| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109 |
- /* 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 */
|
