/* Machine-dependent software floating-point definitions.
Alpha 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 ( jakub @ redhat . com ) 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(_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(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
#define _FP_NANFRAC_D _FP_QNANBIT_D
#define _FP_NANFRAC_Q _FP_QNANBIT_Q
#define _FP_NANSIGN_S 1
#define _FP_NANSIGN_D 1
#define _FP_NANSIGN_Q 1
#define _FP_KEEPNANFRACP 1
/* Alpha Architecture Handbook, 4.7.10.4 sais 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 )
/* Obtain the current rounding mode. */
#define FP_ROUNDMODE mode
#define FP_RND_NEAREST (FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT)
#define FP_RND_ZERO (FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT)
#define FP_RND_PINF (FPCR_DYN_PLUS >> FPCR_DYN_SHIFT)
#define FP_RND_MINF (FPCR_DYN_MINUS >> FPCR_DYN_SHIFT)
/* Exception flags. */
#define FP_EX_INVALID IEEE_TRAP_ENABLE_INV
#define FP_EX_OVERFLOW IEEE_TRAP_ENABLE_OVF
#define FP_EX_UNDERFLOW IEEE_TRAP_ENABLE_UNF
#define FP_EX_DIVZERO IEEE_TRAP_ENABLE_DZE
#define FP_EX_INEXACT IEEE_TRAP_ENABLE_INE
#define FP_EX_DENORM IEEE_TRAP_ENABLE_DNO
#define FP_DENORM_ZERO (swcr & IEEE_MAP_DMZ)
/* We write the results always */
#define FP_INHIBIT_RESULTS 0
#endif
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