include/builtin16.h

   1 /*
   2  * Win16 built-in DLLs definitions
   3  *
   4  * Copyright 1999 Ulrich Weigand
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_BUILTIN16_H
  22 #define __WINE_BUILTIN16_H
  23
  24 #include "windef.h"
  25 #include "wine/windef16.h"
  26
  27 struct _CONTEXT86;
  28 struct _STACK16FRAME;
  29
  30 #include "pshpack1.h"
  31
  32 #ifdef __i386__
  33
  34 typedef struct
  35 {
  36     WORD   pushw_bp;               /* pushw %bp */
  37     BYTE   pushl;                  /* pushl $target */
  38     void (*target)();
  39     WORD   call;                   /* call CALLFROM16 */
  40     short  callfrom16;
  41 } ENTRYPOINT16;
  42
  43 typedef struct
  44 {
  45     BYTE   pushl;                  /* pushl $relay */
  46     void  *relay;
  47     BYTE   lcall;                  /* lcall __FLATCS__:glue */
  48     void  *glue;
  49     WORD   flatcs;
  50     WORD   lret;                   /* lret $nArgs */
  51     WORD   nArgs;
  52     DWORD  arg_types[2];           /* type of each argument */
  53 } CALLFROM16;
  54
  55 #else
  56
  57 typedef struct
  58 {
  59     void (*target)();
  60     WORD   call;                   /* call CALLFROM16 */
  61     short  callfrom16;
  62 } ENTRYPOINT16;
  63
  64 typedef struct
  65 {
  66     WORD   lret;                   /* lret $nArgs */
  67     WORD   nArgs;
  68     DWORD  arg_types[2];           /* type of each argument */
  69 } CALLFROM16;
  70
  71 #endif
  72
  73 #include "poppack.h"
  74
  75 /* argument type flags for relay debugging */
  76 enum arg_types
  77 {
  78     ARG_NONE = 0, /* indicates end of arg list */
  79     ARG_WORD,     /* unsigned word */
  80     ARG_SWORD,    /* signed word */
  81     ARG_LONG,     /* long or segmented pointer */
  82     ARG_PTR,      /* linear pointer */
  83     ARG_STR,      /* linear pointer to null-terminated string */
  84     ARG_SEGSTR    /* segmented pointer to null-terminated string */
  85 };
  86
  87 /* flags added to arg_types[0] */
  88 #define ARG_RET16    0x80000000  /* function returns 16-bit value */
  89 #define ARG_REGISTER 0x40000000  /* function is register */
  90
  91 extern WORD __wine_call_from_16_word();
  92 extern LONG __wine_call_from_16_long();
  93 extern void __wine_call_from_16_regs();
  94
  95 #endif /* __WINE_BUILTIN16_H */