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/* Copyright (C) 1997, 1998 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 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 _SYS_SELECT_H
# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
#endif
#if defined __GNUC__ && __GNUC__ >= 2
# define __FD_ZERO(fdsp) \
do { \
__asm__ __volatile__ ("mov.l %1,er5\n\t" \
"mov.l er5,er6\n\t" \
"inc.l #1,er6\n\t" \
"mov.b #0,r4l\n\t" \
"mov.b r4l,@er5\n\t" \
"mov.l %0,er4\n\t" \
"eepmov.w\n\t" \
:: "r" (sizeof (fd_set)-1), \
"r" (&__FDS_BITS (fdsp)[0]) \
: "er4","er5","er6","memory"); \
} while (0)
# define __FD_SET(fd, fdsp) \
__asm__ __volatile__ ("mov.l %0,er0\n\t" \
"mov.l %1,er1\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"add.l er1,er0\n\t" \
"mov.l %1,er1\n\t" \
"and.b #7,r1l\n\t" \
"bset r1l,@er0\n\t" \
: "=m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \
: "r" (((int) (fd)) % __NFDBITS) \
: "cc","memory","er0","er1")
# define __FD_CLR(fd, fdsp) \
__asm__ __volatile__ ("mov.l %0,er0\n\t" \
"mov.l %1,er1\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"add.l er1,er0\n\t" \
"mov.l %1,er1\n\t" \
"and.b #7,r1l\n\t" \
"bclr r1l,@er0\n\t" \
: "=m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \
: "r" (((int) (fd)) % __NFDBITS) \
: "cc","memory","er0","er1")
# define __FD_ISSET(fd, fdsp) \
(__extension__ \
({register char __result; \
__asm__ __volatile__ ("mov.l %1,er0\n\t" \
"sub.l er1,er1\n\t" \
"mov.w %0,r1\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"shlr.b r1l\n\t" \
"add.l er1,er0\n\t" \
"mov.w %0,r1\n\t" \
"and.b #7,r1l\n\t" \
"btst.b r1l,@er0\n\t" \
"beq 1f\n\t" \
"sub.l er0,er0\n\t" \
"mov.b r1h,r0l\n\t" \
"bra 2f\n" \
"1:\tsub.l er0,er0\n" \
"2:\tmov.w r0,%0\n\t" \
: "=r" (__result) \
: "r" (((int) (fd)) % __NFDBITS), \
"m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \
: "cc"); \
__result; }))
#else /* ! GNU CC */
/* We don't use `memset' because this would require a prototype and
the array isn't too big. */
# define __FD_ZERO(set) \
do { \
unsigned int __i; \
fd_set *__arr = (set); \
for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \
__FDS_BITS (__arr)[__i] = 0; \
} while (0)
# define __FD_SET(d, set) (__FDS_BITS (set)[__FDELT (d)] |= __FDMASK (d))
# define __FD_CLR(d, set) (__FDS_BITS (set)[__FDELT (d)] &= ~__FDMASK (d))
# define __FD_ISSET(d, set) (__FDS_BITS (set)[__FDELT (d)] & __FDMASK (d))
#endif /* GNU CC */
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