.TITLE	EDTAB
	.IDENT	/V02/
;
;****************************************************************
;
; [06-MAR-78]		D.DANIELS	[V3.1]
;
; EXECUTIVE DRIVER
;
;	**LOADABLE DRIVER SUPPORT AND MULTIUSER PROTECTION**
;
; LOADABLE DRIVER TABLES REQUIRE, AS FAR AS CAN BE DETERMINED, AN
; INTERUPT VECTOR.  THE VECTOR SUPPLIED IS UNUSED BY THE DRIVER.
; THE ERROR LOGGING TRAPS THROUGH THIS VECTOR ARE LOST TO THE
; SYSTEM.
;
;****************************************************************
; MACRO LIBRARY CALLS
;****************************************************************
;
	.MCALL	DEVDF$,HWDDF$
;
	DEVDF$			; DEVICE OFFSETS
	HWDDF$			; HARDWARE REGISTERS
;
;****************************************************************
; HARDWARE DEFINITIONS
;****************************************************************
;
VECTOR=		440		; INTERRUPT VECTOR
EDPR=		PR5		; DEVICE PRIORITY
;
; LOADABLE DRIVER SUPPORT
;
LD$ED=		0		; LD$'DEV' FOR ACCESS TO INTSV$
;
;****************************************************************
; DEVICE CONTROL BLOCK
;****************************************************************
;
$EDDAT::			; START OF DRIVER TABLES
EDDCB:	.WORD	0		; POINTER TO NEXT DCB		; D.LNK
	.WORD	.ED0		; POINTER TO FIRST UCB		; D.UCB
	.ASCII	/ED/		; GENERIC DEVICE NAME		; D.NAM
	.BYTE	0		; LOW  UNIT # FOR DCB		; D.UNIT
	.BYTE	0		; HIGH UNIT #
	.WORD	EDND-EDST	; LENGTH OF UCB IN BYTES	; D.UCBL
	.WORD	0		; ADDRESS DRIVER DISPATCH TABLE	; D.DSP
				; 0 FOR LOADABLE DRIVER
				; $EDTBL NON-LOADABLE
	.WORD	37		; LEGAL FUNCTION MASKS 0-15	; D.MSK
	.WORD	30		; CONTROL FUNCTION MASKS 0-15
	.WORD	0		; NO-OP'ED FUNCTION MASKS 0-15
	.WORD	0		; ACP FUNCTIONS MASKS 0-15
	.WORD	0		; LEGAL FUNCTION MASKS 16-31
	.WORD	0		; CONTROL FUNCTIONS MASKS 16-31
	.WORD	0		; NO-OP'ED 16-31
	.WORD	0		; ACP FUNC'S 16-31
	.WORD	0		; ADDR. PARTITION CONTROL BLOCK	; D.PCB
;
;****************************************************************
; UNIT CONTROL BLOCK
;****************************************************************
;
EDST=.
	.WORD	0		; OWNING TERMINAL UCB ADDR.	; U.OWN 
.ED0::
	.WORD	EDDCB		; BACK POINTER TO DCB		; U.DCB
	.WORD	.-2		; REDIRECT UCB POINTER		; U.RED
	.BYTE	0		; CONTROL FLAGS			; U.CTL
	.BYTE	0		; UNIT STATUS			; U.STS
	.BYTE	0		; PHYSICAL UNIT #		; U.UNIT
	.BYTE	US.RED!US.PUB	; STATUS EXTENTION		; U.ST2
				; NOT REDIRECTABLE
				; PUBLIC
	.WORD	0		; CHARACTERISTICS WORD #1	; U.CW1
	.WORD	0		; CHARACTERISTICS WORD #2	; U.CW2
	.WORD	0		; CHARACTERISTICS WORD #3	; U.CW3
	.WORD	0		; CAHRACTERISTICS WORD #4	; U.CW4
	.WORD	0		; POINTER TO SCB		; U.SCB
	.WORD	0		; TCB ADDRESS OF ATTACHED TASK	; U.ATT
	.BLKW	1		; BUFFER RELOCATIO BIAS		; U.BUF
	.BLKW	1		; BUFFER ADDRESS
	.BLKW	1		; BUFFER BYTE COUNT		; U.CNT
EDND=.				; END OF UCB
;
;****************************************************************
; STATUS CONTROL BLOCK
;****************************************************************
;
$ED0::
EDSCB:	.WORD	0		; LISTHEAD, 1ST I/O PACKET	; S.LHD
	.WORD	.-2		; LAST I/O PACKET
	.BYTE	EDPR		; PRIORITY			; S.PRI
	.BYTE	VECTOR/4	; VECTOR ADDRESS/ 4		; S.VCT
	.BYTE	0		; CURRENT TIMEOUT COUNT		; S.CTM
	.BYTE	0		; INITIAL TIMEOUT COUNT		; S.ITM
	.BYTE	0		; CONTROLLER INDEX (#*2)	; S.CON
	.BYTE	0		; CONTROLLER STATUS		; S.STS
	.WORD	0		; ADDRESS OF STATUS REGISTER	; S.CSR
	.BLKW	1		; ADDRESS OF CURRENT I/O PACK	; S.PKT
	.BLKW	5		; FORK BLOCK			; S.FRK
$EDEND:: 			; END OF DATA STRUCTURE
	.END