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