Function 26, subfunction 7 - get HD base.
The HD base defines hard disk to write with usage of obsolete
file system functions and functions implicitly using the hard disk
(such as subfunction 6 of function 18);
at usage of function 58 and 70 and modern syntax /HD0,/HD1,/HD2,/HD3
these function set base themselves.
Parameters:
- eax = 26 - function number
- ebx = 7 - subfunction number
Returned value:
- eax = HD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
Remarks: