External
	MAC_INFO	: Block[20,Quad];

! B. INPUT STACK FIELDS (INP)

Bind
	INPBUF		= MAC_INFO[ 0, 0,32,1]	: Vector,
    	INPUTTYPE	= MAC_INFO[ 2, 0, 8,0]	: Byte,
	ATOMISSYM	= MAC_INFO[ 2, 8, 8,0]	: Byte,
	STRMEOF		= MAC_INFO[ 2,16, 8,0]	: Byte,
	STREAMIN	= MAC_INFO[ 2,24, 8,0]	: Byte,
	PEEKBIT		= MAC_INFO[ 2,32, 8,0]	: Byte,
	ACTUALEXP	= MAC_INFO[ 2,40, 8,0]	: Byte,
	TRACEBIT	= MAC_INFO[ 2,48, 8,0]	: Byte,
	STRUEXPAND	= MAC_INFO[ 2,56, 8,0]	: Byte,

	FUTWINDOW	= MAC_INFO[ 3, 0,64,0]	: Integer,
	TMS		= MAC_INFO[ 4, 0,64,0]	: Ref Vector,
	ITMS		= MAC_INFO[ 5, 0,64,0]	: Ref Vector,
	MACRITCOUNT	= MAC_INFO[ 6, 0,64,0]	: Integer,
	MACRLENGTH	= MAC_INFO[ 7, 0,64,0]	: Integer,

	STRMTOP		= MAC_INFO[ 8, 0,64,0]	: Ref Vector,
	STRMBEG		= MAC_INFO[ 9, 0,64,0]	: Ref Vector,
	STRMPOS		= MAC_INFO[10, 0,64,0]	: Ref Vector,
	MACRSUBTYPE	= MAC_INFO[11, 0,64,0]	: Integer,

	STRUNAME	= MAC_INFO[12, 0,64,0]	: Ref ST,
	MACRNAME	= MAC_INFO[13, 0,64,0]	: Ref ST,
	STRUACT		= MAC_INFO[14, 0,64,0]	: Ref Vector,

	REMBEG		= MAC_INFO[12, 0,64,0]	: Ref Vector,
	REMTOP		= MAC_INFO[13, 0,64,0]	: Ref Vector,
	REMLEN		= MAC_INFO[14, 0,64,0]	: Integer,
	REMPOS		= MAC_INFO[15, 0,64,0]	: Integer,
	MACRNACTS	= MAC_INFO[16, 0,64,0]	: Integer,

	MACRACT		= MAC_INFO[17,0,64,0]	: Ref Vector,

	MACRSEP		= MAC_INFO[18, 0,64,0]	: Vector[4,Byte],
	MACRNF		= MAC_INFO[19, 0,64,0]	: Integer,
	MACRNI		= MAC_INFO[20, 0,64,0]	: Integer,

	INPMAX		= 21;

!  C. ACTUAL PARAMETER MECHANISM (APM)

External
	ARG_INFO	: Block[70,Quad];

Bind
	APMBUF		= ARG_INFO[ 0, 0,64,0]	: Vector,

!  D. ACTUAL PARAMETER LIST MECHANISM (APL)

	APLBUF		= ARG_INFO[ 2, 0,64,0]	: Vector,
	APLMAX		= 33+1,

!  E. STREAM CREATION MECHANISM (WST).

	WSTBUF		= ARG_INFO[36, 0,64,0]	: Vector,
	WSTMAX		= 20+1,

! E.1. TRACING STACK (MTBUF):

	MTBUF		= ARG_INFO[58, 0,64,0]	: Vector,
	MTMAX		= 10+1;