/* Software floating-point emulation.
Definitions for IEEE Single Precision.
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),
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 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 __MATH_EMU_SINGLE_H__
#define __MATH_EMU_SINGLE_H__
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
#define _FP_FRACBITS_S 24
#define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S)
#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
#define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _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_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
#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. */
union _FP_UNION_S
{
float 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_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_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_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg)
#define FP_TO_INT_ROUND_S(r,X,rsz,rsg) _FP_TO_INT_ROUND(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)
#endif /* __MATH_EMU_SINGLE_H__ */
tr>
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer type cleanups from Thomas Gleixner:
"This series does a tree wide cleanup of types related to
timers/timekeeping.
- Get rid of cycles_t and use a plain u64. The type is not really
helpful and caused more confusion than clarity
- Get rid of the ktime union. The union has become useless as we use
the scalar nanoseconds storage unconditionally now. The 32bit
timespec alike storage got removed due to the Y2038 limitations
some time ago.
That leaves the odd union access around for no reason. Clean it up.
Both changes have been done with coccinelle and a small amount of
manual mopping up"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ktime: Get rid of ktime_equal()
ktime: Cleanup ktime_set() usage
ktime: Get rid of the union
clocksource: Use a plain u64 instead of cycle_t