arch/metag/lib/copy_page.S

   1         ! Copyright 2007,2008 Imagination Technologies Ltd.
   2
   3 #include <asm/page.h>
   4
   5         .text
   6         .global _copy_page
   7         .type   _copy_page,function
   8         !! D1Ar1 - to
   9         !! D0Ar2 - from
  10 _copy_page:
  11         MOV  D0FrT,#PAGE_SIZE
  12 $Lcopy_page_loop:
  13         GETL D0Re0,D1Re0,[D0Ar2++]
  14         GETL D0Ar6,D1Ar5,[D0Ar2++]
  15         SETL [D1Ar1++],D0Re0,D1Re0
  16         SETL [D1Ar1++],D0Ar6,D1Ar5
  17         SUBS D0FrT,D0FrT,#16
  18         BNZ  $Lcopy_page_loop
  19         MOV  PC,D1RtP
  20         .size   _copy_page,.-_copy_page