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dos changes c2woody

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1689
This commit is contained in:
Peter Veenstra 2004-02-28 16:35:42 +00:00
parent 410b9f72d2
commit e05d508f81
6 changed files with 72 additions and 14 deletions
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36
include/dos_inc.h
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@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_inc.h,v 1.38 2004-02-28 16:35:42 qbix79 Exp $ */
#ifndef DOS_H_
#define DOS_H_
@ -349,19 +351,37 @@ public:
#pragma pack(1)
#endif
struct sDIB {
Bit8u stuff1[20]; // -0x18 some stuff, hopefully never used....
RealPt firstMCB; // -0x04 first memory control block
RealPt firstDPB; // 0x00 first drive parameter block
Bit16u regCXfrom5e; // -0x18 CX from last int21/ah=5e
Bit16u countLRUcache; // -0x16 LRU counter for FCB caching
Bit16u countLRUopens; // -0x14 LRU counter for FCB openings
Bit8u stuff1[6]; // -0x12 some stuff, hopefully never used....
Bit16u sharingCount; // -0x0c sharing retry count
Bit16u sharingDelay; // -0x0a sharing retry delay
RealPt diskBufPtr; // -0x08 pointer to disk buffer
Bit16u ptrCONinput; // -0x04 pointer to con input
Bit16u firstMCB; // -0x02 first memory control block
RealPt firstDPB; // 0x00 first drive parameter block
RealPt firstFileTable; // 0x04 first system file table
RealPt activeClock; // 0x08 active clock device header
RealPt activeCon; // 0x0c active console device header
RealPt activeCon; // 0x0c active console device header
Bit16u maxSectorLength; // 0x10 maximum bytes per sector of any block device;
RealPt discInfoBuffer; // 0x12 pointer to disc info buffer
RealPt curDirStructure; // 0x16 pointer to current array of directory structure
RealPt fcbTable; // 0x1a pointer to system FCB table
Bit8u stuff2[0x21]; // 0x1e more stuff
Bit16u buffers_x; // x in BUFFERS x,y
Bit16u buffers_y; // y in BUFFERS x,y
RealPt fcbTable; // 0x1a pointer to system FCB table
Bit16u protFCBs; // 0x1e protected fcbs
Bit8u blockDevices; // 0x20 installed block devices
Bit8u lastdrive; // 0x21 lastdrive
Bit8u stuff2[0x12]; // 0x22 NUL driver
Bit8u joindedDrives; // 0x34 joined drives
Bit16u specialCodeSeg; // 0x35 special code segment
RealPt setverPtr; // 0x37 pointer to setver
Bit16u a20FixOfs; // 0x3b a20 fix routine offset
Bit16u pspLastIfHMA; // 0x3d psp of last program (if dos in hma)
Bit16u buffers_x; // 0x3f x in BUFFERS x,y
Bit16u buffers_y; // 0x41 y in BUFFERS x,y
Bit8u bootDrive; // 0x43 boot drive
Bit8u useDwordMov; // 0x44 use dword moves
Bit16u extendedSize; // 0x45 size of extended memory
// some more stuff, hopefully never used.
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER