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AX = 5DEBh BX = function 00h disable V86-mode trapping for specified port 01h enable V86-mode trapping for specified port 02h get V86-mode trapping state for specified port DX = port for which to enable/disable/query trapping
Return:
AH = status 00h successful BX = current trapping state (00h off, 01h on) (function 02) A7h invalid port ID A8h reserved port--cannot trap/untrap (DMA/INT/KBD controllers)
Notes: RM386 traps this function on the initial transition to protected mode caused by the INT instruction, which means it can not be overridden simply by hooking the interrupt
See Also: AX=5DEAh
Category: Memory Management - Int 67h - R
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