## External loader interface#Nilmod: module{}; Loader: module{	PATH:	con	"$Loader"; 	Inst: adt	{		op:	byte;		addr:	byte;		src:	int;		mid:	int;		dst:	int;	}; 	Typedesc: adt	{		size:	int;		map:	array of byte;	}; 	Link: adt	{		name:	string;		sig:	int;		pc:	int;		tdesc:	int;	}; 	Niladt: adt	{	}; 	ifetch:		fn(mp: Nilmod): array of Inst;	tdesc:		fn(mp: Nilmod): array of Typedesc;	newmod:		fn(name: string, ss, nlink: int,				inst: array of Inst, data: ref Niladt): Nilmod;	tnew:		fn(mp: Nilmod, size: int, map: array of byte): int;	link:		fn(mp: Nilmod): array of Link;	ext:		fn(mp: Nilmod, idx, pc: int, tdesc: int): int;	dnew:		fn(size: int, map: array of byte): ref Niladt;	compile:	fn(mp: Nilmod, flag: int): int;};