mirror of
https://github.com/reactos/wine.git
synced 2024-11-26 05:00:30 +00:00
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
|
|
* DOS interrupt 26h handler
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include "msdos.h"
|
|
#include "ldt.h"
|
|
#include "miscemu.h"
|
|
#include "drive.h"
|
|
#include "debug.h"
|
|
|
|
/**********************************************************************
|
|
* INT_Int26Handler
|
|
*
|
|
* Handler for int 26h (absolute disk read).
|
|
*/
|
|
void WINAPI INT_Int26Handler( CONTEXT *context )
|
|
{
|
|
BYTE *dataptr = CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EBX_reg(context) );
|
|
DWORD begin, length;
|
|
|
|
if (!DRIVE_IsValid(AL_reg(context)))
|
|
{
|
|
SET_CFLAG(context);
|
|
AX_reg(context) = 0x0101; /* unknown unit */
|
|
return;
|
|
}
|
|
|
|
if (CX_reg(context) == 0xffff)
|
|
{
|
|
begin = *(DWORD *)dataptr;
|
|
length = *(WORD *)(dataptr + 4);
|
|
dataptr = (BYTE *)CTX_SEG_OFF_TO_LIN( context,
|
|
*(WORD *)(dataptr + 8), *(DWORD *)(dataptr + 6) );
|
|
}
|
|
else
|
|
{
|
|
begin = DX_reg(context);
|
|
length = CX_reg(context);
|
|
}
|
|
|
|
TRACE(int,"int26: abs diskwrite, drive %d, sector %ld, "
|
|
"count %ld, buffer %p\n",
|
|
AL_reg(context), begin, length, dataptr );
|
|
|
|
DRIVE_RawWrite(AL_reg(context), begin, length, dataptr, TRUE);
|
|
RESET_CFLAG(context);
|
|
}
|