INT 15 - VMiX - "sys_virtual" - EXECUTE CONFORMING FUNCTION IN PROTECTED MODE
	AH = 10h
	STACK:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to function
	      N WORDs	function args
Return: AX = function's return value??? (not specified in documentation)
Note:	while the function is executing, the following global descriptors are
	  available:
		20h stack segment
		38h code segment of function
		40h data alias for function's code segment
	  additional GDT descriptors can be allocated using AH=02h with
	  function "assign gdt"
SeeAlso: AH=02h"VMiX",AH=51h"VMiX"