--********************************************************************************************************************
-- Created:  9-Mar-2021 22:28:25 by OpenVMS SDL EV3-3      
-- Source:  19-APR-1993 14:26:17 $1$DGA8085:[LIB_ADA.LIS]HD4DEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package HD4DEF is
 
--  module $HD4DEF
 
--+
-- HDR4 ANSI MAGNETIC TAPE LABEL
-- THIS IS THE FOURTH LABEL IN FILE LABEL HEADER SET.
-- IT CONTAINS THE LONG FILENAME EXTENSION TO THE HDR1 FILE IDENTIFIER
-- FOR VMS LONG FILE NAMES
---
 
    HD4_S_HD4DEF		: constant := 82;
 
    type HD4_TYPE is
	record
	    HD4LID	: UNSIGNED_LONGWORD;				-- LABEL IDENTIFIER AND NUMBER 'HDR4' 
	    FILEID_EXT_SIZE	: UNSIGNED_BYTE;			-- SIZE OF FILE ID EXT FOR ANSI 4 VOLUMES
	    FILEID_EXT	: STRING(1 .. 62);				-- EXTENSION OF HDR1 FILEID
	    FILEID_EXT_V3	: STRING(1 .. 2);			-- SIZE OF FILE ID EXT FOR ANSI 3 VOLUMES
	    FILLER_1	: STRING(1 .. 13);				-- SPACES 
	end record;
 
	    for HD4_TYPE use 
		record
		    HD4LID	at 0 range 0 .. 31;
		    FILEID_EXT_SIZE	at 4 range 0 .. 7;
		    FILEID_EXT	at 5 range 0 .. 495;
		    FILEID_EXT_V3	at 67 range 0 .. 15;
		    FILLER_1	at 69 range 0 .. 103;
		end record;
	    for HD4_TYPE'SIZE use 656;
 
    HD4_TYPE_INIT : constant HD4_TYPE := 
	    (HD4LID	=> 0,
	    FILEID_EXT_SIZE	=> 0,
	    FILEID_EXT	=> (others => ASCII.NUL),
	    FILEID_EXT_V3	=> (others => ASCII.NUL),
	    FILLER_1	=> (others => ASCII.NUL));
 
end HD4DEF;