60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/****************************************************************************
|
|
* libc/stdlib/lib_bmem2cmem.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#if !defined(CONFIG_ENDIAN_BIG) && CHAR_BIT != 8
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
void bmem2cmem(FAR void *dst_, FAR const void *src_, size_t rem, size_t len)
|
|
{
|
|
char *dst = dst_;
|
|
const char *src = src_;
|
|
|
|
while (1)
|
|
{
|
|
int i;
|
|
|
|
for (i = 8 * rem; i < CHAR_BIT; i += 8)
|
|
{
|
|
if (len-- == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
*dst++ = (*src >> i) & 0xff;
|
|
}
|
|
|
|
rem = 0;
|
|
src++;
|
|
}
|
|
}
|
|
|
|
#endif
|