Last change
on this file since b1b9726 was
4c46630,
checked in by Joel Sherrill <joel.sherrill@…>, on 01/31/00 at 15:15:10
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Patch rtems-rc-20000118-1.diff from Ralf Corsepius <corsepiu@…>
that contains:
- cleanups to configuration files
- A reworked gccnewlib.spec.in: I have reformated it for enhanced
readability and added more rtems-base packages. It now should be free of
any installation conflicts (If there still remain some, they should be
regarded as bugs).
- A fix to the bin2boot RTEMS_BSP issue (make RTEMS_BSP="pc386 pc486"
now works).
- removes libbsp/bare/wrapup
- Further cleanups
|
-
Property mode set to
100644
|
File size:
1.3 KB
|
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1 | /* timerisr.s |
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2 | * |
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3 | * If required this ISR is used to bump a count of interval "overflow" |
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4 | * interrupts which have occurred since the timer was started. The |
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5 | * number of overflows is taken into account in the Read_timer() |
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6 | * routine if necessary. |
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7 | * |
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8 | * To reduce overhead this is best to be the "rawest" hardware interupt |
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9 | * handler you can write. This should be the only interrupt which can |
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10 | * occur during the measured time period. |
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11 | * |
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12 | * NOTE: This file is USUALLY in assembly and is LEAN AND MEAN. |
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13 | * Any code in this isr is pure overhead which can perturb |
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14 | * the accuracy of the Timing Test Suite. |
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15 | * |
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16 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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17 | * On-Line Applications Research Corporation (OAR). |
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18 | * All rights assigned to U.S. Government, 1994. |
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19 | * |
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20 | * This material may be reproduced by or for the U.S. Government pursuant |
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21 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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22 | * notice must appear in all copies of this file and its derivatives. |
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23 | * |
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24 | * $Id$ |
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25 | */ |
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26 | |
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27 | #ifndef lint |
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28 | static char _sccsid[] = "@(#)timerisr.c 03/15/96 1.1\n"; |
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29 | #endif |
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30 | |
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31 | #include <rtems.h> |
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32 | |
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33 | extern rtems_unsigned32 _Timer_interrupts; |
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34 | |
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35 | void timerisr( void ) |
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36 | { |
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37 | /* |
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38 | * _Timer_interrupts += TIMER_BETWEEN_OVERFLOWS (usually in microseconds) |
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39 | * return from interrupt |
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40 | */ |
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41 | } |
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