPACK_RAW_E(X,val); \
+ _FP_UNPACK_CANONICAL(E,4,X); \
+ } while (0)
+
+#define FP_UNPACK_EP(X,val) \
+ do { \
+ FP_UNPACK_RAW_EP(X,val); \
+ _FP_UNPACK_CANONICAL(E,4,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_E(X,val) \
+ do { \
+ FP_UNPACK_RAW_E(X,val); \
+ _FP_UNPACK_SEMIRAW(E,4,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_EP(X,val) \
+ do { \
+ FP_UNPACK_RAW_EP(X,val); \
+ _FP_UNPACK_SEMIRAW(E,4,X); \
+ } while (0)
+
+#define FP_PACK_E(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(E,4,X); \
+ FP_PACK_RAW_E(val,X); \
+ } while (0)
+
+#define FP_PACK_EP(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(E,4,X); \
+ FP_PACK_RAW_EP(val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_E(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(E,4,X); \
+ FP_PACK_RAW_E(val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_EP(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(E,4,X); \
+ FP_PACK_RAW_EP(val,X); \
+ } while (0)
+
+#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,4,X)
+#define FP_NEG_E(R,X) _FP_NEG(E,4,R,X)
+#define FP_ADD_E(R,X,Y) _FP_ADD(E,4,R,X,Y)
+#define FP_SUB_E(R,X,Y) _FP_SUB(E,4,R,X,Y)
+#define FP_MUL_E(R,X,Y) _FP_MUL(E,4,R,X,Y)
+#define FP_DIV_E(R,X,Y) _FP_DIV(E,4,R,X,Y)
+#define FP_SQRT_E(R,X) _FP_SQRT(E,4,R,X)
+
+/*
+ * Square root algorithms:
+ * We have just one right now, maybe Newton approximation
+ * should be added for those machines where division is fast.
+ * This has special _E version because standard _4 square
+ * root would not work (it has to start normally with the
+ * second word and not the first), but as we have to do it
+ * anyway, we optimize it by doing most of the calculations
+ * in two UWtype registers instead of four.
+ */
+
+#define _FP_SQRT_MEAT_E(R, S, T, X, q) \
+ do { \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ _FP_FRAC_SRL_4(X, (_FP_WORKBITS)); \
+ while (q) \
+ { \
+ T##_f[1] = S##_f[1] + q; \
+ if (T##_f[1] <= X##_f[1]) \
+ { \
+ S##_f[1] = T##_f[1] + q; \
+ X##_f[1] -= T##_f[1]; \
+ R##_f[1] += q; \
+ } \
+ _FP_FRAC_SLL_2(X, 1); \
+ q >>= 1; \
+ } \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ while (q) \
+ { \
+ T##_f[0] = S##_f[0] + q; \
+ T##_f[1] = S##_f[1]; \
+ if (T##_f[1] < X##_f[1] || \
+ (T##_f[1] == X##_f[1] && \
+ T##_f[0] <= X##_f[0])) \
+ { \
+ S##_f[0] = T##_f[0] + q; \
+ S##_f[1] += (T##_f[0] > S##_f[0]); \
+ _FP_FRAC_DEC_2(X, T); \
+ R##_f[0] += q; \
+ } \
+ _FP_FRAC_SLL_2(X, 1); \
+ q >>= 1; \
+ } \
+ _FP_FRAC_SLL_4(R, (_FP_WORKBITS)); \
+ if (X##_f[0] | X##_f[1]) \
+ { \
+ if (S##_f[1] < X##_f[1] || \
+ (S##_f[1] == X##_f[1] && \
+ S##_f[0] < X##_f[0])) \
+ R##_f[0] |= _FP_WORK_ROUND; \
+ R##_f[0] |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,4,r,X,Y,un)
+#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,4,r,X,Y)
+#define FP_CMP_UNORD_E(r,X,Y) _FP_CMP_UNORD(E,4,r,X,Y)
+
+#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,4,r,X,rsz,rsg)
+#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,4,X,r,rs,rt)
+
+#define _FP_FRAC_HIGH_E(X) (X##_f[2])
+#define _FP_FRAC_HIGH_RAW_E(X) (X##_f[1])
+
+#else /* not _FP_W_TYPE_SIZE < 64 */
+union _FP_UNION_E
+{
+ XFtype flt;
+ struct {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ _FP_W_TYPE pad : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E);
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_E;
+ _FP_W_TYPE frac : _FP_W_TYPE_SIZE;
+#else
+ _FP_W_TYPE frac : _FP_W_TYPE_SIZE;
+ unsigned exp : _FP_EXPBITS_E;
+ unsigned sign : 1;
+#endif
+ } bits;
+};
+
+#define FP_DECL_E(X) _FP_DECL(2,X)
+
+#define FP_UNPACK_RAW_E(X, val) \
+ do { \
+ union _FP_UNION_E _flo; _flo.flt = (val); \
+ \
+ X##_f0 = _flo.bits.frac; \
+ X##_f1 = 0; \
+ X##_e = _flo.bits.exp; \
+ X##_s = _flo.bits.sign; \
+ } while (0)
+
+#define FP_UNPACK_RAW_EP(X, val) \
+ do { \
+ union _FP_UNION_E *_flo = \
+ (union _FP_UNION_E *)(val); \
+ \
+ X##_f0 = _flo->bits.frac; \
+ X##_f1 = 0; \
+ X##_e = _flo->bits.exp; \
+ X##_s = _flo->bits.sign; \
+ } while (0)
+
+#define FP_PACK_RAW_E(val, X) \
+ do { \
+ union _FP_UNION_E _flo; \
+ \
+ if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \
+ else X##_f0 &= ~(_FP_IMPLBIT_E); \
+ _flo.bits.frac = X##_f0; \
+ _flo.bits.exp = X##_e; \
+ _flo.bits.sign = X##_s; \
+ \
+ (val) = _flo.flt; \
+ } while (0)
+
+#define FP_PACK_RAW_EP(fs, val, X) \
+ do { \
+ if (!FP_INHIBIT_RESULTS) \
+ { \
+ union _FP_UNION_E *_flo = \
+ (union _FP_UNION_E *)(val); \
+ \
+ if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \
+ else X##_f0 &= ~(_FP_IMPLBIT_E); \
+ _flo->bits.frac = X##_f0; \
+ _flo->bits.exp = X##_e; \
+ _flo->bits.sign = X##_s; \
+ } \
+ } while (0)
+
+
+#define FP_UNPACK_E(X,val) \
+ do { \
+ FP_UNPACK_RAW_E(X,val); \
+ _FP_UNPACK_CANONICAL(E,2,X); \
+ } while (0)
+
+#define FP_UNPACK_EP(X,val) \
+ do { \
+ FP_UNPACK_RAW_EP(X,val); \
+ _FP_UNPACK_CANONICAL(E,2,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_E(X,val) \
+ do { \
+ FP_UNPACK_RAW_E(X,val); \
+ _FP_UNPACK_SEMIRAW(E,2,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_EP(X,val) \
+ do { \
+ FP_UNPACK_RAW_EP(X,val); \
+ _FP_UNPACK_SEMIRAW(E,2,X); \
+ } while (0)
+
+#define FP_PACK_E(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(E,2,X); \
+ FP_PACK_RAW_E(val,X); \
+ } while (0)
+
+#define FP_PACK_EP(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(E,2,X); \
+ FP_PACK_RAW_EP(val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_E(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(E,2,X); \
+ FP_PACK_RAW_E(val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_EP(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(E,2,X); \
+ FP_PACK_RAW_EP(val,X); \
+ } while (0)
+
+#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,2,X)
+#define FP_NEG_E(R,X) _FP_NEG(E,2,R,X)
+#define FP_ADD_E(R,X,Y) _FP_ADD(E,2,R,X,Y)
+#define FP_SUB_E(R,X,Y) _FP_SUB(E,2,R,X,Y)
+#define FP_MUL_E(R,X,Y) _FP_MUL(E,2,R,X,Y)
+#define FP_DIV_E(R,X,Y) _FP_DIV(E,2,R,X,Y)
+#define FP_SQRT_E(R,X) _FP_SQRT(E,2,R,X)
+
+/*
+ * Square root algorithms:
+ * We have just one right now, maybe Newton approximation
+ * should be added for those machines where division is fast.
+ * We optimize it by doing most of the calculations
+ * in one UWtype registers instead of two, although we don't
+ * have to.
+ */
+#define _FP_SQRT_MEAT_E(R, S, T, X, q) \
+ do { \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ _FP_FRAC_SRL_2(X, (_FP_WORKBITS)); \
+ while (q) \
+ { \
+ T##_f0 = S##_f0 + q; \
+ if (T##_f0 <= X##_f0) \
+ { \
+ S##_f0 = T##_f0 + q; \
+ X##_f0 -= T##_f0; \
+ R##_f0 += q; \
+ } \
+ _FP_FRAC_SLL_1(X, 1); \
+ q >>= 1; \
+ } \
+ _FP_FRAC_SLL_2(R, (_FP_WORKBITS)); \
+ if (X##_f0) \
+ { \
+ if (S##_f0 < X##_f0) \
+ R##_f0 |= _FP_WORK_ROUND; \
+ R##_f0 |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,2,r,X,Y,un)
+#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,2,r,X,Y)
+#define FP_CMP_UNORD_E(r,X,Y) _FP_CMP_UNORD(E,2,r,X,Y)
+
+#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,2,r,X,rsz,rsg)
+#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,2,X,r,rs,rt)
+
+#define _FP_FRAC_HIGH_E(X) (X##_f1)
+#define _FP_FRAC_HIGH_RAW_E(X) (X##_f0)
+
+#endif /* not _FP_W_TYPE_SIZE < 64 */
--- /dev/null
+/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
+ Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+/* You have to define the following before including this file:
+
+ UWtype -- An unsigned type, default type for operations (typically a "word")
+ UHWtype -- An unsigned type, at least half the size of UWtype.
+ UDWtype -- An unsigned type, at least twice as large a UWtype
+ W_TYPE_SIZE -- size in bits of UWtype
+
+ UQItype -- Unsigned 8 bit type.
+ SItype, USItype -- Signed and unsigned 32 bit types.
+ DItype, UDItype -- Signed and unsigned 64 bit types.
+
+ On a 32 bit machine UWtype should typically be USItype;
+ on a 64 bit machine, UWtype should typically be UDItype. */
+
+#define __BITS4 (W_TYPE_SIZE / 4)
+#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
+#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
+
+#ifndef W_TYPE_SIZE
+#define W_TYPE_SIZE 32
+#define UWtype USItype
+#define UHWtype USItype
+#define UDWtype UDItype
+#endif
+
+extern const UQItype __clz_tab[256] attribute_hidden;
+
+/* Define auxiliary asm macros.
+
+ 1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
+ UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
+ word product in HIGH_PROD and LOW_PROD.
+
+ 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
+ UDWtype product. This is just a variant of umul_ppmm.
+
+ 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
+ denominator) divides a UDWtype, composed by the UWtype integers
+ HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
+ in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
+ than DENOMINATOR for correct operation. If, in addition, the most
+ significant bit of DENOMINATOR must be 1, then the pre-processor symbol
+ UDIV_NEEDS_NORMALIZATION is defined to 1.
+
+ 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
+ denominator). Like udiv_qrnnd but the numbers are signed. The quotient
+ is rounded towards 0.
+
+ 5) count_leading_zeros(count, x) counts the number of zero-bits from the
+ msb to the first nonzero bit in the UWtype X. This is the number of
+ steps X needs to be shifted left to set the msb. Undefined for X == 0,
+ unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
+
+ 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
+ from the least significant end.
+
+ 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
+ high_addend_2, low_addend_2) adds two UWtype integers, composed by
+ HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
+ respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
+ (i.e. carry out) is not stored anywhere, and is lost.
+
+ 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
+ high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
+ composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
+ LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
+ and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
+ and is lost.
+
+ If any of these macros are left undefined for a particular CPU,
+ C macros are used. */
+
+/* The CPUs come in alphabetical order below.
+
+ Please add support for more CPUs here, or improve the current support
+ for the CPUs below!
+ (E.g. WE32100, IBM360.) */
+
+#if defined (__GNUC__) && !defined (NO_ASM)
+
+/* We sometimes need to clobber "cc" with gcc2, but that would not be
+ understood by gcc1. Use cpp to avoid major code duplication. */
+#if __GNUC__ < 2
+#define __CLOBBER_CC
+#define __AND_CLOBBER_CC
+#else /* __GNUC__ >= 2 */
+#define __CLOBBER_CC : "cc"
+#define __AND_CLOBBER_CC , "cc"
+#endif /* __GNUC__ < 2 */
+
+#if defined (__alpha) && W_TYPE_SIZE == 64
+#define umul_ppmm(ph, pl, m0, m1) \
+ do { \
+ UDItype __m0 = (m0), __m1 = (m1); \
+ (ph) = __builtin_alpha_umulh (__m0, __m1); \
+ (pl) = __m0 * __m1; \
+ } while (0)
+#define UMUL_TIME 46
+#ifndef LONGLONG_STANDALONE
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ do { UDItype __r; \
+ (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
+ (r) = __r; \
+ } while (0)
+extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
+#define UDIV_TIME 220
+#endif /* LONGLONG_STANDALONE */
+#ifdef __alpha_cix__
+#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
+#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
+#define COUNT_LEADING_ZEROS_0 64
+#else
+#define count_leading_zeros(COUNT,X) \
+ do { \
+ UDItype __xr = (X), __t, __a; \
+ __t = __builtin_alpha_cmpbge (0, __xr); \
+ __a = __clz_tab[__t ^ 0xff] - 1; \
+ __t = __builtin_alpha_extbl (__xr, __a); \
+ (COUNT) = 64 - (__clz_tab[__t] + __a*8); \
+ } while (0)
+#define count_trailing_zeros(COUNT,X) \
+ do { \
+ UDItype __xr = (X), __t, __a; \
+ __t = __builtin_alpha_cmpbge (0, __xr); \
+ __t = ~__t & -~__t; \
+ __a = ((__t & 0xCC) != 0) * 2; \
+ __a += ((__t & 0xF0) != 0) * 4; \
+ __a += ((__t & 0xAA) != 0); \
+ __t = __builtin_alpha_extbl (__xr, __a); \
+ __a <<= 3; \
+ __t &= -__t; \
+ __a += ((__t & 0xCC) != 0) * 2; \
+ __a += ((__t & 0xF0) != 0) * 4; \
+ __a += ((__t & 0xAA) != 0); \
+ (COUNT) = __a; \
+ } while (0)
+#endif /* __alpha_cix__ */
+#endif /* __alpha */
+
+#if defined (__arc__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%r" ((USItype) (ah)), \
+ "rIJ" ((USItype) (bh)), \
+ "%r" ((USItype) (al)), \
+ "rIJ" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "r" ((USItype) (ah)), \
+ "rIJ" ((USItype) (bh)), \
+ "r" ((USItype) (al)), \
+ "rIJ" ((USItype) (bl)))
+/* Call libgcc routine. */
+#define umul_ppmm(w1, w0, u, v) \
+do { \
+ DWunion __w; \
+ __w.ll = __umulsidi3 (u, v); \
+ w1 = __w.s.high; \
+ w0 = __w.s.low; \
+} while (0)
+#define __umulsidi3 __umulsidi3
+UDItype __umulsidi3 (USItype, USItype);
+#endif
+
+#if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%r" ((USItype) (ah)), \
+ "rI" ((USItype) (bh)), \
+ "%r" ((USItype) (al)), \
+ "rI" ((USItype) (bl)) __CLOBBER_CC)
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "r" ((USItype) (ah)), \
+ "rI" ((USItype) (bh)), \
+ "r" ((USItype) (al)), \
+ "rI" ((USItype) (bl)) __CLOBBER_CC)
+#define umul_ppmm(xh, xl, a, b) \
+{register USItype __t0, __t1, __t2; \
+ __asm__ ("%@ Inlined umul_ppmm\n" \
+ " mov %2, %5, lsr #16\n" \
+ " mov %0, %6, lsr #16\n" \
+ " bic %3, %5, %2, lsl #16\n" \
+ " bic %4, %6, %0, lsl #16\n" \
+ " mul %1, %3, %4\n" \
+ " mul %4, %2, %4\n" \
+ " mul %3, %0, %3\n" \
+ " mul %0, %2, %0\n" \
+ " adds %3, %4, %3\n" \
+ " addcs %0, %0, #65536\n" \
+ " adds %1, %1, %3, lsl #16\n" \
+ " adc %0, %0, %3, lsr #16" \
+ : "=&r" ((USItype) (xh)), \
+ "=r" ((USItype) (xl)), \
+ "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
+ : "r" ((USItype) (a)), \
+ "r" ((USItype) (b)) __CLOBBER_CC );}
+#define UMUL_TIME 20
+#define UDIV_TIME 100
+#endif /* __arm__ */
+
+#if defined(__arm__)
+/* Let gcc decide how best to implement count_leading_zeros. */
+#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
+#define COUNT_LEADING_ZEROS_0 32
+#endif
+
+#if defined (__CRIS__) && __CRIS_arch_version >= 3
+#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
+#if __CRIS_arch_version >= 8
+#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
+#endif
+#endif /* __CRIS__ */
+
+#if defined (__hppa) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%rM" ((USItype) (ah)), \
+ "rM" ((USItype) (bh)), \
+ "%rM" ((USItype) (al)), \
+ "rM" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "rM" ((USItype) (ah)), \
+ "rM" ((USItype) (bh)), \
+ "rM" ((USItype) (al)), \
+ "rM" ((USItype) (bl)))
+#if defined (_PA_RISC1_1)
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ union \
+ { \
+ UDItype __f; \
+ struct {USItype __w1, __w0;} __w1w0; \
+ } __t; \
+ __asm__ ("xmpyu %1,%2,%0" \
+ : "=x" (__t.__f) \
+ : "x" ((USItype) (u)), \
+ "x" ((USItype) (v))); \
+ (w1) = __t.__w1w0.__w1; \
+ (w0) = __t.__w1w0.__w0; \
+ } while (0)
+#define UMUL_TIME 8
+#else
+#define UMUL_TIME 30
+#endif
+#define UDIV_TIME 40
+#define count_leading_zeros(count, x) \
+ do { \
+ USItype __tmp; \
+ __asm__ ( \
+ "ldi 1,%0\n" \
+" extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
+" extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
+" ldo 16(%0),%0 ; Yes. Perform add.\n" \
+" extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
+" extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
+" ldo 8(%0),%0 ; Yes. Perform add.\n" \
+" extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
+" extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
+" ldo 4(%0),%0 ; Yes. Perform add.\n" \
+" extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
+" extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
+" ldo 2(%0),%0 ; Yes. Perform add.\n" \
+" extru %1,30,1,%1 ; Extract bit 1.\n" \
+" sub %0,%1,%0 ; Subtract it.\n" \
+ : "=r" (count), "=r" (__tmp) : "1" (x)); \
+ } while (0)
+#endif
+
+#if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
+#define smul_ppmm(xh, xl, m0, m1) \
+ do { \
+ union {DItype __ll; \
+ struct {USItype __h, __l;} __i; \
+ } __x; \
+ __asm__ ("lr %N0,%1\n\tmr %0,%2" \
+ : "=&r" (__x.__ll) \
+ : "r" (m0), "r" (m1)); \
+ (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
+ } while (0)
+#define sdiv_qrnnd(q, r, n1, n0, d) \
+ do { \
+ union {DItype __ll; \
+ struct {USItype __h, __l;} __i; \
+ } __x; \
+ __x.__i.__h = n1; __x.__i.__l = n0; \
+ __asm__ ("dr %0,%2" \
+ : "=r" (__x.__ll) \
+ : "0" (__x.__ll), "r" (d)); \
+ (q) = __x.__i.__l; (r) = __x.__i.__h; \
+ } while (0)
+#endif
+
+#if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add{l} {%5,%1|%1,%5}\n\tadc{l} {%3,%0|%0,%3}" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%0" ((USItype) (ah)), \
+ "g" ((USItype) (bh)), \
+ "%1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub{l} {%5,%1|%1,%5}\n\tsbb{l} {%3,%0|%0,%3}" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "g" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("mul{l} %3" \
+ : "=a" ((USItype) (w0)), \
+ "=d" ((USItype) (w1)) \
+ : "%0" ((USItype) (u)), \
+ "rm" ((USItype) (v)))
+#define udiv_qrnnd(q, r, n1, n0, dv) \
+ __asm__ ("div{l} %4" \
+ : "=a" ((USItype) (q)), \
+ "=d" ((USItype) (r)) \
+ : "0" ((USItype) (n0)), \
+ "1" ((USItype) (n1)), \
+ "rm" ((USItype) (dv)))
+#define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
+#define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
+#define UMUL_TIME 40
+#define UDIV_TIME 40
+#endif /* 80x86 */
+
+#if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
+ : "=r" ((UDItype) (sh)), \
+ "=&r" ((UDItype) (sl)) \
+ : "%0" ((UDItype) (ah)), \
+ "rme" ((UDItype) (bh)), \
+ "%1" ((UDItype) (al)), \
+ "rme" ((UDItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
+ : "=r" ((UDItype) (sh)), \
+ "=&r" ((UDItype) (sl)) \
+ : "0" ((UDItype) (ah)), \
+ "rme" ((UDItype) (bh)), \
+ "1" ((UDItype) (al)), \
+ "rme" ((UDItype) (bl)))
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("mul{q} %3" \
+ : "=a" ((UDItype) (w0)), \
+ "=d" ((UDItype) (w1)) \
+ : "%0" ((UDItype) (u)), \
+ "rm" ((UDItype) (v)))
+#define udiv_qrnnd(q, r, n1, n0, dv) \
+ __asm__ ("div{q} %4" \
+ : "=a" ((UDItype) (q)), \
+ "=d" ((UDItype) (r)) \
+ : "0" ((UDItype) (n0)), \
+ "1" ((UDItype) (n1)), \
+ "rm" ((UDItype) (dv)))
+#define count_leading_zeros(count, x) ((count) = __builtin_clzl (x))
+#define count_trailing_zeros(count, x) ((count) = __builtin_ctzl (x))
+#define UMUL_TIME 40
+#define UDIV_TIME 40
+#endif /* x86_64 */
+
+#if defined (__i960__) && W_TYPE_SIZE == 32
+#define umul_ppmm(w1, w0, u, v) \
+ ({union {UDItype __ll; \
+ struct {USItype __l, __h;} __i; \
+ } __xx; \
+ __asm__ ("emul %2,%1,%0" \
+ : "=d" (__xx.__ll) \
+ : "%dI" ((USItype) (u)), \
+ "dI" ((USItype) (v))); \
+ (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
+#define __umulsidi3(u, v) \
+ ({UDItype __w; \
+ __asm__ ("emul %2,%1,%0" \
+ : "=d" (__w) \
+ : "%dI" ((USItype) (u)), \
+ "dI" ((USItype) (v))); \
+ __w; })
+#endif /* __i960__ */
+
+#if defined (__M32R__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ /* The cmp clears the condition bit. */ \
+ __asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "r" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "r" ((USItype) (bl)) \
+ : "cbit")
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ /* The cmp clears the condition bit. */ \
+ __asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "r" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "r" ((USItype) (bl)) \
+ : "cbit")
+#endif /* __M32R__ */
+
+#if defined (__mc68000__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
+ : "=d" ((USItype) (sh)), \
+ "=&d" ((USItype) (sl)) \
+ : "%0" ((USItype) (ah)), \
+ "d" ((USItype) (bh)), \
+ "%1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
+ : "=d" ((USItype) (sh)), \
+ "=&d" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "d" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+
+/* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
+#if (defined (__mc68020__) && !defined (__mc68060__))
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("mulu%.l %3,%1:%0" \
+ : "=d" ((USItype) (w0)), \
+ "=d" ((USItype) (w1)) \
+ : "%0" ((USItype) (u)), \
+ "dmi" ((USItype) (v)))
+#define UMUL_TIME 45
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ __asm__ ("divu%.l %4,%1:%0" \
+ : "=d" ((USItype) (q)), \
+ "=d" ((USItype) (r)) \
+ : "0" ((USItype) (n0)), \
+ "1" ((USItype) (n1)), \
+ "dmi" ((USItype) (d)))
+#define UDIV_TIME 90
+#define sdiv_qrnnd(q, r, n1, n0, d) \
+ __asm__ ("divs%.l %4,%1:%0" \
+ : "=d" ((USItype) (q)), \
+ "=d" ((USItype) (r)) \
+ : "0" ((USItype) (n0)), \
+ "1" ((USItype) (n1)), \
+ "dmi" ((USItype) (d)))
+
+#elif defined (__mcoldfire__) /* not mc68020 */
+
+#define umul_ppmm(xh, xl, a, b) \
+ __asm__ ("| Inlined umul_ppmm\n" \
+ " move%.l %2,%/d0\n" \
+ " move%.l %3,%/d1\n" \
+ " move%.l %/d0,%/d2\n" \
+ " swap %/d0\n" \
+ " move%.l %/d1,%/d3\n" \
+ " swap %/d1\n" \
+ " move%.w %/d2,%/d4\n" \
+ " mulu %/d3,%/d4\n" \
+ " mulu %/d1,%/d2\n" \
+ " mulu %/d0,%/d3\n" \
+ " mulu %/d0,%/d1\n" \
+ " move%.l %/d4,%/d0\n" \
+ " clr%.w %/d0\n" \
+ " swap %/d0\n" \
+ " add%.l %/d0,%/d2\n" \
+ " add%.l %/d3,%/d2\n" \
+ " jcc 1f\n" \
+ " add%.l %#65536,%/d1\n" \
+ "1: swap %/d2\n" \
+ " moveq %#0,%/d0\n" \
+ " move%.w %/d2,%/d0\n" \
+ " move%.w %/d4,%/d2\n" \
+ " move%.l %/d2,%1\n" \
+ " add%.l %/d1,%/d0\n" \
+ " move%.l %/d0,%0" \
+ : "=g" ((USItype) (xh)), \
+ "=g" ((USItype) (xl)) \
+ : "g" ((USItype) (a)), \
+ "g" ((USItype) (b)) \
+ : "d0", "d1", "d2", "d3", "d4")
+#define UMUL_TIME 100
+#define UDIV_TIME 400
+#else /* not ColdFire */
+/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
+#define umul_ppmm(xh, xl, a, b) \
+ __asm__ ("| Inlined umul_ppmm\n" \
+ " move%.l %2,%/d0\n" \
+ " move%.l %3,%/d1\n" \
+ " move%.l %/d0,%/d2\n" \
+ " swap %/d0\n" \
+ " move%.l %/d1,%/d3\n" \
+ " swap %/d1\n" \
+ " move%.w %/d2,%/d4\n" \
+ " mulu %/d3,%/d4\n" \
+ " mulu %/d1,%/d2\n" \
+ " mulu %/d0,%/d3\n" \
+ " mulu %/d0,%/d1\n" \
+ " move%.l %/d4,%/d0\n" \
+ " eor%.w %/d0,%/d0\n" \
+ " swap %/d0\n" \
+ " add%.l %/d0,%/d2\n" \
+ " add%.l %/d3,%/d2\n" \
+ " jcc 1f\n" \
+ " add%.l %#65536,%/d1\n" \
+ "1: swap %/d2\n" \
+ " moveq %#0,%/d0\n" \
+ " move%.w %/d2,%/d0\n" \
+ " move%.w %/d4,%/d2\n" \
+ " move%.l %/d2,%1\n" \
+ " add%.l %/d1,%/d0\n" \
+ " move%.l %/d0,%0" \
+ : "=g" ((USItype) (xh)), \
+ "=g" ((USItype) (xl)) \
+ : "g" ((USItype) (a)), \
+ "g" ((USItype) (b)) \
+ : "d0", "d1", "d2", "d3", "d4")
+#define UMUL_TIME 100
+#define UDIV_TIME 400
+
+#endif /* not mc68020 */
+
+/* The '020, '030, '040 and '060 have bitfield insns.
+ cpu32 disguises as a 68020, but lacks them. */
+#if defined (__mc68020__) && !defined (__mcpu32__)
+#define count_leading_zeros(count, x) \
+ __asm__ ("bfffo %1{%b2:%b2},%0" \
+ : "=d" ((USItype) (count)) \
+ : "od" ((USItype) (x)), "n" (0))
+/* Some ColdFire architectures have a ff1 instruction supported via
+ __builtin_clz. */
+#elif defined (__mcfisaaplus__) || defined (__mcfisac__)
+#define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
+#define COUNT_LEADING_ZEROS_0 32
+#endif
+#endif /* mc68000 */
+
+#if defined (__m88000__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%rJ" ((USItype) (ah)), \
+ "rJ" ((USItype) (bh)), \
+ "%rJ" ((USItype) (al)), \
+ "rJ" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "rJ" ((USItype) (ah)), \
+ "rJ" ((USItype) (bh)), \
+ "rJ" ((USItype) (al)), \
+ "rJ" ((USItype) (bl)))
+#define count_leading_zeros(count, x) \
+ do { \
+ USItype __cbtmp; \
+ __asm__ ("ff1 %0,%1" \
+ : "=r" (__cbtmp) \
+ : "r" ((USItype) (x))); \
+ (count) = __cbtmp ^ 31; \
+ } while (0)
+#define COUNT_LEADING_ZEROS_0 63 /* sic */
+#if defined (__mc88110__)
+#define umul_ppmm(wh, wl, u, v) \
+ do { \
+ union {UDItype __ll; \
+ struct {USItype __h, __l;} __i; \
+ } __xx; \
+ __asm__ ("mulu.d %0,%1,%2" \
+ : "=r" (__xx.__ll) \
+ : "r" ((USItype) (u)), \
+ "r" ((USItype) (v))); \
+ (wh) = __xx.__i.__h; \
+ (wl) = __xx.__i.__l; \
+ } while (0)
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ ({union {UDItype __ll; \
+ struct {USItype __h, __l;} __i; \
+ } __xx; \
+ USItype __q; \
+ __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
+ __asm__ ("divu.d %0,%1,%2" \
+ : "=r" (__q) \
+ : "r" (__xx.__ll), \
+ "r" ((USItype) (d))); \
+ (r) = (n0) - __q * (d); (q) = __q; })
+#define UMUL_TIME 5
+#define UDIV_TIME 25
+#else
+#define UMUL_TIME 17
+#define UDIV_TIME 150
+#endif /* __mc88110__ */
+#endif /* __m88000__ */
+
+#if defined (__mips__) && W_TYPE_SIZE == 32
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
+ (w1) = (USItype) (__x >> 32); \
+ (w0) = (USItype) (__x); \
+ } while (0)
+#define UMUL_TIME 10
+#define UDIV_TIME 100
+
+#if (__mips == 32 || __mips == 64) && ! __mips16
+#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
+#define COUNT_LEADING_ZEROS_0 32
+#endif
+#endif /* __mips__ */
+
+#if defined (__ns32000__) && W_TYPE_SIZE == 32
+#define umul_ppmm(w1, w0, u, v) \
+ ({union {UDItype __ll; \
+ struct {USItype __l, __h;} __i; \
+ } __xx; \
+ __asm__ ("meid %2,%0" \
+ : "=g" (__xx.__ll) \
+ : "%0" ((USItype) (u)), \
+ "g" ((USItype) (v))); \
+ (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
+#define __umulsidi3(u, v) \
+ ({UDItype __w; \
+ __asm__ ("meid %2,%0" \
+ : "=g" (__w) \
+ : "%0" ((USItype) (u)), \
+ "g" ((USItype) (v))); \
+ __w; })
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ ({union {UDItype __ll; \
+ struct {USItype __l, __h;} __i; \
+ } __xx; \
+ __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
+ __asm__ ("deid %2,%0" \
+ : "=g" (__xx.__ll) \
+ : "0" (__xx.__ll), \
+ "g" ((USItype) (d))); \
+ (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
+#define count_trailing_zeros(count,x) \
+ do { \
+ __asm__ ("ffsd %2,%0" \
+ : "=r" ((USItype) (count)) \
+ : "0" ((USItype) 0), \
+ "r" ((USItype) (x))); \
+ } while (0)
+#endif /* __ns32000__ */
+
+/* FIXME: We should test _IBMR2 here when we add assembly support for the
+ system vendor compilers.
+ FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
+ enough, since that hits ARM and m68k too. */
+#if (defined (_ARCH_PPC) /* AIX */ \
+ || defined (_ARCH_PWR) /* AIX */ \
+ || defined (_ARCH_COM) /* AIX */ \
+ || defined (__powerpc__) /* gcc */ \
+ || defined (__POWERPC__) /* BEOS */ \
+ || defined (__ppc__) /* Darwin */ \
+ || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
+ || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
+ && CPU_FAMILY == PPC) \
+ ) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ do { \
+ if (__builtin_constant_p (bh) && (bh) == 0) \
+ __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
+ __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
+ else \
+ __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
+ : "=r" (sh), "=&r" (sl) \
+ : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
+ } while (0)
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ do { \
+ if (__builtin_constant_p (ah) && (ah) == 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
+ else \
+ __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
+ : "=r" (sh), "=&r" (sl) \
+ : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
+ } while (0)
+#define count_leading_zeros(count, x) \
+ __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
+#define COUNT_LEADING_ZEROS_0 32
+#if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
+ || defined (__ppc__) \
+ || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
+ || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
+ && CPU_FAMILY == PPC)
+#define umul_ppmm(ph, pl, m0, m1) \
+ do { \
+ USItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
+ (pl) = __m0 * __m1; \
+ } while (0)
+#define UMUL_TIME 15
+#define smul_ppmm(ph, pl, m0, m1) \
+ do { \
+ SItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
+ (pl) = __m0 * __m1; \
+ } while (0)
+#define SMUL_TIME 14
+#define UDIV_TIME 120
+#elif defined (_ARCH_PWR)
+#define UMUL_TIME 8
+#define smul_ppmm(xh, xl, m0, m1) \
+ __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
+#define SMUL_TIME 4
+#define sdiv_qrnnd(q, r, nh, nl, d) \
+ __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
+#define UDIV_TIME 100
+#endif
+#endif /* 32-bit POWER architecture variants. */
+
+/* We should test _IBMR2 here when we add assembly support for the system
+ vendor compilers. */
+#if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ do { \
+ if (__builtin_constant_p (bh) && (bh) == 0) \
+ __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
+ __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
+ else \
+ __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
+ : "=r" (sh), "=&r" (sl) \
+ : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
+ } while (0)
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ do { \
+ if (__builtin_constant_p (ah) && (ah) == 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
+ else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
+ __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
+ : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
+ else \
+ __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
+ : "=r" (sh), "=&r" (sl) \
+ : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
+ } while (0)
+#define count_leading_zeros(count, x) \
+ __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
+#define COUNT_LEADING_ZEROS_0 64
+#define umul_ppmm(ph, pl, m0, m1) \
+ do { \
+ UDItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
+ (pl) = __m0 * __m1; \
+ } while (0)
+#define UMUL_TIME 15
+#define smul_ppmm(ph, pl, m0, m1) \
+ do { \
+ DItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
+ (pl) = __m0 * __m1; \
+ } while (0)
+#define SMUL_TIME 14 /* ??? */
+#define UDIV_TIME 120 /* ??? */
+#endif /* 64-bit PowerPC. */
+
+#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("a %1,%5\n\tae %0,%3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%0" ((USItype) (ah)), \
+ "r" ((USItype) (bh)), \
+ "%1" ((USItype) (al)), \
+ "r" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("s %1,%5\n\tse %0,%3" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "r" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "r" ((USItype) (bl)))
+#define umul_ppmm(ph, pl, m0, m1) \
+ do { \
+ USItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ( \
+ "s r2,r2\n" \
+" mts r10,%2\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" m r2,%3\n" \
+" cas %0,r2,r0\n" \
+" mfs r10,%1" \
+ : "=r" ((USItype) (ph)), \
+ "=r" ((USItype) (pl)) \
+ : "%r" (__m0), \
+ "r" (__m1) \
+ : "r2"); \
+ (ph) += ((((SItype) __m0 >> 31) & __m1) \
+ + (((SItype) __m1 >> 31) & __m0)); \
+ } while (0)
+#define UMUL_TIME 20
+#define UDIV_TIME 200
+#define count_leading_zeros(count, x) \
+ do { \
+ if ((x) >= 0x10000) \
+ __asm__ ("clz %0,%1" \
+ : "=r" ((USItype) (count)) \
+ : "r" ((USItype) (x) >> 16)); \
+ else \
+ { \
+ __asm__ ("clz %0,%1" \
+ : "=r" ((USItype) (count)) \
+ : "r" ((USItype) (x))); \
+ (count) += 16; \
+ } \
+ } while (0)
+#endif
+
+#if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
+#ifndef __sh1__
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ( \
+ "dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
+ : "=r<" ((USItype)(w1)), \
+ "=r<" ((USItype)(w0)) \
+ : "r" ((USItype)(u)), \
+ "r" ((USItype)(v)) \
+ : "macl", "mach")
+#define UMUL_TIME 5
+#endif
+
+/* This is the same algorithm as __udiv_qrnnd_c. */
+#define UDIV_NEEDS_NORMALIZATION 1
+
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ do { \
+ extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
+ __attribute__ ((visibility ("hidden"))); \
+ /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
+ __asm__ ( \
+ "mov%M4 %4,r5\n" \
+" swap.w %3,r4\n" \
+" swap.w r5,r6\n" \
+" jsr @%5\n" \
+" shll16 r6\n" \
+" swap.w r4,r4\n" \
+" jsr @%5\n" \
+" swap.w r1,%0\n" \
+" or r1,%0" \
+ : "=r" (q), "=&z" (r) \
+ : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
+ : "r1", "r2", "r4", "r5", "r6", "pr"); \
+ } while (0)
+
+#define UDIV_TIME 80
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("clrt;subc %5,%1; subc %4,%0" \
+ : "=r" (sh), "=r" (sl) \
+ : "0" (ah), "1" (al), "r" (bh), "r" (bl))
+
+#endif /* __sh__ */
+
+#if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
+#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
+#define count_leading_zeros(count, x) \
+ do \
+ { \
+ UDItype x_ = (USItype)(x); \
+ SItype c_; \
+ \
+ __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \
+ (count) = c_ - 31; \
+ } \
+ while (0)
+#define COUNT_LEADING_ZEROS_0 32
+#endif
+
+#if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
+ && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "%rJ" ((USItype) (ah)), \
+ "rI" ((USItype) (bh)), \
+ "%rJ" ((USItype) (al)), \
+ "rI" ((USItype) (bl)) \
+ __CLOBBER_CC)
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
+ : "=r" ((USItype) (sh)), \
+ "=&r" ((USItype) (sl)) \
+ : "rJ" ((USItype) (ah)), \
+ "rI" ((USItype) (bh)), \
+ "rJ" ((USItype) (al)), \
+ "rI" ((USItype) (bl)) \
+ __CLOBBER_CC)
+#if defined (__sparc_v8__)
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("umul %2,%3,%1;rd %%y,%0" \
+ : "=r" ((USItype) (w1)), \
+ "=r" ((USItype) (w0)) \
+ : "r" ((USItype) (u)), \
+ "r" ((USItype) (v)))
+#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
+ __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
+ : "=&r" ((USItype) (__q)), \
+ "=&r" ((USItype) (__r)) \
+ : "r" ((USItype) (__n1)), \
+ "r" ((USItype) (__n0)), \
+ "r" ((USItype) (__d)))
+#else
+#if defined (__sparclite__)
+/* This has hardware multiply but not divide. It also has two additional
+ instructions scan (ffs from high bit) and divscc. */
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("umul %2,%3,%1;rd %%y,%0" \
+ : "=r" ((USItype) (w1)), \
+ "=r" ((USItype) (w0)) \
+ : "r" ((USItype) (u)), \
+ "r" ((USItype) (v)))
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ __asm__ ("! Inlined udiv_qrnnd\n" \
+" wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
+" tst %%g0\n" \
+" divscc %3,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%%g1\n" \
+" divscc %%g1,%4,%0\n" \
+" rd %%y,%1\n" \
+" bl,a 1f\n" \
+" add %1,%4,%1\n" \
+"1: ! End of inline udiv_qrnnd" \
+ : "=r" ((USItype) (q)), \
+ "=r" ((USItype) (r)) \
+ : "r" ((USItype) (n1)), \
+ "r" ((USItype) (n0)), \
+ "rI" ((USItype) (d)) \
+ : "g1" __AND_CLOBBER_CC)
+#define UDIV_TIME 37
+#define count_leading_zeros(count, x) \
+ do { \
+ __asm__ ("scan %1,1,%0" \
+ : "=r" ((USItype) (count)) \
+ : "r" ((USItype) (x))); \
+ } while (0)
+/* Early sparclites return 63 for an argument of 0, but they warn that future
+ implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
+ undefined. */
+#else
+/* SPARC without integer multiplication and divide instructions.
+ (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("! Inlined umul_ppmm\n" \
+" wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
+" sra %3,31,%%o5 ! Don't move this insn\n" \
+" and %2,%%o5,%%o5 ! Don't move this insn\n" \
+" andcc %%g0,0,%%g1 ! Don't move this insn\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,%3,%%g1\n" \
+" mulscc %%g1,0,%%g1\n" \
+" add %%g1,%%o5,%0\n" \
+" rd %%y,%1" \
+ : "=r" ((USItype) (w1)), \
+ "=r" ((USItype) (w0)) \
+ : "%rI" ((USItype) (u)), \
+ "r" ((USItype) (v)) \
+ : "g1", "o5" __AND_CLOBBER_CC)
+#define UMUL_TIME 39 /* 39 instructions */
+/* It's quite necessary to add this much assembler for the sparc.
+ The default udiv_qrnnd (in C) is more than 10 times slower! */
+#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
+ __asm__ ("! Inlined udiv_qrnnd\n" \
+" mov 32,%%g1\n" \
+" subcc %1,%2,%%g0\n" \
+"1: bcs 5f\n" \
+" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
+" sub %1,%2,%1 ! this kills msb of n\n" \
+" addx %1,%1,%1 ! so this can't give carry\n" \
+" subcc %%g1,1,%%g1\n" \
+"2: bne 1b\n" \
+" subcc %1,%2,%%g0\n" \
+" bcs 3f\n" \
+" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
+" b 3f\n" \
+" sub %1,%2,%1 ! this kills msb of n\n" \
+"4: sub %1,%2,%1\n" \
+"5: addxcc %1,%1,%1\n" \
+" bcc 2b\n" \
+" subcc %%g1,1,%%g1\n" \
+"! Got carry from n. Subtract next step to cancel this carry.\n" \
+" bne 4b\n" \
+" addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
+" sub %1,%2,%1\n" \
+"3: xnor %0,0,%0\n" \
+" ! End of inline udiv_qrnnd" \
+ : "=&r" ((USItype) (__q)), \
+ "=&r" ((USItype) (__r)) \
+ : "r" ((USItype) (__d)), \
+ "1" ((USItype) (__n1)), \
+ "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
+#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
+#endif /* __sparclite__ */
+#endif /* __sparc_v8__ */
+#endif /* sparc32 */
+
+#if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
+ && W_TYPE_SIZE == 64
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("addcc %r4,%5,%1\n\t" \
+ "add %r2,%3,%0\n\t" \
+ "bcs,a,pn %%xcc, 1f\n\t" \
+ "add %0, 1, %0\n" \
+ "1:" \
+ : "=r" ((UDItype)(sh)), \
+ "=&r" ((UDItype)(sl)) \
+ : "%rJ" ((UDItype)(ah)), \
+ "rI" ((UDItype)(bh)), \
+ "%rJ" ((UDItype)(al)), \
+ "rI" ((UDItype)(bl)) \
+ __CLOBBER_CC)
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subcc %r4,%5,%1\n\t" \
+ "sub %r2,%3,%0\n\t" \
+ "bcs,a,pn %%xcc, 1f\n\t" \
+ "sub %0, 1, %0\n\t" \
+ "1:" \
+ : "=r" ((UDItype)(sh)), \
+ "=&r" ((UDItype)(sl)) \
+ : "rJ" ((UDItype)(ah)), \
+ "rI" ((UDItype)(bh)), \
+ "rJ" ((UDItype)(al)), \
+ "rI" ((UDItype)(bl)) \
+ __CLOBBER_CC)
+
+#define umul_ppmm(wh, wl, u, v) \
+ do { \
+ UDItype tmp1, tmp2, tmp3, tmp4; \
+ __asm__ __volatile__ ( \
+ "srl %7,0,%3\n\t" \
+ "mulx %3,%6,%1\n\t" \
+ "srlx %6,32,%2\n\t" \
+ "mulx %2,%3,%4\n\t" \
+ "sllx %4,32,%5\n\t" \
+ "srl %6,0,%3\n\t" \
+ "sub %1,%5,%5\n\t" \
+ "srlx %5,32,%5\n\t" \
+ "addcc %4,%5,%4\n\t" \
+ "srlx %7,32,%5\n\t" \
+ "mulx %3,%5,%3\n\t" \
+ "mulx %2,%5,%5\n\t" \
+ "sethi %%hi(0x80000000),%2\n\t" \
+ "addcc %4,%3,%4\n\t" \
+ "srlx %4,32,%4\n\t" \
+ "add %2,%2,%2\n\t" \
+ "movcc %%xcc,%%g0,%2\n\t" \
+ "addcc %5,%4,%5\n\t" \
+ "sllx %3,32,%3\n\t" \
+ "add %1,%3,%1\n\t" \
+ "add %5,%2,%0" \
+ : "=r" ((UDItype)(wh)), \
+ "=&r" ((UDItype)(wl)), \
+ "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
+ : "r" ((UDItype)(u)), \
+ "r" ((UDItype)(v)) \
+ __CLOBBER_CC); \
+ } while (0)
+#define UMUL_TIME 96
+#define UDIV_TIME 230
+#endif /* sparc64 */
+
+#if defined (__vax__) && W_TYPE_SIZE == 32
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
+ : "=g" ((USItype) (sh)), \
+ "=&g" ((USItype) (sl)) \
+ : "%0" ((USItype) (ah)), \
+ "g" ((USItype) (bh)), \
+ "%1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
+ : "=g" ((USItype) (sh)), \
+ "=&g" ((USItype) (sl)) \
+ : "0" ((USItype) (ah)), \
+ "g" ((USItype) (bh)), \
+ "1" ((USItype) (al)), \
+ "g" ((USItype) (bl)))
+#define umul_ppmm(xh, xl, m0, m1) \
+ do { \
+ union { \
+ UDItype __ll; \
+ struct {USItype __l, __h;} __i; \
+ } __xx; \
+ USItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("emul %1,%2,$0,%0" \
+ : "=r" (__xx.__ll) \
+ : "g" (__m0), \
+ "g" (__m1)); \
+ (xh) = __xx.__i.__h; \
+ (xl) = __xx.__i.__l; \
+ (xh) += ((((SItype) __m0 >> 31) & __m1) \
+ + (((SItype) __m1 >> 31) & __m0)); \
+ } while (0)
+#define sdiv_qrnnd(q, r, n1, n0, d) \
+ do { \
+ union {DItype __ll; \
+ struct {SItype __l, __h;} __i; \
+ } __xx; \
+ __xx.__i.__h = n1; __xx.__i.__l = n0; \
+ __asm__ ("ediv %3,%2,%0,%1" \
+ : "=g" (q), "=g" (r) \
+ : "g" (__xx.__ll), "g" (d)); \
+ } while (0)
+#endif /* __vax__ */
+
+#if defined (__xtensa__) && W_TYPE_SIZE == 32
+/* This code is not Xtensa-configuration-specific, so rely on the compiler
+ to expand builtin functions depending on what configuration features
+ are available. This avoids library calls when the operation can be
+ performed in-line. */
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ DWunion __w; \
+ __w.ll = __builtin_umulsidi3 (u, v); \
+ w1 = __w.s.high; \
+ w0 = __w.s.low; \
+ } while (0)
+#define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
+#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
+#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
+#endif /* __xtensa__ */
+
+#if defined (__z8000__) && W_TYPE_SIZE == 16
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
+ : "=r" ((unsigned int)(sh)), \
+ "=&r" ((unsigned int)(sl)) \
+ : "%0" ((unsigned int)(ah)), \
+ "r" ((unsigned int)(bh)), \
+ "%1" ((unsigned int)(al)), \
+ "rQR" ((unsigned int)(bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
+ : "=r" ((unsigned int)(sh)), \
+ "=&r" ((unsigned int)(sl)) \
+ : "0" ((unsigned int)(ah)), \
+ "r" ((unsigned int)(bh)), \
+ "1" ((unsigned int)(al)), \
+ "rQR" ((unsigned int)(bl)))
+#define umul_ppmm(xh, xl, m0, m1) \
+ do { \
+ union {long int __ll; \
+ struct {unsigned int __h, __l;} __i; \
+ } __xx; \
+ unsigned int __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mult %S0,%H3" \
+ : "=r" (__xx.__i.__h), \
+ "=r" (__xx.__i.__l) \
+ : "%1" (__m0), \
+ "rQR" (__m1)); \
+ (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
+ (xh) += ((((signed int) __m0 >> 15) & __m1) \
+ + (((signed int) __m1 >> 15) & __m0)); \
+ } while (0)
+#endif /* __z8000__ */
+
+#endif /* __GNUC__ */
+
+/* If this machine has no inline assembler, use C macros. */
+
+#if !defined (add_ssaaaa)
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ do { \
+ UWtype __x; \
+ __x = (al) + (bl); \
+ (sh) = (ah) + (bh) + (__x < (al)); \
+ (sl) = __x; \
+ } while (0)
+#endif
+
+#if !defined (sub_ddmmss)
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ do { \
+ UWtype __x; \
+ __x = (al) - (bl); \
+ (sh) = (ah) - (bh) - (__x > (al)); \
+ (sl) = __x; \
+ } while (0)
+#endif
+
+/* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
+ smul_ppmm. */
+#if !defined (umul_ppmm) && defined (smul_ppmm)
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ UWtype __w1; \
+ UWtype __xm0 = (u), __xm1 = (v); \
+ smul_ppmm (__w1, w0, __xm0, __xm1); \
+ (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
+ + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
+ } while (0)
+#endif
+
+/* If we still don't have umul_ppmm, define it using plain C. */
+#if !defined (umul_ppmm)
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ UWtype __x0, __x1, __x2, __x3; \
+ UHWtype __ul, __vl, __uh, __vh; \
+ \
+ __ul = __ll_lowpart (u); \
+ __uh = __ll_highpart (u); \
+ __vl = __ll_lowpart (v); \
+ __vh = __ll_highpart (v); \
+ \
+ __x0 = (UWtype) __ul * __vl; \
+ __x1 = (UWtype) __ul * __vh; \
+ __x2 = (UWtype) __uh * __vl; \
+ __x3 = (UWtype) __uh * __vh; \
+ \
+ __x1 += __ll_highpart (__x0);/* this can't give carry */ \
+ __x1 += __x2; /* but this indeed can */ \
+ if (__x1 < __x2) /* did we get it? */ \
+ __x3 += __ll_B; /* yes, add it in the proper pos. */ \
+ \
+ (w1) = __x3 + __ll_highpart (__x1); \
+ (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
+ } while (0)
+#endif
+
+#if !defined (__umulsidi3)
+#define __umulsidi3(u, v) \
+ ({DWunion __w; \
+ umul_ppmm (__w.s.high, __w.s.low, u, v); \
+ __w.ll; })
+#endif
+
+/* Define this unconditionally, so it can be used for debugging. */
+#define __udiv_qrnnd_c(q, r, n1, n0, d) \
+ do { \
+ UWtype __d1, __d0, __q1, __q0; \
+ UWtype __r1, __r0, __m; \
+ __d1 = __ll_highpart (d); \
+ __d0 = __ll_lowpart (d); \
+ \
+ __r1 = (n1) % __d1; \
+ __q1 = (n1) / __d1; \
+ __m = (UWtype) __q1 * __d0; \
+ __r1 = __r1 * __ll_B | __ll_highpart (n0); \
+ if (__r1 < __m) \
+ { \
+ __q1--, __r1 += (d); \
+ if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
+ if (__r1 < __m) \
+ __q1--, __r1 += (d); \
+ } \
+ __r1 -= __m; \
+ \
+ __r0 = __r1 % __d1; \
+ __q0 = __r1 / __d1; \
+ __m = (UWtype) __q0 * __d0; \
+ __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
+ if (__r0 < __m) \
+ { \
+ __q0--, __r0 += (d); \
+ if (__r0 >= (d)) \
+ if (__r0 < __m) \
+ __q0--, __r0 += (d); \
+ } \
+ __r0 -= __m; \
+ \
+ (q) = (UWtype) __q1 * __ll_B | __q0; \
+ (r) = __r0; \
+ } while (0)
+
+/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
+ __udiv_w_sdiv (defined in libgcc or elsewhere). */
+#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
+#define udiv_qrnnd(q, r, nh, nl, d) \
+ do { \
+ USItype __r; \
+ (q) = __udiv_w_sdiv (&__r, nh, nl, d); \
+ (r) = __r; \
+ } while (0)
+#endif
+
+/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
+#if !defined (udiv_qrnnd)
+#define UDIV_NEEDS_NORMALIZATION 1
+#define udiv_qrnnd __udiv_qrnnd_c
+#endif
+
+#if !defined (count_leading_zeros)
+#define count_leading_zeros(count, x) \
+ do { \
+ UWtype __xr = (x); \
+ UWtype __a; \
+ \
+ if (W_TYPE_SIZE <= 32) \
+ { \
+ __a = __xr < ((UWtype)1<<2*__BITS4) \
+ ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
+ : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
+ } \
+ else \
+ { \
+ for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
+ if (((__xr >> __a) & 0xff) != 0) \
+ break; \
+ } \
+ \
+ (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
+ } while (0)
+#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
+#endif
+
+#if !defined (count_trailing_zeros)
+/* Define count_trailing_zeros using count_leading_zeros. The latter might be
+ defined in asm, but if it is not, the C version above is good enough. */
+#define count_trailing_zeros(count, x) \
+ do { \
+ UWtype __ctz_x = (x); \
+ UWtype __ctz_c; \
+ count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
+ (count) = W_TYPE_SIZE - 1 - __ctz_c; \
+ } while (0)
+#endif
+
+#ifndef UDIV_NEEDS_NORMALIZATION
+#define UDIV_NEEDS_NORMALIZATION 0
+#endif
--- /dev/null
+/* __clz_tab -- support for longlong.h
+ Copyright (C) 1991, 1993, 1994, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library. Its master source is NOT part of
+ the C library, however. The master source lives in the GNU MP Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#if 0
+#include <gmp.h>
+#include "gmp-impl.h"
+#endif
+
+const
+unsigned char __clz_tab[] =
+{
+ 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+ 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+ 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+ 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+ 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+ 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+};
--- /dev/null
+/* Software floating-point emulation.
+ Basic one-word fraction declaration and manipulation.
+ 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 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)
+#define _FP_FRAC_SET_1(X,I) (X##_f = I)
+#define _FP_FRAC_HIGH_1(X) (X##_f)
+#define _FP_FRAC_LOW_1(X) (X##_f)
+#define _FP_FRAC_WORD_1(X,w) (X##_f)
+
+#define _FP_FRAC_ADDI_1(X,I) (X##_f += I)
+#define _FP_FRAC_SLL_1(X,N) \
+ do { \
+ if (__builtin_constant_p(N) && (N) == 1) \
+ X##_f += X##_f; \
+ else \
+ X##_f <<= (N); \
+ } while (0)
+#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)))
+
+#define _FP_FRAC_ADD_1(R,X,Y) (R##_f = X##_f + Y##_f)
+#define _FP_FRAC_SUB_1(R,X,Y) (R##_f = X##_f - Y##_f)
+#define _FP_FRAC_DEC_1(X,Y) (X##_f -= Y##_f)
+#define _FP_FRAC_CLZ_1(z, X) __FP_CLZ(z, X##_f)
+
+/* Predicates */
+#define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE)X##_f < 0)
+#define _FP_FRAC_ZEROP_1(X) (X##_f == 0)
+#define _FP_FRAC_OVERP_1(fs,X) (X##_f & _FP_OVERFLOW_##fs)
+#define _FP_FRAC_CLEAR_OVERP_1(fs,X) (X##_f &= ~_FP_OVERFLOW_##fs)
+#define _FP_FRAC_EQ_1(X, Y) (X##_f == Y##_f)
+#define _FP_FRAC_GE_1(X, Y) (X##_f >= Y##_f)
+#define _FP_FRAC_GT_1(X, Y) (X##_f > Y##_f)
+
+#define _FP_ZEROFRAC_1 0
+#define _FP_MINFRAC_1 1
+#define _FP_MAXFRAC_1 (~(_FP_WS_TYPE)0)
+
+/*
+ * Unpack the raw bits of a native fp value. Do not classify or
+ * normalize the data.
+ */
+
+#define _FP_UNPACK_RAW_1(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs _flo; _flo.flt = (val); \
+ \
+ X##_f = _flo.bits.frac; \
+ X##_e = _flo.bits.exp; \
+ X##_s = _flo.bits.sign; \
+ } while (0)
+
+#define _FP_UNPACK_RAW_1_P(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ X##_f = _flo->bits.frac; \
+ X##_e = _flo->bits.exp; \
+ X##_s = _flo->bits.sign; \
+ } while (0)
+
+/*
+ * Repack the raw bits of a native fp value.
+ */
+
+#define _FP_PACK_RAW_1(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs _flo; \
+ \
+ _flo.bits.frac = X##_f; \
+ _flo.bits.exp = X##_e; \
+ _flo.bits.sign = X##_s; \
+ \
+ (val) = _flo.flt; \
+ } while (0)
+
+#define _FP_PACK_RAW_1_P(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ _flo->bits.frac = X##_f; \
+ _flo->bits.exp = X##_e; \
+ _flo->bits.sign = X##_s; \
+ } while (0)
+
+
+/*
+ * Multiplication algorithms:
+ */
+
+/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the
+ multiplication immediately. */
+
+#define _FP_MUL_MEAT_1_imm(wfracbits, R, X, Y) \
+ do { \
+ R##_f = X##_f * Y##_f; \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_1(R, wfracbits-1, 2*wfracbits); \
+ } while (0)
+
+/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
+
+#define _FP_MUL_MEAT_1_wide(wfracbits, R, X, Y, doit) \
+ do { \
+ _FP_W_TYPE _Z_f0, _Z_f1; \
+ doit(_Z_f1, _Z_f0, X##_f, Y##_f); \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_2(_Z, wfracbits-1, 2*wfracbits); \
+ R##_f = _Z_f0; \
+ } while (0)
+
+/* Finally, a simple widening multiply algorithm. What fun! */
+
+#define _FP_MUL_MEAT_1_hard(wfracbits, R, X, Y) \
+ do { \
+ _FP_W_TYPE _xh, _xl, _yh, _yl, _z_f0, _z_f1, _a_f0, _a_f1; \
+ \
+ /* split the words in half */ \
+ _xh = X##_f >> (_FP_W_TYPE_SIZE/2); \
+ _xl = X##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
+ _yh = Y##_f >> (_FP_W_TYPE_SIZE/2); \
+ _yl = Y##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
+ \
+ /* multiply the pieces */ \
+ _z_f0 = _xl * _yl; \
+ _a_f0 = _xh * _yl; \
+ _a_f1 = _xl * _yh; \
+ _z_f1 = _xh * _yh; \
+ \
+ /* reassemble into two full words */ \
+ if ((_a_f0 += _a_f1) < _a_f1) \
+ _z_f1 += (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2); \
+ _a_f1 = _a_f0 >> (_FP_W_TYPE_SIZE/2); \
+ _a_f0 = _a_f0 << (_FP_W_TYPE_SIZE/2); \
+ _FP_FRAC_ADD_2(_z, _z, _a); \
+ \
+ /* normalize */ \
+ _FP_FRAC_SRS_2(_z, wfracbits - 1, 2*wfracbits); \
+ R##_f = _z_f0; \
+ } while (0)
+
+
+/*
+ * Division algorithms:
+ */
+
+/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the
+ division immediately. Give this macro either _FP_DIV_HELP_imm for
+ C primitives or _FP_DIV_HELP_ldiv for the ISO function. Which you
+ choose will depend on what the compiler does with divrem4. */
+
+#define _FP_DIV_MEAT_1_imm(fs, R, X, Y, doit) \
+ do { \
+ _FP_W_TYPE _q, _r; \
+ X##_f <<= (X##_f < Y##_f \
+ ? R##_e--, _FP_WFRACBITS_##fs \
+ : _FP_WFRACBITS_##fs - 1); \
+ doit(_q, _r, X##_f, Y##_f); \
+ R##_f = _q | (_r != 0); \
+ } while (0)
+
+/* GCC's longlong.h defines a 2W / 1W => (1W,1W) primitive udiv_qrnnd
+ that may be useful in this situation. This first is for a primitive
+ that requires normalization, the second for one that does not. Look
+ for UDIV_NEEDS_NORMALIZATION to tell which your machine needs. */
+
+#define _FP_DIV_MEAT_1_udiv_norm(fs, R, X, Y) \
+ do { \
+ _FP_W_TYPE _nh, _nl, _q, _r, _y; \
+ \
+ /* Normalize Y -- i.e. make the most significant bit set. */ \
+ _y = Y##_f << _FP_WFRACXBITS_##fs; \
+ \
+ /* Shift X op correspondingly high, that is, up one full word. */ \
+ if (X##_f < Y##_f) \
+ { \
+ R##_e--; \
+ _nl = 0; \
+ _nh = X##_f; \
+ } \
+ else \
+ { \
+ _nl = X##_f << (_FP_W_TYPE_SIZE - 1); \
+ _nh = X##_f >> 1; \
+ } \
+ \
+ udiv_qrnnd(_q, _r, _nh, _nl, _y); \
+ R##_f = _q | (_r != 0); \
+ } while (0)
+
+#define _FP_DIV_MEAT_1_udiv(fs, R, X, Y) \
+ do { \
+ _FP_W_TYPE _nh, _nl, _q, _r; \
+ if (X##_f < Y##_f) \
+ { \
+ R##_e--; \
+ _nl = X##_f << _FP_WFRACBITS_##fs; \
+ _nh = X##_f >> _FP_WFRACXBITS_##fs; \
+ } \
+ else \
+ { \
+ _nl = X##_f << (_FP_WFRACBITS_##fs - 1); \
+ _nh = X##_f >> (_FP_WFRACXBITS_##fs + 1); \
+ } \
+ udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \
+ R##_f = _q | (_r != 0); \
+ } while (0)
+
+
+/*
+ * Square root algorithms:
+ * We have just one right now, maybe Newton approximation
+ * should be added for those machines where division is fast.
+ */
+
+#define _FP_SQRT_MEAT_1(R, S, T, X, q) \
+ do { \
+ while (q != _FP_WORK_ROUND) \
+ { \
+ T##_f = S##_f + q; \
+ if (T##_f <= X##_f) \
+ { \
+ S##_f = T##_f + q; \
+ X##_f -= T##_f; \
+ R##_f += q; \
+ } \
+ _FP_FRAC_SLL_1(X, 1); \
+ q >>= 1; \
+ } \
+ if (X##_f) \
+ { \
+ if (S##_f < X##_f) \
+ R##_f |= _FP_WORK_ROUND; \
+ R##_f |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+/*
+ * Assembly/disassembly for converting to/from integral types.
+ * No shifting or overflow handled here.
+ */
+
+#define _FP_FRAC_ASSEMBLE_1(r, X, rsize) (r = X##_f)
+#define _FP_FRAC_DISASSEMBLE_1(X, r, rsize) (X##_f = r)
+
+
+/*
+ * Convert FP values between word sizes
+ */
+
+#define _FP_FRAC_COPY_1_1(D, S) (D##_f = S##_f)
--- /dev/null
+/* Software floating-point emulation.
+ Basic two-word fraction declaration and manipulation.
+ Copyright (C) 1997,1998,1999,2006,2007 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#define _FP_FRAC_DECL_2(X) _FP_W_TYPE X##_f0, X##_f1
+#define _FP_FRAC_COPY_2(D,S) (D##_f0 = S##_f0, D##_f1 = S##_f1)
+#define _FP_FRAC_SET_2(X,I) __FP_FRAC_SET_2(X, I)
+#define _FP_FRAC_HIGH_2(X) (X##_f1)
+#define _FP_FRAC_LOW_2(X) (X##_f0)
+#define _FP_FRAC_WORD_2(X,w) (X##_f##w)
+
+#define _FP_FRAC_SLL_2(X,N) \
+(void)(((N) < _FP_W_TYPE_SIZE) \
+ ? ({ \
+ if (__builtin_constant_p(N) && (N) == 1) \
+ { \
+ X##_f1 = X##_f1 + X##_f1 + (((_FP_WS_TYPE)(X##_f0)) < 0); \
+ X##_f0 += X##_f0; \
+ } \
+ else \
+ { \
+ X##_f1 = X##_f1 << (N) | X##_f0 >> (_FP_W_TYPE_SIZE - (N)); \
+ X##_f0 <<= (N); \
+ } \
+ 0; \
+ }) \
+ : ({ \
+ X##_f1 = X##_f0 << ((N) - _FP_W_TYPE_SIZE); \
+ X##_f0 = 0; \
+ }))
+
+
+#define _FP_FRAC_SRL_2(X,N) \
+(void)(((N) < _FP_W_TYPE_SIZE) \
+ ? ({ \
+ X##_f0 = X##_f0 >> (N) | X##_f1 << (_FP_W_TYPE_SIZE - (N)); \
+ X##_f1 >>= (N); \
+ }) \
+ : ({ \
+ X##_f0 = X##_f1 >> ((N) - _FP_W_TYPE_SIZE); \
+ X##_f1 = 0; \
+ }))
+
+/* Right shift with sticky-lsb. */
+#define _FP_FRAC_SRST_2(X,S, N,sz) \
+(void)(((N) < _FP_W_TYPE_SIZE) \
+ ? ({ \
+ S = (__builtin_constant_p(N) && (N) == 1 \
+ ? X##_f0 & 1 \
+ : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0); \
+ X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N)); \
+ X##_f1 >>= (N); \
+ }) \
+ : ({ \
+ S = ((((N) == _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \
+ | X##_f0) != 0); \
+ X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE)); \
+ X##_f1 = 0; \
+ }))
+
+#define _FP_FRAC_SRS_2(X,N,sz) \
+(void)(((N) < _FP_W_TYPE_SIZE) \
+ ? ({ \
+ X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) | \
+ (__builtin_constant_p(N) && (N) == 1 \
+ ? X##_f0 & 1 \
+ : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \
+ X##_f1 >>= (N); \
+ }) \
+ : ({ \
+ X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE) | \
+ ((((N) == _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \
+ | X##_f0) != 0)); \
+ X##_f1 = 0; \
+ }))
+
+#define _FP_FRAC_ADDI_2(X,I) \
+ __FP_FRAC_ADDI_2(X##_f1, X##_f0, I)
+
+#define _FP_FRAC_ADD_2(R,X,Y) \
+ __FP_FRAC_ADD_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
+
+#define _FP_FRAC_SUB_2(R,X,Y) \
+ __FP_FRAC_SUB_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
+
+#define _FP_FRAC_DEC_2(X,Y) \
+ __FP_FRAC_DEC_2(X##_f1, X##_f0, Y##_f1, Y##_f0)
+
+#define _FP_FRAC_CLZ_2(R,X) \
+ do { \
+ if (X##_f1) \
+ __FP_CLZ(R,X##_f1); \
+ else \
+ { \
+ __FP_CLZ(R,X##_f0); \
+ R += _FP_W_TYPE_SIZE; \
+ } \
+ } while(0)
+
+/* Predicates */
+#define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0)
+#define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0)
+#define _FP_FRAC_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs)
+#define _FP_FRAC_CLEAR_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs)
+#define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0)
+#define _FP_FRAC_GT_2(X, Y) \
+ (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 > Y##_f0))
+#define _FP_FRAC_GE_2(X, Y) \
+ (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 >= Y##_f0))
+
+#define _FP_ZEROFRAC_2 0, 0
+#define _FP_MINFRAC_2 0, 1
+#define _FP_MAXFRAC_2 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0)
+
+/*
+ * Internals
+ */
+
+#define __FP_FRAC_SET_2(X,I1,I0) (X##_f0 = I0, X##_f1 = I1)
+
+#define __FP_CLZ_2(R, xh, xl) \
+ do { \
+ if (xh) \
+ __FP_CLZ(R,xh); \
+ else \
+ { \
+ __FP_CLZ(R,xl); \
+ R += _FP_W_TYPE_SIZE; \
+ } \
+ } while(0)
+
+#if 0
+
+#ifndef __FP_FRAC_ADDI_2
+#define __FP_FRAC_ADDI_2(xh, xl, i) \
+ (xh += ((xl += i) < i))
+#endif
+#ifndef __FP_FRAC_ADD_2
+#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \
+ (rh = xh + yh + ((rl = xl + yl) < xl))
+#endif
+#ifndef __FP_FRAC_SUB_2
+#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \
+ (rh = xh - yh - ((rl = xl - yl) > xl))
+#endif
+#ifndef __FP_FRAC_DEC_2
+#define __FP_FRAC_DEC_2(xh, xl, yh, yl) \
+ do { \
+ UWtype _t = xl; \
+ xh -= yh + ((xl -= yl) > _t); \
+ } while (0)
+#endif
+
+#else
+
+#undef __FP_FRAC_ADDI_2
+#define __FP_FRAC_ADDI_2(xh, xl, i) add_ssaaaa(xh, xl, xh, xl, 0, i)
+#undef __FP_FRAC_ADD_2
+#define __FP_FRAC_ADD_2 add_ssaaaa
+#undef __FP_FRAC_SUB_2
+#define __FP_FRAC_SUB_2 sub_ddmmss
+#undef __FP_FRAC_DEC_2
+#define __FP_FRAC_DEC_2(xh, xl, yh, yl) sub_ddmmss(xh, xl, xh, xl, yh, yl)
+
+#endif
+
+/*
+ * Unpack the raw bits of a native fp value. Do not classify or
+ * normalize the data.
+ */
+
+#define _FP_UNPACK_RAW_2(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs _flo; _flo.flt = (val); \
+ \
+ X##_f0 = _flo.bits.frac0; \
+ X##_f1 = _flo.bits.frac1; \
+ X##_e = _flo.bits.exp; \
+ X##_s = _flo.bits.sign; \
+ } while (0)
+
+#define _FP_UNPACK_RAW_2_P(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ X##_f0 = _flo->bits.frac0; \
+ X##_f1 = _flo->bits.frac1; \
+ X##_e = _flo->bits.exp; \
+ X##_s = _flo->bits.sign; \
+ } while (0)
+
+
+/*
+ * Repack the raw bits of a native fp value.
+ */
+
+#define _FP_PACK_RAW_2(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs _flo; \
+ \
+ _flo.bits.frac0 = X##_f0; \
+ _flo.bits.frac1 = X##_f1; \
+ _flo.bits.exp = X##_e; \
+ _flo.bits.sign = X##_s; \
+ \
+ (val) = _flo.flt; \
+ } while (0)
+
+#define _FP_PACK_RAW_2_P(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ _flo->bits.frac0 = X##_f0; \
+ _flo->bits.frac1 = X##_f1; \
+ _flo->bits.exp = X##_e; \
+ _flo->bits.sign = X##_s; \
+ } while (0)
+
+
+/*
+ * Multiplication algorithms:
+ */
+
+/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
+
+#define _FP_MUL_MEAT_2_wide(wfracbits, R, X, Y, doit) \
+ do { \
+ _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
+ \
+ doit(_FP_FRAC_WORD_4(_z,1), _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \
+ doit(_b_f1, _b_f0, X##_f0, Y##_f1); \
+ doit(_c_f1, _c_f0, X##_f1, Y##_f0); \
+ doit(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), X##_f1, Y##_f1); \
+ \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1), 0, _b_f1, _b_f0, \
+ _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0, \
+ _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1)); \
+ \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
+ R##_f0 = _FP_FRAC_WORD_4(_z,0); \
+ R##_f1 = _FP_FRAC_WORD_4(_z,1); \
+ } while (0)
+
+/* Given a 1W * 1W => 2W primitive, do the extended multiplication.
+ Do only 3 multiplications instead of four. This one is for machines
+ where multiplication is much more expensive than subtraction. */
+
+#define _FP_MUL_MEAT_2_wide_3mul(wfracbits, R, X, Y, doit) \
+ do { \
+ _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
+ _FP_W_TYPE _d; \
+ int _c1, _c2; \
+ \
+ _b_f0 = X##_f0 + X##_f1; \
+ _c1 = _b_f0 < X##_f0; \
+ _b_f1 = Y##_f0 + Y##_f1; \
+ _c2 = _b_f1 < Y##_f0; \
+ doit(_d, _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \
+ doit(_FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1), _b_f0, _b_f1); \
+ doit(_c_f1, _c_f0, X##_f1, Y##_f1); \
+ \
+ _b_f0 &= -_c2; \
+ _b_f1 &= -_c1; \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1), (_c1 & _c2), 0, _d, \
+ 0, _FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1)); \
+ __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _b_f0); \
+ __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _b_f1); \
+ __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1), \
+ 0, _d, _FP_FRAC_WORD_4(_z,0)); \
+ __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
+ _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0); \
+ __FP_FRAC_ADD_2(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), \
+ _c_f1, _c_f0, \
+ _FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2)); \
+ \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
+ R##_f0 = _FP_FRAC_WORD_4(_z,0); \
+ R##_f1 = _FP_FRAC_WORD_4(_z,1); \
+ } while (0)
+
+#define _FP_MUL_MEAT_2_gmp(wfracbits, R, X, Y) \
+ do { \
+ _FP_FRAC_DECL_4(_z); \
+ _FP_W_TYPE _x[2], _y[2]; \
+ _x[0] = X##_f0; _x[1] = X##_f1; \
+ _y[0] = Y##_f0; _y[1] = Y##_f1; \
+ \
+ mpn_mul_n(_z_f, _x, _y, 2); \
+ \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
+ R##_f0 = _z_f[0]; \
+ R##_f1 = _z_f[1]; \
+ } while (0)
+
+/* Do at most 120x120=240 bits multiplication using double floating
+ point multiplication. This is useful if floating point
+ multiplication has much bigger throughput than integer multiply.
+ It is supposed to work for _FP_W_TYPE_SIZE 64 and wfracbits
+ between 106 and 120 only.
+ Caller guarantees that X and Y has (1LLL << (wfracbits - 1)) set.
+ SETFETZ is a macro which will disable all FPU exceptions and set rounding
+ towards zero, RESETFE should optionally reset it back. */
+
+#define _FP_MUL_MEAT_2_120_240_double(wfracbits, R, X, Y, setfetz, resetfe) \
+ do { \
+ static const double _const[] = { \
+ /* 2^-24 */ 5.9604644775390625e-08, \
+ /* 2^-48 */ 3.5527136788005009e-15, \
+ /* 2^-72 */ 2.1175823681357508e-22, \
+ /* 2^-96 */ 1.2621774483536189e-29, \
+ /* 2^28 */ 2.68435456e+08, \
+ /* 2^4 */ 1.600000e+01, \
+ /* 2^-20 */ 9.5367431640625e-07, \
+ /* 2^-44 */ 5.6843418860808015e-14, \
+ /* 2^-68 */ 3.3881317890172014e-21, \
+ /* 2^-92 */ 2.0194839173657902e-28, \
+ /* 2^-116 */ 1.2037062152420224e-35}; \
+ double _a240, _b240, _c240, _d240, _e240, _f240, \
+ _g240, _h240, _i240, _j240, _k240; \
+ union { double d; UDItype i; } _l240, _m240, _n240, _o240, \
+ _p240, _q240, _r240, _s240; \
+ UDItype _t240, _u240, _v240, _w240, _x240, _y240 = 0; \
+ \
+ if (wfracbits < 106 || wfracbits > 120) \
+ abort(); \
+ \
+ setfetz; \
+ \
+ _e240 = (double)(long)(X##_f0 & 0xffffff); \
+ _j240 = (double)(long)(Y##_f0 & 0xffffff); \
+ _d240 = (double)(long)((X##_f0 >> 24) & 0xffffff); \
+ _i240 = (double)(long)((Y##_f0 >> 24) & 0xffffff); \
+ _c240 = (double)(long)(((X##_f1 << 16) & 0xffffff) | (X##_f0 >> 48)); \
+ _h240 = (double)(long)(((Y##_f1 << 16) & 0xffffff) | (Y##_f0 >> 48)); \
+ _b240 = (double)(long)((X##_f1 >> 8) & 0xffffff); \
+ _g240 = (double)(long)((Y##_f1 >> 8) & 0xffffff); \
+ _a240 = (double)(long)(X##_f1 >> 32); \
+ _f240 = (double)(long)(Y##_f1 >> 32); \
+ _e240 *= _const[3]; \
+ _j240 *= _const[3]; \
+ _d240 *= _const[2]; \
+ _i240 *= _const[2]; \
+ _c240 *= _const[1]; \
+ _h240 *= _const[1]; \
+ _b240 *= _const[0]; \
+ _g240 *= _const[0]; \
+ _s240.d = _e240*_j240;\
+ _r240.d = _d240*_j240 + _e240*_i240;\
+ _q240.d = _c240*_j240 + _d240*_i240 + _e240*_h240;\
+ _p240.d = _b240*_j240 + _c240*_i240 + _d240*_h240 + _e240*_g240;\
+ _o240.d = _a240*_j240 + _b240*_i240 + _c240*_h240 + _d240*_g240 + _e240*_f240;\
+ _n240.d = _a240*_i240 + _b240*_h240 + _c240*_g240 + _d240*_f240; \
+ _m240.d = _a240*_h240 + _b240*_g240 + _c240*_f240; \
+ _l240.d = _a240*_g240 + _b240*_f240; \
+ _k240 = _a240*_f240; \
+ _r240.d += _s240.d; \
+ _q240.d += _r240.d; \
+ _p240.d += _q240.d; \
+ _o240.d += _p240.d; \
+ _n240.d += _o240.d; \
+ _m240.d += _n240.d; \
+ _l240.d += _m240.d; \
+ _k240 += _l240.d; \
+ _s240.d -= ((_const[10]+_s240.d)-_const[10]); \
+ _r240.d -= ((_const[9]+_r240.d)-_const[9]); \
+ _q240.d -= ((_const[8]+_q240.d)-_const[8]); \
+ _p240.d -= ((_const[7]+_p240.d)-_const[7]); \
+ _o240.d += _const[7]; \
+ _n240.d += _const[6]; \
+ _m240.d += _const[5]; \
+ _l240.d += _const[4]; \
+ if (_s240.d != 0.0) _y240 = 1; \
+ if (_r240.d != 0.0) _y240 = 1; \
+ if (_q240.d != 0.0) _y240 = 1; \
+ if (_p240.d != 0.0) _y240 = 1; \
+ _t240 = (DItype)_k240; \
+ _u240 = _l240.i; \
+ _v240 = _m240.i; \
+ _w240 = _n240.i; \
+ _x240 = _o240.i; \
+ R##_f1 = (_t240 << (128 - (wfracbits - 1))) \
+ | ((_u240 & 0xffffff) >> ((wfracbits - 1) - 104)); \
+ R##_f0 = ((_u240 & 0xffffff) << (168 - (wfracbits - 1))) \
+ | ((_v240 & 0xffffff) << (144 - (wfracbits - 1))) \
+ | ((_w240 & 0xffffff) << (120 - (wfracbits - 1))) \
+ | ((_x240 & 0xffffff) >> ((wfracbits - 1) - 96)) \
+ | _y240; \
+ resetfe; \
+ } while (0)
+
+/*
+ * Division algorithms:
+ */
+
+#define _FP_DIV_MEAT_2_udiv(fs, R, X, Y) \
+ do { \
+ _FP_W_TYPE _n_f2, _n_f1, _n_f0, _r_f1, _r_f0, _m_f1, _m_f0; \
+ if (_FP_FRAC_GT_2(X, Y)) \
+ { \
+ _n_f2 = X##_f1 >> 1; \
+ _n_f1 = X##_f1 << (_FP_W_TYPE_SIZE - 1) | X##_f0 >> 1; \
+ _n_f0 = X##_f0 << (_FP_W_TYPE_SIZE - 1); \
+ } \
+ else \
+ { \
+ R##_e--; \
+ _n_f2 = X##_f1; \
+ _n_f1 = X##_f0; \
+ _n_f0 = 0; \
+ } \
+ \
+ /* Normalize, i.e. make the most significant bit of the \
+ denominator set. */ \
+ _FP_FRAC_SLL_2(Y, _FP_WFRACXBITS_##fs); \
+ \
+ udiv_qrnnd(R##_f1, _r_f1, _n_f2, _n_f1, Y##_f1); \
+ umul_ppmm(_m_f1, _m_f0, R##_f1, Y##_f0); \
+ _r_f0 = _n_f0; \
+ if (_FP_FRAC_GT_2(_m, _r)) \
+ { \
+ R##_f1--; \
+ _FP_FRAC_ADD_2(_r, Y, _r); \
+ if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
+ { \
+ R##_f1--; \
+ _FP_FRAC_ADD_2(_r, Y, _r); \
+ } \
+ } \
+ _FP_FRAC_DEC_2(_r, _m); \
+ \
+ if (_r_f1 == Y##_f1) \
+ { \
+ /* This is a special case, not an optimization \
+ (_r/Y##_f1 would not fit into UWtype). \
+ As _r is guaranteed to be < Y, R##_f0 can be either \
+ (UWtype)-1 or (UWtype)-2. But as we know what kind \
+ of bits it is (sticky, guard, round), we don't care. \
+ We also don't care what the reminder is, because the \
+ guard bit will be set anyway. -jj */ \
+ R##_f0 = -1; \
+ } \
+ else \
+ { \
+ udiv_qrnnd(R##_f0, _r_f1, _r_f1, _r_f0, Y##_f1); \
+ umul_ppmm(_m_f1, _m_f0, R##_f0, Y##_f0); \
+ _r_f0 = 0; \
+ if (_FP_FRAC_GT_2(_m, _r)) \
+ { \
+ R##_f0--; \
+ _FP_FRAC_ADD_2(_r, Y, _r); \
+ if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
+ { \
+ R##_f0--; \
+ _FP_FRAC_ADD_2(_r, Y, _r); \
+ } \
+ } \
+ if (!_FP_FRAC_EQ_2(_r, _m)) \
+ R##_f0 |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+
+#define _FP_DIV_MEAT_2_gmp(fs, R, X, Y) \
+ do { \
+ _FP_W_TYPE _x[4], _y[2], _z[4]; \
+ _y[0] = Y##_f0; _y[1] = Y##_f1; \
+ _x[0] = _x[3] = 0; \
+ if (_FP_FRAC_GT_2(X, Y)) \
+ { \
+ R##_e++; \
+ _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE) | \
+ X##_f1 >> (_FP_W_TYPE_SIZE - \
+ (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE))); \
+ _x[2] = X##_f1 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE); \
+ } \
+ else \
+ { \
+ _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE) | \
+ X##_f1 >> (_FP_W_TYPE_SIZE - \
+ (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE))); \
+ _x[2] = X##_f1 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE); \
+ } \
+ \
+ (void) mpn_divrem (_z, 0, _x, 4, _y, 2); \
+ R##_f1 = _z[1]; \
+ R##_f0 = _z[0] | ((_x[0] | _x[1]) != 0); \
+ } while (0)
+
+
+/*
+ * Square root algorithms:
+ * We have just one right now, maybe Newton approximation
+ * should be added for those machines where division is fast.
+ */
+
+#define _FP_SQRT_MEAT_2(R, S, T, X, q) \
+ do { \
+ while (q) \
+ { \
+ T##_f1 = S##_f1 + q; \
+ if (T##_f1 <= X##_f1) \
+ { \
+ S##_f1 = T##_f1 + q; \
+ X##_f1 -= T##_f1; \
+ R##_f1 += q; \
+ } \
+ _FP_FRAC_SLL_2(X, 1); \
+ q >>= 1; \
+ } \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ while (q != _FP_WORK_ROUND) \
+ { \
+ T##_f0 = S##_f0 + q; \
+ T##_f1 = S##_f1; \
+ if (T##_f1 < X##_f1 || \
+ (T##_f1 == X##_f1 && T##_f0 <= X##_f0)) \
+ { \
+ S##_f0 = T##_f0 + q; \
+ S##_f1 += (T##_f0 > S##_f0); \
+ _FP_FRAC_DEC_2(X, T); \
+ R##_f0 += q; \
+ } \
+ _FP_FRAC_SLL_2(X, 1); \
+ q >>= 1; \
+ } \
+ if (X##_f0 | X##_f1) \
+ { \
+ if (S##_f1 < X##_f1 || \
+ (S##_f1 == X##_f1 && S##_f0 < X##_f0)) \
+ R##_f0 |= _FP_WORK_ROUND; \
+ R##_f0 |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+
+/*
+ * Assembly/disassembly for converting to/from integral types.
+ * No shifting or overflow handled here.
+ */
+
+#define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \
+(void)((rsize <= _FP_W_TYPE_SIZE) \
+ ? ({ r = X##_f0; }) \
+ : ({ \
+ r = X##_f1; \
+ r <<= _FP_W_TYPE_SIZE; \
+ r += X##_f0; \
+ }))
+
+#define _FP_FRAC_DISASSEMBLE_2(X, r, rsize) \
+ do { \
+ X##_f0 = r; \
+ X##_f1 = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
+ } while (0)
+
+/*
+ * Convert FP values between word sizes
+ */
+
+#define _FP_FRAC_COPY_1_2(D, S) (D##_f = S##_f0)
+
+#define _FP_FRAC_COPY_2_1(D, S) ((D##_f0 = S##_f), (D##_f1 = 0))
+
+#define _FP_FRAC_COPY_2_2(D,S) _FP_FRAC_COPY_2(D,S)
--- /dev/null
+/* Software floating-point emulation.
+ Basic four-word fraction declaration and manipulation.
+ Copyright (C) 1997,1998,1999,2006,2007 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#define _FP_FRAC_DECL_4(X) _FP_W_TYPE X##_f[4]
+#define _FP_FRAC_COPY_4(D,S) \
+ (D##_f[0] = S##_f[0], D##_f[1] = S##_f[1], \
+ D##_f[2] = S##_f[2], D##_f[3] = S##_f[3])
+#define _FP_FRAC_SET_4(X,I) __FP_FRAC_SET_4(X, I)
+#define _FP_FRAC_HIGH_4(X) (X##_f[3])
+#define _FP_FRAC_LOW_4(X) (X##_f[0])
+#define _FP_FRAC_WORD_4(X,w) (X##_f[w])
+
+#define _FP_FRAC_SLL_4(X,N) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _up = (N) % _FP_W_TYPE_SIZE; \
+ _down = _FP_W_TYPE_SIZE - _up; \
+ if (!_up) \
+ for (_i = 3; _i >= _skip; --_i) \
+ X##_f[_i] = X##_f[_i-_skip]; \
+ else \
+ { \
+ for (_i = 3; _i > _skip; --_i) \
+ X##_f[_i] = X##_f[_i-_skip] << _up \
+ | X##_f[_i-_skip-1] >> _down; \
+ X##_f[_i--] = X##_f[0] << _up; \
+ } \
+ for (; _i >= 0; --_i) \
+ X##_f[_i] = 0; \
+ } while (0)
+
+/* This one was broken too */
+#define _FP_FRAC_SRL_4(X,N) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _down = (N) % _FP_W_TYPE_SIZE; \
+ _up = _FP_W_TYPE_SIZE - _down; \
+ if (!_down) \
+ for (_i = 0; _i <= 3-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip]; \
+ else \
+ { \
+ for (_i = 0; _i < 3-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip] >> _down \
+ | X##_f[_i+_skip+1] << _up; \
+ X##_f[_i++] = X##_f[3] >> _down; \
+ } \
+ for (; _i < 4; ++_i) \
+ X##_f[_i] = 0; \
+ } while (0)
+
+
+/* Right shift with sticky-lsb.
+ * What this actually means is that we do a standard right-shift,
+ * but that if any of the bits that fall off the right hand side
+ * were one then we always set the LSbit.
+ */
+#define _FP_FRAC_SRST_4(X,S,N,size) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _FP_W_TYPE _s; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _down = (N) % _FP_W_TYPE_SIZE; \
+ _up = _FP_W_TYPE_SIZE - _down; \
+ for (_s = _i = 0; _i < _skip; ++_i) \
+ _s |= X##_f[_i]; \
+ if (!_down) \
+ for (_i = 0; _i <= 3-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip]; \
+ else \
+ { \
+ _s |= X##_f[_i] << _up; \
+ for (_i = 0; _i < 3-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip] >> _down \
+ | X##_f[_i+_skip+1] << _up; \
+ X##_f[_i++] = X##_f[3] >> _down; \
+ } \
+ for (; _i < 4; ++_i) \
+ X##_f[_i] = 0; \
+ S = (_s != 0); \
+ } while (0)
+
+#define _FP_FRAC_SRS_4(X,N,size) \
+ do { \
+ int _sticky; \
+ _FP_FRAC_SRST_4(X, _sticky, N, size); \
+ X##_f[0] |= _sticky; \
+ } while (0)
+
+#define _FP_FRAC_ADD_4(R,X,Y) \
+ __FP_FRAC_ADD_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \
+ X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
+ Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0])
+
+#define _FP_FRAC_SUB_4(R,X,Y) \
+ __FP_FRAC_SUB_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \
+ X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
+ Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0])
+
+#define _FP_FRAC_DEC_4(X,Y) \
+ __FP_FRAC_DEC_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
+ Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0])
+
+#define _FP_FRAC_ADDI_4(X,I) \
+ __FP_FRAC_ADDI_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], I)
+
+#define _FP_ZEROFRAC_4 0,0,0,0
+#define _FP_MINFRAC_4 0,0,0,1
+#define _FP_MAXFRAC_4 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0)
+
+#define _FP_FRAC_ZEROP_4(X) ((X##_f[0] | X##_f[1] | X##_f[2] | X##_f[3]) == 0)
+#define _FP_FRAC_NEGP_4(X) ((_FP_WS_TYPE)X##_f[3] < 0)
+#define _FP_FRAC_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs)
+#define _FP_FRAC_CLEAR_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs)
+
+#define _FP_FRAC_EQ_4(X,Y) \
+ (X##_f[0] == Y##_f[0] && X##_f[1] == Y##_f[1] \
+ && X##_f[2] == Y##_f[2] && X##_f[3] == Y##_f[3])
+
+#define _FP_FRAC_GT_4(X,Y) \
+ (X##_f[3] > Y##_f[3] || \
+ (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \
+ (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \
+ (X##_f[1] == Y##_f[1] && X##_f[0] > Y##_f[0]) \
+ )) \
+ )) \
+ )
+
+#define _FP_FRAC_GE_4(X,Y) \
+ (X##_f[3] > Y##_f[3] || \
+ (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \
+ (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \
+ (X##_f[1] == Y##_f[1] && X##_f[0] >= Y##_f[0]) \
+ )) \
+ )) \
+ )
+
+
+#define _FP_FRAC_CLZ_4(R,X) \
+ do { \
+ if (X##_f[3]) \
+ { \
+ __FP_CLZ(R,X##_f[3]); \
+ } \
+ else if (X##_f[2]) \
+ { \
+ __FP_CLZ(R,X##_f[2]); \
+ R += _FP_W_TYPE_SIZE; \
+ } \
+ else if (X##_f[1]) \
+ { \
+ __FP_CLZ(R,X##_f[1]); \
+ R += _FP_W_TYPE_SIZE*2; \
+ } \
+ else \
+ { \
+ __FP_CLZ(R,X##_f[0]); \
+ R += _FP_W_TYPE_SIZE*3; \
+ } \
+ } while(0)
+
+
+#define _FP_UNPACK_RAW_4(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs _flo; _flo.flt = (val); \
+ X##_f[0] = _flo.bits.frac0; \
+ X##_f[1] = _flo.bits.frac1; \
+ X##_f[2] = _flo.bits.frac2; \
+ X##_f[3] = _flo.bits.frac3; \
+ X##_e = _flo.bits.exp; \
+ X##_s = _flo.bits.sign; \
+ } while (0)
+
+#define _FP_UNPACK_RAW_4_P(fs, X, val) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ X##_f[0] = _flo->bits.frac0; \
+ X##_f[1] = _flo->bits.frac1; \
+ X##_f[2] = _flo->bits.frac2; \
+ X##_f[3] = _flo->bits.frac3; \
+ X##_e = _flo->bits.exp; \
+ X##_s = _flo->bits.sign; \
+ } while (0)
+
+#define _FP_PACK_RAW_4(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs _flo; \
+ _flo.bits.frac0 = X##_f[0]; \
+ _flo.bits.frac1 = X##_f[1]; \
+ _flo.bits.frac2 = X##_f[2]; \
+ _flo.bits.frac3 = X##_f[3]; \
+ _flo.bits.exp = X##_e; \
+ _flo.bits.sign = X##_s; \
+ (val) = _flo.flt; \
+ } while (0)
+
+#define _FP_PACK_RAW_4_P(fs, val, X) \
+ do { \
+ union _FP_UNION_##fs *_flo = \
+ (union _FP_UNION_##fs *)(val); \
+ \
+ _flo->bits.frac0 = X##_f[0]; \
+ _flo->bits.frac1 = X##_f[1]; \
+ _flo->bits.frac2 = X##_f[2]; \
+ _flo->bits.frac3 = X##_f[3]; \
+ _flo->bits.exp = X##_e; \
+ _flo->bits.sign = X##_s; \
+ } while (0)
+
+/*
+ * Multiplication algorithms:
+ */
+
+/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
+
+#define _FP_MUL_MEAT_4_wide(wfracbits, R, X, Y, doit) \
+ do { \
+ _FP_FRAC_DECL_8(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
+ _FP_FRAC_DECL_2(_d); _FP_FRAC_DECL_2(_e); _FP_FRAC_DECL_2(_f); \
+ \
+ doit(_FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0), X##_f[0], Y##_f[0]); \
+ doit(_b_f1, _b_f0, X##_f[0], Y##_f[1]); \
+ doit(_c_f1, _c_f0, X##_f[1], Y##_f[0]); \
+ doit(_d_f1, _d_f0, X##_f[1], Y##_f[1]); \
+ doit(_e_f1, _e_f0, X##_f[0], Y##_f[2]); \
+ doit(_f_f1, _f_f0, X##_f[2], Y##_f[0]); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \
+ _FP_FRAC_WORD_8(_z,1), 0,_b_f1,_b_f0, \
+ 0,0,_FP_FRAC_WORD_8(_z,1)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \
+ _FP_FRAC_WORD_8(_z,1), 0,_c_f1,_c_f0, \
+ _FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \
+ _FP_FRAC_WORD_8(_z,1)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \
+ _FP_FRAC_WORD_8(_z,2), 0,_d_f1,_d_f0, \
+ 0,_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \
+ _FP_FRAC_WORD_8(_z,2), 0,_e_f1,_e_f0, \
+ _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \
+ _FP_FRAC_WORD_8(_z,2)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \
+ _FP_FRAC_WORD_8(_z,2), 0,_f_f1,_f_f0, \
+ _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \
+ _FP_FRAC_WORD_8(_z,2)); \
+ doit(_b_f1, _b_f0, X##_f[0], Y##_f[3]); \
+ doit(_c_f1, _c_f0, X##_f[3], Y##_f[0]); \
+ doit(_d_f1, _d_f0, X##_f[1], Y##_f[2]); \
+ doit(_e_f1, _e_f0, X##_f[2], Y##_f[1]); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3), 0,_b_f1,_b_f0, \
+ 0,_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3), 0,_c_f1,_c_f0, \
+ _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3), 0,_d_f1,_d_f0, \
+ _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3), 0,_e_f1,_e_f0, \
+ _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \
+ _FP_FRAC_WORD_8(_z,3)); \
+ doit(_b_f1, _b_f0, X##_f[2], Y##_f[2]); \
+ doit(_c_f1, _c_f0, X##_f[1], Y##_f[3]); \
+ doit(_d_f1, _d_f0, X##_f[3], Y##_f[1]); \
+ doit(_e_f1, _e_f0, X##_f[2], Y##_f[3]); \
+ doit(_f_f1, _f_f0, X##_f[3], Y##_f[2]); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \
+ _FP_FRAC_WORD_8(_z,4), 0,_b_f1,_b_f0, \
+ 0,_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \
+ _FP_FRAC_WORD_8(_z,4), 0,_c_f1,_c_f0, \
+ _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \
+ _FP_FRAC_WORD_8(_z,4)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \
+ _FP_FRAC_WORD_8(_z,4), 0,_d_f1,_d_f0, \
+ _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \
+ _FP_FRAC_WORD_8(_z,4)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \
+ _FP_FRAC_WORD_8(_z,5), 0,_e_f1,_e_f0, \
+ 0,_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5)); \
+ __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \
+ _FP_FRAC_WORD_8(_z,5), 0,_f_f1,_f_f0, \
+ _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \
+ _FP_FRAC_WORD_8(_z,5)); \
+ doit(_b_f1, _b_f0, X##_f[3], Y##_f[3]); \
+ __FP_FRAC_ADD_2(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \
+ _b_f1,_b_f0, \
+ _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6)); \
+ \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \
+ __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \
+ _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \
+ } while (0)
+
+#define _FP_MUL_MEAT_4_gmp(wfracbits, R, X, Y) \
+ do { \
+ _FP_FRAC_DECL_8(_z); \
+ \
+ mpn_mul_n(_z_f, _x_f, _y_f, 4); \
+ \
+ /* Normalize since we know where the msb of the multiplicands \
+ were (bit B), we know that the msb of the of the product is \
+ at either 2B or 2B-1. */ \
+ _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \
+ __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \
+ _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \
+ } while (0)
+
+/*
+ * Helper utility for _FP_DIV_MEAT_4_udiv:
+ * pppp = m * nnn
+ */
+#define umul_ppppmnnn(p3,p2,p1,p0,m,n2,n1,n0) \
+ do { \
+ UWtype _t; \
+ umul_ppmm(p1,p0,m,n0); \
+ umul_ppmm(p2,_t,m,n1); \
+ __FP_FRAC_ADDI_2(p2,p1,_t); \
+ umul_ppmm(p3,_t,m,n2); \
+ __FP_FRAC_ADDI_2(p3,p2,_t); \
+ } while (0)
+
+/*
+ * Division algorithms:
+ */
+
+#define _FP_DIV_MEAT_4_udiv(fs, R, X, Y) \
+ do { \
+ int _i; \
+ _FP_FRAC_DECL_4(_n); _FP_FRAC_DECL_4(_m); \
+ _FP_FRAC_SET_4(_n, _FP_ZEROFRAC_4); \
+ if (_FP_FRAC_GT_4(X, Y)) \
+ { \
+ _n_f[3] = X##_f[0] << (_FP_W_TYPE_SIZE - 1); \
+ _FP_FRAC_SRL_4(X, 1); \
+ } \
+ else \
+ R##_e--; \
+ \
+ /* Normalize, i.e. make the most significant bit of the \
+ denominator set. */ \
+ _FP_FRAC_SLL_4(Y, _FP_WFRACXBITS_##fs); \
+ \
+ for (_i = 3; ; _i--) \
+ { \
+ if (X##_f[3] == Y##_f[3]) \
+ { \
+ /* This is a special case, not an optimization \
+ (X##_f[3]/Y##_f[3] would not fit into UWtype). \
+ As X## is guaranteed to be < Y, R##_f[_i] can be either \
+ (UWtype)-1 or (UWtype)-2. */ \
+ R##_f[_i] = -1; \
+ if (!_i) \
+ break; \
+ __FP_FRAC_SUB_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
+ Y##_f[2], Y##_f[1], Y##_f[0], 0, \
+ X##_f[2], X##_f[1], X##_f[0], _n_f[_i]); \
+ _FP_FRAC_SUB_4(X, Y, X); \
+ if (X##_f[3] > Y##_f[3]) \
+ { \
+ R##_f[_i] = -2; \
+ _FP_FRAC_ADD_4(X, Y, X); \
+ } \
+ } \
+ else \
+ { \
+ udiv_qrnnd(R##_f[_i], X##_f[3], X##_f[3], X##_f[2], Y##_f[3]); \
+ umul_ppppmnnn(_m_f[3], _m_f[2], _m_f[1], _m_f[0], \
+ R##_f[_i], Y##_f[2], Y##_f[1], Y##_f[0]); \
+ X##_f[2] = X##_f[1]; \
+ X##_f[1] = X##_f[0]; \
+ X##_f[0] = _n_f[_i]; \
+ if (_FP_FRAC_GT_4(_m, X)) \
+ { \
+ R##_f[_i]--; \
+ _FP_FRAC_ADD_4(X, Y, X); \
+ if (_FP_FRAC_GE_4(X, Y) && _FP_FRAC_GT_4(_m, X)) \
+ { \
+ R##_f[_i]--; \
+ _FP_FRAC_ADD_4(X, Y, X); \
+ } \
+ } \
+ _FP_FRAC_DEC_4(X, _m); \
+ if (!_i) \
+ { \
+ if (!_FP_FRAC_EQ_4(X, _m)) \
+ R##_f[0] |= _FP_WORK_STICKY; \
+ break; \
+ } \
+ } \
+ } \
+ } while (0)
+
+
+/*
+ * Square root algorithms:
+ * We have just one right now, maybe Newton approximation
+ * should be added for those machines where division is fast.
+ */
+
+#define _FP_SQRT_MEAT_4(R, S, T, X, q) \
+ do { \
+ while (q) \
+ { \
+ T##_f[3] = S##_f[3] + q; \
+ if (T##_f[3] <= X##_f[3]) \
+ { \
+ S##_f[3] = T##_f[3] + q; \
+ X##_f[3] -= T##_f[3]; \
+ R##_f[3] += q; \
+ } \
+ _FP_FRAC_SLL_4(X, 1); \
+ q >>= 1; \
+ } \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ while (q) \
+ { \
+ T##_f[2] = S##_f[2] + q; \
+ T##_f[3] = S##_f[3]; \
+ if (T##_f[3] < X##_f[3] || \
+ (T##_f[3] == X##_f[3] && T##_f[2] <= X##_f[2])) \
+ { \
+ S##_f[2] = T##_f[2] + q; \
+ S##_f[3] += (T##_f[2] > S##_f[2]); \
+ __FP_FRAC_DEC_2(X##_f[3], X##_f[2], \
+ T##_f[3], T##_f[2]); \
+ R##_f[2] += q; \
+ } \
+ _FP_FRAC_SLL_4(X, 1); \
+ q >>= 1; \
+ } \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ while (q) \
+ { \
+ T##_f[1] = S##_f[1] + q; \
+ T##_f[2] = S##_f[2]; \
+ T##_f[3] = S##_f[3]; \
+ if (T##_f[3] < X##_f[3] || \
+ (T##_f[3] == X##_f[3] && (T##_f[2] < X##_f[2] || \
+ (T##_f[2] == X##_f[2] && T##_f[1] <= X##_f[1])))) \
+ { \
+ S##_f[1] = T##_f[1] + q; \
+ S##_f[2] += (T##_f[1] > S##_f[1]); \
+ S##_f[3] += (T##_f[2] > S##_f[2]); \
+ __FP_FRAC_DEC_3(X##_f[3], X##_f[2], X##_f[1], \
+ T##_f[3], T##_f[2], T##_f[1]); \
+ R##_f[1] += q; \
+ } \
+ _FP_FRAC_SLL_4(X, 1); \
+ q >>= 1; \
+ } \
+ q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
+ while (q != _FP_WORK_ROUND) \
+ { \
+ T##_f[0] = S##_f[0] + q; \
+ T##_f[1] = S##_f[1]; \
+ T##_f[2] = S##_f[2]; \
+ T##_f[3] = S##_f[3]; \
+ if (_FP_FRAC_GE_4(X,T)) \
+ { \
+ S##_f[0] = T##_f[0] + q; \
+ S##_f[1] += (T##_f[0] > S##_f[0]); \
+ S##_f[2] += (T##_f[1] > S##_f[1]); \
+ S##_f[3] += (T##_f[2] > S##_f[2]); \
+ _FP_FRAC_DEC_4(X, T); \
+ R##_f[0] += q; \
+ } \
+ _FP_FRAC_SLL_4(X, 1); \
+ q >>= 1; \
+ } \
+ if (!_FP_FRAC_ZEROP_4(X)) \
+ { \
+ if (_FP_FRAC_GT_4(X,S)) \
+ R##_f[0] |= _FP_WORK_ROUND; \
+ R##_f[0] |= _FP_WORK_STICKY; \
+ } \
+ } while (0)
+
+
+/*
+ * Internals
+ */
+
+#define __FP_FRAC_SET_4(X,I3,I2,I1,I0) \
+ (X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0)
+
+#ifndef __FP_FRAC_ADD_3
+#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
+ do { \
+ _FP_W_TYPE _c1, _c2; \
+ r0 = x0 + y0; \
+ _c1 = r0 < x0; \
+ r1 = x1 + y1; \
+ _c2 = r1 < x1; \
+ r1 += _c1; \
+ _c2 |= r1 < _c1; \
+ r2 = x2 + y2 + _c2; \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_ADD_4
+#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ _FP_W_TYPE _c1, _c2, _c3; \
+ r0 = x0 + y0; \
+ _c1 = r0 < x0; \
+ r1 = x1 + y1; \
+ _c2 = r1 < x1; \
+ r1 += _c1; \
+ _c2 |= r1 < _c1; \
+ r2 = x2 + y2; \
+ _c3 = r2 < x2; \
+ r2 += _c2; \
+ _c3 |= r2 < _c2; \
+ r3 = x3 + y3 + _c3; \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_SUB_3
+#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
+ do { \
+ _FP_W_TYPE _c1, _c2; \
+ r0 = x0 - y0; \
+ _c1 = r0 > x0; \
+ r1 = x1 - y1; \
+ _c2 = r1 > x1; \
+ r1 -= _c1; \
+ _c2 |= _c1 && (y1 == x1); \
+ r2 = x2 - y2 - _c2; \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_SUB_4
+#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ _FP_W_TYPE _c1, _c2, _c3; \
+ r0 = x0 - y0; \
+ _c1 = r0 > x0; \
+ r1 = x1 - y1; \
+ _c2 = r1 > x1; \
+ r1 -= _c1; \
+ _c2 |= _c1 && (y1 == x1); \
+ r2 = x2 - y2; \
+ _c3 = r2 > x2; \
+ r2 -= _c2; \
+ _c3 |= _c2 && (y2 == x2); \
+ r3 = x3 - y3 - _c3; \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_DEC_3
+#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) \
+ do { \
+ UWtype _t0, _t1, _t2; \
+ _t0 = x0, _t1 = x1, _t2 = x2; \
+ __FP_FRAC_SUB_3 (x2, x1, x0, _t2, _t1, _t0, y2, y1, y0); \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_DEC_4
+#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ UWtype _t0, _t1, _t2, _t3; \
+ _t0 = x0, _t1 = x1, _t2 = x2, _t3 = x3; \
+ __FP_FRAC_SUB_4 (x3,x2,x1,x0,_t3,_t2,_t1,_t0, y3,y2,y1,y0); \
+ } while (0)
+#endif
+
+#ifndef __FP_FRAC_ADDI_4
+#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \
+ do { \
+ UWtype _t; \
+ _t = ((x0 += i) < i); \
+ x1 += _t; _t = (x1 < _t); \
+ x2 += _t; _t = (x2 < _t); \
+ x3 += _t; \
+ } while (0)
+#endif
+
+/* Convert FP values between word sizes. This appears to be more
+ * complicated than I'd have expected it to be, so these might be
+ * wrong... These macros are in any case somewhat bogus because they
+ * use information about what various FRAC_n variables look like
+ * internally [eg, that 2 word vars are X_f0 and x_f1]. But so do
+ * the ones in op-2.h and op-1.h.
+ */
+#define _FP_FRAC_COPY_1_4(D, S) (D##_f = S##_f[0])
+
+#define _FP_FRAC_COPY_2_4(D, S) \
+do { \
+ D##_f0 = S##_f[0]; \
+ D##_f1 = S##_f[1]; \
+} while (0)
+
+/* Assembly/disassembly for converting to/from integral types.
+ * No shifting or overflow handled here.
+ */
+/* Put the FP value X into r, which is an integer of size rsize. */
+#define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \
+ do { \
+ if (rsize <= _FP_W_TYPE_SIZE) \
+ r = X##_f[0]; \
+ else if (rsize <= 2*_FP_W_TYPE_SIZE) \
+ { \
+ r = X##_f[1]; \
+ r <<= _FP_W_TYPE_SIZE; \
+ r += X##_f[0]; \
+ } \
+ else \
+ { \
+ /* I'm feeling lazy so we deal with int == 3words (implausible)*/ \
+ /* and int == 4words as a single case. */ \
+ r = X##_f[3]; \
+ r <<= _FP_W_TYPE_SIZE; \
+ r += X##_f[2]; \
+ r <<= _FP_W_TYPE_SIZE; \
+ r += X##_f[1]; \
+ r <<= _FP_W_TYPE_SIZE; \
+ r += X##_f[0]; \
+ } \
+ } while (0)
+
+/* "No disassemble Number Five!" */
+/* move an integer of size rsize into X's fractional part. We rely on
+ * the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid
+ * having to mask the values we store into it.
+ */
+#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \
+ do { \
+ X##_f[0] = r; \
+ X##_f[1] = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
+ X##_f[2] = (rsize <= 2*_FP_W_TYPE_SIZE ? 0 : r >> 2*_FP_W_TYPE_SIZE); \
+ X##_f[3] = (rsize <= 3*_FP_W_TYPE_SIZE ? 0 : r >> 3*_FP_W_TYPE_SIZE); \
+ } while (0);
+
+#define _FP_FRAC_COPY_4_1(D, S) \
+do { \
+ D##_f[0] = S##_f; \
+ D##_f[1] = D##_f[2] = D##_f[3] = 0; \
+} while (0)
+
+#define _FP_FRAC_COPY_4_2(D, S) \
+do { \
+ D##_f[0] = S##_f0; \
+ D##_f[1] = S##_f1; \
+ D##_f[2] = D##_f[3] = 0; \
+} while (0)
+
+#define _FP_FRAC_COPY_4_4(D,S) _FP_FRAC_COPY_4(D,S)
--- /dev/null
+/* Software floating-point emulation.
+ Basic eight-word fraction declaration and manipulation.
+ 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) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+/* We need just a few things from here for op-4, if we ever need some
+ other macros, they can be added. */
+#define _FP_FRAC_DECL_8(X) _FP_W_TYPE X##_f[8]
+#define _FP_FRAC_HIGH_8(X) (X##_f[7])
+#define _FP_FRAC_LOW_8(X) (X##_f[0])
+#define _FP_FRAC_WORD_8(X,w) (X##_f[w])
+
+#define _FP_FRAC_SLL_8(X,N) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _up = (N) % _FP_W_TYPE_SIZE; \
+ _down = _FP_W_TYPE_SIZE - _up; \
+ if (!_up) \
+ for (_i = 7; _i >= _skip; --_i) \
+ X##_f[_i] = X##_f[_i-_skip]; \
+ else \
+ { \
+ for (_i = 7; _i > _skip; --_i) \
+ X##_f[_i] = X##_f[_i-_skip] << _up \
+ | X##_f[_i-_skip-1] >> _down; \
+ X##_f[_i--] = X##_f[0] << _up; \
+ } \
+ for (; _i >= 0; --_i) \
+ X##_f[_i] = 0; \
+ } while (0)
+
+#define _FP_FRAC_SRL_8(X,N) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _down = (N) % _FP_W_TYPE_SIZE; \
+ _up = _FP_W_TYPE_SIZE - _down; \
+ if (!_down) \
+ for (_i = 0; _i <= 7-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip]; \
+ else \
+ { \
+ for (_i = 0; _i < 7-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip] >> _down \
+ | X##_f[_i+_skip+1] << _up; \
+ X##_f[_i++] = X##_f[7] >> _down; \
+ } \
+ for (; _i < 8; ++_i) \
+ X##_f[_i] = 0; \
+ } while (0)
+
+
+/* Right shift with sticky-lsb.
+ * What this actually means is that we do a standard right-shift,
+ * but that if any of the bits that fall off the right hand side
+ * were one then we always set the LSbit.
+ */
+#define _FP_FRAC_SRS_8(X,N,size) \
+ do { \
+ _FP_I_TYPE _up, _down, _skip, _i; \
+ _FP_W_TYPE _s; \
+ _skip = (N) / _FP_W_TYPE_SIZE; \
+ _down = (N) % _FP_W_TYPE_SIZE; \
+ _up = _FP_W_TYPE_SIZE - _down; \
+ for (_s = _i = 0; _i < _skip; ++_i) \
+ _s |= X##_f[_i]; \
+ if (!_down) \
+ for (_i = 0; _i <= 7-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip]; \
+ else \
+ { \
+ _s |= X##_f[_i] << _up; \
+ for (_i = 0; _i < 7-_skip; ++_i) \
+ X##_f[_i] = X##_f[_i+_skip] >> _down \
+ | X##_f[_i+_skip+1] << _up; \
+ X##_f[_i++] = X##_f[7] >> _down; \
+ } \
+ for (; _i < 8; ++_i) \
+ X##_f[_i] = 0; \
+ /* don't fix the LSB until the very end when we're sure f[0] is stable */ \
+ X##_f[0] |= (_s != 0); \
+ } while (0)
+
--- /dev/null
+/* Software floating-point emulation. Common operations.
+ Copyright (C) 1997,1998,1999,2006,2007 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#define _FP_DECL(wc, X) \
+ _FP_I_TYPE X##_c __attribute__((unused)), X##_s, X##_e; \
+ _FP_FRAC_DECL_##wc(X)
+
+/*
+ * Finish truely unpacking a native fp value by classifying the kind
+ * of fp value and normalizing both the exponent and the fraction.
+ */
+
+#define _FP_UNPACK_CANONICAL(fs, wc, X) \
+do { \
+ switch (X##_e) \
+ { \
+ default: \
+ _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_IMPLBIT_##fs; \
+ _FP_FRAC_SLL_##wc(X, _FP_WORKBITS); \
+ X##_e -= _FP_EXPBIAS_##fs; \
+ X##_c = FP_CLS_NORMAL; \
+ break; \
+ \
+ case 0: \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ X##_c = FP_CLS_ZERO; \
+ else \
+ { \
+ /* a denormalized number */ \
+ _FP_I_TYPE _shift; \
+ _FP_FRAC_CLZ_##wc(_shift, X); \
+ _shift -= _FP_FRACXBITS_##fs; \
+ _FP_FRAC_SLL_##wc(X, (_shift+_FP_WORKBITS)); \
+ X##_e -= _FP_EXPBIAS_##fs - 1 + _shift; \
+ X##_c = FP_CLS_NORMAL; \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ } \
+ break; \
+ \
+ case _FP_EXPMAX_##fs: \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ X##_c = FP_CLS_INF; \
+ else \
+ { \
+ X##_c = FP_CLS_NAN; \
+ /* Check for signaling NaN */ \
+ if (!(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ } \
+ break; \
+ } \
+} while (0)
+
+/* Finish unpacking an fp value in semi-raw mode: the mantissa is
+ shifted by _FP_WORKBITS but the implicit MSB is not inserted and
+ other classification is not done. */
+#define _FP_UNPACK_SEMIRAW(fs, wc, X) _FP_FRAC_SLL_##wc(X, _FP_WORKBITS)
+
+/* A semi-raw value has overflowed to infinity. Adjust the mantissa
+ and exponent appropriately. */
+#define _FP_OVERFLOW_SEMIRAW(fs, wc, X) \
+do { \
+ if (FP_ROUNDMODE == FP_RND_NEAREST \
+ || (FP_ROUNDMODE == FP_RND_PINF && !X##_s) \
+ || (FP_ROUNDMODE == FP_RND_MINF && X##_s)) \
+ { \
+ X##_e = _FP_EXPMAX_##fs; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ } \
+ else \
+ { \
+ X##_e = _FP_EXPMAX_##fs - 1; \
+ _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc); \
+ } \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ FP_SET_EXCEPTION(FP_EX_OVERFLOW); \
+} while (0)
+
+/* Check for a semi-raw value being a signaling NaN and raise the
+ invalid exception if so. */
+#define _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X) \
+do { \
+ if (X##_e == _FP_EXPMAX_##fs \
+ && !_FP_FRAC_ZEROP_##wc(X) \
+ && !(_FP_FRAC_HIGH_##fs(X) & _FP_QNANBIT_SH_##fs)) \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+} while (0)
+
+/* Choose a NaN result from an operation on two semi-raw NaN
+ values. */
+#define _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP) \
+do { \
+ /* _FP_CHOOSENAN expects raw values, so shift as required. */ \
+ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \
+ _FP_FRAC_SRL_##wc(Y, _FP_WORKBITS); \
+ _FP_CHOOSENAN(fs, wc, R, X, Y, OP); \
+ _FP_FRAC_SLL_##wc(R, _FP_WORKBITS); \
+} while (0)
+
+/* Test whether a biased exponent is normal (not zero or maximum). */
+#define _FP_EXP_NORMAL(fs, wc, X) (((X##_e + 1) & _FP_EXPMAX_##fs) > 1)
+
+/* Prepare to pack an fp value in semi-raw mode: the mantissa is
+ rounded and shifted right, with the rounding possibly increasing
+ the exponent (including changing a finite value to infinity). */
+#define _FP_PACK_SEMIRAW(fs, wc, X) \
+do { \
+ _FP_ROUND(wc, X); \
+ if (_FP_FRAC_HIGH_##fs(X) \
+ & (_FP_OVERFLOW_##fs >> 1)) \
+ { \
+ _FP_FRAC_HIGH_##fs(X) &= ~(_FP_OVERFLOW_##fs >> 1); \
+ X##_e++; \
+ if (X##_e == _FP_EXPMAX_##fs) \
+ _FP_OVERFLOW_SEMIRAW(fs, wc, X); \
+ } \
+ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \
+ if (!_FP_EXP_NORMAL(fs, wc, X) && !_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ if (X##_e == 0) \
+ FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \
+ else \
+ { \
+ if (!_FP_KEEPNANFRACP) \
+ { \
+ _FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \
+ X##_s = _FP_NANSIGN_##fs; \
+ } \
+ else \
+ _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \
+ } \
+ } \
+} while (0)
+
+/*
+ * Before packing the bits back into the native fp result, take care
+ * of such mundane things as rounding and overflow. Also, for some
+ * kinds of fp values, the original parts may not have been fully
+ * extracted -- but that is ok, we can regenerate them now.
+ */
+
+#define _FP_PACK_CANONICAL(fs, wc, X) \
+do { \
+ switch (X##_c) \
+ { \
+ case FP_CLS_NORMAL: \
+ X##_e += _FP_EXPBIAS_##fs; \
+ if (X##_e > 0) \
+ { \
+ _FP_ROUND(wc, X); \
+ if (_FP_FRAC_OVERP_##wc(fs, X)) \
+ { \
+ _FP_FRAC_CLEAR_OVERP_##wc(fs, X); \
+ X##_e++; \
+ } \
+ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \
+ if (X##_e >= _FP_EXPMAX_##fs) \
+ { \
+ /* overflow */ \
+ switch (FP_ROUNDMODE) \
+ { \
+ case FP_RND_NEAREST: \
+ X##_c = FP_CLS_INF; \
+ break; \
+ case FP_RND_PINF: \
+ if (!X##_s) X##_c = FP_CLS_INF; \
+ break; \
+ case FP_RND_MINF: \
+ if (X##_s) X##_c = FP_CLS_INF; \
+ break; \
+ } \
+ if (X##_c == FP_CLS_INF) \
+ { \
+ /* Overflow to infinity */ \
+ X##_e = _FP_EXPMAX_##fs; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ } \
+ else \
+ { \
+ /* Overflow to maximum normal */ \
+ X##_e = _FP_EXPMAX_##fs - 1; \
+ _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc); \
+ } \
+ FP_SET_EXCEPTION(FP_EX_OVERFLOW); \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ } \
+ } \
+ else \
+ { \
+ /* we've got a denormalized number */ \
+ X##_e = -X##_e + 1; \
+ if (X##_e <= _FP_WFRACBITS_##fs) \
+ { \
+ _FP_FRAC_SRS_##wc(X, X##_e, _FP_WFRACBITS_##fs); \
+ _FP_ROUND(wc, X); \
+ if (_FP_FRAC_HIGH_##fs(X) \
+ & (_FP_OVERFLOW_##fs >> 1)) \
+ { \
+ X##_e = 1; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ } \
+ else \
+ { \
+ X##_e = 0; \
+ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \
+ FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \
+ } \
+ } \
+ else \
+ { \
+ /* underflow to zero */ \
+ X##_e = 0; \
+ if (!_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \
+ _FP_ROUND(wc, X); \
+ _FP_FRAC_LOW_##wc(X) >>= (_FP_WORKBITS); \
+ } \
+ FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \
+ } \
+ } \
+ break; \
+ \
+ case FP_CLS_ZERO: \
+ X##_e = 0; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ break; \
+ \
+ case FP_CLS_INF: \
+ X##_e = _FP_EXPMAX_##fs; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ break; \
+ \
+ case FP_CLS_NAN: \
+ X##_e = _FP_EXPMAX_##fs; \
+ if (!_FP_KEEPNANFRACP) \
+ { \
+ _FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \
+ X##_s = _FP_NANSIGN_##fs; \
+ } \
+ else \
+ _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \
+ break; \
+ } \
+} while (0)
+
+/* This one accepts raw argument and not cooked, returns
+ * 1 if X is a signaling NaN.
+ */
+#define _FP_ISSIGNAN(fs, wc, X) \
+({ \
+ int __ret = 0; \
+ if (X##_e == _FP_EXPMAX_##fs) \
+ { \
+ if (!_FP_FRAC_ZEROP_##wc(X) \
+ && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \
+ __ret = 1; \
+ } \
+ __ret; \
+})
+
+
+
+
+
+/* Addition on semi-raw values. */
+#define _FP_ADD_INTERNAL(fs, wc, R, X, Y, OP) \
+do { \
+ if (X##_s == Y##_s) \
+ { \
+ /* Addition. */ \
+ R##_s = X##_s; \
+ int ediff = X##_e - Y##_e; \
+ if (ediff > 0) \
+ { \
+ R##_e = X##_e; \
+ if (Y##_e == 0) \
+ { \
+ /* Y is zero or denormalized. */ \
+ if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto add_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ ediff--; \
+ if (ediff == 0) \
+ { \
+ _FP_FRAC_ADD_##wc(R, X, Y); \
+ goto add3; \
+ } \
+ if (X##_e == _FP_EXPMAX_##fs) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto add_done; \
+ } \
+ goto add1; \
+ } \
+ } \
+ else if (X##_e == _FP_EXPMAX_##fs) \
+ { \
+ /* X is NaN or Inf, Y is normal. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto add_done; \
+ } \
+ \
+ /* Insert implicit MSB of Y. */ \
+ _FP_FRAC_HIGH_##fs(Y) |= _FP_IMPLBIT_SH_##fs; \
+ \
+ add1: \
+ /* Shift the mantissa of Y to the right EDIFF steps; \
+ remember to account later for the implicit MSB of X. */ \
+ if (ediff <= _FP_WFRACBITS_##fs) \
+ _FP_FRAC_SRS_##wc(Y, ediff, _FP_WFRACBITS_##fs); \
+ else if (!_FP_FRAC_ZEROP_##wc(Y)) \
+ _FP_FRAC_SET_##wc(Y, _FP_MINFRAC_##wc); \
+ _FP_FRAC_ADD_##wc(R, X, Y); \
+ } \
+ else if (ediff < 0) \
+ { \
+ ediff = -ediff; \
+ R##_e = Y##_e; \
+ if (X##_e == 0) \
+ { \
+ /* X is zero or denormalized. */ \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto add_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ ediff--; \
+ if (ediff == 0) \
+ { \
+ _FP_FRAC_ADD_##wc(R, Y, X); \
+ goto add3; \
+ } \
+ if (Y##_e == _FP_EXPMAX_##fs) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto add_done; \
+ } \
+ goto add2; \
+ } \
+ } \
+ else if (Y##_e == _FP_EXPMAX_##fs) \
+ { \
+ /* Y is NaN or Inf, X is normal. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto add_done; \
+ } \
+ \
+ /* Insert implicit MSB of X. */ \
+ _FP_FRAC_HIGH_##fs(X) |= _FP_IMPLBIT_SH_##fs; \
+ \
+ add2: \
+ /* Shift the mantissa of X to the right EDIFF steps; \
+ remember to account later for the implicit MSB of Y. */ \
+ if (ediff <= _FP_WFRACBITS_##fs) \
+ _FP_FRAC_SRS_##wc(X, ediff, _FP_WFRACBITS_##fs); \
+ else if (!_FP_FRAC_ZEROP_##wc(X)) \
+ _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \
+ _FP_FRAC_ADD_##wc(R, Y, X); \
+ } \
+ else \
+ { \
+ /* ediff == 0. */ \
+ if (!_FP_EXP_NORMAL(fs, wc, X)) \
+ { \
+ if (X##_e == 0) \
+ { \
+ /* X and Y are zero or denormalized. */ \
+ R##_e = 0; \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ if (!_FP_FRAC_ZEROP_##wc(Y)) \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto add_done; \
+ } \
+ else if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto add_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_ADD_##wc(R, X, Y); \
+ if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \
+ { \
+ /* Normalized result. */ \
+ _FP_FRAC_HIGH_##fs(R) \
+ &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \
+ R##_e = 1; \
+ } \
+ goto add_done; \
+ } \
+ } \
+ else \
+ { \
+ /* X and Y are NaN or Inf. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ R##_e = _FP_EXPMAX_##fs; \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ else if (_FP_FRAC_ZEROP_##wc(Y)) \
+ _FP_FRAC_COPY_##wc(R, X); \
+ else \
+ _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP); \
+ goto add_done; \
+ } \
+ } \
+ /* The exponents of X and Y, both normal, are equal. The \
+ implicit MSBs will always add to increase the \
+ exponent. */ \
+ _FP_FRAC_ADD_##wc(R, X, Y); \
+ R##_e = X##_e + 1; \
+ _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \
+ if (R##_e == _FP_EXPMAX_##fs) \
+ /* Overflow to infinity (depending on rounding mode). */ \
+ _FP_OVERFLOW_SEMIRAW(fs, wc, R); \
+ goto add_done; \
+ } \
+ add3: \
+ if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \
+ { \
+ /* Overflow. */ \
+ _FP_FRAC_HIGH_##fs(R) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \
+ R##_e++; \
+ _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \
+ if (R##_e == _FP_EXPMAX_##fs) \
+ /* Overflow to infinity (depending on rounding mode). */ \
+ _FP_OVERFLOW_SEMIRAW(fs, wc, R); \
+ } \
+ add_done: ; \
+ } \
+ else \
+ { \
+ /* Subtraction. */ \
+ int ediff = X##_e - Y##_e; \
+ if (ediff > 0) \
+ { \
+ R##_e = X##_e; \
+ R##_s = X##_s; \
+ if (Y##_e == 0) \
+ { \
+ /* Y is zero or denormalized. */ \
+ if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto sub_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ ediff--; \
+ if (ediff == 0) \
+ { \
+ _FP_FRAC_SUB_##wc(R, X, Y); \
+ goto sub3; \
+ } \
+ if (X##_e == _FP_EXPMAX_##fs) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto sub_done; \
+ } \
+ goto sub1; \
+ } \
+ } \
+ else if (X##_e == _FP_EXPMAX_##fs) \
+ { \
+ /* X is NaN or Inf, Y is normal. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ goto sub_done; \
+ } \
+ \
+ /* Insert implicit MSB of Y. */ \
+ _FP_FRAC_HIGH_##fs(Y) |= _FP_IMPLBIT_SH_##fs; \
+ \
+ sub1: \
+ /* Shift the mantissa of Y to the right EDIFF steps; \
+ remember to account later for the implicit MSB of X. */ \
+ if (ediff <= _FP_WFRACBITS_##fs) \
+ _FP_FRAC_SRS_##wc(Y, ediff, _FP_WFRACBITS_##fs); \
+ else if (!_FP_FRAC_ZEROP_##wc(Y)) \
+ _FP_FRAC_SET_##wc(Y, _FP_MINFRAC_##wc); \
+ _FP_FRAC_SUB_##wc(R, X, Y); \
+ } \
+ else if (ediff < 0) \
+ { \
+ ediff = -ediff; \
+ R##_e = Y##_e; \
+ R##_s = Y##_s; \
+ if (X##_e == 0) \
+ { \
+ /* X is zero or denormalized. */ \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto sub_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ ediff--; \
+ if (ediff == 0) \
+ { \
+ _FP_FRAC_SUB_##wc(R, Y, X); \
+ goto sub3; \
+ } \
+ if (Y##_e == _FP_EXPMAX_##fs) \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto sub_done; \
+ } \
+ goto sub2; \
+ } \
+ } \
+ else if (Y##_e == _FP_EXPMAX_##fs) \
+ { \
+ /* Y is NaN or Inf, X is normal. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ goto sub_done; \
+ } \
+ \
+ /* Insert implicit MSB of X. */ \
+ _FP_FRAC_HIGH_##fs(X) |= _FP_IMPLBIT_SH_##fs; \
+ \
+ sub2: \
+ /* Shift the mantissa of X to the right EDIFF steps; \
+ remember to account later for the implicit MSB of Y. */ \
+ if (ediff <= _FP_WFRACBITS_##fs) \
+ _FP_FRAC_SRS_##wc(X, ediff, _FP_WFRACBITS_##fs); \
+ else if (!_FP_FRAC_ZEROP_##wc(X)) \
+ _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \
+ _FP_FRAC_SUB_##wc(R, Y, X); \
+ } \
+ else \
+ { \
+ /* ediff == 0. */ \
+ if (!_FP_EXP_NORMAL(fs, wc, X)) \
+ { \
+ if (X##_e == 0) \
+ { \
+ /* X and Y are zero or denormalized. */ \
+ R##_e = 0; \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ if (_FP_FRAC_ZEROP_##wc(Y)) \
+ R##_s = (FP_ROUNDMODE == FP_RND_MINF); \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ R##_s = Y##_s; \
+ } \
+ goto sub_done; \
+ } \
+ else if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_COPY_##wc(R, X); \
+ R##_s = X##_s; \
+ goto sub_done; \
+ } \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_SUB_##wc(R, X, Y); \
+ R##_s = X##_s; \
+ if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \
+ { \
+ /* |X| < |Y|, negate result. */ \
+ _FP_FRAC_SUB_##wc(R, Y, X); \
+ R##_s = Y##_s; \
+ } \
+ else if (_FP_FRAC_ZEROP_##wc(R)) \
+ R##_s = (FP_ROUNDMODE == FP_RND_MINF); \
+ goto sub_done; \
+ } \
+ } \
+ else \
+ { \
+ /* X and Y are NaN or Inf, of opposite signs. */ \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, X); \
+ _FP_CHECK_SIGNAN_SEMIRAW(fs, wc, Y); \
+ R##_e = _FP_EXPMAX_##fs; \
+ if (_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ /* Inf - Inf. */ \
+ R##_s = _FP_NANSIGN_##fs; \
+ _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \
+ _FP_FRAC_SLL_##wc(R, _FP_WORKBITS); \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ } \
+ else \
+ { \
+ /* Inf - NaN. */ \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ } \
+ } \
+ else \
+ { \
+ if (_FP_FRAC_ZEROP_##wc(Y)) \
+ { \
+ /* NaN - Inf. */ \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R, X); \
+ } \
+ else \
+ { \
+ /* NaN - NaN. */ \
+ _FP_CHOOSENAN_SEMIRAW(fs, wc, R, X, Y, OP); \
+ } \
+ } \
+ goto sub_done; \
+ } \
+ } \
+ /* The exponents of X and Y, both normal, are equal. The \
+ implicit MSBs cancel. */ \
+ R##_e = X##_e; \
+ _FP_FRAC_SUB_##wc(R, X, Y); \
+ R##_s = X##_s; \
+ if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \
+ { \
+ /* |X| < |Y|, negate result. */ \
+ _FP_FRAC_SUB_##wc(R, Y, X); \
+ R##_s = Y##_s; \
+ } \
+ else if (_FP_FRAC_ZEROP_##wc(R)) \
+ { \
+ R##_e = 0; \
+ R##_s = (FP_ROUNDMODE == FP_RND_MINF); \
+ goto sub_done; \
+ } \
+ goto norm; \
+ } \
+ sub3: \
+ if (_FP_FRAC_HIGH_##fs(R) & _FP_IMPLBIT_SH_##fs) \
+ { \
+ int diff; \
+ /* Carry into most significant bit of larger one of X and Y, \
+ canceling it; renormalize. */ \
+ _FP_FRAC_HIGH_##fs(R) &= _FP_IMPLBIT_SH_##fs - 1; \
+ norm: \
+ _FP_FRAC_CLZ_##wc(diff, R); \
+ diff -= _FP_WFRACXBITS_##fs; \
+ _FP_FRAC_SLL_##wc(R, diff); \
+ if (R##_e <= diff) \
+ { \
+ /* R is denormalized. */ \
+ diff = diff - R##_e + 1; \
+ _FP_FRAC_SRS_##wc(R, diff, _FP_WFRACBITS_##fs); \
+ R##_e = 0; \
+ } \
+ else \
+ { \
+ R##_e -= diff; \
+ _FP_FRAC_HIGH_##fs(R) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \
+ } \
+ } \
+ sub_done: ; \
+ } \
+} while (0)
+
+#define _FP_ADD(fs, wc, R, X, Y) _FP_ADD_INTERNAL(fs, wc, R, X, Y, '+')
+#define _FP_SUB(fs, wc, R, X, Y) \
+ do { \
+ if (!(Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) Y##_s ^= 1; \
+ _FP_ADD_INTERNAL(fs, wc, R, X, Y, '-'); \
+ } while (0)
+
+
+/*
+ * Main negation routine. FIXME -- when we care about setting exception
+ * bits reliably, this will not do. We should examine all of the fp classes.
+ */
+
+#define _FP_NEG(fs, wc, R, X) \
+ do { \
+ _FP_FRAC_COPY_##wc(R, X); \
+ R##_c = X##_c; \
+ R##_e = X##_e; \
+ R##_s = 1 ^ X##_s; \
+ } while (0)
+
+
+/*
+ * Main multiplication routine. The input values should be cooked.
+ */
+
+#define _FP_MUL(fs, wc, R, X, Y) \
+do { \
+ R##_s = X##_s ^ Y##_s; \
+ switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \
+ { \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \
+ R##_c = FP_CLS_NORMAL; \
+ R##_e = X##_e + Y##_e + 1; \
+ \
+ _FP_MUL_MEAT_##fs(R,X,Y); \
+ \
+ if (_FP_FRAC_OVERP_##wc(fs, R)) \
+ _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \
+ else \
+ R##_e--; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \
+ _FP_CHOOSENAN(fs, wc, R, X, Y, '*'); \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \
+ R##_s = X##_s; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \
+ _FP_FRAC_COPY_##wc(R, X); \
+ R##_c = X##_c; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \
+ R##_s = Y##_s; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ R##_c = Y##_c; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \
+ R##_s = _FP_NANSIGN_##fs; \
+ R##_c = FP_CLS_NAN; \
+ _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ break; \
+ \
+ default: \
+ abort(); \
+ } \
+} while (0)
+
+
+/*
+ * Main division routine. The input values should be cooked.
+ */
+
+#define _FP_DIV(fs, wc, R, X, Y) \
+do { \
+ R##_s = X##_s ^ Y##_s; \
+ switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \
+ { \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \
+ R##_c = FP_CLS_NORMAL; \
+ R##_e = X##_e - Y##_e; \
+ \
+ _FP_DIV_MEAT_##fs(R,X,Y); \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \
+ _FP_CHOOSENAN(fs, wc, R, X, Y, '/'); \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R, X); \
+ R##_c = X##_c; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R, Y); \
+ R##_c = Y##_c; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \
+ R##_c = FP_CLS_ZERO; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \
+ FP_SET_EXCEPTION(FP_EX_DIVZERO); \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \
+ R##_c = FP_CLS_INF; \
+ break; \
+ \
+ case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \
+ case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \
+ R##_s = _FP_NANSIGN_##fs; \
+ R##_c = FP_CLS_NAN; \
+ _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ break; \
+ \
+ default: \
+ abort(); \
+ } \
+} while (0)
+
+
+/*
+ * Main differential comparison routine. The inputs should be raw not
+ * cooked. The return is -1,0,1 for normal values, 2 otherwise.
+ */
+
+#define _FP_CMP(fs, wc, ret, X, Y, un) \
+ do { \
+ /* NANs are unordered */ \
+ if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \
+ || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \
+ { \
+ ret = un; \
+ } \
+ else \
+ { \
+ int __is_zero_x; \
+ int __is_zero_y; \
+ \
+ __is_zero_x = (!X##_e && _FP_FRAC_ZEROP_##wc(X)) ? 1 : 0; \
+ __is_zero_y = (!Y##_e && _FP_FRAC_ZEROP_##wc(Y)) ? 1 : 0; \
+ \
+ if (__is_zero_x && __is_zero_y) \
+ ret = 0; \
+ else if (__is_zero_x) \
+ ret = Y##_s ? 1 : -1; \
+ else if (__is_zero_y) \
+ ret = X##_s ? -1 : 1; \
+ else if (X##_s != Y##_s) \
+ ret = X##_s ? -1 : 1; \
+ else if (X##_e > Y##_e) \
+ ret = X##_s ? -1 : 1; \
+ else if (X##_e < Y##_e) \
+ ret = X##_s ? 1 : -1; \
+ else if (_FP_FRAC_GT_##wc(X, Y)) \
+ ret = X##_s ? -1 : 1; \
+ else if (_FP_FRAC_GT_##wc(Y, X)) \
+ ret = X##_s ? 1 : -1; \
+ else \
+ ret = 0; \
+ } \
+ } while (0)
+
+
+/* Simplification for strict equality. */
+
+#define _FP_CMP_EQ(fs, wc, ret, X, Y) \
+ do { \
+ /* NANs are unordered */ \
+ if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \
+ || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \
+ { \
+ ret = 1; \
+ } \
+ else \
+ { \
+ ret = !(X##_e == Y##_e \
+ && _FP_FRAC_EQ_##wc(X, Y) \
+ && (X##_s == Y##_s || (!X##_e && _FP_FRAC_ZEROP_##wc(X)))); \
+ } \
+ } while (0)
+
+/* Version to test unordered. */
+
+#define _FP_CMP_UNORD(fs, wc, ret, X, Y) \
+ do { \
+ ret = ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \
+ || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))); \
+ } while (0)
+
+/*
+ * Main square root routine. The input value should be cooked.
+ */
+
+#define _FP_SQRT(fs, wc, R, X) \
+do { \
+ _FP_FRAC_DECL_##wc(T); _FP_FRAC_DECL_##wc(S); \
+ _FP_W_TYPE q; \
+ switch (X##_c) \
+ { \
+ case FP_CLS_NAN: \
+ _FP_FRAC_COPY_##wc(R, X); \
+ R##_s = X##_s; \
+ R##_c = FP_CLS_NAN; \
+ break; \
+ case FP_CLS_INF: \
+ if (X##_s) \
+ { \
+ R##_s = _FP_NANSIGN_##fs; \
+ R##_c = FP_CLS_NAN; /* NAN */ \
+ _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ } \
+ else \
+ { \
+ R##_s = 0; \
+ R##_c = FP_CLS_INF; /* sqrt(+inf) = +inf */ \
+ } \
+ break; \
+ case FP_CLS_ZERO: \
+ R##_s = X##_s; \
+ R##_c = FP_CLS_ZERO; /* sqrt(+-0) = +-0 */ \
+ break; \
+ case FP_CLS_NORMAL: \
+ R##_s = 0; \
+ if (X##_s) \
+ { \
+ R##_c = FP_CLS_NAN; /* sNAN */ \
+ R##_s = _FP_NANSIGN_##fs; \
+ _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ break; \
+ } \
+ R##_c = FP_CLS_NORMAL; \
+ if (X##_e & 1) \
+ _FP_FRAC_SLL_##wc(X, 1); \
+ R##_e = X##_e >> 1; \
+ _FP_FRAC_SET_##wc(S, _FP_ZEROFRAC_##wc); \
+ _FP_FRAC_SET_##wc(R, _FP_ZEROFRAC_##wc); \
+ q = _FP_OVERFLOW_##fs >> 1; \
+ _FP_SQRT_MEAT_##wc(R, S, T, X, q); \
+ } \
+ } while (0)
+
+/*
+ * Convert from FP to integer. Input is raw.
+ */
+
+/* RSIGNED can have following values:
+ * 0: the number is required to be 0..(2^rsize)-1, if not, NV is set plus
+ * the result is either 0 or (2^rsize)-1 depending on the sign in such
+ * case.
+ * 1: the number is required to be -(2^(rsize-1))..(2^(rsize-1))-1, if not,
+ * NV is set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1
+ * depending on the sign in such case.
+ * -1: the number is required to be -(2^(rsize-1))..(2^rsize)-1, if not, NV is
+ * set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1
+ * depending on the sign in such case.
+ */
+#define _FP_TO_INT(fs, wc, r, X, rsize, rsigned) \
+do { \
+ if (X##_e < _FP_EXPBIAS_##fs) \
+ { \
+ r = 0; \
+ if (X##_e == 0) \
+ { \
+ if (!_FP_FRAC_ZEROP_##wc(X)) \
+ { \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ } \
+ } \
+ else \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ } \
+ else if (X##_e >= _FP_EXPBIAS_##fs + rsize - (rsigned > 0 || X##_s) \
+ || (!rsigned && X##_s)) \
+ { \
+ /* Overflow or converting to the most negative integer. */ \
+ if (rsigned) \
+ { \
+ r = 1; \
+ r <<= rsize - 1; \
+ r -= 1 - X##_s; \
+ } else { \
+ r = 0; \
+ if (X##_s) \
+ r = ~r; \
+ } \
+ \
+ if (rsigned && X##_s && X##_e == _FP_EXPBIAS_##fs + rsize - 1) \
+ { \
+ /* Possibly converting to most negative integer; check the \
+ mantissa. */ \
+ int inexact = 0; \
+ (void)((_FP_FRACBITS_##fs > rsize) \
+ ? ({ _FP_FRAC_SRST_##wc(X, inexact, \
+ _FP_FRACBITS_##fs - rsize, \
+ _FP_FRACBITS_##fs); 0; }) \
+ : 0); \
+ if (!_FP_FRAC_ZEROP_##wc(X)) \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ else if (inexact) \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ } \
+ else \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ } \
+ else \
+ { \
+ _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_IMPLBIT_##fs; \
+ if (X##_e >= _FP_EXPBIAS_##fs + _FP_FRACBITS_##fs - 1) \
+ { \
+ _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \
+ r <<= X##_e - _FP_EXPBIAS_##fs - _FP_FRACBITS_##fs + 1; \
+ } \
+ else \
+ { \
+ int inexact; \
+ _FP_FRAC_SRST_##wc(X, inexact, \
+ (_FP_FRACBITS_##fs + _FP_EXPBIAS_##fs - 1 \
+ - X##_e), \
+ _FP_FRACBITS_##fs); \
+ if (inexact) \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \
+ } \
+ if (rsigned && X##_s) \
+ r = -r; \
+ } \
+} while (0)
+
+/* Convert integer to fp. Output is raw. RTYPE is unsigned even if
+ input is signed. */
+#define _FP_FROM_INT(fs, wc, X, r, rsize, rtype) \
+ do { \
+ if (r) \
+ { \
+ rtype ur_; \
+ \
+ if ((X##_s = (r < 0))) \
+ r = -(rtype)r; \
+ \
+ ur_ = (rtype) r; \
+ (void)((rsize <= _FP_W_TYPE_SIZE) \
+ ? ({ \
+ int lz_; \
+ __FP_CLZ(lz_, (_FP_W_TYPE)ur_); \
+ X##_e = _FP_EXPBIAS_##fs + _FP_W_TYPE_SIZE - 1 - lz_; \
+ }) \
+ : ((rsize <= 2 * _FP_W_TYPE_SIZE) \
+ ? ({ \
+ int lz_; \
+ __FP_CLZ_2(lz_, (_FP_W_TYPE)(ur_ >> _FP_W_TYPE_SIZE), \
+ (_FP_W_TYPE)ur_); \
+ X##_e = (_FP_EXPBIAS_##fs + 2 * _FP_W_TYPE_SIZE - 1 \
+ - lz_); \
+ }) \
+ : (abort(), 0))); \
+ \
+ if (rsize - 1 + _FP_EXPBIAS_##fs >= _FP_EXPMAX_##fs \
+ && X##_e >= _FP_EXPMAX_##fs) \
+ { \
+ /* Exponent too big; overflow to infinity. (May also \
+ happen after rounding below.) */ \
+ _FP_OVERFLOW_SEMIRAW(fs, wc, X); \
+ goto pack_semiraw; \
+ } \
+ \
+ if (rsize <= _FP_FRACBITS_##fs \
+ || X##_e < _FP_EXPBIAS_##fs + _FP_FRACBITS_##fs) \
+ { \
+ /* Exactly representable; shift left. */ \
+ _FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \
+ _FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \
+ + _FP_FRACBITS_##fs - 1 - X##_e)); \
+ } \
+ else \
+ { \
+ /* More bits in integer than in floating type; need to \
+ round. */ \
+ if (_FP_EXPBIAS_##fs + _FP_WFRACBITS_##fs - 1 < X##_e) \
+ ur_ = ((ur_ >> (X##_e - _FP_EXPBIAS_##fs \
+ - _FP_WFRACBITS_##fs + 1)) \
+ | ((ur_ << (rsize - (X##_e - _FP_EXPBIAS_##fs \
+ - _FP_WFRACBITS_##fs + 1))) \
+ != 0)); \
+ _FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \
+ if ((_FP_EXPBIAS_##fs + _FP_WFRACBITS_##fs - 1 - X##_e) > 0) \
+ _FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \
+ + _FP_WFRACBITS_##fs - 1 - X##_e)); \
+ _FP_FRAC_HIGH_##fs(X) &= ~(_FP_W_TYPE)_FP_IMPLBIT_SH_##fs; \
+ pack_semiraw: \
+ _FP_PACK_SEMIRAW(fs, wc, X); \
+ } \
+ } \
+ else \
+ { \
+ X##_s = 0; \
+ X##_e = 0; \
+ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \
+ } \
+ } while (0)
+
+
+/* Extend from a narrower floating-point format to a wider one. Input
+ and output are raw. */
+#define FP_EXTEND(dfs,sfs,dwc,swc,D,S) \
+do { \
+ if (_FP_FRACBITS_##dfs < _FP_FRACBITS_##sfs \
+ || (_FP_EXPMAX_##dfs - _FP_EXPBIAS_##dfs \
+ < _FP_EXPMAX_##sfs - _FP_EXPBIAS_##sfs) \
+ || (_FP_EXPBIAS_##dfs < _FP_EXPBIAS_##sfs + _FP_FRACBITS_##sfs - 1 \
+ && _FP_EXPBIAS_##dfs != _FP_EXPBIAS_##sfs)) \
+ abort(); \
+ D##_s = S##_s; \
+ _FP_FRAC_COPY_##dwc##_##swc(D, S); \
+ if (_FP_EXP_NORMAL(sfs, swc, S)) \
+ { \
+ D##_e = S##_e + _FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs; \
+ _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs - _FP_FRACBITS_##sfs)); \
+ } \
+ else \
+ { \
+ if (S##_e == 0) \
+ { \
+ if (_FP_FRAC_ZEROP_##swc(S)) \
+ D##_e = 0; \
+ else if (_FP_EXPBIAS_##dfs \
+ < _FP_EXPBIAS_##sfs + _FP_FRACBITS_##sfs - 1) \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs \
+ - _FP_FRACBITS_##sfs)); \
+ D##_e = 0; \
+ } \
+ else \
+ { \
+ int _lz; \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ _FP_FRAC_CLZ_##swc(_lz, S); \
+ _FP_FRAC_SLL_##dwc(D, \
+ _lz + _FP_FRACBITS_##dfs \
+ - _FP_FRACTBITS_##sfs); \
+ D##_e = (_FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs + 1 \
+ + _FP_FRACXBITS_##sfs - _lz); \
+ } \
+ } \
+ else \
+ { \
+ D##_e = _FP_EXPMAX_##dfs; \
+ if (!_FP_FRAC_ZEROP_##swc(S)) \
+ { \
+ if (!(_FP_FRAC_HIGH_RAW_##sfs(S) & _FP_QNANBIT_##sfs)) \
+ FP_SET_EXCEPTION(FP_EX_INVALID); \
+ _FP_FRAC_SLL_##dwc(D, (_FP_FRACBITS_##dfs \
+ - _FP_FRACBITS_##sfs)); \
+ } \
+ } \
+ } \
+} while (0)
+
+/* Truncate from a wider floating-point format to a narrower one.
+ Input and output are semi-raw. */
+#define FP_TRUNC(dfs,sfs,dwc,swc,D,S) \
+do { \
+ if (_FP_FRACBITS_##sfs < _FP_FRACBITS_##dfs \
+ || (_FP_EXPBIAS_##sfs < _FP_EXPBIAS_##dfs + _FP_FRACBITS_##dfs - 1 \
+ && _FP_EXPBIAS_##sfs != _FP_EXPBIAS_##dfs)) \
+ abort(); \
+ D##_s = S##_s; \
+ if (_FP_EXP_NORMAL(sfs, swc, S)) \
+ { \
+ D##_e = S##_e + _FP_EXPBIAS_##dfs - _FP_EXPBIAS_##sfs; \
+ if (D##_e >= _FP_EXPMAX_##dfs) \
+ _FP_OVERFLOW_SEMIRAW(dfs, dwc, D); \
+ else \
+ { \
+ if (D##_e <= 0) \
+ { \
+ if (D##_e < 1 - _FP_FRACBITS_##dfs) \
+ { \
+ _FP_FRAC_SET_##swc(S, _FP_ZEROFRAC_##swc); \
+ _FP_FRAC_LOW_##swc(S) |= 1; \
+ } \
+ else \
+ { \
+ _FP_FRAC_HIGH_##sfs(S) |= _FP_IMPLBIT_SH_##sfs; \
+ _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \
+ - _FP_WFRACBITS_##dfs + 1 - D##_e), \
+ _FP_WFRACBITS_##sfs); \
+ } \
+ D##_e = 0; \
+ } \
+ else \
+ _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \
+ - _FP_WFRACBITS_##dfs), \
+ _FP_WFRACBITS_##sfs); \
+ _FP_FRAC_COPY_##dwc##_##swc(D, S); \
+ } \
+ } \
+ else \
+ { \
+ if (S##_e == 0) \
+ { \
+ D##_e = 0; \
+ if (_FP_FRAC_ZEROP_##swc(S)) \
+ _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \
+ else \
+ { \
+ FP_SET_EXCEPTION(FP_EX_DENORM); \
+ if (_FP_EXPBIAS_##sfs \
+ < _FP_EXPBIAS_##dfs + _FP_FRACBITS_##dfs - 1) \
+ { \
+ _FP_FRAC_SRS_##swc(S, (_FP_WFRACBITS_##sfs \
+ - _FP_WFRACBITS_##dfs), \
+ _FP_WFRACBITS_##sfs); \
+ _FP_FRAC_COPY_##dwc##_##swc(D, S); \
+ } \
+ else \
+ { \
+ _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \
+ _FP_FRAC_LOW_##dwc(D) |= 1; \
+ } \
+ } \
+ } \
+ else \
+ { \
+ D##_e = _FP_EXPMAX_##dfs; \
+ if (_FP_FRAC_ZEROP_##swc(S)) \
+ _FP_FRAC_SET_##dwc(D, _FP_ZEROFRAC_##dwc); \
+ else \
+ { \
+ _FP_CHECK_SIGNAN_SEMIRAW(sfs, swc, S); \
+ _FP_FRAC_SRL_##swc(S, (_FP_WFRACBITS_##sfs \
+ - _FP_WFRACBITS_##dfs)); \
+ _FP_FRAC_COPY_##dwc##_##swc(D, S); \
+ /* Semi-raw NaN must have all workbits cleared. */ \
+ _FP_FRAC_LOW_##dwc(D) \
+ &= ~(_FP_W_TYPE) ((1 << _FP_WORKBITS) - 1); \
+ _FP_FRAC_HIGH_##dfs(D) |= _FP_QNANBIT_SH_##dfs; \
+ } \
+ } \
+ } \
+} while (0)
+
+/*
+ * Helper primitives.
+ */
+
+/* Count leading zeros in a word. */
+
+#ifndef __FP_CLZ
+/* GCC 3.4 and later provide the builtins for us. */
+#define __FP_CLZ(r, x) \
+ do { \
+ if (sizeof (_FP_W_TYPE) == sizeof (unsigned int)) \
+ r = __builtin_clz (x); \
+ else if (sizeof (_FP_W_TYPE) == sizeof (unsigned long)) \
+ r = __builtin_clzl (x); \
+ else if (sizeof (_FP_W_TYPE) == sizeof (unsigned long long)) \
+ r = __builtin_clzll (x); \
+ else \
+ abort (); \
+ } while (0)
+#endif /* ndef __FP_CLZ */
+
+#define _FP_DIV_HELP_imm(q, r, n, d) \
+ do { \
+ q = n / d, r = n % d; \
+ } while (0)
+
+
+/* A restoring bit-by-bit division primitive. */
+
+#define _FP_DIV_MEAT_N_loop(fs, wc, R, X, Y) \
+ do { \
+ int count = _FP_WFRACBITS_##fs; \
+ _FP_FRAC_DECL_##wc (u); \
+ _FP_FRAC_DECL_##wc (v); \
+ _FP_FRAC_COPY_##wc (u, X); \
+ _FP_FRAC_COPY_##wc (v, Y); \
+ _FP_FRAC_SET_##wc (R, _FP_ZEROFRAC_##wc); \
+ /* Normalize U and V. */ \
+ _FP_FRAC_SLL_##wc (u, _FP_WFRACXBITS_##fs); \
+ _FP_FRAC_SLL_##wc (v, _FP_WFRACXBITS_##fs); \
+ /* First round. Since the operands are normalized, either the \
+ first or second bit will be set in the fraction. Produce a \
+ normalized result by checking which and adjusting the loop \
+ count and exponent accordingly. */ \
+ if (_FP_FRAC_GE_1 (u, v)) \
+ { \
+ _FP_FRAC_SUB_##wc (u, u, v); \
+ _FP_FRAC_LOW_##wc (R) |= 1; \
+ count--; \
+ } \
+ else \
+ R##_e--; \
+ /* Subsequent rounds. */ \
+ do { \
+ int msb = (_FP_WS_TYPE) _FP_FRAC_HIGH_##wc (u) < 0; \
+ _FP_FRAC_SLL_##wc (u, 1); \
+ _FP_FRAC_SLL_##wc (R, 1); \
+ if (msb || _FP_FRAC_GE_1 (u, v)) \
+ { \
+ _FP_FRAC_SUB_##wc (u, u, v); \
+ _FP_FRAC_LOW_##wc (R) |= 1; \
+ } \
+ } while (--count > 0); \
+ /* If there's anything left in U, the result is inexact. */ \
+ _FP_FRAC_LOW_##wc (R) |= !_FP_FRAC_ZEROP_##wc (u); \
+ } while (0)
+
+#define _FP_DIV_MEAT_1_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 1, R, X, Y)
+#define _FP_DIV_MEAT_2_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 2, R, X, Y)
+#define _FP_DIV_MEAT_4_loop(fs, R, X, Y) _FP_DIV_MEAT_N_loop (fs, 4, R, X, Y)
--- /dev/null
+/* Software floating-point emulation.
+ Return a + b
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_add(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_SEMIRAW_Q(A, a);
+ FP_UNPACK_SEMIRAW_Q(B, b);
+ FP_ADD_Q(C, A, B);
+ FP_PACK_SEMIRAW_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Compare a and b, return float condition code.
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_cmp(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, 3);
+ if (r == -1) r = 2;
+ if (r == 3 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B)))
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Compare a and b, return float condition code.
+ Signal exception (unless masked) if unordered.
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_cmpe(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, 3);
+ if (r == -1) r = 2;
+ if (r == 3)
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return a / b
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_div(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_Q(A, a);
+ FP_UNPACK_Q(B, b);
+ FP_DIV_Q(C, A, B);
+ FP_PACK_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (long double)(a)
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "double.h"
+#include "quad.h"
+
+long double _Q_dtoq(const double a)
+{
+ FP_DECL_EX;
+ FP_DECL_D(A);
+ FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_RAW_D(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+ FP_EXTEND(Q,D,4,2,C,A);
+#else
+ FP_EXTEND(Q,D,2,1,C,A);
+#endif
+ FP_PACK_RAW_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a == b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_feq(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_EQ_Q(r, A, B);
+ if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B)))
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return !r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a >= b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_fge(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, 3);
+ if (r == 3)
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return (r <= 0);
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a > b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_fgt(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, 3);
+ if (r == 3)
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return (r == -1);
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a <= b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_fle(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, -2);
+ if (r == -2)
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return (r >= 0);
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a < b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_flt(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_Q(r, B, A, 3);
+ if (r == 3)
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return (r == 1);
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return 1 if a != b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_fne(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B);
+ int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_UNPACK_RAW_Q(B, b);
+ FP_CMP_EQ_Q(r, A, B);
+ if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B)))
+ FP_SET_EXCEPTION(FP_EX_INVALID);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (long double)(a)
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_itoq(const int a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(C);
+ int b = a;
+ long double c;
+
+ FP_FROM_INT_Q(C, b, 32, unsigned int);
+ FP_PACK_RAW_Q(c, C);
+ FP_CLEAR_EXCEPTIONS;
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (long double)a
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_lltoq(const long long a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(C);
+ long double c;
+ long long b = a;
+
+ FP_FROM_INT_Q(C, b, 64, unsigned long long);
+ FP_PACK_RAW_Q(c, C);
+ FP_CLEAR_EXCEPTIONS;
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return a * b
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_mul(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_Q(A, a);
+ FP_UNPACK_Q(B, b);
+ FP_MUL_Q(C, A, B);
+ FP_PACK_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return !a
+ Copyright (C) 1997,1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_neg(const long double a)
+{
+ FP_DECL_EX;
+ long double c = a;
+
+#if (__BYTE_ORDER == __BIG_ENDIAN)
+ ((UWtype *)&c)[0] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
+#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 64)
+ ((UWtype *)&c)[1] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
+#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 32)
+ ((UWtype *)&c)[3] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
+#else
+ FP_DECL_Q(A); FP_DECL_Q(C);
+
+ FP_UNPACK_Q(A, a);
+ FP_NEG_Q(C, A);
+ FP_PACK_Q(c, C);
+#endif
+ FP_CLEAR_EXCEPTIONS;
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (double)a
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "double.h"
+#include "quad.h"
+
+double _Q_qtod(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ FP_DECL_D(R);
+ double r;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_SEMIRAW_Q(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+ FP_TRUNC(D,Q,2,4,R,A);
+#else
+ FP_TRUNC(D,Q,1,2,R,A);
+#endif
+ FP_PACK_SEMIRAW_D(r, R);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (int)a
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#define FP_ROUNDMODE FP_RND_ZERO
+#include "soft-fp.h"
+#include "quad.h"
+
+int _Q_qtoi(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ unsigned int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_TO_INT_Q(r, A, 32, 1);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (long long)a
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#define FP_ROUNDMODE FP_RND_ZERO
+#include "soft-fp.h"
+#include "quad.h"
+
+long long _Q_qtoll(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ unsigned long long r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_TO_INT_Q(r, A, 64, 1);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (float)a
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "single.h"
+#include "quad.h"
+
+float _Q_qtos(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ FP_DECL_S(R);
+ float r;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_SEMIRAW_Q(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+ FP_TRUNC(S,Q,1,4,R,A);
+#else
+ FP_TRUNC(S,Q,1,2,R,A);
+#endif
+ FP_PACK_SEMIRAW_S(r, R);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (unsigned int)a
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#define FP_ROUNDMODE FP_RND_ZERO
+#include "soft-fp.h"
+#include "quad.h"
+
+unsigned int _Q_qtou(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ unsigned int r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_TO_INT_Q(r, A, 32, -1);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (unsigned long long)a
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#define FP_ROUNDMODE FP_RND_ZERO
+#include "soft-fp.h"
+#include "quad.h"
+
+unsigned long long _Q_qtoull(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ unsigned long long r;
+
+ FP_UNPACK_RAW_Q(A, a);
+ FP_TO_INT_Q(r, A, 64, -1);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return sqrtl(a)
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_sqrt(const long double a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_Q(A, a);
+ FP_SQRT_Q(C, A);
+ FP_PACK_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
+strong_alias (_Q_sqrt, __ieee754_sqrtl);
--- /dev/null
+/* Software floating-point emulation.
+ c = (long double)(a)
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "single.h"
+#include "quad.h"
+
+long double _Q_stoq(const float a)
+{
+ FP_DECL_EX;
+ FP_DECL_S(A);
+ FP_DECL_Q(C);
+ long double c;
+
+ FP_UNPACK_RAW_S(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+ FP_EXTEND(Q,S,4,1,C,A);
+#else
+ FP_EXTEND(Q,S,2,1,C,A);
+#endif
+ FP_PACK_RAW_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ c = a - b
+ Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_sub(const long double a, const long double b)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+ long double c;
+
+ FP_INIT_ROUNDMODE;
+ FP_UNPACK_SEMIRAW_Q(A, a);
+ FP_UNPACK_SEMIRAW_Q(B, b);
+ FP_SUB_Q(C, A, B);
+ FP_PACK_SEMIRAW_Q(c, C);
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Return (long double)(a)
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_ulltoq(const unsigned long long a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(C);
+ long double c;
+ unsigned long long b = a;
+
+ FP_FROM_INT_Q(C, b, 64, unsigned long long);
+ FP_PACK_RAW_Q(c, C);
+ FP_CLEAR_EXCEPTIONS;
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Helper routine for _Q_* routines.
+ Simulate exceptions using double arithmetics.
+ Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+
+unsigned long long ___Q_numbers [] = {
+0x0000000000000000ULL, /* Zero */
+0x0010100000000000ULL, /* Very tiny number */
+0x0010000000000000ULL, /* Minimum normalized number */
+0x7fef000000000000ULL, /* A huge double number */
+};
+
+double ___Q_simulate_exceptions(int exceptions)
+{
+ double d, *p = (double *)___Q_numbers;
+ if (exceptions & FP_EX_INVALID)
+ d = p[0]/p[0];
+ if (exceptions & FP_EX_OVERFLOW)
+ {
+ d = p[3] + p[3];
+ exceptions &= ~FP_EX_INEXACT;
+ }
+ if (exceptions & FP_EX_UNDERFLOW)
+ {
+ if (exceptions & FP_EX_INEXACT)
+ {
+ d = p[2] * p[2];
+ exceptions &= ~FP_EX_INEXACT;
+ }
+ else
+ d = p[1] - p[2];
+ }
+ if (exceptions & FP_EX_DIVZERO)
+ d = 1.0/p[0];
+ if (exceptions & FP_EX_INEXACT)
+ d = p[3] - p[2];
+ return d;
+}
--- /dev/null
+/* Software floating-point emulation.
+ c = (long double)(a)
+ Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson (rth@cygnus.com) and
+ Jakub Jelinek (jj@ultra.linux.cz).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double _Q_utoq(const unsigned int a)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(C);
+ long double c;
+ unsigned int b = a;
+
+ FP_FROM_INT_Q(C, b, 32, unsigned int);
+ FP_PACK_RAW_Q(c, C);
+ FP_CLEAR_EXCEPTIONS;
+ FP_HANDLE_EXCEPTIONS;
+ return c;
+}
--- /dev/null
+/* Software floating-point emulation.
+ Definitions for IEEE Quad Precision.
+ Copyright (C) 1997,1998,1999,2006,2007 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#if _FP_W_TYPE_SIZE < 32
+#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)
+#else
+#define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE)
+#endif
+
+#define _FP_FRACBITS_Q 113
+#define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q)
+#define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q)
+#define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q)
+#define _FP_EXPBITS_Q 15
+#define _FP_EXPBIAS_Q 16383
+#define _FP_EXPMAX_Q 32767
+
+#define _FP_QNANBIT_Q \
+ ((_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)
+#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))
+
+typedef float TFtype __attribute__((mode(TF)));
+
+#if _FP_W_TYPE_SIZE < 64
+
+union _FP_UNION_Q
+{
+ TFtype 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));
+};
+
+
+#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_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_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(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)
+
+#else /* not _FP_W_TYPE_SIZE < 64 */
+union _FP_UNION_Q
+{
+ TFtype flt /* __attribute__((mode(TF))) */ ;
+ struct {
+ _FP_W_TYPE a, b;
+ } longs;
+ struct {
+#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_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_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_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(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)
+
+#endif /* not _FP_W_TYPE_SIZE < 64 */
--- /dev/null
+/* Machine-dependent software floating-point definitions.
+ Sparc userland (_Q_*) version.
+ Copyright (C) 1997,1998,1999, 2002, 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) and
+ David S. Miller (davem@redhat.com).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ 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. */
+
+#include <fpu_control.h>
+#include <stdlib.h>
+
+#define _FP_W_TYPE_SIZE 32
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S 0
+#define _FP_NANSIGN_D 0
+#define _FP_NANSIGN_Q 0
+
+#define _FP_KEEPNANFRACP 1
+
+/* If one NaN is signaling and the other is not,
+ * we choose that one, otherwise we choose X.
+ */
+/* For _Qp_* and _Q_*, this should prefer X, for
+ * CPU instruction emulation this should prefer Y.
+ * (see SPAMv9 B.2.2 section).
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
+ && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ else \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+/* Some assembly to speed things up. */
+#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
+ __asm__ ("addcc %r7,%8,%2\n\
+ addxcc %r5,%6,%1\n\
+ addx %r3,%4,%0" \
+ : "=r" ((USItype)(r2)), \
+ "=&r" ((USItype)(r1)), \
+ "=&r" ((USItype)(r0)) \
+ : "%rJ" ((USItype)(x2)), \
+ "rI" ((USItype)(y2)), \
+ "%rJ" ((USItype)(x1)), \
+ "rI" ((USItype)(y1)), \
+ "%rJ" ((USItype)(x0)), \
+ "rI" ((USItype)(y0)) \
+ : "cc")
+
+#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
+ __asm__ ("subcc %r7,%8,%2\n\
+ subxcc %r5,%6,%1\n\
+ subx %r3,%4,%0" \
+ : "=r" ((USItype)(r2)), \
+ "=&r" ((USItype)(r1)), \
+ "=&r" ((USItype)(r0)) \
+ : "%rJ" ((USItype)(x2)), \
+ "rI" ((USItype)(y2)), \
+ "%rJ" ((USItype)(x1)), \
+ "rI" ((USItype)(y1)), \
+ "%rJ" ((USItype)(x0)), \
+ "rI" ((USItype)(y0)) \
+ : "cc")
+
+#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ /* We need to fool gcc, as we need to pass more than 10 \
+ input/outputs. */ \
+ register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \
+ __asm__ __volatile__ ("\
+ addcc %r8,%9,%1\n\
+ addxcc %r6,%7,%0\n\
+ addxcc %r4,%5,%%g2\n\
+ addx %r2,%3,%%g1" \
+ : "=&r" ((USItype)(r1)), \
+ "=&r" ((USItype)(r0)) \
+ : "%rJ" ((USItype)(x3)), \
+ "rI" ((USItype)(y3)), \
+ "%rJ" ((USItype)(x2)), \
+ "rI" ((USItype)(y2)), \
+ "%rJ" ((USItype)(x1)), \
+ "rI" ((USItype)(y1)), \
+ "%rJ" ((USItype)(x0)), \
+ "rI" ((USItype)(y0)) \
+ : "cc", "g1", "g2"); \
+ __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \
+ r3 = _t1; r2 = _t2; \
+ } while (0)
+
+#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ /* We need to fool gcc, as we need to pass more than 10 \
+ input/outputs. */ \
+ register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \
+ __asm__ __volatile__ ("\
+ subcc %r8,%9,%1\n\
+ subxcc %r6,%7,%0\n\
+ subxcc %r4,%5,%%g2\n\
+ subx %r2,%3,%%g1" \
+ : "=&r" ((USItype)(r1)), \
+ "=&r" ((USItype)(r0)) \
+ : "%rJ" ((USItype)(x3)), \
+ "rI" ((USItype)(y3)), \
+ "%rJ" ((USItype)(x2)), \
+ "rI" ((USItype)(y2)), \
+ "%rJ" ((USItype)(x1)), \
+ "rI" ((USItype)(y1)), \
+ "%rJ" ((USItype)(x0)), \
+ "rI" ((USItype)(y0)) \
+ : "cc", "g1", "g2"); \
+ __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \
+ r3 = _t1; r2 = _t2; \
+ } while (0)
+
+#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0)
+
+#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) __FP_FRAC_SUB_4(x3,x2,x1,x0,x3,x2,x1,x0,y3,y2,y1,y0)
+
+#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \
+ __asm__ ("addcc %3,%4,%3\n\
+ addxcc %2,%%g0,%2\n\
+ addxcc %1,%%g0,%1\n\
+ addx %0,%%g0,%0" \
+ : "=&r" ((USItype)(x3)), \
+ "=&r" ((USItype)(x2)), \
+ "=&r" ((USItype)(x1)), \
+ "=&r" ((USItype)(x0)) \
+ : "rI" ((USItype)(i)), \
+ "0" ((USItype)(x3)), \
+ "1" ((USItype)(x2)), \
+ "2" ((USItype)(x1)), \
+ "3" ((USItype)(x0)) \
+ : "cc")
+
+/* Obtain the current rounding mode. */
+#ifndef FP_ROUNDMODE
+#define FP_ROUNDMODE ((_fcw >> 30) & 0x3)
+#endif
+
+/* Exception flags. */
+#define FP_EX_INVALID (1 << 4)
+#define FP_EX_OVERFLOW (1 << 3)
+#define FP_EX_UNDERFLOW (1 << 2)
+#define FP_EX_DIVZERO (1 << 1)
+#define FP_EX_INEXACT (1 << 0)
+
+#define _FP_DECL_EX fpu_control_t _fcw
+
+#define FP_INIT_ROUNDMODE \
+do { \
+ _FPU_GETCW(_fcw); \
+} while (0)
+
+/* Simulate exceptions using double arithmetics. */
+extern double ___Q_simulate_exceptions(int exc);
+
+#define FP_HANDLE_EXCEPTIONS \
+do { \
+ if (!_fex) \
+ { \
+ /* This is the common case, so we do it inline. \
+ * We need to clear cexc bits if any. \
+ */ \
+ extern unsigned long long ___Q_numbers[]; \
+ __asm__ __volatile__("\
+ ldd [%0], %%f30\n\
+ faddd %%f30, %%f30, %%f30\
+ " : : "r" (___Q_numbers) : "f30"); \
+ } \
+ else \
+ ___Q_simulate_exceptions (_fex); \
+} while (0)
--- /dev/null
+/* Software floating-point emulation.
+ Definitions for IEEE Single Precision.
+ 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#if _FP_W_TYPE_SIZE < 32
+#error "Here's a nickel kid. Go buy yourself a real computer."
+#endif
+
+#define _FP_FRACTBITS_S _FP_W_TYPE_SIZE
+
+#define _FP_FRACBITS_S 24
+#define _FP_FRACXBITS_S (_FP_FRACTBITS_S - _FP_FRACBITS_S)
+#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
+#define _FP_WFRACXBITS_S (_FP_FRACTBITS_S - _FP_WFRACBITS_S)
+#define _FP_EXPBITS_S 8
+#define _FP_EXPBIAS_S 127
+#define _FP_EXPMAX_S 255
+#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2))
+#define _FP_QNANBIT_SH_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2+_FP_WORKBITS))
+#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
+#define _FP_IMPLBIT_SH_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1+_FP_WORKBITS))
+#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
+
+/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
+ chosen by the target machine. */
+
+typedef float SFtype __attribute__((mode(SF)));
+
+union _FP_UNION_S
+{
+ SFtype flt;
+ struct {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_S;
+ unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
+#else
+ unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
+ unsigned exp : _FP_EXPBITS_S;
+ unsigned sign : 1;
+#endif
+ } bits __attribute__((packed));
+};
+
+#define FP_DECL_S(X) _FP_DECL(1,X)
+#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val)
+#define FP_UNPACK_RAW_SP(X,val) _FP_UNPACK_RAW_1_P(S,X,val)
+#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X)
+#define FP_PACK_RAW_SP(val,X) \
+ do { \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(S,val,X); \
+ } while (0)
+
+#define FP_UNPACK_S(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1(S,X,val); \
+ _FP_UNPACK_CANONICAL(S,1,X); \
+ } while (0)
+
+#define FP_UNPACK_SP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1_P(S,X,val); \
+ _FP_UNPACK_CANONICAL(S,1,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_S(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1(S,X,val); \
+ _FP_UNPACK_SEMIRAW(S,1,X); \
+ } while (0)
+
+#define FP_UNPACK_SEMIRAW_SP(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1_P(S,X,val); \
+ _FP_UNPACK_SEMIRAW(S,1,X); \
+ } while (0)
+
+#define FP_PACK_S(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(S,1,X); \
+ _FP_PACK_RAW_1(S,val,X); \
+ } while (0)
+
+#define FP_PACK_SP(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(S,1,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(S,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_S(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(S,1,X); \
+ _FP_PACK_RAW_1(S,val,X); \
+ } while (0)
+
+#define FP_PACK_SEMIRAW_SP(val,X) \
+ do { \
+ _FP_PACK_SEMIRAW(S,1,X); \
+ if (!FP_INHIBIT_RESULTS) \
+ _FP_PACK_RAW_1_P(S,val,X); \
+ } while (0)
+
+#define FP_ISSIGNAN_S(X) _FP_ISSIGNAN(S,1,X)
+#define FP_NEG_S(R,X) _FP_NEG(S,1,R,X)
+#define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y)
+#define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y)
+#define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y)
+#define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y)
+#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X)
+#define _FP_SQRT_MEAT_S(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)
+
+#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un)
+#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y)
+#define FP_CMP_UNORD_S(r,X,Y) _FP_CMP_UNORD(S,1,r,X,Y)
+
+#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg)
+#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt)
+
+#define _FP_FRAC_HIGH_S(X) _FP_FRAC_HIGH_1(X)
+#define _FP_FRAC_HIGH_RAW_S(X) _FP_FRAC_HIGH_1(X)
--- /dev/null
+/* Software floating-point emulation.
+ Copyright (C) 1997,1998,1999,2000,2002,2003,2005,2006,2007
+ 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),
+ David S. Miller (davem@redhat.com) and
+ Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ 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, 51 Franklin Street, Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#ifndef SOFT_FP_H
+#define SOFT_FP_H
+
+#include "sfp-machine.h"
+
+/* Allow sfp-machine to have its own byte order definitions. */
+#ifndef __BYTE_ORDER
+#ifdef _LIBC
+#include <endian.h>
+#else
+#error "endianness not defined by sfp-machine.h"
+#endif
+#endif
+
+#define _FP_WORKBITS 3
+#define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3)
+#define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2)
+#define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1)
+#define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0)
+
+#ifndef FP_RND_NEAREST
+# define FP_RND_NEAREST 0
+# define FP_RND_ZERO 1
+# define FP_RND_PINF 2
+# define FP_RND_MINF 3
+#endif
+#ifndef FP_ROUNDMODE
+# define FP_ROUNDMODE FP_RND_NEAREST
+#endif
+
+/* By default don't care about exceptions. */
+#ifndef FP_EX_INVALID
+#define FP_EX_INVALID 0
+#endif
+#ifndef FP_EX_OVERFLOW
+#define FP_EX_OVERFLOW 0
+#endif
+#ifndef FP_EX_UNDERFLOW
+#define FP_EX_UNDERFLOW 0
+#endif
+#ifndef FP_EX_DIVZERO
+#define FP_EX_DIVZERO 0
+#endif
+#ifndef FP_EX_INEXACT
+#define FP_EX_INEXACT 0
+#endif
+#ifndef FP_EX_DENORM
+#define FP_EX_DENORM 0
+#endif
+
+#ifdef _FP_DECL_EX
+#define FP_DECL_EX \
+ int _fex = 0; \
+ _FP_DECL_EX
+#else
+#define FP_DECL_EX int _fex = 0
+#endif
+
+#ifndef FP_INIT_ROUNDMODE
+#define FP_INIT_ROUNDMODE do {} while (0)
+#endif
+
+#ifndef FP_HANDLE_EXCEPTIONS
+#define FP_HANDLE_EXCEPTIONS do {} while (0)
+#endif
+
+#ifndef FP_INHIBIT_RESULTS
+/* By default we write the results always.
+ * sfp-machine may override this and e.g.
+ * check if some exceptions are unmasked
+ * and inhibit it in such a case.
+ */
+#define FP_INHIBIT_RESULTS 0
+#endif
+
+#define FP_SET_EXCEPTION(ex) \
+ _fex |= (ex)
+
+#define FP_UNSET_EXCEPTION(ex) \
+ _fex &= ~(ex)
+
+#define FP_CLEAR_EXCEPTIONS \
+ _fex = 0
+
+#define _FP_ROUND_NEAREST(wc, X) \
+do { \
+ if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \
+ _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
+} while (0)
+
+#define _FP_ROUND_ZERO(wc, X) (void)0
+
+#define _FP_ROUND_PINF(wc, X) \
+do { \
+ if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
+ _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
+} while (0)
+
+#define _FP_ROUND_MINF(wc, X) \
+do { \
+ if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
+ _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
+} while (0)
+
+#define _FP_ROUND(wc, X) \
+do { \
+ if (_FP_FRAC_LOW_##wc(X) & 7) \
+ FP_SET_EXCEPTION(FP_EX_INEXACT); \
+ switch (FP_ROUNDMODE) \
+ { \
+ case FP_RND_NEAREST: \
+ _FP_ROUND_NEAREST(wc,X); \
+ break; \
+ case FP_RND_ZERO: \
+ _FP_ROUND_ZERO(wc,X); \
+ break; \
+ case FP_RND_PINF: \
+ _FP_ROUND_PINF(wc,X); \
+ break; \
+ case FP_RND_MINF: \
+ _FP_ROUND_MINF(wc,X); \
+ break; \
+ } \
+} while (0)
+
+#define FP_CLS_NORMAL 0
+#define FP_CLS_ZERO 1
+#define FP_CLS_INF 2
+#define FP_CLS_NAN 3
+
+#define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y))
+
+#include "op-1.h"
+#include "op-2.h"
+#include "op-4.h"
+#include "op-8.h"
+#include "op-common.h"
+
+/* Sigh. Silly things longlong.h needs. */
+#define UWtype _FP_W_TYPE
+#define W_TYPE_SIZE _FP_W_TYPE_SIZE
+
+typedef int QItype __attribute__((mode(QI)));
+typedef int SItype __attribute__((mode(SI)));
+typedef int DItype __attribute__((mode(DI)));
+typedef unsigned int UQItype __attribute__((mode(QI)));
+typedef unsigned int USItype __attribute__((mode(SI)));
+typedef unsigned int UDItype __attribute__((mode(DI)));
+#if _FP_W_TYPE_SIZE == 32
+typedef unsigned int UHWtype __attribute__((mode(HI)));
+#elif _FP_W_TYPE_SIZE == 64
+typedef USItype UHWtype;
+#endif
+
+#ifndef CMPtype
+#define CMPtype int
+#endif
+
+#define SI_BITS (__CHAR_BIT__ * (int)sizeof(SItype))
+#define DI_BITS (__CHAR_BIT__ * (int)sizeof(DItype))
+
+#ifndef umul_ppmm
+#include "longlong.h"
+#endif
+
+#ifdef _LIBC
+#include <stdlib.h>
+#else
+extern void abort (void);
+#endif
+
+#endif
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