/* Machine-dependent software floating-point definitions.   Alpha userland IEEE 128-bit version.   Copyright (C) 2004 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 <fenv_libc.h>#define _FP_W_TYPE_SIZE		64#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_imm(_FP_WFRACBITS_S,R,X,Y)#define _FP_MUL_MEAT_D(R,X,Y)					\  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)#define _FP_MUL_MEAT_Q(R,X,Y)					\  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_2_udiv(Q,R,X,Y)#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1)#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1#define _FP_NANSIGN_S		0#define _FP_NANSIGN_D		0#define _FP_NANSIGN_Q		0#define _FP_KEEPNANFRACP 1/* Alpha Architecture Handbook, 4.7.10.4 sez that we should prefer any   type of NaN in Fb, then Fa.  */#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \  do {                                                          \    R##_s = Y##_s;                                              \    _FP_FRAC_COPY_##wc(R,X);                                    \    R##_c = FP_CLS_NAN;                                         \  } while (0)/* Rounding mode settings.  */#define FP_RND_NEAREST		FE_TONEAREST#define FP_RND_ZERO		FE_TOWARDZERO#define FP_RND_PINF		FE_UPWARD#define FP_RND_MINF		FE_DOWNWARD/* Obtain the current rounding mode.  It's given as an argument to   all the Ots functions, with 4 meaning "dynamic".  */#define FP_ROUNDMODE		_round/* Exception flags. */#define FP_EX_INVALID		FE_INVALID#define FP_EX_OVERFLOW		FE_OVERFLOW#define FP_EX_UNDERFLOW		FE_UNDERFLOW#define FP_EX_DIVZERO		FE_DIVBYZERO#define FP_EX_INEXACT		FE_INEXACT#define FP_INIT_ROUNDMODE					\do {								\  if (__builtin_expect (_round == 4, 0))			\    {								\      unsigned long t;						\      __asm__ __volatile__("excb; mf_fpcr %0" : "=f"(t));	\      _round = (t >> FPCR_ROUND_SHIFT) & 3;			\    }								\} while (0)#define FP_HANDLE_EXCEPTIONS					\do {								\  if (__builtin_expect (_fex, 0))				\    {								\      unsigned long t = __ieee_get_fp_control ();		\      __ieee_set_fp_control (t | _fex);				\    }								\} while (0)