Output: AL 33h (ISOLINUX)
DL drive number
CL 11 (sector size as a power of 2) [3.35]
+ CH mode [3.73]
+ 0 = El Torito
+ 1 = Hybrid (hard disk), CBIOS mode
+ 2 = Hybrid (hard disk), EBIOS mode
ES:BX pointer to El Torito spec packet
FS:SI pointer to initial ES:DI value [3.53]
This routine reports "boot failed" (and does not return) on
disk error.
+ Note: for ISOLINUX in hybrid mode, this call uses simulated
+ 2048-byte CD-ROM sector numbers.
+
AX=001Ah [3.50] Cleanup, shuffle and boot to flat protected mode
Input: AX 001Ah