| /* |
| * 16-bit mode stack frame layout |
| * |
| * Copyright 1995 Alexandre Julliard |
| */ |
| |
| #ifndef __WINE_STACKFRAME_H |
| #define __WINE_STACKFRAME_H |
| |
| #include <string.h> |
| #include "windows.h" |
| #include "ldt.h" |
| #include "thread.h" |
| |
| #pragma pack(1) |
| |
| /* 32-bit stack layout after CallTo16() */ |
| typedef struct _STACK32FRAME |
| { |
| SEGPTR frame16; /* 00 16-bit frame from last CallFrom16() */ |
| DWORD edi; /* 04 saved registers */ |
| DWORD esi; /* 08 */ |
| DWORD edx; /* 0c */ |
| DWORD ecx; /* 10 */ |
| DWORD ebx; /* 14 */ |
| DWORD restore_addr; /* 18 return address for restoring code selector */ |
| DWORD codeselector; /* 1c code selector to restore */ |
| DWORD ebp; /* 20 saved 32-bit frame pointer */ |
| DWORD retaddr; /* 24 actual return address */ |
| DWORD args[1]; /* 28 arguments to 16-bit function */ |
| } STACK32FRAME; |
| |
| /* 16-bit stack layout after CallFrom16() */ |
| typedef struct |
| { |
| STACK32FRAME *frame32; /* 00 32-bit frame from last CallTo16() */ |
| DWORD ebp; /* 04 full 32-bit content of ebp */ |
| WORD entry_ip; /* 08 ip of entry point */ |
| WORD ds; /* 0a ds */ |
| WORD entry_cs; /* 0c cs of entry point */ |
| WORD es; /* 0e es */ |
| DWORD entry_point; /* 10 32-bit entry point to call */ |
| WORD bp; /* 14 16-bit bp */ |
| WORD ip; /* 16 return address */ |
| WORD cs; /* 18 */ |
| } STACK16FRAME; |
| |
| #pragma pack(4) |
| |
| #define THREAD_STACK16(thdb) ((STACK16FRAME*)PTR_SEG_TO_LIN((thdb)->cur_stack)) |
| #define CURRENT_STACK16 (THREAD_STACK16(THREAD_Current())) |
| #define CURRENT_DS (CURRENT_STACK16->ds) |
| |
| /* varargs lists on the 16-bit stack */ |
| |
| typedef void *VA_LIST16; |
| |
| #define __VA_ROUNDED16(type) \ |
| ((sizeof(type) + sizeof(WORD) - 1) / sizeof(WORD) * sizeof(WORD)) |
| #define VA_START16(list) ((list) = (VA_LIST16)(CURRENT_STACK16 + 1)) |
| #define VA_ARG16(list,type) \ |
| (((list) = (VA_LIST16)((char *)(list) + __VA_ROUNDED16(type))), \ |
| *((type *)(void *)((char *)(list) - __VA_ROUNDED16(type)))) |
| #define VA_END16(list) ((void)0) |
| |
| /* Push bytes on the 16-bit stack of a thread; |
| * return a segptr to the first pushed byte |
| */ |
| #define STACK16_PUSH(thdb,size) \ |
| (memmove((char*)THREAD_STACK16(thdb)-(size),THREAD_STACK16(thdb), \ |
| sizeof(STACK16FRAME)), \ |
| (thdb)->cur_stack -= (size), \ |
| (SEGPTR)((thdb)->cur_stack + sizeof(STACK16FRAME))) |
| |
| /* Pop bytes from the 16-bit stack of a thread */ |
| #define STACK16_POP(thdb,size) \ |
| (memmove((char*)THREAD_STACK16(thdb)+(size),THREAD_STACK16(thdb), \ |
| sizeof(STACK16FRAME)), \ |
| (thdb)->cur_stack += (size)) |
| |
| #endif /* __WINE_STACKFRAME_H */ |