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310601

Category: DOS extenders
Flags: available only in protected mode

INT 31 - DPMI 0.9+ - UNLOCK LINEAR REGION

	AX = 0601h
	BX:CX = starting linear address
	SI:DI = size of region in bytes
Return: CF clear if successful
	CF set on error
	    none of the memory is unlocked
	    AX = error code (DPMI 1.0+) (8002h,8025h) (see #03143)
Notes:	pages at beginning and end will be unlocked if the region overlaps them
	memory whose lock count has not reached zero remains locked
SeeAlso: AX=0005h,AX=0600h,INT 21/AX=251Bh,INT 21/AX=EB07h

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