2 * DOS interrupt 26h handler
14 /**********************************************************************
17 * Handler for int 26h (absolute disk read).
19 void WINAPI
INT_Int26Handler( CONTEXT
*context
)
21 BYTE
*dataptr
= CTX_SEG_OFF_TO_LIN( context
, DS_reg(context
), EBX_reg(context
) );
24 if (!DRIVE_IsValid(AL_reg(context
)))
27 AX_reg(context
) = 0x0101; /* unknown unit */
31 if (CX_reg(context
) == 0xffff)
33 begin
= *(DWORD
*)dataptr
;
34 length
= *(WORD
*)(dataptr
+ 4);
35 dataptr
= (BYTE
*)CTX_SEG_OFF_TO_LIN( context
,
36 *(WORD
*)(dataptr
+ 8), *(DWORD
*)(dataptr
+ 6) );
40 begin
= DX_reg(context
);
41 length
= CX_reg(context
);
44 TRACE(int,"int26: abs diskwrite, drive %d, sector %ld, "
45 "count %ld, buffer %p\n",
46 AL_reg(context
), begin
, length
, dataptr
);
48 DRIVE_RawWrite(AL_reg(context
), begin
, length
, dataptr
, TRUE
);