1 /* CPU specific memcpy implementations. 32 bit S/390 version.
2 Copyright (C) 2012-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
21 #include "asm-syntax.h"
24 %r2 = target operands address
25 %r3 = source operands address
26 %r4 = number of bytes to copy. */
30 #if defined SHARED && IS_IN (libc)
32 ENTRY(____mempcpy_z196)
34 .machinemode "zarch_nohighgprs"
35 lr %r1,%r2 # Use as dest
36 la %r2,0(%r4,%r2) # Return dest + n
42 .machinemode "zarch_nohighgprs"
43 lr %r1,%r2 # r1: Use as dest ; r2: Return dest
57 cgfi %r5,262144 # Switch to mvcle for copies >64MB
72 ENTRY(____mempcpy_z10)
74 .machinemode "zarch_nohighgprs"
75 lr %r1,%r2 # Use as dest
76 la %r2,0(%r4,%r2) # Return dest + n
82 .machinemode "zarch_nohighgprs"
83 lr %r1,%r2 # r1: Use as dest ; r2: Return dest
89 cgijlh %r5,0,.L_Z10_13
95 cgfi %r5,65535 # Switch to mvcle for copies >16MB
100 mvc 0(256,%r1),0(%r3)
109 # define __mempcpy ____mempcpy_default
110 #endif /* SHARED && IS_IN (libc) */
112 #define memcpy __memcpy_default
113 #include "../memcpy.S"
116 #if defined SHARED && IS_IN (libc)
118 .set __GI_memcpy,__memcpy_default
120 .set __GI_mempcpy,____mempcpy_default
121 .globl __GI___mempcpy
122 .set __GI___mempcpy,____mempcpy_default
125 .set memcpy,__memcpy_default
127 .set mempcpy,__mempcpy