arch/sparc/lib/ashldi3.S

   1 /*
   2  * ashldi3.S:   GCC emits these for certain drivers playing
   3  *              with long longs.
   4  *
   5  * Copyright (C) 1999 David S. Miller (davem@redhat.com)
   6  */
   7
   8 #include <linux/linkage.h>
   9 #include <asm/export.h>
  10
  11         .text
  12 ENTRY(__ashldi3)
  13         cmp     %o2, 0
  14         be      9f
  15          mov    0x20, %g2
  16
  17         sub     %g2, %o2, %g2
  18         cmp     %g2, 0
  19         bg      7f
  20          sll    %o0, %o2, %g3
  21
  22         neg     %g2
  23         clr     %o5
  24         b       8f
  25          sll    %o1, %g2, %o4
  26 7:
  27         srl     %o1, %g2, %g2
  28         sll     %o1, %o2, %o5
  29         or      %g3, %g2, %o4
  30 8:
  31         mov     %o4, %o0
  32         mov     %o5, %o1
  33 9:
  34         retl
  35          nop
  36 ENDPROC(__ashldi3)
  37 EXPORT_SYMBOL(__ashldi3)