4.104.114.84.95
Last change
on this file since f4fe0092 was
f4fe0092,
checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:52:04
|
2003-09-04 Joel Sherrill <joel@…>
- clock/ckinit.c, console/console.c, consolex/cTest.c,
consolex/consolex.c, consolex/consolex.h, include/bsp.h,
include/coverhd.h, include/tod.h, startup/bspclean.c,
startup/bspstart.c, startup/linkcmds, timer/timer.c,
timer/timerisr.S, tod/tod.c: URL for license changed.
|
-
Property mode set to
100644
|
File size:
1.3 KB
|
Rev | Line | |
---|
[ac7d5ef0] | 1 | /* timer_isr() |
---|
| 2 | * |
---|
| 3 | * This routine provides the ISR for the Z8036 timer on the MVME136 |
---|
| 4 | * board. The timer is set up to generate an interrupt at maximum |
---|
| 5 | * intervals. |
---|
| 6 | * |
---|
| 7 | * Input parameters: NONE |
---|
| 8 | * |
---|
| 9 | * Output parameters: NONE |
---|
| 10 | * |
---|
[08311cc3] | 11 | * COPYRIGHT (c) 1989-1999. |
---|
[ac7d5ef0] | 12 | * On-Line Applications Research Corporation (OAR). |
---|
| 13 | * |
---|
[98e4ebf5] | 14 | * The license and distribution terms for this file may be |
---|
| 15 | * found in the file LICENSE in this distribution or at |
---|
[f4fe0092] | 16 | * http://www.rtems.com/license/LICENSE. |
---|
[ac7d5ef0] | 17 | * |
---|
| 18 | * Modifications of respective RTEMS file: COPYRIGHT (c) 1994. |
---|
| 19 | * EISCAT Scientific Association. M.Savitski |
---|
| 20 | * |
---|
| 21 | * This material is a part of the MVME162 Board Support Package |
---|
| 22 | * for the RTEMS executive. Its licensing policies are those of the |
---|
| 23 | * RTEMS above. |
---|
| 24 | * |
---|
| 25 | * $Id$ |
---|
| 26 | */ |
---|
| 27 | |
---|
| 28 | #include "asm.h" |
---|
| 29 | |
---|
| 30 | BEGIN_CODE |
---|
| 31 | |
---|
| 32 | .set INTR_CLEAR_REG, 0xfff40074 | interrupt clear register |
---|
| 33 | .set RELOAD, 0x01000000 | clear tick 1 interrupt |
---|
| 34 | |
---|
[c6fb8e90] | 35 | PUBLIC (Ttimer_val) |
---|
[ac7d5ef0] | 36 | PUBLIC (timerisr) |
---|
| 37 | SYM (timerisr): |
---|
| 38 | move.l a0, -(a7) | save a0 |
---|
| 39 | movea.l #INTR_CLEAR_REG, a0 | a0 = addr of cmd status reg |
---|
| 40 | ori.l #RELOAD, (a0) | reload countdown |
---|
| 41 | addq.l #1, SYM (Ttimer_val) | increment timer value |
---|
| 42 | move.l (a7)+, a0 | restore a0 |
---|
| 43 | rte |
---|
| 44 | |
---|
| 45 | END_CODE |
---|
| 46 | END |
---|
Note: See
TracBrowser
for help on using the repository browser.