100 /	VT-8/E CONSOLE OVERLAY FILE
 110 
 120 /	LAST EDIT:	17-DEC-1986	23:00:00	CJL
 130 
 140 /	MAY BE ASSEMBLED WITH '/J' SWITCH SET.
 150 
 160 /	THIS IS THE CONSOLE OVERLAY FILE FOR VT-8/E TYPE CONSOLE SUPPORT WITH
 170 /	STANDARD BUFFERED LPT: AND I/O ERROR HANDLING CAPABILITIES.
 180 
 190 /	ASSEMBLY PARAMETERS.
 200 
 210 /	SETTING OVTYPE=40 GENERATES A STANDARD OVERLAY (DEVICE 43, 45 CONSOLE AND
 220 /	DEVICE 65, 66 LPT:).
 230 
 240 /	SETTING OVTYPE=41 GENERATES A NON-STANDARD OVERLAY (DEVICE 43, 45 CONSOLE
 250 /	AND DEVICE 40, 41 LPT:).
 260 
 270 /	ADDITIONAL TYPES CAN BE DEFINED FOR OTHER DEVICE CODES.
 280 
 290 /	SETTING LPBUFF=1 GENERATES AN OVERLAY WITH LPT: BUFFERING ENABLED.
 300 
 310 /	SETTING LPBUFF=0 GENERATES AN OVERLAY WITH LPT: BUFFERING DISABLED.
 320 
 330 /	SETTING VT8LPT=1 GENERATES INTERRUPT ENABLE FOR DEVICE 66. THIS IS TO BE
 340 /	SET WHEN THE LPT: IS NOT DEVICE 66, BUT DEVICE 66 SHARES INTERRUPT CONTROL
 350 /	WITH THE VT-8/E KEYBOARD (DEVICE 43).
 360 
 370 /	SETTING VT8LPT=0 DISREGARDS DEVICE 66 INTERRUPTS AND IS THE DEFAULT SETTING
 380 /	WHEN THE LPT: IS DEVICE 66 (THERE IS NO "EXTRA" DEVICE 66).
 390 
 400 /	SETTING ONEWAY=1 ASSUMES A HARDWARE HANDSHAKING (CENTRONICS, ETC.) TYPE
 410 /	INTERFACE TO THE LPT: WHICH HAS NO INPUT HANDLING.
 420 
 430 /	SETTING ONEWAY=0 ASSUMES A SOFTWARE HANDSHAKING (<^S>/<^Q>) TYPE INTERFACE
 440 /	WITH SUITABLE INPUT HANDLING.
 450 
 460 /	SET PARAMETERS HERE.
 470 
 480 /	KEY=	43		/KEYBOARD CODE
 490 /	LIN=	65		/LPT: INPUT CODE
 500 /	LPBUFF=	1		/ENABLE LPT: BUFFERING
 510 /	LPT=	66		/LPT: OUTPUT CODE
 520 /	NMCH1=	"V^100+"T-300	/FIRST NAME PAIR
 530 /	NMCH2=	"8^100+"E-300	/SECOND NAME PAIR
 540 /	NMCH3=	0000		/THIRD NAME PAIR
 550 /	ONEWAY=	1		/LPT: OUTPUT ONLY
 560 /	OUT=	45		/VT-8/E VIDEO CODE
 570 /	OVTYPE=	40		/GENERATE STANDARD OVERLAY
 580 /	VT8LPT=	0		/DON'T ENABLE SEPARATE INTERRUPT HANDLER FOR
 590 				/DORMANT DEVICE 66 (DEVICE 66 IS THE LPT:)
 600 	EJECT
 610 /	CONDITIONAL ASSEMBLY PARAMETERS.
 620 
 630 	IFNDEF	OVTYPE	<OVTYPE=40>		/DEFAULT TO STANDARD OVERLAY TYPE
 640 
 650 	IFZERO	OVTYPE-40	<
 660 
 670 	IFNDEF	KEY	<KEY=	43>		/DEFAULT KEYBOARD CODE
 680 	IFNDEF	LIN	<LIN=	65>		/DEFAULT LPT: INPUT CODE
 690 	IFNDEF	LPT	<LPT=	66>		/DEFAULT LPT: OUTPUT CODE
 700 	IFNDEF	NMCH1	<NMCH1=	"V^100+"T-300>	/DEFAULT FIRST NAME PAIR
 710 	IFNDEF	NMCH2	<NMCH2=	"8^100+"E-300>	/DEFAULT SECOND NAME PAIR
 720 	IFNDEF	NMCH3	<NMCH3=	0000>		/DEFAULT THIRD NAME PAIR
 730 	IFNDEF	ONEWAY	<ONEWAY=1>		/DEFAULT IS ONE-WAY LPT: HANDLING
 740 	IFNDEF	OUT	<OUT=	45>		/DEFAULT VT-8/E VIDEO CODE
 750 	IFNDEF	VT8LPT	<VT8LPT=0>		/DEFAULT IS NO SHARED INTERRUPTS
 760 
 770 				>
 780 
 790 	IFZERO	OVTYPE-41	<
 800 
 810 	IFNDEF	KEY	<KEY=	43>		/KEYBOARD CODE
 820 	IFNDEF	LIN	<LIN=	40>		/LPT: INPUT CODE
 830 	IFNDEF	LPT	<LPT=	41>		/LPT: OUTPUT CODE
 840 	IFNDEF	NMCH1	<NMCH1=	"V^100+"T-300>	/DEFAULT FIRST NAME PAIR
 850 	IFNDEF	NMCH2	<NMCH2=	"8^100+"E-300>	/DEFAULT SECOND NAME PAIR
 860 	IFNDEF	NMCH3	<NMCH3=	"S^100+"P-300>	/DEFAULT THIRD NAME PAIR
 870 	IFNDEF	ONEWAY	<ONEWAY=0>		/DEFAULT IS TWO-WAY LPT: HANDLING
 880 	IFNDEF	OUT	<OUT=	45>		/VT-8/E VIDEO CODE
 890 	IFNDEF	VT8LPT	<VT8LPT=1>		/GENERATE SHARED INTERRUPTS
 900 
 910 				>
 920 
 930 	IFNDEF	KEY	<KEY=	43>		/DEFAULT KEYBOARD CODE
 940 	IFNDEF	LIN	<LIN=	65>		/DEFAULT LPT: INPUT CODE
 950 	IFNDEF	LPBUFF	<LPBUFF=1>		/DEFAULTS TO LPT: BUFFERING
 960 	IFNDEF	LPT	<LPT=	66>		/DEFAULT LPT: OUTPUT CODE
 970 	IFNDEF	NMCH1	<NMCH1="V^100+"T-300>	/DEFAULT FIRST NAME PAIR
 980 	IFNDEF	NMCH2	<NMCH2="8^100+"E-300>	/DEFAULT SECOND NAME PAIR
 990 	IFNDEF	NMCH3	<NMCH3=0000>		/DEFAULT THIRD NAME PAIR
1000 	IFNDEF	ONEWAY	<ONEWAY=0>		/DEFAULT IS TWO-WAY LPT: HANDLING
1010 	IFNDEF	OUT	<OUT=	45>		/DEFAULT VT-8/E VIDEO CODE
1020 
1030 	IFZERO	LPT-66	<