tools/testing/selftests/powerpc/copyloops/copy_tofrom_user_reference.S

   1 #include <asm/ppc_asm.h>
   2
   3 _GLOBAL(copy_tofrom_user_reference)
   4         cmpdi   r5,0
   5         beq     4f
   6
   7         mtctr   r5
   8
   9 1:      lbz     r6,0(r4)
  10 2:      stb     r6,0(r3)
  11         addi    r3,r3,1
  12         addi    r4,r4,1
  13         bdnz    1b
  14
  15 3:      mfctr   r3
  16         blr
  17
  18 4:      mr      r3,r5
  19         blr
  20
  21 .section __ex_table,"a"
  22         .llong  1b,3b
  23         .llong  2b,3b
  24 .text