Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
 
   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
 
   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */
 
/* Slight modifications for pa-risc linux - Paul Bame <bame@debian.org> */
 
#include <linux/types.h>
#include <asm/string.h>
 
#define OPSIZ (BITS_PER_LONG/8)
typedef unsigned long op_t;
 
void *
memset (void *dstpp, int sc, size_t len)
{
  unsigned int c = sc;
  long int dstp = (long int) dstpp;
 
  if (len >= 8)
    {
      size_t xlen;
      op_t cccc;
 
      cccc = (unsigned char) c;
      cccc |= cccc << 8;
      cccc |= cccc << 16;
      if (OPSIZ > 4)
	/* Do the shift in two steps to avoid warning if long has 32 bits.  */
	cccc |= (cccc << 16) << 16;
 
      /* There are at least some bytes to set.
	 No need to test for LEN == 0 in this alignment loop.  */
      while (dstp % OPSIZ != 0)
	{
	  ((unsigned char *) dstp)[0] = c;
	  dstp += 1;
	  len -= 1;
	}
 
      /* Write 8 `op_t' per iteration until less than 8 `op_t' remain.  */
      xlen = len / (OPSIZ * 8);
      while (xlen > 0)
	{
	  ((op_t *) dstp)[0] = cccc;
	  ((op_t *) dstp)[1] = cccc;
	  ((op_t *) dstp)[2] = cccc;
	  ((op_t *) dstp)[3] = cccc;
	  ((op_t *) dstp)[4] = cccc;
	  ((op_t *) dstp)[5] = cccc;
	  ((op_t *) dstp)[6] = cccc;
	  ((op_t *) dstp)[7] = cccc;
	  dstp += 8 * OPSIZ;
	  xlen -= 1;
	}
      len %= OPSIZ * 8;
 
      /* Write 1 `op_t' per iteration until less than OPSIZ bytes remain.  */
      xlen = len / OPSIZ;
      while (xlen > 0)
	{
	  ((op_t *) dstp)[0] = cccc;
	  dstp += OPSIZ;
	  xlen -= 1;
	}
      len %= OPSIZ;
    }
 
  /* Write the last few bytes.  */
  while (len > 0)
    {
      ((unsigned char *) dstp)[0] = c;
      dstp += 1;
      len -= 1;
    }
 
  return dstpp;
}