| /* |
| * LDT copy |
| * |
| * Copyright 1995 Alexandre Julliard |
| */ |
| |
| #ifndef __WINE_LDT_H |
| #define __WINE_LDT_H |
| |
| #include "windef.h" |
| #include "wine/library.h" |
| |
| #define __AHSHIFT 3 /* don't change! */ |
| #define __AHINCR (1 << __AHSHIFT) |
| |
| /* Convert a segmented ptr (16:16) to a linear (32) pointer */ |
| |
| #define PTR_SEG_OFF_TO_LIN(seg,off) \ |
| ((void*)((char*)wine_ldt_copy.base[LOWORD(seg) >> __AHSHIFT] + (unsigned int)(off))) |
| #define PTR_REAL_TO_LIN(seg,off) \ |
| ((void*)(((unsigned int)(seg) << 4) + LOWORD(off))) |
| #define PTR_SEG_TO_LIN(ptr) \ |
| PTR_SEG_OFF_TO_LIN(SELECTOROF(ptr),OFFSETOF(ptr)) |
| #define PTR_SEG_OFF_TO_SEGPTR(seg,off) \ |
| ((SEGPTR)MAKELONG(off,seg)) |
| #define PTR_SEG_OFF_TO_HUGEPTR(seg,off) \ |
| PTR_SEG_OFF_TO_SEGPTR( (seg) + (HIWORD(off) << __AHSHIFT), LOWORD(off) ) |
| |
| #define W32S_APPLICATION() (PROCESS_Current()->flags & PDB32_WIN32S_PROC) |
| #define W32S_OFFSET 0x10000 |
| #define W32S_APP2WINE(addr, offset) ((addr)? (DWORD)(addr) + (DWORD)(offset) : 0) |
| #define W32S_WINE2APP(addr, offset) ((addr)? (DWORD)(addr) - (DWORD)(offset) : 0) |
| |
| #define FIRST_LDT_ENTRY_TO_ALLOC 17 |
| |
| #define IS_SELECTOR_FREE(sel) (!(wine_ldt_copy.flags[LOWORD(sel) >> __AHSHIFT] & WINE_LDT_FLAGS_ALLOCATED)) |
| |
| /* Determine if sel is a system selector (i.e. not managed by Wine) */ |
| #define IS_SELECTOR_SYSTEM(sel) \ |
| (!((sel) & 4) || ((LOWORD(sel) >> __AHSHIFT) < FIRST_LDT_ENTRY_TO_ALLOC)) |
| #define IS_SELECTOR_32BIT(sel) \ |
| (IS_SELECTOR_SYSTEM(sel) || (wine_ldt_copy.flags[LOWORD(sel) >> __AHSHIFT] & WINE_LDT_FLAGS_32BIT)) |
| |
| #endif /* __WINE_LDT_H */ |