INT 2C P - RM386 v6.00 - CLOAKING - SET 8259 IRQ BASE VECTORS
        AX = 002Ah
        BL = base vector of master interrupt controller
        CL = base vector of slave interrupt controller
Note:   this call merely informs RM386 that the caller has changed the
          interrupt mappings
SeeAlso: INT 67/AX=DE0Bh

.