;
; THIS DEFINES THE INTERFACE TO THE SCREEN HANDLING ROUTINES AND
; SHOULD BE INCLUDED IN THE SOURCE OF ANY PROGRAM USING THEM.
;
; THE COMMON AREA 'SCREEN' CONTAINS THE FOLLOWING VARIABLES:
;
;	ADDBUF	- ADDRESS OF BUFFER TO HOLD FORMATTING STRINGS
;	TOTBYT	- LENGTH OF BUFFER
;	BYTCNT	- NUMBER OF BYTES IN BUFFER ALREADY USED
;	COLNO	- COLUMN NUMBER FOR CURSOR POSITIONING (1-N)
;	ROWNO	- ROW NUMBER FOR CURSOR POSITIONING (1-N)
;	TABCNT	- TAB STOP COUNT FOR TABBING
;	LINENO	- LINE NUMBER FOR SCROLL AREA SETTING
;	OUT	- FLAG TO CONTROL OUTPUT (1=OUTPUT THE STRING)
;	LUN	- LUN FOR OUTPUT IF OUT=1
;
; AS THESE ARE GLOBALLY DEFINED IN CTLOUT THEY ARE NOT NEEDED HERE.
BUFF:	.BLKB	40.