llshru.S 1.3 KB

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  1. ;; Copyright (C) 2010 Texas Instruments Incorporated
  2. ;; Contributed by Mark Salter <msalter@redhat.com>.
  3. ;;
  4. ;; This program is free software; you can redistribute it and/or modify
  5. ;; it under the terms of the GNU General Public License as published by
  6. ;; the Free Software Foundation; either version 2 of the License, or
  7. ;; (at your option) any later version.
  8. ;;
  9. ;; This program is distributed in the hope that it will be useful,
  10. ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. ;; GNU General Public License for more details.
  13. ;;
  14. ;; You should have received a copy of the GNU General Public License
  15. ;; along with this program; if not, write to the Free Software
  16. ;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17. ;; uint64_t __c6xabi_llshru(uint64_t val, uint shift)
  18. #include <linux/linkage.h>
  19. .text
  20. ENTRY(__c6xabi_llshru)
  21. mv .l1x B4,A1
  22. [!A1] b .s2 B3 ; return if zero shift count
  23. mvk .s1 32,A0
  24. sub .d1 A0,A1,A0
  25. cmplt .l1 0,A0,A2
  26. [A2] shl .s1 A5,A0,A0
  27. nop
  28. [!A2] neg .l1 A0,A4
  29. || [A2] shru .s1 A4,A1,A4
  30. [!A2] shru .s1 A5,A4,A4
  31. || [A2] or .d1 A4,A0,A4
  32. || [!A2] mvk .l1 0,A5
  33. [A2] shru .s1 A5,A1,A5
  34. bnop .s2 B3,5
  35. ENDPROC(__c6xabi_llshru)