Int 2F Fn AB03  - Srsoft Modal Pc V2+ - Allocate Common Memory             [-]

   AX = AB03h
   BX = required size of common memory for variables/semaphores in bytes

Return: AX = 5253h ('SR' byte-swapped) if installed

See Also: AX=AB00h"MODAL",AX=AB02h"MODAL",AX=AB04h"MODAL"