47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* mc68ec.c -- Low level support for the Motorola mc68ec0x0 board.
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* Written by rob@cygnus.com (Rob Savoye)
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*
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* Copyright (c) 1995 Cygnus Support
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <_ansi.h>
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#include <errno.h>
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#include "leds.h"
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/*
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* _exit -- exit the running program. We just cause an exception
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* which makes the program return to the boot monitor
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* prompt. It can be restarted from there.
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*/
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void
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_exit (int_status)
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{
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/* Use `i' constraint to get proper immediate-operand syntax for
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target assembler configuration. */
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asm ("trap %0" : : "i" (0)); /* seems to be a harmless vector number */
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}
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/*
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* delay -- delay execution. This is an ugly hack. It should
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* use the timer, but I'm waiting for docs. (sigh)
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*/
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void
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delay (int num)
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{
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while (num--)
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{
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asm ("nop");
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}
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}
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