.Title	MDTAB - Database for MDDRV

	.Ident	/V01.00/	; Version information

;
; Copyright ()) 1986
; Prolifix, Inc., Frankfort, Kentucky
;
; This software is made available to any user of a Digital Equipment
; Corporation Professional 300 series computer without charge.  You may
; distribute, modify, and use this software as long this copyright
; notice is included and you do not charge anything beyond the cost of
; duplication.  Title to and ownership of the software shall at all
; times remain with Prolifix, Inc.
;
; No committment for support or development of this software is implied
; or intended.  No responsibility for the use or reliability of this
; software shall be assumed.
;

	.Mcall	Ucbdf$
 
	Ucbdf$			; Define UCB masks

$MDDAT::			; Start of database
;
; MD DCB
;

	$MDTBL	= 0		; Loadable MDDRV
$MDDCB::
	.Word	0		; D.LNK - link to next DCB
	.Word	.MD0		; D.UCB - pointer to first UCB
	.Ascii	/MD/		; D.NAM - ASCII device name
	.Byte	0,1-1		; D.UNIT - unit number range
	.Word	MDND-MDST	; D.UCBL - UCB length
	.Word	$MDTBL		; D.DSP - driver dispatch table pointer
				; D.MSK - function masks
	.Word	177077		; Legal function mask bits 0-15.
	.Word	70		; Control function mask bits 0-15.
	.Word	0		; No-op function mask bits 0-15.
	.Word	177200		; ACP function mask bits 0-15.
	.Word	777		; Legal function mask bits 16.-31.
	.Word	0		; Control function mask bits 16.-31.
	.Word	0		; No-op function mask bits 16.-31.
	.Word	777		; ACP function mask bits 16.-31.
	.Word	0		; D.PCB - PCB address
;
; UCB
;
MDST=.

	.Word	0		; U.OWN - owning terminal UCB
.MD0::
	.Word	$MDDCB		; U.DCB - back pointer to DCB
	.Word	.-2		; U.RED - redirect UCB pointer
	.Byte	Uc.Alg!1	; U.CTL - Control flags
	.Byte	Us.Mnt		; U.STS - unit status
	.Byte	0		; U.UNIT- physical unit no.
	.Byte	Us.Pub!Us.Ofl	; U.ST2 - unit status
	.Word	Dv.Dir!Dv.Msd!Dv.F11!Dv.Mnt ; U.CW1 - Characteristics word
	.Word	0		; U.CW2
	.Blkw	1		; U.CW3 - Maximum LBN
	.Word	512.		; U.CW4 - Buffer size
	.Word	$MD0		; U.SCB - Pointer to SCB
	.Word	0		; U.ATT - TCB of attached task
	.Word	0,0		; U.BUF - buffer doubleword
	.Word	0		; U.CNT - byte count
	.Word	0		; U.UCBX - UCB extension
	.Word	0		; U.ACP - Address of TCB of mounted ACP
	.Word	0		; U.VCB - Address of volume control block
MDND=.
;
; SCB
;
$MD0:: 	.Word	0,.-2		; S.LHD - I/O queue listhead
	.Word	0,0,0,0		; S.FRK - Fork block
	.Word	0		; S.KS5 - driver/fork KISAR5
	.Word	0		; S.PKT - I/O packet address
	.Byte	0,0		; S.CTM, S.ITM - time-out counters
	.Byte	0,0		; S.STS, S.ST3 - status, status extension
	.Word	0		; S.ST2 - status extension
	.Word	0		; S.KRB - KRB address (no KRB in MDDRV)

$MDEND::

	.End