/* Machine-dependent software floating-point definitions.   Sparc64 kernel version.   Copyright (C) 1997,1998,1999 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 Library General Public License as   published by the Free Software Foundation; either version 2 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   Library General Public License for more details.   You should have received a copy of the GNU Library General Public   License along with the GNU C Library; see the file COPYING.LIB.  If   not, write to the Free Software Foundation, Inc.,   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */#ifndef _SFP_MACHINE_H#define _SFP_MACHINE_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_3mul(_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/* 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(Y) & _FP_QNANBIT_##fs)		\	&& !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs))	\      {								\	R##_s = X##_s;						\	_FP_FRAC_COPY_##wc(R,X);				\      }								\    else							\      {								\	R##_s = Y##_s;						\	_FP_FRAC_COPY_##wc(R,Y);				\      }								\    R##_c = FP_CLS_NAN;						\  } while (0)/* Obtain the current rounding mode. */#ifndef FP_ROUNDMODE#define FP_ROUNDMODE	((current->thread.xfsr[0] >> 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_HANDLE_EXCEPTIONS return _fex#define FP_INHIBIT_RESULTS ((current->thread.xfsr[0] >> 23) & _fex)#endif