INT E0 - CP/M-86, Concurrent CP/M, DR Multiuser DOS - FUNCTION CALLS

	CL = function number (see #04019,#04020)
	DS,DX contain parameter(s):
		DL = byte parameter
		DX = word parameter
		DS:DX -> structure
Return: as appropriate for function:
		AL = byte result
		AX = word
		ES:AX -> structure (and BX=ES)
	CX is often the error code (see #04021)
Notes:	several functions are covered in more detail in following entries
	most of these calls are also supported by Digital Research's DOS Plus
	  v2.1; the unsupported functions are 26h,29h-2Bh,3Ah,3Dh-62h,71h-8Ch,
	  90h-92h,94h-97h,9Bh-ABh, and AEh-FFh
SeeAlso: INT 21/AX=4459h,INT 21/AH=E0h"DOS Plus",INT E6"CP/M-86"