diff options
author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
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committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/skiboot/libc/string/memcpy.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
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; +} |