Int 67/AX=5DE4h

RM386 - SET WRITE-PROTECTION FOR PAGE IN FIRST MEGABYTE

AX = 5DE4h
BL = page number
BH = access (00h read-only, 01h read-write)

Note: 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

Category: Memory Management - Int 67h - R

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