/*
* Copyright (c) 1994, 1998, 2000 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* All bugs are subject to removal without further notice */
#if 0 /* unused, but no point in deleting it since it _is_ an instruction */
static __inline int __attribute__((__unused__))
locc(int mask, char *cp, size_t size){
register ret;
/*
* Set/clear a bit at a memory position; interlocked.
* Return 0 if already set, 1 otherwise.
*/
static __inline int __attribute__((__unused__))
bbssi(int bitnr, long *addr)
{
register int ret;
/*
* Interlock instructions. Used both in multiprocessor environments to
* lock between CPUs and in uniprocessor systems when locking is required
* between I/O devices and the master CPU.
*/
/*
* Insqti() locks and inserts an element into the end of a queue.
* Returns -1 if interlock failed, 1 if inserted OK and 0 if first in queue.
*/
static __inline int __attribute__((__unused__))
insqti(void *entry, void *header) {
register int ret;
/*
* Remqhi() removes an element from the head of the queue.
* Returns -1 if interlock failed, 0 if queue empty, address of the
* removed element otherwise.
*/
static __inline void *__attribute__((__unused__))
remqhi(void *header) {
register void *ret;