From bebb8dabfbd24798bda59d7915b97707bf06a4b8 Mon Sep 17 00:00:00 2001 From: "Jan (janneke) Nieuwenhuizen" Date: Sun, 22 Nov 2020 20:41:07 +0100 Subject: [PATCH] mescc: Mes C Library: Support ARM tcc: Add __memcpy. * lib/string/__memcpy.c: New file. * include/mes/lib.h (__memcpy): Add prototype. --- include/mes/lib.h | 2 ++ lib/string/__memcpy.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 lib/string/__memcpy.c diff --git a/include/mes/lib.h b/include/mes/lib.h index d806d0cc..42f0d568 100644 --- a/include/mes/lib.h +++ b/include/mes/lib.h @@ -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 diff --git a/lib/string/__memcpy.c b/lib/string/__memcpy.c new file mode 100644 index 00000000..17503071 --- /dev/null +++ b/lib/string/__memcpy.c @@ -0,0 +1,31 @@ +/* -*-comment-start: "//";comment-end:""-*- + * GNU Mes --- Maxwell Equations of Software + * Copyright © 2016,2017,2018,2019,2020 Jan (janneke) Nieuwenhuizen + * + * 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 . + */ + +#include + +void * +__memcpy (void *dest, void const *src, size_t n) +{ + char *p = dest; + char const *q = src; + while (n--) + *p++ = *q++; + return dest; +}