source: trunk/libs/newlib/src/libgloss/m68k/mc68ec.c @ 546

Last change on this file since 546 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.4 KB
Line 
1/* mc68ec.c -- Low level support for the Motorola mc68ec0x0 board.
2 *             Written by rob@cygnus.com (Rob Savoye)
3 *
4 * Copyright (c) 1995 Cygnus Support
5 *
6 * The authors hereby grant permission to use, copy, modify, distribute,
7 * and license this software and its documentation for any purpose, provided
8 * that existing copyright notices are retained in all copies and that this
9 * notice is included verbatim in any distributions. No written agreement,
10 * license, or royalty fee is required for any of the authorized uses.
11 * Modifications to this software may be copyrighted by their authors
12 * and need not follow the licensing terms described here, provided that
13 * the new terms are clearly indicated on the first page of each file where
14 * they apply.
15 */
16#include <sys/types.h>
17#include <sys/stat.h>
18#include <_ansi.h>
19#include <errno.h>
20#include "leds.h"
21
22/*
23 * _exit -- exit the running program. We just cause an exception
24 *          which makes the program return to the boot monitor
25 *          prompt. It can be restarted from there.
26 */
27void
28_exit (int_status)
29{
30  /* Use `i' constraint to get proper immediate-operand syntax for
31     target assembler configuration.  */
32  asm ("trap %0" : : "i" (0));  /* seems to be a harmless vector number */
33}
34
35/*
36 * delay -- delay execution. This is an ugly hack. It should
37 *          use the timer, but I'm waiting for docs. (sigh)
38 */
39void
40delay (int num)
41{
42  while (num--)
43    {
44      asm ("nop");
45    }
46}
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