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