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Viewing changes to arch/sh/include/asm/cmpxchg-grb.h

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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Lines of Context:
arch/sh/include/asm/cmpxchg-grb.h
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                "   mov.l   %2,   @%1     \n\t" /* store new value */
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                "1: mov     r1,   r15     \n\t" /* LOGOUT */
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                : "=&r" (retval),
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                  "+r"  (m)
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                : "r"   (val)
 
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                  "+r"  (m),
 
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                  "+r"  (val)           /* inhibit r15 overloading */
 
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                :
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                : "memory", "r0", "r1");
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        return retval;
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                "   mov.b   %2,   @%1     \n\t" /* store new value */
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                "1: mov     r1,   r15     \n\t" /* LOGOUT */
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                : "=&r" (retval),
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                  "+r"  (m)
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                : "r"   (val)
 
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                  "+r"  (m),
 
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                  "+r"  (val)           /* inhibit r15 overloading */
 
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                :
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                : "memory" , "r0", "r1");
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        return retval;
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                "   nop                   \n\t"
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                "   mov    r15,   r1      \n\t" /* r1 = saved sp */
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                "   mov    #-8,   r15     \n\t" /* LOGIN */
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                "   mov.l  @%1,   %0      \n\t" /* load  old value */
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                "   cmp/eq  %0,   %2      \n\t"
 
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                "   mov.l  @%3,   %0      \n\t" /* load  old value */
 
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                "   cmp/eq  %0,   %1      \n\t"
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                "   bf            1f      \n\t" /* if not equal */
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                "   mov.l   %3,   @%1     \n\t" /* store new value */
 
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                "   mov.l   %2,   @%3     \n\t" /* store new value */
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                "1: mov     r1,   r15     \n\t" /* LOGOUT */
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                : "=&r" (retval)
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                :  "r"  (m), "r"  (old), "r"  (new)
 
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                : "=&r" (retval),
 
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                  "+r"  (old), "+r"  (new) /* old or new can be r15 */
 
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                :  "r"  (m)
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                : "memory" , "r0", "r1", "t");
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        return retval;