Subversion Repositories openrisc_2011-10-31

/* Simulation code for the CR16 processor.

   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.

   Contributed by M Ranga Swami Reddy <MR.Swami.Reddy@nsc.com>

   This file is part of GDB, the GNU debugger.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3, or (at your option)

   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program. If not, see <http://www.gnu.org/licenses/>.  */

/* If we're being compiled as a .c file, rather than being included in

   cr16_sim.h, then ENDIAN_INLINE won't be defined yet.  */

#ifndef ENDIAN_INLINE

#define NO_ENDIAN_INLINE

#include "cr16_sim.h"

#define ENDIAN_INLINE

#endif

ENDIAN_INLINE uint16

get_word (x)

      uint8 *x;

{

  return *(uint16 *)x;

}

ENDIAN_INLINE uint32

get_longword (x)

      uint8 *x;

{

  return (((uint32) *(uint16 *)x) << 16) | ((uint32) *(uint16 *)(x+2));

}

ENDIAN_INLINE int64

get_longlong (x)

      uint8 *x;

{

  uint32 top = get_longword (x);

  uint32 bottom = get_longword (x+4);

  return (((int64)top)<<32) | (int64)bottom;

}

ENDIAN_INLINE void

write_word (addr, data)

     uint8 *addr;

     uint16 data;

{

  addr[1] = (data >> 8) & 0xff;

  addr[0] = data & 0xff;

}

ENDIAN_INLINE void

write_longword (addr, data)

     uint8 *addr;

     uint32 data;

{

  *(uint16 *)(addr + 2) = (uint16)(data >> 16);

  *(uint16 *)(addr) = (uint16)data;

}

ENDIAN_INLINE void

write_longlong (addr, data)

     uint8 *addr;

     int64 data;

{

  write_longword (addr+4, (uint32)(data >> 32));

  write_longword (addr, (uint32)data);

}