LXR linux/arch/sparc/lib/strncmp

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Sparc64 optimized strncmp code.
   4 *
   5 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
   6 */
   7
   8#include <linux/linkage.h>
   9#include <asm/asi.h>
  10#include <asm/export.h>
  11
  12        .text
  13ENTRY(strncmp)
  14        brlez,pn %o2, 3f
  15         lduba  [%o0] (ASI_PNF), %o3
  161:
  17        add     %o0, 1, %o0
  18        ldub    [%o1], %o4
  19        brz,pn  %o3, 2f
  20         add    %o1, 1, %o1
  21        cmp     %o3, %o4
  22        bne,pn  %icc, 2f
  23         subcc  %o2, 1, %o2
  24        bne,a,pt %xcc, 1b
  25         ldub   [%o0], %o3
  262:
  27        retl
  28         sub    %o3, %o4, %o0
  293:
  30        retl
  31         clr    %o0
  32ENDPROC(strncmp)
  33EXPORT_SYMBOL(strncmp)
  34