INT 21 P - Phar Lap 386/DOS-Extender - GET EXCEPTION HANDLER VECTOR             
	AX = 2532h
	CL = exception number (00h-0Fh)
Return: CF clear if successful
	    ES:EBX = CS:EIP of current exception handler
	CF set on error (CL > 0Fh)
Notes:	this call is also supported by the FlashTek X-32VM extender
	this function is incompatible with 386|VMM; use AX=2522h instead
SeeAlso: AX=2522h,AX=2533h