URL
https://opencores.org/ocsvn/or1k_old/or1k_old/trunk
Only display areas with differences |
Details |
Blame |
View Log
Rev 1765 |
Rev 1782 |
#include <linux/types.h>
|
#include <linux/types.h>
|
|
|
void * memcpy(void * to, const void * from, size_t n)
|
void * memcpy(void * to, const void * from, size_t n)
|
{
|
{
|
void *xto = to;
|
void *xto = to;
|
size_t temp;
|
size_t temp;
|
|
|
if (!n)
|
if (!n)
|
return xto;
|
return xto;
|
if ((long) to & 1)
|
if ((long) to & 1)
|
{
|
{
|
char *cto = to;
|
char *cto = to;
|
const char *cfrom = from;
|
const char *cfrom = from;
|
*cto++ = *cfrom++;
|
*cto++ = *cfrom++;
|
to = cto;
|
to = cto;
|
from = cfrom;
|
from = cfrom;
|
n--;
|
n--;
|
}
|
}
|
if (n > 2 && (long) to & 2)
|
if (n > 2 && (long) to & 2)
|
{
|
{
|
short *sto = to;
|
short *sto = to;
|
const short *sfrom = from;
|
const short *sfrom = from;
|
*sto++ = *sfrom++;
|
*sto++ = *sfrom++;
|
to = sto;
|
to = sto;
|
from = sfrom;
|
from = sfrom;
|
n -= 2;
|
n -= 2;
|
}
|
}
|
temp = n >> 2;
|
temp = n >> 2;
|
if (temp)
|
if (temp)
|
{
|
{
|
long *lto = to;
|
long *lto = to;
|
const long *lfrom = from;
|
const long *lfrom = from;
|
temp--;
|
temp--;
|
do
|
do
|
*lto++ = *lfrom++;
|
*lto++ = *lfrom++;
|
while (temp--);
|
while (temp--);
|
to = lto;
|
to = lto;
|
from = lfrom;
|
from = lfrom;
|
}
|
}
|
if (n & 2)
|
if (n & 2)
|
{
|
{
|
short *sto = to;
|
short *sto = to;
|
const short *sfrom = from;
|
const short *sfrom = from;
|
*sto++ = *sfrom++;
|
*sto++ = *sfrom++;
|
to = sto;
|
to = sto;
|
from = sfrom;
|
from = sfrom;
|
}
|
}
|
if (n & 1)
|
if (n & 1)
|
{
|
{
|
char *cto = to;
|
char *cto = to;
|
const char *cfrom = from;
|
const char *cfrom = from;
|
*cto = *cfrom;
|
*cto = *cfrom;
|
}
|
}
|
return xto;
|
return xto;
|
}
|
}
|
|
|
© copyright 1999-2024
OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.