arch/alpha/lib/clear_page.S

   1 /*
   2  * arch/alpha/lib/clear_page.S
   3  *
   4  * Zero an entire page.
   5  */
   6
   7         .text
   8         .align 4
   9         .global clear_page
  10         .ent clear_page
  11 clear_page:
  12         .prologue 0
  13
  14         lda     $0,128
  15         nop
  16         unop
  17         nop
  18
  19 1:      stq     $31,0($16)
  20         stq     $31,8($16)
  21         stq     $31,16($16)
  22         stq     $31,24($16)
  23
  24         stq     $31,32($16)
  25         stq     $31,40($16)
  26         stq     $31,48($16)
  27         subq    $0,1,$0
  28
  29         stq     $31,56($16)
  30         addq    $16,64,$16
  31         unop
  32         bne     $0,1b
  33
  34         ret
  35         nop
  36         unop
  37         nop
  38
  39         .end clear_page