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/*
* DOS interrupt 21h handler
*
* Copyright 1993, 1994 Erik Bos
* Copyright 1996 Alexandre Julliard
* Copyright 1997 Andreas Mohr
* Copyright 1998 Uwe Bonnes
* Copyright 1998, 1999 Ove Kaaven
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "wine/winbase16.h"
#include "dosexe.h"
#include "miscemu.h"
#include "msdos.h"
#include "file.h"
#include "task.h"
#include "winerror.h"
#include "winuser.h"
#include "wine/unicode.h"
#include "wine/debug.h"
/*
* FIXME: Delete this reference when all int21 code has been moved to winedos.
*/
extern void WINAPI INT_Int21Handler( CONTEXT86 *context );
WINE_DEFAULT_DEBUG_CHANNEL(int21);
#include "pshpack1.h"
/*
* Structure for DOS data that can be accessed directly from applications.
* Real and protected mode pointers will be returned to this structure so
* the structure must be correctly packed.
*/
typedef struct _INT21_HEAP {
WORD uppercase_size; /* Size of the following table in bytes */
BYTE uppercase_table[128]; /* Uppercase equivalents of chars from 0x80 to 0xff. */
WORD lowercase_size; /* Size of the following table in bytes */
BYTE lowercase_table[256]; /* Lowercase equivalents of chars from 0x00 to 0xff. */
WORD collating_size; /* Size of the following table in bytes */
BYTE collating_table[256]; /* Values used to sort characters from 0x00 to 0xff. */
WORD filename_size; /* Size of the following filename data in bytes */
BYTE filename_reserved1; /* 0x01 for MS-DOS 3.30-6.00 */
BYTE filename_lowest; /* Lowest permissible character value for filename */
BYTE filename_highest; /* Highest permissible character value for filename */
BYTE filename_reserved2; /* 0x00 for MS-DOS 3.30-6.00 */
BYTE filename_exclude_first; /* First illegal character in permissible range */
BYTE filename_exclude_last; /* Last illegal character in permissible range */
BYTE filename_reserved3; /* 0x02 for MS-DOS 3.30-6.00 */
BYTE filename_illegal_size; /* Number of terminators in the following table */
BYTE filename_illegal_table[16]; /* Characters which terminate a filename */
WORD dbcs_size; /* Number of valid ranges in the following table */
BYTE dbcs_table[16]; /* Start/end bytes for N ranges and 00/00 as terminator */
BYTE misc_indos; /* Interrupt 21 nesting flag */
} INT21_HEAP;
#include "poppack.h"
/***********************************************************************
* INT21_ReadChar
*
* Reads a character from the standard input.
* Extended keycodes will be returned as two separate characters.
*/
static BOOL INT21_ReadChar( BYTE *input, BOOL peek )
{
static BYTE pending_scan = 0;
if (pending_scan)
{
if (input)
*input = pending_scan;
if (!peek)
pending_scan = 0;
return TRUE;
}
else
{
BYTE ascii;
BYTE scan;
if (!DOSVM_Int16ReadChar( &ascii, &scan, peek ))
return FALSE;
if (input)
*input = ascii;
if (!peek && !ascii)
pending_scan = scan;
return TRUE;
}
}
/***********************************************************************
* INT21_GetSystemCountryCode
*
* Return DOS country code for default system locale.
*/
static WORD INT21_GetSystemCountryCode()
{
/*
* FIXME: Determine country code. We should probably use
* DOSCONF structure for that.
*/
return GetSystemDefaultLangID();
}
/***********************************************************************
* INT21_FillCountryInformation
*
* Fill 34-byte buffer with country information data using
* default system locale.
*/
static void INT21_FillCountryInformation( BYTE *buffer )
{
/* 00 - WORD: date format
* 00 = mm/dd/yy
* 01 = dd/mm/yy
* 02 = yy/mm/dd
*/
*(WORD*)(buffer + 0) = 0; /* FIXME: Get from locale */
/* 02 - BYTE[5]: ASCIIZ currency symbol string */
buffer[2] = '$'; /* FIXME: Get from locale */
buffer[3] = 0;
/* 07 - BYTE[2]: ASCIIZ thousands separator */
buffer[7] = 0; /* FIXME: Get from locale */
buffer[8] = 0;
/* 09 - BYTE[2]: ASCIIZ decimal separator */
buffer[9] = '.'; /* FIXME: Get from locale */
buffer[10] = 0;
/* 11 - BYTE[2]: ASCIIZ date separator */
buffer[11] = '/'; /* FIXME: Get from locale */
buffer[12] = 0;
/* 13 - BYTE[2]: ASCIIZ time separator */
buffer[13] = ':'; /* FIXME: Get from locale */
buffer[14] = 0;
/* 15 - BYTE: Currency format
* bit 2 = set if currency symbol replaces decimal point
* bit 1 = number of spaces between value and currency symbol
* bit 0 = 0 if currency symbol precedes value
* 1 if currency symbol follows value
*/
buffer[15] = 0; /* FIXME: Get from locale */
/* 16 - BYTE: Number of digits after decimal in currency */
buffer[16] = 0; /* FIXME: Get from locale */
/* 17 - BYTE: Time format
* bit 0 = 0 if 12-hour clock
* 1 if 24-hour clock
*/
buffer[17] = 1; /* FIXME: Get from locale */
/* 18 - DWORD: Address of case map routine */
*(DWORD*)(buffer + 18) = 0; /* FIXME: ptr to case map routine */
/* 22 - BYTE[2]: ASCIIZ data-list separator */
buffer[22] = ','; /* FIXME: Get from locale */
buffer[23] = 0;
/* 24 - BYTE[10]: Reserved */
memset( buffer + 24, 0, 10 );
}
/***********************************************************************
* INT21_FillHeap
*
* Initialize DOS heap.
*/
static void INT21_FillHeap( INT21_HEAP *heap )
{
static const char terminators[] = "\"\\./[]:|<>+=;,";
int i;
/*
* Uppercase table.
*/
heap->uppercase_size = 128;
for (i = 0; i < 128; i++)
heap->uppercase_table[i] = toupper( 128 + i );
/*
* Lowercase table.
*/
heap->lowercase_size = 256;
for (i = 0; i < 256; i++)
heap->lowercase_table[i] = tolower( i );
/*
* Collating table.
*/
heap->collating_size = 256;
for (i = 0; i < 256; i++)
heap->collating_table[i] = i;
/*
* Filename table.
*/
heap->filename_size = 8 + strlen(terminators);
heap->filename_illegal_size = strlen(terminators);
strcpy( heap->filename_illegal_table, terminators );
heap->filename_reserved1 = 0x01;
heap->filename_lowest = 0; /* FIXME: correct value? */
heap->filename_highest = 0xff; /* FIXME: correct value? */
heap->filename_reserved2 = 0x00;
heap->filename_exclude_first = 0x00; /* FIXME: correct value? */
heap->filename_exclude_last = 0x00; /* FIXME: correct value? */
heap->filename_reserved3 = 0x02;
/*
* DBCS lead byte table. This table is empty.
*/
heap->dbcs_size = 0;
memset( heap->dbcs_table, 0, sizeof(heap->dbcs_table) );
/*
* Initialize InDos flag.
*/
heap->misc_indos = 0;
}
/***********************************************************************
* INT21_GetHeapSelector
*
* Get segment/selector for DOS heap (INT21_HEAP).
* Creates and initializes heap on first call.
*/
static WORD INT21_GetHeapSelector( CONTEXT86 *context )
{
static WORD heap_segment = 0;
static WORD heap_selector = 0;
static BOOL heap_initialized = FALSE;
if (!heap_initialized)
{
INT21_HEAP *ptr = DOSVM_AllocDataUMB( sizeof(INT21_HEAP),
&heap_segment,
&heap_selector );
INT21_FillHeap( ptr );
heap_initialized = TRUE;
}
if (!ISV86(context) && DOSVM_IsWin16())
return heap_selector;
else
return heap_segment;
}
/***********************************************************************
* INT21_BufferedInput
*
* Handler for function 0x0a.
*
* Reads a string of characters from standard input until
* enter key is pressed.
*/
static void INT21_BufferedInput( CONTEXT86 *context )
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx);
BYTE capacity = ptr[0]; /* includes CR */
BYTE length = 0; /* excludes CR */
TRACE( "BUFFERED INPUT (size=%d)\n", capacity );
/*
* Return immediately if capacity is zero.
*
* FIXME: What to return to application?
*/
if (capacity == 0)
return;
/*
* FIXME: Some documents state that
* ptr[1] holds number of chars from last input which
* may be recalled on entry, other documents do not mention
* this at all.
*/
if (ptr[1])
TRACE( "Handle old chars in buffer!\n" );
while(TRUE)
{
BYTE ascii;
BYTE scan;
DOSVM_Int16ReadChar( &ascii, &scan, FALSE );
if (ascii == '\r' || ascii == '\n')
{
/*
* FIXME: What should be echoed here?
*/
DOSVM_PutChar( '\r' );
DOSVM_PutChar( '\n' );
ptr[1] = length;
ptr[2 + length] = '\r';
return;
}
/*
* FIXME: This function is supposed to support
* DOS editing keys...
*/
/*
* If the buffer becomes filled to within one byte of
* capacity, DOS rejects all further characters up to,
* but not including, the terminating carriage return.
*/
if (ascii != 0 && length < capacity-1)
{
DOSVM_PutChar( ascii );
ptr[2 + length] = ascii;
length++;
}
}
}
/***********************************************************************
* INT21_ExtendedCountryInformation
*
* Handler for function 0x65.
*/
static void INT21_ExtendedCountryInformation( CONTEXT86 *context )
{
BYTE *dataptr = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
TRACE( "GET EXTENDED COUNTRY INFORMATION, subfunction %02x\n",
AL_reg(context) );
/*
* Check subfunctions that are passed country and code page.
*/
if (AL_reg(context) >= 0x01 && AL_reg(context) <= 0x07)
{
WORD country = DX_reg(context);
WORD codepage = BX_reg(context);
if (country != 0xffff && country != INT21_GetSystemCountryCode())
FIXME( "Requested info on non-default country %04x\n", country );
if (codepage != 0xffff && codepage != GetOEMCP())
FIXME( "Requested info on non-default code page %04x\n", codepage );
}
switch (AL_reg(context)) {
case 0x00: /* SET GENERAL INTERNATIONALIZATION INFO */
INT_BARF( context, 0x21 );
SET_CFLAG( context );
break;
case 0x01: /* GET GENERAL INTERNATIONALIZATION INFO */
TRACE( "Get general internationalization info\n" );
dataptr[0] = 0x01; /* Info ID */
*(WORD*)(dataptr+1) = 38; /* Size of the following info */
*(WORD*)(dataptr+3) = INT21_GetSystemCountryCode(); /* Country ID */
*(WORD*)(dataptr+5) = GetOEMCP(); /* Code page */
INT21_FillCountryInformation( dataptr + 7 );
SET_CX( context, 41 ); /* Size of returned info */
break;
case 0x02: /* GET POINTER TO UPPERCASE TABLE */
case 0x04: /* GET POINTER TO FILENAME UPPERCASE TABLE */
TRACE( "Get pointer to uppercase table\n" );
dataptr[0] = AL_reg(context); /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, uppercase_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x03: /* GET POINTER TO LOWERCASE TABLE */
TRACE( "Get pointer to lowercase table\n" );
dataptr[0] = 0x03; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, lowercase_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x05: /* GET POINTER TO FILENAME TERMINATOR TABLE */
TRACE("Get pointer to filename terminator table\n");
dataptr[0] = 0x05; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, filename_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x06: /* GET POINTER TO COLLATING SEQUENCE TABLE */
TRACE("Get pointer to collating sequence table\n");
dataptr[0] = 0x06; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, collating_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x07: /* GET POINTER TO DBCS LEAD BYTE TABLE */
TRACE("Get pointer to DBCS lead byte table\n");
dataptr[0] = 0x07; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, dbcs_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x20: /* CAPITALIZE CHARACTER */
case 0xa0: /* CAPITALIZE FILENAME CHARACTER */
TRACE("Convert char to uppercase\n");
SET_DL( context, toupper(DL_reg(context)) );
break;
case 0x21: /* CAPITALIZE STRING */
case 0xa1: /* CAPITALIZE COUNTED FILENAME STRING */
TRACE("Convert string to uppercase with length\n");
{
char *ptr = (char *)CTX_SEG_OFF_TO_LIN( context,
context->SegDs,
context->Edx );
WORD len = CX_reg(context);
while (len--) { *ptr = toupper(*ptr); ptr++; }
}
break;
case 0x22: /* CAPITALIZE ASCIIZ STRING */
case 0xa2: /* CAPITALIZE ASCIIZ FILENAME */
TRACE("Convert ASCIIZ string to uppercase\n");
_strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx) );
break;
case 0x23: /* DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE */
INT_BARF( context, 0x21 );
SET_CFLAG( context );
break;
default:
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
}
}
/***********************************************************************
* INT21_FileDateTime
*
* Handler for function 0x57.
*/
static BOOL INT21_FileDateTime( CONTEXT86 *context )
{
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
FILETIME filetime;
WORD date, time;
switch (AL_reg(context)) {
case 0x00: /* Get last-written stamp */
TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, NULL, NULL, &filetime ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
break;
}
case 0x01: /* Set last-written stamp */
TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
BX_reg(context) );
{
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, NULL, NULL, &filetime ))
return FALSE;
break;
}
case 0x04: /* Get last access stamp, DOS 7 */
TRACE( "GET FILE LAST ACCESS DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, NULL, &filetime, NULL ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
break;
}
case 0x05: /* Set last access stamp, DOS 7 */
TRACE( "SET FILE LAST ACCESS DATE AND TIME, handle %d\n",
BX_reg(context) );
{
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, NULL, &filetime, NULL ))
return FALSE;
break;
}
case 0x06: /* Get creation stamp, DOS 7 */
TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, &filetime, NULL, NULL ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
/*
* FIXME: SI has number of 10-millisecond units past time in CX.
*/
SET_SI( context, 0 );
break;
}
case 0x07: /* Set creation stamp, DOS 7 */
TRACE( "SET FILE CREATION DATE AND TIME, handle %d\n",
BX_reg(context) );
{
/*
* FIXME: SI has number of 10-millisecond units past time in CX.
*/
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, &filetime, NULL, NULL ))
return FALSE;
break;
}
default:
INT_BARF( context, 0x21 );
break;
}
return TRUE;
}
/***********************************************************************
* INT21_GetPSP
*
* Handler for functions 0x51 and 0x62.
*/
static void INT21_GetPSP( CONTEXT86 *context )
{
TRACE( "GET CURRENT PSP ADDRESS (%02x)\n", AH_reg(context) );
/*
* FIXME: should we return the original DOS PSP upon
* Windows startup ?
*/
if (!ISV86(context) && DOSVM_IsWin16())
SET_BX( context, LOWORD(GetCurrentPDB16()) );
else
SET_BX( context, DOSVM_psp );
}
/***********************************************************************
* INT21_Ioctl_Block
*
* Handler for block device IOCTLs.
*/
static void INT21_Ioctl_Block( CONTEXT86 *context )
{
INT_Int21Handler( context );
}
/***********************************************************************
* INT21_Ioctl_Char
*
* Handler for character device IOCTLs.
*/
static void INT21_Ioctl_Char( CONTEXT86 *context )
{
static const WCHAR emmxxxx0W[] = {'E','M','M','X','X','X','X','0',0};
static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
const DOS_DEVICE *dev = DOSFS_GetDeviceByHandle(handle);
if (dev && !strcmpiW( dev->name, emmxxxx0W ))
{
EMS_Ioctl_Handler(context);
return;
}
if (dev && !strcmpiW( dev->name, scsimgrW ) && AL_reg(context) == 2)
{
DOSVM_ASPIHandler(context);
return;
}
INT_Int21Handler( context );
}
/***********************************************************************
* INT21_Ioctl
*
* Handler for function 0x44.
*/
static void INT21_Ioctl( CONTEXT86 *context )
{
switch (AL_reg(context))
{
case 0x00:
case 0x01:
case 0x02:
case 0x03:
INT21_Ioctl_Char( context );
break;
case 0x04:
case 0x05:
INT21_Ioctl_Block( context );
break;
case 0x06:
case 0x07:
INT21_Ioctl_Char( context );
break;
case 0x08:
case 0x09:
INT21_Ioctl_Block( context );
break;
case 0x0a:
INT21_Ioctl_Char( context );
break;
case 0x0b: /* SET SHARING RETRY COUNT */
TRACE( "SET SHARING RETRY COUNT: Pause %d, retries %d.\n",
CX_reg(context), DX_reg(context) );
if (!CX_reg(context))
{
SET_AX( context, 1 );
SET_CFLAG( context );
}
else
{
DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
if (DX_reg(context))
DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
RESET_CFLAG( context );
}
break;
case 0x0c:
INT21_Ioctl_Char( context );
break;
case 0x0d:
case 0x0e:
case 0x0f:
INT21_Ioctl_Block( context );
break;
case 0x10:
INT21_Ioctl_Char( context );
break;
case 0x11:
INT21_Ioctl_Block( context );
break;
case 0x12: /* DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION) */
TRACE( "DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION)\n" );
SET_CFLAG(context); /* Error / This is not DR DOS. */
SET_AX( context, 0x0001 ); /* Invalid function */
break;
case 0x52: /* DR DOS - DETERMINE DOS TYPE */
TRACE( "DR DOS - DETERMINE DOS TYPE\n" );
SET_CFLAG(context); /* Error / This is not DR DOS. */
SET_AX( context, 0x0001 ); /* Invalid function */
break;
case 0xe0: /* Sun PC-NFS API */
TRACE( "Sun PC-NFS API\n" );
/* not installed */
break;
default:
INT_BARF( context, 0x21 );
}
}
/***********************************************************************
* INT21_GetExtendedError
*/
static void INT21_GetExtendedError( CONTEXT86 *context )
{
BYTE class, action, locus;
WORD error = GetLastError();
switch(error)
{
case ERROR_SUCCESS:
class = action = locus = 0;
break;
case ERROR_DIR_NOT_EMPTY:
class = EC_Exists;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_ACCESS_DENIED:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_CANNOT_MAKE:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_DISK_FULL:
case ERROR_HANDLE_DISK_FULL:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_EXISTS:
case ERROR_ALREADY_EXISTS:
class = EC_Exists;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_GeneralFailure:
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_INVALID_DRIVE:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_INVALID_HANDLE:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_LOCK_VIOLATION:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_NO_MORE_FILES:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_NoNetwork:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Network;
break;
case ERROR_NOT_ENOUGH_MEMORY:
class = EC_OutOfResource;
action = SA_Abort;
locus = EL_Memory;
break;
case ERROR_PATH_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_SEEK:
class = EC_NotFound;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_SHARING_VIOLATION:
class = EC_Temporary;
action = SA_Retry;
locus = EL_Disk;
break;
case ERROR_TOO_MANY_OPEN_FILES:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
default:
FIXME("Unknown error %d\n", error );
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
}
TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
error, class, action, locus );
SET_AX( context, error );
SET_BH( context, class );
SET_BL( context, action );
SET_CH( context, locus );
}
/***********************************************************************
* DOSVM_Int21Handler
*
* Interrupt 0x21 handler.
*/
void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
{
BOOL bSetDOSExtendedError = FALSE;
TRACE( "AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context),
CX_reg(context), DX_reg(context),
SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags );
/*
* Extended error is used by (at least) functions 0x2f to 0x62.
* Function 0x59 returns extended error and error should not
* be cleared before handling the function.
*/
if (AH_reg(context) >= 0x2f && AH_reg(context) != 0x59)
SetLastError(0);
RESET_CFLAG(context); /* Not sure if this is a good idea. */
switch(AH_reg(context))
{
case 0x00: /* TERMINATE PROGRAM */
TRACE("TERMINATE PROGRAM\n");
if (DOSVM_IsWin16())
ExitThread( 0 );
else
MZ_Exit( context, FALSE, 0 );
break;
case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
{
BYTE ascii;
TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
INT21_ReadChar( &ascii, FALSE );
SET_AL( context, ascii );
/*
* FIXME: What to echo when extended keycodes are read?
*/
DOSVM_PutChar(AL_reg(context));
}
break;
case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
TRACE("Write Character to Standard Output\n");
DOSVM_PutChar(DL_reg(context));
break;
case 0x03: /* READ CHARACTER FROM STDAUX */
case 0x04: /* WRITE CHARACTER TO STDAUX */
case 0x05: /* WRITE CHARACTER TO PRINTER */
INT_BARF( context, 0x21 );
break;
case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
if (DL_reg(context) == 0xff)
{
TRACE("Direct Console Input\n");
if (INT21_ReadChar( NULL, TRUE ))
{
BYTE ascii;
INT21_ReadChar( &ascii, FALSE );
SET_AL( context, ascii );
RESET_ZFLAG( context );
}
else
{
/* no character available */
SET_AL( context, 0 );
SET_ZFLAG( context );
}
}
else
{
TRACE("Direct Console Output\n");
DOSVM_PutChar(DL_reg(context));
/*
* At least DOS versions 2.1-7.0 return character
* that was written in AL register.
*/
SET_AL( context, DL_reg(context) );
}
break;
case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
{
BYTE ascii;
TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
INT21_ReadChar( &ascii, FALSE );
SET_AL( context, ascii );
}
break;
case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
{
BYTE ascii;
TRACE("CHARACTER INPUT WITHOUT ECHO\n");
INT21_ReadChar( &ascii, FALSE );
SET_AL( context, ascii );
}
break;
case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
context->SegDs, DX_reg(context) );
{
LPSTR data = CTX_SEG_OFF_TO_LIN( context,
context->SegDs, context->Edx );
LPSTR p = data;
/*
* Do NOT use strchr() to calculate the string length,
* as '\0' is valid string content, too!
* Maybe we should check for non-'$' strings, but DOS doesn't.
*/
while (*p != '$') p++;
if (DOSVM_IsWin16())
WriteFile( DosFileHandleToWin32Handle(1),
data, p - data, 0, 0 );
else
for(; data != p; data++)
DOSVM_PutChar( *data );
SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
}
break;
case 0x0a: /* BUFFERED INPUT */
INT21_BufferedInput( context );
break;
case 0x0b: /* GET STDIN STATUS */
TRACE( "GET STDIN STATUS\n" );
{
if (INT21_ReadChar( NULL, TRUE ))
SET_AL( context, 0xff ); /* character available */
else
SET_AL( context, 0 ); /* no character available */
}
break;
case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
{
BYTE al = AL_reg(context); /* Input function to execute after flush. */
TRACE( "FLUSH BUFFER AND READ STANDARD INPUT - 0x%02x\n", al );
/* FIXME: buffers are not flushed */
/*
* If AL is one of 0x01, 0x06, 0x07, 0x08, or 0x0a,
* int21 function identified by AL will be called.
*/
if(al == 0x01 || al == 0x06 || al == 0x07 || al == 0x08 || al == 0x0a)
{
SET_AH( context, al );
DOSVM_Int21Handler( context );
}
}
break;
case 0x0d: /* DISK BUFFER FLUSH */
TRACE("DISK BUFFER FLUSH ignored\n");
break;
case 0x0e: /* SELECT DEFAULT DRIVE */
INT_Int21Handler( context );
break;
case 0x0f: /* OPEN FILE USING FCB */
case 0x10: /* CLOSE FILE USING FCB */
INT_BARF( context, 0x21 );
break;
case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
INT_Int21Handler( context );
break;
case 0x13: /* DELETE FILE USING FCB */
case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
case 0x17: /* RENAME FILE USING FCB */
INT_BARF( context, 0x21 );
break;
case 0x18: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x19: /* GET CURRENT DEFAULT DRIVE */
INT_Int21Handler( context );
break;
case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
TRACE( "SET DISK TRANSFER AREA ADDRESS %04lX:%04X\n",
context->SegDs, DX_reg(context) );
{
TDB *task = GlobalLock16( GetCurrentTask() );
task->dta = MAKESEGPTR( context->SegDs, DX_reg(context) );
}
break;
case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
INT_Int21Handler( context );
break;
case 0x1d: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
case 0x1e: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
INT_Int21Handler( context );
break;
case 0x20: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
case 0x23: /* GET FILE SIZE FOR FCB */
case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
INT_BARF( context, 0x21 );
break;
case 0x25: /* SET INTERRUPT VECTOR */
TRACE("SET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 ptr = (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context) );
if (!ISV86(context) && DOSVM_IsWin16())
DOSVM_SetPMHandler16( AL_reg(context), ptr );
else
DOSVM_SetRMHandler( AL_reg(context), ptr );
}
break;
case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
INT_BARF( context, 0x21 );
break;
case 0x29: /* PARSE FILENAME INTO FCB */
INT_Int21Handler( context );
break;
case 0x2a: /* GET SYSTEM DATE */
TRACE( "GET SYSTEM DATE\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CX( context, systime.wYear );
SET_DH( context, systime.wMonth );
SET_DL( context, systime.wDay );
SET_AL( context, systime.wDayOfWeek );
}
break;
case 0x2b: /* SET SYSTEM DATE */
FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
DL_reg(context), DH_reg(context), CX_reg(context) );
SET_AL( context, 0 ); /* Let's pretend we succeeded */
break;
case 0x2c: /* GET SYSTEM TIME */
TRACE( "GET SYSTEM TIME\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CH( context, systime.wHour );
SET_CL( context, systime.wMinute );
SET_DH( context, systime.wSecond );
SET_DL( context, systime.wMilliseconds / 10 );
}
break;
case 0x2d: /* SET SYSTEM TIME */
FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context) );
SET_AL( context, 0 ); /* Let's pretend we succeeded */
break;
case 0x2e: /* SET VERIFY FLAG */
TRACE("SET VERIFY FLAG ignored\n");
/* we cannot change the behaviour anyway, so just ignore it */
break;
case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
TRACE( "GET DISK TRANSFER AREA ADDRESS\n" );
{
TDB *task = GlobalLock16( GetCurrentTask() );
context->SegEs = SELECTOROF( task->dta );
SET_BX( context, OFFSETOF( task->dta ) );
}
break;
case 0x30: /* GET DOS VERSION */
TRACE( "GET DOS VERSION - %s requested\n",
(AL_reg(context) == 0x00) ? "OEM number" : "version flag" );
SET_AL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major version */
SET_AH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor version */
if (AL_reg(context) == 0x00)
SET_BH( context, 0xff ); /* OEM number => undefined */
else
SET_BH( context, 0x08 ); /* version flag => DOS is in ROM */
SET_BL( context, 0x12 ); /* 0x123456 is Wine's serial # */
SET_CX( context, 0x3456 );
break;
case 0x31: /* TERMINATE AND STAY RESIDENT */
FIXME("TERMINATE AND STAY RESIDENT stub\n");
break;
case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
case 0x33: /* MULTIPLEXED */
INT_Int21Handler( context );
break;
case 0x34: /* GET ADDRESS OF INDOS FLAG */
TRACE( "GET ADDRESS OF INDOS FLAG\n" );
context->SegEs = INT21_GetHeapSelector( context );
SET_BX( context, offsetof(INT21_HEAP, misc_indos) );
break;
case 0x35: /* GET INTERRUPT VECTOR */
TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 addr;
if (!ISV86(context) && DOSVM_IsWin16())
addr = DOSVM_GetPMHandler16( AL_reg(context) );
else
addr = DOSVM_GetRMHandler( AL_reg(context) );
context->SegEs = SELECTOROF(addr);
SET_BX( context, OFFSETOF(addr) );
}
break;
case 0x36: /* GET FREE DISK SPACE */
INT_Int21Handler( context );
break;
case 0x37: /* SWITCHAR */
{
switch (AL_reg(context))
{
case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
TRACE( "SWITCHAR - GET SWITCH CHARACTER\n" );
SET_AL( context, 0x00 ); /* success*/
SET_DL( context, '/' );
break;
case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
FIXME( "SWITCHAR - SET SWITCH CHARACTER: %c\n",
DL_reg( context ));
SET_AL( context, 0x00 ); /* success*/
break;
default:
INT_BARF( context, 0x21 );
break;
}
}
break;
case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
TRACE( "GET COUNTRY-SPECIFIC INFORMATION\n" );
if (AL_reg(context))
{
WORD country = AL_reg(context);
if (country == 0xff)
country = BX_reg(context);
if (country != INT21_GetSystemCountryCode())
FIXME( "Requested info on non-default country %04x\n", country );
}
INT21_FillCountryInformation( CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx) );
SET_AX( context, INT21_GetSystemCountryCode() );
SET_BX( context, INT21_GetSystemCountryCode() );
break;
case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
case 0x3e: /* "CLOSE" - CLOSE FILE */
case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
INT_Int21Handler( context );
break;
case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
TRACE( "WRITE from %04lX:%04X to handle %d for %d byte\n",
context->SegDs, DX_reg(context),
BX_reg(context), CX_reg(context) );
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (!DOSVM_IsWin16() && BX_reg(context) == 1)
{
int i;
for(i=0; i<CX_reg(context); i++)
DOSVM_PutChar(ptr[i]);
SET_AX(context, CX_reg(context));
}
else
{
HFILE handle = (HFILE)DosFileHandleToWin32Handle(BX_reg(context));
LONG result = _hwrite( handle, ptr, CX_reg(context) );
if (result == HFILE_ERROR)
bSetDOSExtendedError = TRUE;
else
SET_AX( context, (WORD)result );
}
}
break;
case 0x41: /* "UNLINK" - DELETE FILE */
case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
case 0x43: /* FILE ATTRIBUTES */
INT_Int21Handler( context );
break;
case 0x44: /* IOCTL */
INT21_Ioctl( context );
break;
case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
TRACE( "DUPLICATE FILE HANDLE %d\n", BX_reg(context) );
{
HANDLE handle32;
HFILE handle16 = HFILE_ERROR;
if (DuplicateHandle( GetCurrentProcess(),
DosFileHandleToWin32Handle(BX_reg(context)),
GetCurrentProcess(),
&handle32,
0, TRUE, DUPLICATE_SAME_ACCESS ))
handle16 = Win32HandleToDosFileHandle(handle32);
if (handle16 == HFILE_ERROR)
bSetDOSExtendedError = TRUE;
else
SET_AX( context, handle16 );
}
break;
case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
INT_Int21Handler( context );
break;
case 0x48: /* ALLOCATE MEMORY */
TRACE( "ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context) );
{
WORD selector = 0;
DWORD bytes = (DWORD)BX_reg(context) << 4;
if (!ISV86(context) && DOSVM_IsWin16())
{
DWORD rv = GlobalDOSAlloc16( bytes );
selector = LOWORD( rv );
}
else
DOSMEM_GetBlock( bytes, &selector );
if (selector)
SET_AX( context, selector );
else
{
SET_CFLAG(context);
SET_AX( context, 0x0008 ); /* insufficient memory */
SET_BX( context, DOSMEM_Available() >> 4 );
}
}
break;
case 0x49: /* FREE MEMORY */
TRACE( "FREE MEMORY segment %04lX\n", context->SegEs );
{
BOOL ok;
if (!ISV86(context) && DOSVM_IsWin16())
{
ok = !GlobalDOSFree16( context->SegEs );
/* If we don't reset ES_reg, we will fail in the relay code */
if (ok)
context->SegEs = 0;
}
else
ok = DOSMEM_FreeBlock( (void*)((DWORD)context->SegEs << 4) );
if (!ok)
{
TRACE("FREE MEMORY failed\n");
SET_CFLAG(context);
SET_AX( context, 0x0009 ); /* memory block address invalid */
}
}
break;
case 0x4a: /* RESIZE MEMORY BLOCK */
INT_Int21Handler( context );
break;
case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
{
BYTE *program = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
BYTE *paramblk = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
TRACE( "EXEC %s\n", program );
if (DOSVM_IsWin16())
{
HINSTANCE16 instance = WinExec16( program, SW_NORMAL );
if (instance < 32)
{
SET_CFLAG( context );
SET_AX( context, instance );
}
}
else
{
if (!MZ_Exec( context, program, AL_reg(context), paramblk))
bSetDOSExtendedError = TRUE;
}
}
break;
case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
TRACE( "EXIT with return code %d\n", AL_reg(context) );
if (DOSVM_IsWin16())
ExitThread( AL_reg(context) );
else
MZ_Exit( context, FALSE, AL_reg(context) );
break;
case 0x4d: /* GET RETURN CODE */
TRACE("GET RETURN CODE (ERRORLEVEL)\n");
SET_AX( context, DOSVM_retval );
DOSVM_retval = 0;
break;
case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
INT_Int21Handler( context );
break;
case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
DOSVM_psp = BX_reg(context);
break;
case 0x51: /* GET PSP ADDRESS */
INT21_GetPSP( context );
break;
case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
if (!ISV86(context) && DOSVM_IsWin16())
{
SEGPTR ptr = DOSMEM_LOL()->wine_pm_lol;
context->SegEs = SELECTOROF(ptr);
SET_BX( context, OFFSETOF(ptr) );
}
else
{
SEGPTR ptr = DOSMEM_LOL()->wine_rm_lol;
context->SegEs = SELECTOROF(ptr);
SET_BX( context, OFFSETOF(ptr) );
}
break;
case 0x54: /* Get Verify Flag */
TRACE("Get Verify Flag - Not Supported\n");
SET_AL( context, 0x00 ); /* pretend we can tell. 00h = off 01h = on */
break;
case 0x56: /* "RENAME" - RENAME FILE */
INT_Int21Handler( context );
break;
case 0x57: /* FILE DATE AND TIME */
if (!INT21_FileDateTime( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x58: /* GET OR SET MEMORY ALLOCATION STRATEGY */
switch (AL_reg(context))
{
case 0x00: /* GET MEMORY ALLOCATION STRATEGY */
TRACE( "GET MEMORY ALLOCATION STRATEGY\n" );
SET_AX( context, 0 ); /* low memory first fit */
break;
case 0x01: /* SET ALLOCATION STRATEGY */
TRACE( "SET MEMORY ALLOCATION STRATEGY to %d - ignored\n",
BL_reg(context) );
break;
case 0x02: /* GET UMB LINK STATE */
TRACE( "GET UMB LINK STATE\n" );
SET_AL( context, 0 ); /* UMBs not part of DOS memory chain */
break;
case 0x03: /* SET UMB LINK STATE */
TRACE( "SET UMB LINK STATE to %d - ignored\n",
BX_reg(context) );
break;
default:
INT_BARF( context, 0x21 );
}
break;
case 0x59: /* GET EXTENDED ERROR INFO */
INT21_GetExtendedError( context );
break;
case 0x5a: /* CREATE TEMPORARY FILE */
case 0x5b: /* CREATE NEW FILE */
INT_Int21Handler( context );
break;
case 0x5c: /* "FLOCK" - RECORD LOCKING */
{
DWORD offset = MAKELONG(DX_reg(context), CX_reg(context));
DWORD length = MAKELONG(DI_reg(context), SI_reg(context));
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
switch (AL_reg(context))
{
case 0x00: /* LOCK */
TRACE( "lock handle %d offset %ld length %ld\n",
BX_reg(context), offset, length );
if (!LockFile( handle, offset, 0, length, 0 ))
bSetDOSExtendedError = TRUE;
break;
case 0x01: /* UNLOCK */
TRACE( "unlock handle %d offset %ld length %ld\n",
BX_reg(context), offset, length );
if (!UnlockFile( handle, offset, 0, length, 0 ))
bSetDOSExtendedError = TRUE;
break;
default:
INT_BARF( context, 0x21 );
}
}
break;
case 0x5d: /* NETWORK 5D */
FIXME( "Network function 5D not implemented.\n" );
SetLastError( ER_NoNetwork );
bSetDOSExtendedError = TRUE;
break;
case 0x5e: /* NETWORK 5E */
case 0x5f: /* NETWORK 5F */
case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
INT_Int21Handler( context );
break;
case 0x61: /* UNUSED */
SET_AL( context, 0 );
break;
case 0x62: /* GET PSP ADDRESS */
INT21_GetPSP( context );
break;
case 0x63: /* MISC. LANGUAGE SUPPORT */
switch (AL_reg(context)) {
case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
TRACE( "GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE\n" );
context->SegDs = INT21_GetHeapSelector( context );
SET_SI( context, offsetof(INT21_HEAP, dbcs_table) );
SET_AL( context, 0 ); /* success */
break;
}
break;
case 0x64: /* OS/2 DOS BOX */
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
case 0x65: /* EXTENDED COUNTRY INFORMATION */
INT21_ExtendedCountryInformation( context );
break;
case 0x66: /* GLOBAL CODE PAGE TABLE */
switch (AL_reg(context))
{
case 0x01:
TRACE( "GET GLOBAL CODE PAGE TABLE\n" );
SET_BX( context, GetOEMCP() );
SET_DX( context, GetOEMCP() );
break;
case 0x02:
FIXME( "SET GLOBAL CODE PAGE TABLE, active %d, system %d - ignored\n",
BX_reg(context), DX_reg(context) );
break;
}
break;
case 0x67: /* SET HANDLE COUNT */
TRACE( "SET HANDLE COUNT to %d\n", BX_reg(context) );
if (SetHandleCount( BX_reg(context) ) < BX_reg(context) )
bSetDOSExtendedError = TRUE;
break;
case 0x68: /* "FFLUSH" - COMMIT FILE */
TRACE( "FFLUSH - handle %d\n", BX_reg(context) );
if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
bSetDOSExtendedError = TRUE;
break;
case 0x69: /* DISK SERIAL NUMBER */
INT_Int21Handler( context );
break;
case 0x6a: /* COMMIT FILE */
TRACE( "COMMIT FILE - handle %d\n", BX_reg(context) );
if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
bSetDOSExtendedError = TRUE;
break;
case 0x6b: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x6c: /* EXTENDED OPEN/CREATE */
INT_Int21Handler( context );
break;
case 0x70: /* MSDOS 7 - GET/SET INTERNATIONALIZATION INFORMATION */
FIXME( "MS-DOS 7 - GET/SET INTERNATIONALIZATION INFORMATION\n" );
SET_CFLAG( context );
SET_AL( context, 0 );
break;
case 0x71: /* MSDOS 7 - LONG FILENAME FUNCTIONS */
INT_Int21Handler( context );
break;
case 0x73: /* MSDOS7 - FAT32 */
INT_Int21Handler( context );
break;
case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
TRACE( "CONNECTION SERVICES - GET CONNECTION NUMBER - ignored\n" );
break;
case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
TRACE( "NOVELL NETWARE - RETURN SHELL VERSION - ignored\n" );
break;
default:
INT_BARF( context, 0x21 );
break;
} /* END OF SWITCH */
/* Set general error condition. */
if (bSetDOSExtendedError)
{
SET_AX( context, GetLastError() );
SET_CFLAG( context );
}
/* Print error code if carry flag is set. */
if (context->EFlags & 0x0001)
TRACE("failed, error %ld\n", GetLastError() );
TRACE( "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context),
CX_reg(context), DX_reg(context),
SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags );
}
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