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dosbox-staging/include/dos_inc.h
Peter Veenstra e3a7a48687 Added SDA. 
Update DTA/PSP to use SDA.
Added some more pic commands.
Cleaned dos.cpp up a bit.
Handled some more calls in dos.cpp.
Changed execute and terminate to mess less with the dta.
Removed all dta references and changes in PSP.
Added some messages to messagefile for mount.


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1787
2004-05-04 18:34:08 +00:00

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/*
* Copyright (C) 2002-2004 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_inc.h,v 1.42 2004-05-04 18:34:07 qbix79 Exp $ */
#ifndef DOS_H_
#define DOS_H_
#include <dos_system.h>
#include <mem.h>
#ifdef _MSC_VER
#pragma pack (1)
#endif
struct CommandTail{
Bit8u count; /* number of bytes returned */
char buffer[127]; /* the buffer itself */
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack ()
#endif
struct DOS_Date {
Bit16u year;
Bit8u month;
Bit8u day;
};
struct DOS_Version {
Bit8u major,minor,revision;
};
#ifdef _MSC_VER
#pragma pack (1)
#endif
union bootSector {
struct entries {
Bit8u jump[3];
Bit8u oem_name[8];
Bit16u bytesect;
Bit8u sectclust;
Bit16u reserve_sect;
Bit8u misc[496];
} bootdata;
Bit8u rawdata[512];
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack ()
#endif
enum { MCB_FREE=0x0000,MCB_DOS=0x0008 };
enum { RETURN_EXIT=0,RETURN_CTRLC=1,RETURN_ABORT=2,RETURN_TSR=3};
#define DOS_FILES 50
#define DOS_DRIVES 26
/* internal Dos Tables */
extern DOS_File * Files[DOS_FILES];
extern DOS_Drive * Drives[DOS_DRIVES];
extern Bit8u dos_copybuf[0x10000];
void DOS_SetError(Bit16u code);
/* File Handling Routines */
enum { STDIN=0,STDOUT=1,STDERR=2,STDAUX=3,STDNUL=4,STDPRN=5};
enum { HAND_NONE=0,HAND_FILE,HAND_DEVICE};
/* Routines for File Class */
void DOS_SetupFiles (void);
bool DOS_ReadFile(Bit16u handle,Bit8u * data,Bit16u * amount);
bool DOS_WriteFile(Bit16u handle,Bit8u * data,Bit16u * amount);
bool DOS_SeekFile(Bit16u handle,Bit32u * pos,Bit32u type);
bool DOS_CloseFile(Bit16u handle);
bool DOS_DuplicateEntry(Bit16u entry,Bit16u * newentry);
bool DOS_ForceDuplicateEntry(Bit16u entry,Bit16u newentry);
bool DOS_GetFileDate(Bit16u entry, Bit16u* otime, Bit16u* odate);
/* Routines for Drive Class */
bool DOS_OpenFile(char * name,Bit8u flags,Bit16u * entry);
bool DOS_OpenFileExtended(char *name, Bit16u flags, Bit16u createAttr, Bit16u action, Bit16u *entry, Bit16u* status);
bool DOS_CreateFile(char * name,Bit16u attribute,Bit16u * entry);
bool DOS_UnlinkFile(char * name);
bool DOS_FindFirst(char *search,Bit16u attr,bool fcb_findfirst=false);
bool DOS_FindNext(void);
bool DOS_Canonicalize(char * name,char * big);
bool DOS_CreateTempFile(char * name,Bit16u * entry);
bool DOS_FileExists(char * name);
/* Helper Functions */
bool DOS_MakeName(char * name,char * fullname,Bit8u * drive);
/* Drive Handing Routines */
Bit8u DOS_GetDefaultDrive(void);
void DOS_SetDefaultDrive(Bit8u drive);
bool DOS_SetDrive(Bit8u drive);
bool DOS_GetCurrentDir(Bit8u drive,char * bugger);
bool DOS_ChangeDir(char * dir);
bool DOS_MakeDir(char * dir);
bool DOS_RemoveDir(char * dir);
bool DOS_Rename(char * oldname,char * newname);
bool DOS_GetFreeDiskSpace(Bit8u drive,Bit16u * bytes,Bit8u * sectors,Bit16u * clusters,Bit16u * free);
bool DOS_GetFileAttr(char * name,Bit16u * attr);
bool DOS_SetFileAttr(char * name,Bit16u attr);
/* IOCTL Stuff */
bool DOS_IOCTL(void);
bool DOS_GetSTDINStatus();
Bit8u DOS_FindDevice(char * name);
void DOS_SetupDevices(void);
/* Execute and new process creation */
bool DOS_NewPSP(Bit16u pspseg,Bit16u size);
bool DOS_ChildPSP(Bit16u pspseg,Bit16u size);
bool DOS_Execute(char * name,PhysPt block,Bit8u flags);
bool DOS_Terminate(bool tsr);
/* Memory Handling Routines */
void DOS_SetupMemory(void);
bool DOS_AllocateMemory(Bit16u * segment,Bit16u * blocks);
bool DOS_ResizeMemory(Bit16u segment,Bit16u * blocks);
bool DOS_FreeMemory(Bit16u segment);
void DOS_FreeProcessMemory(Bit16u pspseg);
Bit16u DOS_GetMemory(Bit16u pages);
void DOS_SetMemAllocStrategy(Bit16u strat);
Bit16u DOS_GetMemAllocStrategy(void);
/* FCB stuff */
bool DOS_FCBOpen(Bit16u seg,Bit16u offset);
bool DOS_FCBCreate(Bit16u seg,Bit16u offset);
bool DOS_FCBClose(Bit16u seg,Bit16u offset);
bool DOS_FCBFindFirst(Bit16u seg,Bit16u offset);
bool DOS_FCBFindNext(Bit16u seg,Bit16u offset);
Bit8u DOS_FCBRead(Bit16u seg,Bit16u offset, Bit16u numBlocks);
Bit8u DOS_FCBWrite(Bit16u seg,Bit16u offset,Bit16u numBlocks);
Bit8u DOS_FCBRandomRead(Bit16u seg,Bit16u offset,Bit16u numRec,bool restore);
Bit8u DOS_FCBRandomWrite(Bit16u seg,Bit16u offset,Bit16u numRec,bool restore);
bool DOS_FCBGetFileSize(Bit16u seg,Bit16u offset,Bit16u numRec);
bool DOS_FCBDeleteFile(Bit16u seg,Bit16u offset);
bool DOS_FCBRenameFile(Bit16u seg, Bit16u offset);
void DOS_FCBSetRandomRecord(Bit16u seg, Bit16u offset);
Bit8u FCB_Parsename(Bit16u seg,Bit16u offset,Bit8u parser ,char *string, Bit8u *change);
bool DOS_GetAllocationInfo(Bit8u drive,Bit16u * _bytes_sector,Bit8u * _sectors_cluster,Bit16u * _total_clusters);
/* Extra DOS Interrupts */
void DOS_SetupMisc(void);
/* The DOS Tables */
void DOS_SetupTables(void);
/* Internal DOS Setup Programs */
void DOS_SetupPrograms(void);
INLINE Bit16u long2para(Bit32u size) {
if (size>0xFFFF0) return 0xffff;
if (size&0xf) return (Bit16u)((size>>4)+1);
else return (Bit16u)(size>>4);
}
INLINE Bit16u DOS_PackTime(Bit16u hour,Bit16u min,Bit16u sec) {
return (hour&0x1f)<<11 | (min&0x3f) << 5 | ((sec/2)&0x1f);
}
INLINE Bit16u DOS_PackDate(Bit16u year,Bit16u mon,Bit16u day) {
return ((year-1980)&0x7f)<<9 | (mon&0x3f) << 5 | (day&0x1f);
}
/* Dos Error Codes */
#define DOSERR_NONE 0
#define DOSERR_FUNCTION_NUMBER_INVALID 1
#define DOSERR_FILE_NOT_FOUND 2
#define DOSERR_PATH_NOT_FOUND 3
#define DOSERR_TOO_MANY_OPEN_FILES 4
#define DOSERR_ACCESS_DENIED 5
#define DOSERR_INVALID_HANDLE 6
#define DOSERR_MCB_DESTROYED 7
#define DOSERR_INSUFFICIENT_MEMORY 8
#define DOSERR_MB_ADDRESS_INVALID 9
#define DOSERR_ENVIRONMENT_INVALID 10
#define DOSERR_FORMAT_INVALID 11
#define DOSERR_ACCESS_CODE_INVALID 12
#define DOSERR_DATA_INVALID 13
#define DOSERR_RESERVED 14
#define DOSERR_FIXUP_OVERFLOW 14
#define DOSERR_INVALID_DRIVE 15
#define DOSERR_REMOVE_CURRENT_DIRECTORY 16
#define DOSERR_NOT_SAME_DEVICE 17
#define DOSERR_NO_MORE_FILES 18
/* Remains some classes used to access certain things */
#define sGet(s,m) GetIt(((s *)0)->m,(PhysPt)&(((s *)0)->m))
#define sSave(s,m,val) SaveIt(((s *)0)->m,(PhysPt)&(((s *)0)->m),val)
class MemStruct {
public:
INLINE Bit8u GetIt(Bit8u&,PhysPt addr) {
return mem_readb(pt+addr);
}
INLINE Bit16u GetIt(Bit16u&,PhysPt addr) {
return mem_readw(pt+addr);
}
INLINE Bit32u GetIt(Bit32u&,PhysPt addr) {
return mem_readd(pt+addr);
}
INLINE void SaveIt(Bit8u&,PhysPt addr,Bit8u val) {
mem_writeb(pt+addr,val);
}
INLINE void SaveIt(Bit16u&,PhysPt addr,Bit16u val) {
mem_writew(pt+addr,val);
}
INLINE void SaveIt(Bit32u&,PhysPt addr,Bit32u val) {
mem_writed(pt+addr,val);
}
INLINE void SetPt(Bit16u seg) { pt=PhysMake(seg,0);}
INLINE void SetPt(Bit16u seg,Bit16u off) { pt=PhysMake(seg,off);}
INLINE void SetPt(RealPt addr) { pt=Real2Phys(addr);}
protected:
PhysPt pt;
};
class DOS_PSP :public MemStruct {
public:
DOS_PSP (Bit16u segment) { SetPt(segment);seg=segment;};
void MakeNew (Bit16u memSize);
void CopyFileTable (DOS_PSP* srcpsp,bool createchildpsp);
Bit16u FindFreeFileEntry (void);
void CloseFiles (void);
void SaveVectors (void);
void RestoreVectors (void);
void SetSize (Bit16u size) { sSave(sPSP,next_seg,size); };
Bit16u GetSize (void) { return sGet(sPSP,next_seg); };
void SetEnvironment (Bit16u envseg) { sSave(sPSP,environment,envseg); };
Bit16u GetEnvironment (void) { return sGet(sPSP,environment); };
Bit16u GetSegment (void) { return seg; };
void SetFileHandle (Bit16u index, Bit8u handle);
Bit8u GetFileHandle (Bit16u index);
void SetParent (Bit16u parent) { sSave(sPSP,psp_parent,parent); };
Bit16u GetParent (void) { return sGet(sPSP,psp_parent); };
void SetStack (RealPt stackpt) { sSave(sPSP,stack,stackpt); };
RealPt GetStack (void) { return sGet(sPSP,stack); };
void SetInt22 (RealPt int22pt) { sSave(sPSP,int_22,int22pt); };
RealPt GetInt22 (void) { return sGet(sPSP,int_22); };
void SetFCB1 (RealPt src);
void SetFCB2 (RealPt src);
void SetCommandTail (RealPt src);
bool SetNumFiles (Bit16u fileNum);
Bit16u FindEntryByHandle (Bit8u handle);
private:
#ifdef _MSC_VER
#pragma pack(1)
#endif
struct sPSP {
Bit8u exit[2]; /* CP/M-like exit poimt */
Bit16u next_seg; /* Segment of first byte beyond memory allocated or program */
Bit8u fill_1; /* single char fill */
Bit8u far_call; /* far call opcode */
RealPt cpm_entry; /* CPM Service Request address*/
RealPt int_22; /* Terminate Address */
RealPt int_23; /* Break Address */
RealPt int_24; /* Critical Error Address */
Bit16u psp_parent; /* Parent PSP Segment */
Bit8u files[20]; /* File Table - 0xff is unused */
Bit16u environment; /* Segment of evironment table */
RealPt stack; /* SS:SP Save point for int 0x21 calls */
Bit16u max_files; /* Maximum open files */
RealPt file_table; /* Pointer to File Table PSP:0x18 */
RealPt prev_psp; /* Pointer to previous PSP */
Bit8u interim_flag;
Bit8u truename_flag;
Bit16u nn_flags;
Bit16u dos_version;
Bit8u fill_2[14]; /* Lot's of unused stuff i can't care aboue */
Bit8u service[3]; /* INT 0x21 Service call int 0x21;retf; */
Bit8u fill_3[9]; /* This has some blocks with FCB info */
Bit8u fcb1[16]; /* first FCB */
Bit8u fcb2[16]; /* second FCB */
Bit8u fill_4[4]; /* unused */
CommandTail cmdtail;
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack()
#endif
Bit16u seg;
public:
static Bit16u rootpsp;
};
class DOS_ParamBlock:public MemStruct {
public:
DOS_ParamBlock(PhysPt addr) {pt=addr;}
void Clear(void);
void LoadData(void);
void SaveData(void); /* Save it as an exec block */
#ifdef _MSC_VER
#pragma pack (1)
#endif
struct sOverlay {
Bit16u loadseg;
Bit16u relocation;
} GCC_ATTRIBUTE(packed);
struct sExec {
Bit16u envseg;
RealPt cmdtail;
RealPt fcb1;
RealPt fcb2;
RealPt initsssp;
RealPt initcsip;
}GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack()
#endif
sExec exec;
sOverlay overlay;
};
class DOS_InfoBlock:public MemStruct {
public:
DOS_InfoBlock () {};
void SetLocation(Bit16u seg);
void SetFirstMCB(Bit16u _first_mcb);
void SetfirstFileTable(RealPt _first_table);
void SetBuffers(Bit16u x,Bit16u y);
RealPt GetPointer (void);
#ifdef _MSC_VER
#pragma pack(1)
#endif
struct sDIB {
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
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
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
#pragma pack ()
#endif
Bit16u seg;
};
class DOS_DTA:public MemStruct{
public:
DOS_DTA(RealPt addr) { SetPt(addr); }
void SetupSearch(Bit8u _sdrive,Bit8u _sattr,char * _pattern);
void SetResult(const char * _name,Bit32u _size,Bit16u _date,Bit16u _time,Bit8u _attr);
Bit8u GetSearchDrive(void);
void GetSearchParams(Bit8u & _sattr,char * _spattern);
void GetResult(char * _name,Bit32u & _size,Bit16u & _date,Bit16u & _time,Bit8u & _attr);
void SetDirID(Bit16u entry) { sSave(sDTA,dirID,entry); };
Bit16u GetDirID(void) { return sGet(sDTA,dirID); };
private:
#ifdef _MSC_VER
#pragma pack(1)
#endif
struct sDTA {
Bit8u sdrive; /* The Drive the search is taking place */
Bit8u sname[8]; /* The Search pattern for the filename */
Bit8u sext[3]; /* The Search pattern for the extenstion */
Bit8u sattr; /* The Attributes that need to be found */
Bit16u dirID; /* custom: dir-search ID for multiple searches at the same time */
Bit8u fill[6];
Bit8u attr;
Bit16u time;
Bit16u date;
Bit32u size;
char name[DOS_NAMELENGTH_ASCII];
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack()
#endif
};
class DOS_FCB: public MemStruct {
public:
DOS_FCB(Bit16u seg,Bit16u off);
void Create(bool _extended);
void SetName(Bit8u _drive,char * _fname,char * _ext);
void SetSizeDateTime(Bit32u _size,Bit16u _date,Bit16u _time);
void GetSizeDateTime(Bit32u & _size,Bit16u & _date,Bit16u & _time);
void GetName(char * fillname);
void FileOpen(Bit8u _fhandle);
void FileClose(Bit8u & _fhandle);
void GetRecord(Bit16u & _cur_block,Bit8u & _cur_rec);
void SetRecord(Bit16u _cur_block,Bit8u _cur_rec);
void GetSeqData(Bit8u & _fhandle,Bit16u & _rec_size);
void GetRandom(Bit32u & _random);
void SetRandom(Bit32u _random);
Bit8u GetDrive(void);
bool Extended(void);
void GetAttr(Bit8u & attr);
void SetAttr(Bit8u attr);
private:
bool extended;
PhysPt real_pt;
#ifdef _MSC_VER
#pragma pack (1)
#endif
struct sFCB {
Bit8u drive; /* Drive number 0=default, 1=A, etc */
Bit8u filename[8]; /* Space padded name */
Bit8u ext[3]; /* Space padded extension */
Bit16u cur_block; /* Current Block */
Bit16u rec_size; /* Logical record size */
Bit32u filesize; /* File Size */
Bit16u date;
Bit16u time;
/* Reserved Block should be 8 bytes */
Bit8u sft_entries;
Bit8u share_attributes;
Bit8u extra_info;
Bit8u file_handle;
Bit8u reserved[4];
/* end */
Bit8u cur_rec; /* Current record in current block */
Bit32u rndm; /* Current relative record number */
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack ()
#endif
};
class DOS_MCB : public MemStruct{
public:
DOS_MCB(Bit16u seg) { SetPt(seg); }
void SetFileName(char * _name) { MEM_BlockWrite(pt+offsetof(sMCB,filename),_name,8); }
void GetFileName(char * _name) { MEM_BlockRead(pt+offsetof(sMCB,filename),_name,8);_name[8]=0;}
void SetType(Bit8u _type) { sSave(sMCB,type,_type);}
void SetSize(Bit16u _size) { sSave(sMCB,size,_size);}
void SetPSPSeg(Bit16u _pspseg) { sSave(sMCB,psp_segment,_pspseg);}
Bit8u GetType(void) { return sGet(sMCB,type);}
Bit16u GetSize(void) { return sGet(sMCB,size);}
Bit16u GetPSPSeg(void) { return sGet(sMCB,psp_segment);}
private:
#ifdef _MSC_VER
#pragma pack (1)
#endif
struct sMCB {
Bit8u type;
Bit16u psp_segment;
Bit16u size;
Bit8u unused[3];
Bit8u filename[8];
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack ()
#endif
};
extern Bit16u sdaseg;
#define DOS_SDA_SEG sdaseg
#define DOS_SDA_OFS 0
class DOS_SDA : public MemStruct {
public:
DOS_SDA(Bit16u _seg,Bit16u _offs) { SetPt(_seg,_offs); }
void Init();
void SetDrive(Bit8u _drive) { sSave(sSDA,current_drive, _drive); }
void SetDTA(Bit32u _dta) { sSave(sSDA,current_dta, _dta); }
void SetPSP(Bit16u _psp) { sSave(sSDA,current_psp, _psp); }
Bit8u GetDrive(void) { return sGet(sSDA,current_drive); }
Bit16u GetPSP(void) { return sGet(sSDA,current_psp); }
Bit32u GetDTA(void) { return sGet(sSDA,current_dta); }
private:
#ifdef _MSC_VER
#pragma pack (1)
#endif
struct sSDA {
Bit8u crit_error_flag; /* 0x00 Critical Error Flag */
Bit8u inDOS_flag; /* 0x01 InDOS flag (count of active INT 21 calls) */
Bit8u drive_crit_error; /* 0x02 Drive on which current critical error occurred or FFh */
Bit8u locus_of_last_error; /* 0x03 locus of last error */
Bit16u extended_error_code; /* 0x04 extended error code of last error */
Bit8u suggested_action; /* 0x06 suggested action for last error */
Bit8u error_class; /* 0x07 class of last error*/
Bit32u last_error_pointer; /* 0x08 ES:DI pointer for last error */
Bit32u current_dta; /* 0x0C current DTA (Disk Transfer Address) */
Bit16u current_psp; /* 0x10 current PSP */
Bit16u sp_int_23; /* 0x12 stores SP across an INT 23 */
Bit16u return_code; /* 0x14 return code from last process termination (zerod after reading with AH=4Dh) */
Bit8u current_drive; /* 0x16 current drive */
Bit8u extended_break_flag; /* 0x17 extended break flag */
Bit8u fill[2]; /* 0x18 flag: code page switching || flag: copy of previous byte in case of INT 24 Abort*/
} GCC_ATTRIBUTE(packed);
#ifdef _MSC_VER
#pragma pack()
#endif
};
extern DOS_InfoBlock dos_infoblock;
struct DOS_Block {
DOS_Date date;
DOS_Version version;
Bit16u firstMCB;
Bit16u errorcode;
Bit16u psp(){return DOS_SDA(DOS_SDA_SEG,DOS_SDA_OFS).GetPSP();};
void psp(Bit16u _seg){ DOS_SDA(DOS_SDA_SEG,DOS_SDA_OFS).SetPSP(_seg);};
Bit16u env;
RealPt cpmentry;
RealPt dta(){return DOS_SDA(DOS_SDA_SEG,DOS_SDA_OFS).GetDTA();};
void dta(RealPt _dta){DOS_SDA(DOS_SDA_SEG,DOS_SDA_OFS).SetDTA(_dta);};
Bit8u return_code,return_mode;
Bit8u current_drive;
bool verify;
bool breakcheck;
bool echo; // if set to true dev_con::read will echo input
struct {
RealPt mediaid;
RealPt tempdta;
} tables;
};
extern DOS_Block dos;
INLINE Bit8u RealHandle(Bit16u handle) {
DOS_PSP psp(dos.psp());
return psp.GetFileHandle(handle);
}
#endif
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