From 6b2cc2fa966d942c6fb9677acbbfc4da1be21549 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 8 Dec 2000 17:19:31 +0000 Subject: [PATCH] Alpha ev67 stpcpyrawmemchr implementation. --- sysdeps/alpha/alphaev67/stpcpy.S | 52 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 sysdeps/alpha/alphaev67/stpcpy.S diff --git a/sysdeps/alpha/alphaev67/stpcpy.S b/sysdeps/alpha/alphaev67/stpcpy.S new file mode 100644 index 0000000..6dcb366 --- /dev/null +++ b/sysdeps/alpha/alphaev67/stpcpy.S @@ -0,0 +1,52 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson . + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Copy SRC to DEST returning the address of the terminating 0 in DEST. */ + +#include + + .arch ev6 + .set noreorder + .set noat + .text + +ENTRY(__stpcpy) + ldgp gp, 0(pv) +#ifdef PROF + lda AT, _mcount + jsr AT, (AT), _mcount +#endif + .prologue 1 + + .align 4 + mov a0, v0 + nop + jsr t9, __stxcpy + + # t8 = bitmask (with one bit set) indicating the last byte written + # a0 = unaligned address of the last *word* written + + cttz t8, t8 + andnot a0, 7, a0 + addq a0, t8, v0 + ret + + END(__stpcpy) + +weak_alias (__stpcpy, stpcpy) -- 2.7.4