targsys.h

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/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  Definition of code generator targets.
*
****************************************************************************/


#ifndef _TARG_INCLUDED
#define _TARG_INCLUDED

/*  target processors (_HOST) */
#define   _TARG_IAPX86   1
#define   _TARG_80386    2
#define   _TARG_370      4
#define   _TARG_PPC      8
#define   _TARG_AXP     16
#define   _TARG_MIPS    32

#define   _TARG_INTEL   (_TARG_80386|_TARG_IAPX86)
#define   _TARG_RISC    (_TARG_PPC|_TARG_AXP|_TARG_MIPS)

/*  target character sets (_CSET) */
#define   _TARG_ASCII    1
#define   _TARG_EBCDIC   2

/*  target word ordering (_MEMORY) */
#define   _TARG_LOW_FIRST       1
#define   _TARG_HIGH_FIRST      2

#include <deftarg.h>

#if _TARGET & _TARG_80386
    #define _TARG_CSET          _TARG_ASCII
    #define _TARG_INTEGER       32
    #define _TARG_IS_SEGMENTED  1
    #define _TARG_MEMORY        _TARG_LOW_FIRST
    #define WD                  U4
    #define SW                  I4
    #define WORD_SIZE           4
    #define REG_SIZE            4
    #define T_WORD              T_UINT_4
    #define _PHAR_LAP
#elif _TARGET &  _TARG_IAPX86
    #define _TARG_CSET          _TARG_ASCII
    #define _TARG_INTEGER       16
    #define _TARG_MEMORY        _TARG_LOW_FIRST
    #define _TARG_IS_SEGMENTED  1
    #define WD                  U2
    #define SW                  I2
    #define WORD_SIZE           2
    #define REG_SIZE            2
    #define T_WORD              T_UINT_2
    #undef  _PHAR_LAP
#elif _TARGET & _TARG_370
    #define _TARG_CSET          _TARG_EBCDIC
    #define _TARG_INTEGER       32
    #define _TARG_MEMORY        _TARG_HIGH_FIRST
    #define WD                  U4
    #define SW                  I4
    #define WORD_SIZE           4
    #define REG_SIZE            4
    #define T_WORD              T_UINT_4
#elif _TARGET & _TARG_PPC
    #define _TARG_CSET          _TARG_ASCII
    #define _TARG_INTEGER       32
    #define _TARG_IS_SEGMENTED  0
    #define _TARG_MEMORY        _TARG_LOW_FIRST
    #define WD                  U4
    #define SW                  I4
    #define WORD_SIZE           4
    #define REG_SIZE            4
    #define PAGE_SIZE           4096            /* for stack crawling */
    #define T_WORD              T_UINT_4
    #define STACK_ALIGNMENT     16
    #define STACK_HEADER_SIZE   24
#elif _TARGET & _TARG_MIPS
    #define _TARG_CSET          _TARG_ASCII
    #define _TARG_INTEGER       32
    #define _TARG_IS_SEGMENTED  0
    #define _TARG_MEMORY        _TARG_LOW_FIRST
    #define WD                  U4
    #define SW                  I4
    #define WORD_SIZE           4
    #define REG_SIZE            4
    #define PAGE_SIZE           4096            /* for stack crawling */
    #define T_WORD              T_UINT_4
    #define STACK_ALIGNMENT     16
    #define STACK_HEADER_SIZE   24
#elif _TARGET & _TARG_AXP
    #define _TARG_CSET          _TARG_ASCII
    #define _TARG_INTEGER       32
    #define _TARG_IS_SEGMENTED  0
    #define _TARG_MEMORY        _TARG_LOW_FIRST
    #define WD                  U4
    #define SW                  I4
    #define WORD_SIZE           4
    #define REG_SIZE            8
    #define PAGE_SIZE           4096            /* for stack crawling */
    #define T_WORD              T_UINT_4
    #define STACK_ALIGNMENT     16
#else
    #error Unknown target processor!
#endif

#endif