Get Real Mode Interrupt Vector

Call With

AX = 0200H
BL = interrupt number

Returns

Carry flag = clear (this function always succeeds)
CX:DX = segment:offset of real mode interrupt handler

Notes

• The value returned in CX is a real mode segment address, not a selector. Attempts to place this value into a segment register in protected mode may cause a general protection (GP) fault.

• All 100H (256) real mode interrupt vectors must be made available through this function by the DPMI host.