#include "winsup.h"

#ifndef __NO_INTERLOCKED__

long ilockincr (long *m)
{
  int __res;
  __asm__("\n\
    movl $1,%0\n\
    lock xadd %0,(%1)\n\
    inc  %0\n"
    : "=a" (__res), "=q" (m)
    : "1" (m)
    : "memory" );
  return __res;
}

long ilockdecr (long *m)
{
  int __res;
  __asm__("\n\
    movl $0xffffffff,%0\n\
    lock xadd %0,(%1)\n\
    dec  %0\n"
    : "=a" (__res), "=q" (m)
    : "1" (m)
    : "memory" );
  return __res;
}

long ilockexch (long *t, long v)
{
  int __res;
  __asm__("\n\
1:  lock cmpxchgl %3,(%1)\n\
    jne 1b\n"
    : "=a" (__res), "=q" (t)
    : "1" (t), "q" (v), "0" (*t)
    : "memory" );
  return __res;
}

long ilockcmpexch (long *t, long v, long c)
{
  int __res;
  __asm__("\n\
    lock cmpxchgl %3,(%1)\n"
    : "=a" (__res), "=q" (t)
    : "1" (t), "q" (v), "0" (c)
    : "memory" );
  return __res;
}

#endif /*__NO_INTERLOCKED__*/