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Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [m68k/] [lib/] [semaphore.S] - Rev 3

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/*
 *  linux/arch/m68k/lib/semaphore.S
 *
 *  Copyright (C) 1996  Linus Torvalds
 *
 *  m68k version by Andreas Schwab
 */

#include <linux/linkage.h>
#include <asm/semaphore.h>

/*
 * The semaphore operations have a special calling sequence that
 * allow us to do a simpler in-line version of them. These routines
 * need to convert that sequence back into the C sequence when
 * there is contention on the semaphore.
 */
ENTRY(__down_failed)
        moveml %a0/%d0/%d1,-(%sp)
        movel %a1,-(%sp)
        jbsr __down
        movel (%sp)+,%a1
        moveml (%sp)+,%a0/%d0/%d1
        rts

ENTRY(__down_failed_interruptible)
        movel %a0,-(%sp)
        movel %d1,-(%sp)
        movel %a1,-(%sp)
        jbsr __down_interruptible
        movel (%sp)+,%a1
        movel (%sp)+,%d1
        movel (%sp)+,%a0
        rts

ENTRY(__down_failed_trylock)
        movel %a0,-(%sp)
        movel %d1,-(%sp)
        movel %a1,-(%sp)
        jbsr __down_trylock
        movel (%sp)+,%a1
        movel (%sp)+,%d1
        movel (%sp)+,%a0
        rts

ENTRY(__up_wakeup)
        moveml %a0/%d0/%d1,-(%sp)
        movel %a1,-(%sp)
        jbsr __up
        movel (%sp)+,%a1
        moveml (%sp)+,%a0/%d0/%d1
        rts

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