INT 31 P - DPMIsee DOS Protected-Mode Interface 0.9+ - GET STATE SAVE/RESTORE ADDRESSES
	AX = 0305h
Return: CF clear
	AX = size in bytes of state buffer
	BX:CX = real mode address of procedure to save/restore state
	SI:(E)DI = protected mode procedure to save/restore state (see #03150)
Notes:	the buffer size will be zero if it is not necessary to preserve state
	16-bit programs should call SI:DI, 32-bit programs should call SI:EDI
	this function is only needed if using the raw mode switch service
SeeAlso: AX=0306h


(Table 03150)
Call DPMIsee DOS Protected-Mode Interface state-save procedures with:
	AL = direction
	    00h save state
	    01h restore state
	ES:(E)DI -> state buffer
Return: all registers preserved