e2abbb1bb3
Sun Mar 19 16:30:20 1995 Alexandre Julliard (julliard@sunsite.unc.edu) * [*/*] Implemented a new memory mapping scheme. There's no longer a one-to-one mapping between 16-bit and 32-bit pointers. Please see file DEVELOPERS-HINTS for technical details. * [controls/scroll.c] Fixed bug when dragging mouse in horizontal scrollbars. * [tools/build.c] [if1632/*.spec] Removed support for C callback functions and for re-ordering of the 32-bit arguments, as these were never used. This should allow a more efficient callback scheme to be implemented. * [if1632/olecli.spec] Reduced the number of entries to make the 16-bit code fit in 64k. This limitation will soon be removed. * [loader/ldt.c] Rewrote LDT manipulation functions and implemented LDT_GetEntry(). * [memory/global.c] Rewrote Global*() routines to use the new selector allocation mechanism. * [memory/local.c] Rewrote local heap handling to use a Windows-compatible layout (not really finished yet). Implemented TOOLHELP heap-walking routines. * [memory/selector.c] Implemented LDT manipulation API functions. Tue Mar 14 19:50:28 EST 1995 William Magro (wmagro@tc.cornell.edu) * [windows/defdlg.c] Fixed problem where dialogs closed using the System menu ('Close' item or double click on close box) would hang Wine. Sun Mar 12 14:28:13 1995 Michael Patra <micky@marie.physik.TU-Berlin.DE> * [controls/listbox.c] Removed most of the statements for sending a notification message ListBoxDirectory(), DlgDirSelect(), DlgDirList(): Improved the code; Borland's standard file open dialog will work now. * [misc/main.c], [misc/file.c], [miscemu/int21.c] Added support for new command line option "-allowreadonly". If set an attempt to open a read only file in write mode will be converted to opening it read only (many programs try to open all files in read/write mode even if they only intend to read it - this might cause a few under problems under an unix-like environment where most files are read only for a "normal" user) * [loader/selector.c] GetMemoryReference(): Added support for __AHIncr and __AHShift * [misc/dos_fs.c] DOS_SimplifyPath(): This routine simplifies path names ( e.g., it will change "/usr///local/bin/../lib//a" to "/usr/local/lib/a" ) match(): rewritten * [objects/text.c] TEXT_NextLine(): Removed a bug in the handling of LF's * [miscemu/int21.c] GetFileDateTime(): Fixed. SetFileDateTime() is still broken. Sat Mar 11 19:46:19 1995 Martin von Loewis <loewis@informatik.hu-berlin.de> * [controls/menu.c] ChangeMenu: defaults to MF_INSERT InsertMenu: allow insertion even if position is one after last item * [if1632/Imakefile] [if1632/compobj.spec] [if1632/relay.c] [if1632/storage.spec] [include/dlls.h] Added stubs for STORAGE.DLL and COMPOBJ.DLL * [if1632/user.spec] [windows/message.c] InSendMessage: new function * [include/neexe.h][include/ne_image.c] NE_FixupSegment: fixed handling of additive records * [loader/selector.c] GetEntryDLLName: return NULL instead of pointer to DLL.0 if not found * [loader/signal.c] win_fault: Enter debugger on SIGFPE, too Wed Mar 1 21:47:42 1995 Cameron Heide (heide@ee.ualberta.ca) * [miscemu/int*.c] Various minor modifications to the clock tick counter, FindFirst/FindNext funcs, and DPB handling.
62 lines
1.9 KiB
C
62 lines
1.9 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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enum seg_type
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{
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SEGMENT_DATA = 0,
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SEGMENT_STACK = 1,
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SEGMENT_CODE = 2
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};
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/* This structure represents a real LDT entry. */
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/* It is used by get_ldt_entry() and set_ldt_entry(). */
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typedef struct
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{
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unsigned long base; /* base address */
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unsigned long limit; /* segment limit */
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int seg_32bit; /* is segment 32-bit? */
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int read_only; /* is segment read-only? */
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int limit_in_pages; /* is the limit in pages or bytes? */
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enum seg_type type; /* segment type */
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} ldt_entry;
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extern int LDT_GetEntry( int entry, ldt_entry *content );
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extern int LDT_SetEntry( int entry, ldt_entry *content );
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extern void LDT_Print();
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/* This structure is used to build the local copy of the LDT. */
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typedef struct
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{
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unsigned long base; /* base address or 0 if entry is free */
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unsigned long limit; /* limit in bytes or 0 if entry is free */
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} ldt_copy_entry;
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#define LDT_SIZE 8192
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extern ldt_copy_entry ldt_copy[LDT_SIZE];
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#define __AHSHIFT 3
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#define __AHINCR (1 << __AHSHIFT)
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#define SELECTOR_TO_ENTRY(sel) ((int)(sel) >> __AHSHIFT)
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#define ENTRY_TO_SELECTOR(i) ((i) ? (((int)(i) << __AHSHIFT) | 7) : 0)
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#define IS_LDT_ENTRY_FREE(i) (!(ldt_copy[(i)].base || ldt_copy[(i)].limit))
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#define IS_SELECTOR_FREE(sel) (IS_LDT_ENTRY_FREE(SELECTOR_TO_ENTRY(sel)))
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#define GET_SEL_BASE(sel) (ldt_copy[SELECTOR_TO_ENTRY(sel)].base)
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#define GET_SEL_LIMIT(sel) (ldt_copy[SELECTOR_TO_ENTRY(sel)].limit)
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/* Convert a segmented ptr (16:16) to a linear (32) pointer */
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#define PTR_SEG_TO_LIN(ptr) \
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((void*)(GET_SEL_BASE((int)(ptr) >> 16) + ((int)(ptr) & 0xffff)))
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#define PTR_SEG_OFF_TO_LIN(seg,off) \
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((void*)(GET_SEL_BASE(seg) + ((int)(off) & 0xffff)))
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#endif /* _WINE_LDT_H */
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