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/*

** -----------------------------------------------------------------------------

**

**  Perle Specialix driver for Linux

**  Ported from existing RIO Driver for SCO sources.

 *

 *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.

 *

 *      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 2 of the License, 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, write to the Free Software

 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

**

**      Module          : riscos.h

**      SID             : 1.2

**      Last Modified   : 11/6/98 11:34:19

**      Retrieved       : 11/6/98 11:34:22

**

**  ident @(#)riscos.h  1.2

**

** -----------------------------------------------------------------------------

*/

#ifndef __rio_riscos_h__

#define __rio_riscos_h__

#ifdef SCCS_LABELS

static char *_riscos_h_sccs_ = "@(#)riscos.h    1.2";

#endif

/*

** This module used to define all those little itsy bits required for RISC/OS

** now it's full of null macros.

*/

/*

**      RBYTE reads a byte from a location.

**      RWORD reads a word from a location.

**      WBYTE writes a byte to a location.

**      WWORD writes a word to a location.

**      RINDW reads a word through a pointer.

**      WINDW writes a word through a pointer.

**      RIOSWAB swaps the two bytes of a word, if needed.

*/

#define RIOSWAB(N)      (N)

#define WBYTE(A,V)      (A)=(uchar)(V)

#define WWORD(A,V)      (A)=(ushort)(V)

#define RBYTE(A)        (uchar)(A)

#define RWORD(A)        (ushort)(A)

#define RINDW(A)        (*(ushort *)(A))

#define WINDW(A,V)      (*(ushort *)(A)=(ushort)(V))

#endif /* __rio_riscos_h__ */