cghwreg.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 351 行 · 第 1/2 页

/****************************************************************************
*
*                            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:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include <limits.h>

#ifdef HW_NEED_160
    #define HW_160( x ) x
    #define HW_128( x ) x
    #define HW_96( x )  x
    #define HW_64( x )  x
#else
    #ifdef HW_NEED_64
        #define HW_64( x ) x
    #else
        #define HW_64( x )
    #endif
#endif
#define HW_COMMA ,

#include "cgstd.h"

#define __0(x) x##_0
#define __1(x) x##_1
#define __2(x) x##_2
#define __3(x) x##_3
#define __4(x) x##_4
#define __5(x) x##_5
#define __6(x) x##_6
#define __7(x) x##_7


#if INT_MAX == SHRT_MAX

    #error Forget it - no more 16-bit hosts - buy a real machine.

#else

    #define HW_0( x ) x
    #ifdef HW_NEED_160
        #define HW_1( x )       x
        #define HW_2( x )       x
        #define HW_3( x )       x
        #define HW_4( x )       x
        #define HW_5( x )
        #define HW_6( x )
        #define HW_7( x )
    #else
        #ifdef HW_NEED_64   /* don't use HW_64 here! */
            #define HW_1( x ) x
        #else
            #define HW_1( x )
        #endif
        #define HW_2( x )
        #define HW_3( x )
        #define HW_4( x )
        #define HW_5( x )
        #define HW_6( x )
        #define HW_7( x )
    #endif

    #ifdef HW_NEED_160
        #define HW_DEFINE_SIMPLE( r, p_0, p_1, p_2, p_3, p_4, p_5, p_6, p_7, p_8, p_9 )  \
            enum {                      \
                                 r##_0 = (HWT)p_0+(HWT)(p_1<<16)  \
                        HW_64( HW_COMMA r##_1 = (HWT)p_2+(HWT)(p_3<<16) ) \
                        HW_96( HW_COMMA r##_2 = (HWT)p_4+(HWT)(p_5<<16) ) \
                        HW_128( HW_COMMA r##_3 = (HWT)p_6+(HWT)(p_7<<16) ) \
                        HW_160( HW_COMMA r##_4 = (HWT)p_8+(HWT)(p_9<<16) ) \
            }
    #else
        #define HW_DEFINE_SIMPLE( r, p_0, p_1, p_2, p_3 )  \
            enum {                      \
                                r##_0 = (HWT)p_0+(HWT)(p_1<<16)  \
                HW_64( HW_COMMA r##_1 = (HWT)p_2+(HWT)(p_3<<16) )\
            }
    #endif

#endif

typedef unsigned hw_reg_part;
typedef hw_reg_part HWT;

typedef struct hw_reg_set {
    HW_0( HWT _0; )
    HW_1( HWT _1; )
    HW_2( HWT _2; )
    HW_3( HWT _3; )
    HW_4( HWT _4; )
    HW_5( HWT _5; )
    HW_6( HWT _6; )
    HW_7( HWT _7; )
} hw_reg_set;

#define HW_Op1(a        ,x) HW_0(          x (__0(a)                        ))\
                            HW_1( HW_COMMA x (__1(a)                        ))\
                            HW_2( HW_COMMA x (__2(a)                        ))\
                            HW_3( HW_COMMA x (__3(a)                        ))\
                            HW_4( HW_COMMA x (__4(a)                        ))\
                            HW_5( HW_COMMA x (__5(a)                        ))\
                            HW_6( HW_COMMA x (__6(a)                        ))\
                            HW_7( HW_COMMA x (__7(a)                        ))\

#define HW_Op2(a,b      ,x) HW_0(          x (__0(a)+__0(b)                  ))\
                            HW_1( HW_COMMA x (__1(a)+__1(b)                  ))\
                            HW_2( HW_COMMA x (__2(a)+__2(b)                  ))\
                            HW_3( HW_COMMA x (__3(a)+__3(b)                  ))\
                            HW_4( HW_COMMA x (__4(a)+__4(b)                  ))\
                            HW_5( HW_COMMA x (__5(a)+__5(b)                  ))\
                            HW_6( HW_COMMA x (__6(a)+__6(b)                  ))\
                            HW_7( HW_COMMA x (__7(a)+__7(b)                  ))\

#define HW_Op3(a,b,c    ,x) HW_0(          x (__0(a)+__0(b)+__0(c)            ))\
                            HW_1( HW_COMMA x (__1(a)+__1(b)+__1(c)            ))\
                            HW_2( HW_COMMA x (__2(a)+__2(b)+__2(c)            ))\
                            HW_3( HW_COMMA x (__3(a)+__3(b)+__3(c)            ))\
                            HW_4( HW_COMMA x (__4(a)+__4(b)+__4(c)            ))\
                            HW_5( HW_COMMA x (__5(a)+__5(b)+__5(c)            ))\
                            HW_6( HW_COMMA x (__6(a)+__6(b)+__6(c)            ))\
                            HW_7( HW_COMMA x (__7(a)+__7(b)+__7(c)            ))\

#define HW_Op4(a,b,c,d  ,x) HW_0(          x (__0(a)+__0(b)+__0(c)+__0(d)      ))\
                            HW_1( HW_COMMA x (__1(a)+__1(b)+__1(c)+__1(d)      ))\
                            HW_2( HW_COMMA x (__2(a)+__2(b)+__2(c)+__2(d)      ))\
                            HW_3( HW_COMMA x (__3(a)+__3(b)+__3(c)+__3(d)      ))\
                            HW_4( HW_COMMA x (__4(a)+__4(b)+__4(c)+__4(d)      ))\
                            HW_5( HW_COMMA x (__5(a)+__5(b)+__5(c)+__5(d)      ))\
                            HW_6( HW_COMMA x (__6(a)+__6(b)+__6(c)+__6(d)      ))\
                            HW_7( HW_COMMA x (__7(a)+__7(b)+__7(c)+__7(d)      ))\

#define HW_Op5(a,b,c,d,e,x) HW_0(          x (__0(a)+__0(b)+__0(c)+__0(d)+__0(e)))\
                            HW_1( HW_COMMA x (__1(a)+__1(b)+__1(c)+__1(d)+__1(e)))\
                            HW_2( HW_COMMA x (__2(a)+__2(b)+__2(c)+__2(d)+__2(e)))\
                            HW_3( HW_COMMA x (__3(a)+__3(b)+__3(c)+__3(d)+__3(e)))\
                            HW_4( HW_COMMA x (__4(a)+__4(b)+__4(c)+__4(d)+__4(e)))\
                            HW_5( HW_COMMA x (__5(a)+__5(b)+__5(c)+__5(d)+__5(e)))\
                            HW_6( HW_COMMA x (__6(a)+__6(b)+__6(c)+__6(d)+__6(e)))\
                            HW_7( HW_COMMA x (__7(a)+__7(b)+__7(c)+__7(d)+__7(e)))\


#define    HW_D_1(a        )    {HW_Op1(a        ,+)}
#define HW_NotD_1(a        )    {HW_Op1(a        ,~)}
#define    HW_D_2(a,b      )    {HW_Op2(a,b      ,+)}
#define HW_NotD_2(a,b      )    {HW_Op2(a,b      ,~)}
#define    HW_D_3(a,b,c    )    {HW_Op3(a,b,c    ,+)}
#define HW_NotD_3(a,b,c    )    {HW_Op3(a,b,c    ,~)}
#define    HW_D_4(a,b,c,d  )    {HW_Op4(a,b,c,d  ,+)}
#define HW_NotD_4(a,b,c,d  )    {HW_Op4(a,b,c,d  ,~)}