--********************************************************************************************************************
-- Created:  9-Mar-2021 22:28:37 by OpenVMS SDL EV3-3      
-- Source:  21-APR-1993 09:59:04 $1$DGA8085:[LIB_ADA.LIS]VL1DEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package VL1DEF is
 
--  module $VL1DEF
 
--+
-- VOL1 ANSI MAGNETIC TAPE LABEL
-- THIS IS THE FIRST BLOCK ON EVERY ANSI LABELED MAGNETIC TAPE.
-- IT IDENTIFIES THE VOLUME AND ITS PROTECTION.
---
 
    VL1_S_VL1DEF		: constant := 80;
 
    type VL1_OWNER_IDENT_TYPE is					--  VOL1 OWNER ID FIELD
	record
	    VOLOWNER	: STRING(1 .. 13);				-- VOLUME OWNER IDENTIFICATION 
	    DECSTDVER	: UNSIGNED_BYTE;				-- DEC STANDARD VERSION 
	end record;
 
	    for VL1_OWNER_IDENT_TYPE use 
		record
		    VOLOWNER	at 0 range 0 .. 103;
		    DECSTDVER	at 13 range 0 .. 7;
		end record;
	    for VL1_OWNER_IDENT_TYPE'SIZE use 112;
 
    VL1_OWNER_IDENT_TYPE_INIT : constant VL1_OWNER_IDENT_TYPE := 
	    (VOLOWNER	=> (others => ASCII.NUL),
	    DECSTDVER	=> 0);
 
    type VL1_TYPE is
	record
	    VL1LID	: UNSIGNED_LONGWORD;				-- LABEL IDENTIFIER AND NUMBER 'VOL1' 
	    VOLLBL	: STRING(1 .. 6);				-- VOLUME LABEL 
	    VOLACCESS	: UNSIGNED_BYTE;				-- VOLUME ACCESS 
	    FILLER_1	: STRING(1 .. 13);				-- SPACES 
	    SYSCODE	: STRING(1 .. 13);				--  SYSTEM CODE
	    OWNER_IDENT	: VL1_OWNER_IDENT_TYPE;				--  VOL1 OWNER ID FIELD
	    FILLER_2	: STRING(1 .. 28);				-- SPACES 
	    LBLSTDVER	: UNSIGNED_BYTE;				-- LABEL STANDARD VERSION '3' 
	end record;
 
	    for VL1_TYPE use 
		record
		    VL1LID	at 0 range 0 .. 31;
		    VOLLBL	at 4 range 0 .. 47;
		    VOLACCESS	at 10 range 0 .. 7;
		    FILLER_1	at 11 range 0 .. 103;
		    SYSCODE	at 24 range 0 .. 103;
		    OWNER_IDENT	at 37 range 0 .. 111;
		    FILLER_2	at 51 range 0 .. 223;
		    LBLSTDVER	at 79 range 0 .. 7;
		end record;
	    for VL1_TYPE'SIZE use 640;
 
    VL1_TYPE_INIT : constant VL1_TYPE := 
	    (VL1LID	=> 0,
	    VOLLBL	=> (others => ASCII.NUL),
	    VOLACCESS	=> 0,
	    FILLER_1	=> (others => ASCII.NUL),
	    SYSCODE	=> (others => ASCII.NUL),
	    OWNER_IDENT	=> VL1_OWNER_IDENT_TYPE_INIT,
	    FILLER_2	=> (others => ASCII.NUL),
	    LBLSTDVER	=> 0);
 
end VL1DEF;