INT 60 - HP 95LX System Manager - LET SYSTEM MANAGER PROCESS EDITING KEYSTROK

	DI = 0403h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to edit record (see #03285)
		WORD	keystroke
		DWORD	pointer to WORD buffer for result code
Return: result code buffer filled with 0001h if editing complete
	STACK unchanged