64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : riscos.h
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** SID : 1.2
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** Last Modified : 11/6/98 11:34:19
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** Retrieved : 11/6/98 11:34:22
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**
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** ident @(#)riscos.h 1.2
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_riscos_h__
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#define __rio_riscos_h__
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#ifdef SCCS_LABELS
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static char *_riscos_h_sccs_ = "@(#)riscos.h 1.2";
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#endif
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/*
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** This module used to define all those little itsy bits required for RISC/OS
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** now it's full of null macros.
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*/
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/*
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** RBYTE reads a byte from a location.
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** RWORD reads a word from a location.
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** WBYTE writes a byte to a location.
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** WWORD writes a word to a location.
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** RINDW reads a word through a pointer.
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** WINDW writes a word through a pointer.
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** RIOSWAB swaps the two bytes of a word, if needed.
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*/
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#define RIOSWAB(N) (N)
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#define WBYTE(A,V) (A)=(uchar)(V)
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#define WWORD(A,V) (A)=(ushort)(V)
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#define RBYTE(A) (uchar)(A)
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#define RWORD(A) (ushort)(A)
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#define RINDW(A) (*(ushort *)(A))
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#define WINDW(A,V) (*(ushort *)(A)=(ushort)(V))
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#endif /* __rio_riscos_h__ */
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