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[NTVDM]

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Implement INT 21h, AH = 34h (Get Address of InDOS Flag).


svn path=/trunk/; revision=67362
This commit is contained in:
Aleksandar Andrejevic 2015-04-23 01:17:11 +00:00
parent 91dfded93d
commit a8bc4cd508
1 changed files with 26 additions and 1 deletions
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27
reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c
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@ -31,6 +31,8 @@
/* PRIVATE VARIABLES **********************************************************/ /* PRIVATE VARIABLES **********************************************************/
#define INDOS_POINTER MAKELONG(0x00FE, 0x0070)
CALLBACK16 DosContext; CALLBACK16 DosContext;
static DWORD DiskTransferArea; static DWORD DiskTransferArea;
@ -39,6 +41,7 @@ static CHAR LastDrive = 'E';
static CHAR CurrentDirectories[NUM_DRIVES][DOS_DIR_LENGTH]; static CHAR CurrentDirectories[NUM_DRIVES][DOS_DIR_LENGTH];
static DOS_SFT_ENTRY DosSystemFileTable[DOS_SFT_SIZE]; static DOS_SFT_ENTRY DosSystemFileTable[DOS_SFT_SIZE];
static WORD DosErrorLevel = 0x0000; static WORD DosErrorLevel = 0x0000;
static PBYTE InDos;
/* PUBLIC VARIABLES ***********************************************************/ /* PUBLIC VARIABLES ***********************************************************/
@ -1369,6 +1372,8 @@ VOID WINAPI DosInt21h(LPWORD Stack)
PDOS_COUNTRY_CODE_BUFFER CountryCodeBuffer; PDOS_COUNTRY_CODE_BUFFER CountryCodeBuffer;
INT Return; INT Return;
(*InDos)++;
/* Check the value in the AH register */ /* Check the value in the AH register */
switch (getAH()) switch (getAH())
{ {
@ -1546,7 +1551,12 @@ VOID WINAPI DosInt21h(LPWORD Stack)
DosPrintCharacter(DOS_OUTPUT_HANDLE, '^'); DosPrintCharacter(DOS_OUTPUT_HANDLE, '^');
DosPrintCharacter(DOS_OUTPUT_HANDLE, 'C'); DosPrintCharacter(DOS_OUTPUT_HANDLE, 'C');
if (DosControlBreak()) return; if (DosControlBreak())
{
/* Set the character to a newline to exit the loop */
Character = '\r';
}
break; break;
} }
@ -1873,6 +1883,15 @@ VOID WINAPI DosInt21h(LPWORD Stack)
break; break;
} }
/* Get Address of InDOS flag */
case 0x34:
{
setES(HIWORD(INDOS_POINTER));
setBX(LOWORD(INDOS_POINTER));
break;
}
/* Get Interrupt Vector */ /* Get Interrupt Vector */
case 0x35: case 0x35:
{ {
@ -2895,6 +2914,8 @@ VOID WINAPI DosInt21h(LPWORD Stack)
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF; Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
} }
} }
(*InDos)--;
} }
VOID WINAPI DosBreakInterrupt(LPWORD Stack) VOID WINAPI DosBreakInterrupt(LPWORD Stack)
@ -2985,6 +3006,10 @@ BOOLEAN DosKRNLInitialize(VOID)
FILE *Stream; FILE *Stream;
WCHAR Buffer[256]; WCHAR Buffer[256];
/* Setup the InDOS flag */
InDos = (PBYTE)FAR_POINTER(INDOS_POINTER);
*InDos = 0;
/* Clear the current directory buffer */ /* Clear the current directory buffer */
RtlZeroMemory(CurrentDirectories, sizeof(CurrentDirectories)); RtlZeroMemory(CurrentDirectories, sizeof(CurrentDirectories));