diff options
Diffstat (limited to 'roms/skiboot/libc/string/memcpy.c')
-rw-r--r-- | roms/skiboot/libc/string/memcpy.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/roms/skiboot/libc/string/memcpy.c b/roms/skiboot/libc/string/memcpy.c new file mode 100644 index 000000000..26f953d2e --- /dev/null +++ b/roms/skiboot/libc/string/memcpy.c @@ -0,0 +1,36 @@ +/****************************************************************************** + * Copyright (c) 2004, 2008 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *****************************************************************************/ + +#include <stddef.h> +#include <ccan/short_types/short_types.h> + +void *memcpy(void *dest, const void *src, size_t n); +void *memcpy(void *dest, const void *src, size_t n) +{ + void *ret = dest; + + while (n >= 8) { + *(uint64_t *)dest = *(uint64_t *)src; + dest += 8; + src += 8; + n -= 8; + } + + while (n > 0) { + *(uint8_t *)dest = *(uint8_t *)src; + dest += 1; + src += 1; + n -= 1; + } + + return ret; +} |