memcpy.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright 2001-2004, ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#define SYSCLIB_DISABLE_BUILTINS
#include <sysclib.h>
 
void *memcpy(void *dest, const void *src, size_t size)
{
    void *result;
 
    result = 0;
    if (dest)
    {
        if ((((u8)((((u32)dest) & 0xff) | (((u32)src) & 0xff)) | (u8)size) & 3) != 0)
        {
            u8 *i;
 
            for (i = dest; size > 0; i += 1)
            {
                char v5;
 
                v5 = *(u8 *)src;
                src = (char *)src + 1;
                size -= 1;
                *i = v5;
            }
            return dest;
        }
        else
        {
            return _wmemcopy((u32 *)dest, (const u32 *)src, size);
        }
    }
    return result;
}