Last change
on this file since 523 was
444,
checked in by satin@…, 7 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.4 KB
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Line | |
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1 | /* mc68ec.c -- Low level support for the Motorola mc68ec0x0 board. |
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2 | * Written by rob@cygnus.com (Rob Savoye) |
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3 | * |
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4 | * Copyright (c) 1995 Cygnus Support |
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5 | * |
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6 | * The authors hereby grant permission to use, copy, modify, distribute, |
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7 | * and license this software and its documentation for any purpose, provided |
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8 | * that existing copyright notices are retained in all copies and that this |
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9 | * notice is included verbatim in any distributions. No written agreement, |
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10 | * license, or royalty fee is required for any of the authorized uses. |
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11 | * Modifications to this software may be copyrighted by their authors |
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12 | * and need not follow the licensing terms described here, provided that |
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13 | * the new terms are clearly indicated on the first page of each file where |
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14 | * they apply. |
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15 | */ |
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16 | #include <sys/types.h> |
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17 | #include <sys/stat.h> |
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18 | #include <_ansi.h> |
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19 | #include <errno.h> |
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20 | #include "leds.h" |
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21 | |
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22 | /* |
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23 | * _exit -- exit the running program. We just cause an exception |
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24 | * which makes the program return to the boot monitor |
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25 | * prompt. It can be restarted from there. |
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26 | */ |
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27 | void |
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28 | _exit (int_status) |
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29 | { |
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30 | /* Use `i' constraint to get proper immediate-operand syntax for |
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31 | target assembler configuration. */ |
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32 | asm ("trap %0" : : "i" (0)); /* seems to be a harmless vector number */ |
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33 | } |
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34 | |
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35 | /* |
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36 | * delay -- delay execution. This is an ugly hack. It should |
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37 | * use the timer, but I'm waiting for docs. (sigh) |
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38 | */ |
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39 | void |
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40 | delay (int num) |
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41 | { |
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42 | while (num--) |
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43 | { |
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44 | asm ("nop"); |
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45 | } |
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46 | } |
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