Int 31 Fn FF29 P - Causeway V1.3 - "getsels" - Allocate Multiple Selecto [E]
AX = FF29h
CX = number of selectors to allocate
Return: BX = base selector
Desc: allocate multiple contiguous selectors, initializing each to have a
base address and limit of zero
See Also: AX=FF00h,AX=FF04h