Function 26, subfunction 7 - get HD base.
The HD base defines hard disk to write with usage of obsolete
syntax /HD in obsolete function 58; at usage of modern syntax
/HD0,/HD1,/HD2,/HD3 base is set automatically.
Parameters:
- eax = 26 - function number
- ebx = 7 - subfunction number
Returned value:
- eax = HD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
Remarks: