Category: DOS extenders
Flags: available only in protected mode

INT 31 - DPMI 0.9+ - RELOCK REAL MODE REGION

	AX = 0603h
	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 relocked
	    AX = error code (DPMI 1.0+) (8002h,8013h,8025h) (see #03143)
Notes:	pages at beginning and end will be relocked if the region overlaps them
	pageability of real mode pages is binary, not a count
SeeAlso: AX=0602h