2 * DOS interrupt 26h handler
12 /* #define DEBUG_INT */
15 /**********************************************************************
18 * Handler for int 26h (absolute disk read).
20 void INT_Int26Handler( CONTEXT
*context
)
22 BYTE
*dataptr
= PTR_SEG_OFF_TO_LIN( DS_reg(context
), BX_reg(context
) );
25 if (!DRIVE_IsValid(AL_reg(context
)))
28 AX_reg(context
) = 0x0101; /* unknown unit */
32 if (CX_reg(context
) == 0xffff)
34 begin
= *(DWORD
*)dataptr
;
35 length
= *(WORD
*)(dataptr
+ 4);
36 dataptr
= (BYTE
*)PTR_SEG_TO_LIN( *(SEGPTR
*)(dataptr
+ 6) );
40 begin
= DX_reg(context
);
41 length
= CX_reg(context
);
44 dprintf_int( stdnimp
,"int26: abs diskwrite, drive %d, sector %ld, "
45 "count %ld, buffer %d\n",
46 AL_reg(context
), begin
, length
, (int) dataptr
);