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mescc: Mes C Library: Support ARM tcc: Add __memcpy. 

* lib/string/__memcpy.c: New file.
* include/mes/lib.h (__memcpy): Add prototype.
This commit is contained in:
Jan (janneke) Nieuwenhuizen 2020-11-22 20:41:07 +01:00
parent 6a9e9838f0
commit bebb8dabfb
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2 changed files with 33 additions and 0 deletions
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2
include/mes/lib.h
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@ -71,4 +71,6 @@ long __mesabi_idiv (long a, long b);
unsigned long __mesabi_umod (unsigned long a, unsigned long b);
unsigned long __mesabi_udiv (unsigned long a, unsigned long b);
void *__memcpy (void *dest, void const *src, size_t n);
#endif //__MES_LIB_H

31
lib/string/__memcpy.c Normal file
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@ -0,0 +1,31 @@
/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2016,2017,2018,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include <mes/lib.h>
void *
__memcpy (void *dest, void const *src, size_t n)
{
char *p = dest;
char const *q = src;
while (n--)
*p++ = *q++;
return dest;
}