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Viewing changes to src/reference/bionic/memcmp16.S

  • Committer: Michael Hope
  • Date: 2010-08-30 23:30:25 UTC
  • Revision ID: michael.hope@linaro.org-20100830233025-2f14wknqev6ryj01
Modified the imported versions to build locally.  Added the CSL routines.

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src/reference/bionic/memcmp16.S
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 * SUCH DAMAGE.
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 */
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#include <machine/cpu-features.h>
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    .text
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    .global __memcmp16
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__memcmp16:
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        .fnstart
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        PLD         (r0, #0)
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        PLD         (r1, #0)
 
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        PLD         [r0, #0]
 
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        PLD         [r1, #0]
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        /* take of the case where length is nul or the buffers are the same */
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        cmp         r0, r1
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        bpl         0f
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        /* small blocks (less then 12 words) */
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        PLD         (r0, #32)
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        PLD         (r1, #32)
 
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        PLD         [r0, #32]
 
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        PLD         [r1, #32]
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1:      ldrh        r0, [r3], #2
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        ldrh        ip, [r1], #2
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        bmi         1f
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0:
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        PLD         (r3, #64)
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        PLD         (r1, #64)
 
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        PLD         [r3, #64]
 
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        PLD         [r1, #64]
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        ldr         r0, [r3], #4
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        ldr         lr, [r1, #4]!
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        eors        r0, r0, ip
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        sub         r2, r2, #8
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        PLD         (r3, #64)
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        PLD         (r1, #64)
 
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        PLD         [r3, #64]
 
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        PLD         [r1, #64]
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        mov         ip, lr, lsr #16
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        ldr         lr, [r1], #4
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        ldr         r0, [r3], #4