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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [i386ex/] [timer/] [timerisr.S] - Blame information for rev 385

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/*  timer_isr()
 *
 *  This routine provides the ISR for the Z8036 timer on the MVME136
 *  board.   The timer is set up to generate an interrupt at maximum
 *  intervals.
 *
 *  Input parameters:  NONE
 *
 *  Output parameters:  NONE
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id: timerisr.S,v 1.2 2001-09-27 11:59:47 chris Exp $
 */
 
#include "asm.h"
 
        BEGIN_CODE
 
        EXTERN (Ttimer_val)
 
        PUBLIC (timerisr)
SYM (timerisr):
        addl    $250, SYM (Ttimer_val)   # another 250 microseconds
        pushl   eax
        movb    0xa0,al         /* signal generic End Of Interrupt (EOI) to slave PIC */
        outb    al, $0x20
        movb    $0x20, al
        outb    al, $0x20       /* signal generic EOI to Master PIC */
        popl    eax
        iret
 
END_CODE
END

Line No.	Rev	Author	Line
1	30	unneback	`/* 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			`*`
11			`* COPYRIGHT (c) 1989-1999.`
12			`* On-Line Applications Research Corporation (OAR).`
13			`*`
14			`* The license and distribution terms for this file may be`
15			`* found in the file LICENSE in this distribution or at`
16			`* http://www.OARcorp.com/rtems/license.html.`
17			`*`
18			`* $Id: timerisr.S,v 1.2 2001-09-27 11:59:47 chris Exp $`
19			`*/`
20
21			`#include "asm.h"`
22
23			`BEGIN_CODE`
24
25			`EXTERN (Ttimer_val)`
26
27			`PUBLIC (timerisr)`
28			`SYM (timerisr):`
29			`addl $250, SYM (Ttimer_val) # another 250 microseconds`
30			`pushl eax`
31			`movb 0xa0,al /* signal generic End Of Interrupt (EOI) to slave PIC */`
32			`outb al, $0x20`
33			`movb $0x20, al`
34			`outb al, $0x20 /* signal generic EOI to Master PIC */`
35			`popl eax`
36			`iret`
37
38			`END_CODE`
39			`END`

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [i386ex/] [timer/] [timerisr.S] - Blame information for rev 385