.NLIST
;
; This file defines the CSD "Special System Information" symbolics
; and data subpacket offsets. Designed to be a prefix file for AVD,
; DVD, ENABLE and DISABL. I did the structure defs the crude way because
; TKB squawked about "load address out of range" with .ASECT hax.
;
; Bob Denny	09-Aug-82
; Bob Denny	10-Aug-82	Add ACP Service Message
;

;
; Define the "Special Information" Packet Type
;
E$CSSI	==	9.		; Code for E$HTYC == "Special System Info"

;
; Define the Special System Info Packet subtypes, in offset E$HTYS of
; the header subpacket.
;
E$SAVD	==	1		; Assign Virtual Disk
E$SDVD	==	2		; Deassign Virtual Disk
E$SAC1	==	3		; ACP Startup
E$SAC2	==	4		; ACP Shutdown
E$SAC3	==	5		; ACP Service Message



;
; Data Subpacket for Assign/Deassign Virtual Disk
;
; ** SUBTYPE = E$SAVD & E$SDVD **
;
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	VD.VDS		|  Operation flags (AVD only)   |  (0)
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	VD.PDV		|     Physical Device/Unit      |  (2)
;			|-	       -|-	       -|
;			|	 (6 bytes ASCII)	|
;			|-	       -|-	       -|
;			|				|
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	VD.PFL		|      Physical File Spec       |  (10)
;			|-	       -|-	       -|
;			|     (32(10) bytes ASCII)      |
;			|-	       -|-	       -|
;			|				|
;			\				\
;			\				\
;			|				|
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	VD.CRE		|    Creation size, blocks      |  (50)
;			|-                             -|
;			| (32-bits, only if VD.CR set)  |
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	VD.PLC		|         Placement LBN         |  (54)
;			|-                             -|
;			| (32-bits, only if VD.PL set)  |
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;
;  Length of data subpacket = VD.LEN = 60(8)
;

;
; Define the data subpacket for E$SAVD and E$SDVD
;
VD.VDS	==	0		; AVD operation flags (see below)
VD.PDV	==	2		; Physical Device/Unit (6 bytes ASCII w/":")
VD.PFL	==	8.		; Physical File Spec (32 bytes)
VD.CRE	==	40.		; Creation Size (32 bits) (if VD.CR set)
VD.PLC	==	44.		; Placement LBN (32 bits) (if VD.PL set)
VD.LEN	==	48.		; Length of data subpacket
;
; Define bits for VD.VDS
;
VD.RO	==	000001		; Assigned Read-Only
VD.CR	==	000002		; File created by AVD
VD.PL	==	000004		; File created with placement control


;
; Data subpacket for ACP startup and ACP shutdown
;
; ** SUBTYPES E$SAC1 and E$SAC2 **
;
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	AC.NAM		|	     ACP Name           |
;			|-	       -|-	       -|
;			|	  (6 Char RAD50)	|
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	AC.MGL		| Service Message length, bytes |
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;			|  Service Message text, ASCII  |
;	AC.MSG		|-	       -|-	       -|
;			|    (up to 80 characters)
;			|-	       -|-	       -|
;			|				|
;			\				\
;			\				\
;			|				|
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;
;	Length of data subpacket = Variable
;

;
; Define the data subpacket for E$SAC1 and E$SAC2
;
AC.NAM	==	0		; ACP name (2 words RAD50)
AC.LEN	==	4		; /PRM = "xx" message length, bytes (or 0)
AC.MSG	==	6		; /PRM = "xx" message (ASCII)



;
; Data subpacket for ACP Service Message
;
; ** SUBTYPE E$SAC3 **
;
;
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;	AS.MGL		| Service Message length, bytes |
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;			|  Service Message text, ASCII  |
;	AS.MSG		|-	       -|-	       -|
;			|    (up to 80 characters)
;			|-	       -|-	       -|
;			|				|
;			\				\
;			\				\
;			|				|
;			|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|
;
;	Length of data subpacket = Variable
;

;
; Define the symbolic offsets crudely
;
AS.MGL	==	0			; Message length, bytes
AS.MSG	==	2			; Message, up to 80 bytes

	.LIST