--********************************************************************************************************************
-- Created: 30-Mar-2010 17:33:49 by OpenVMS SDL EV3-3      
-- Source:  20-APR-1993 13:46:44 $1$DGA7274:[LIB_ADA.LIS]HD2DEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package HD2DEF is
 
--  module $HD2DEF
 
--+
-- HDR2 ANSI MAGNETIC TAPE LABEL
-- THIS IS THE SECOND LABEL IN FILE LABEL HEADER SET.
-- THE FILE ATTRIBUTES HAVE BEEN REMOVED FROM HDR2, AND PLACED IN HDR3.
-- THE FIELDS REMAIN IN THE DEFINITION TO SUPPORT OLD TAPES.
---
 
    HD2_S_HD2DEF		: constant := 72;
 
    type HD2_TYPE is
	record
	    HD2LID	: UNSIGNED_LONGWORD;				-- LABEL IDENTIFIER AND NUMBER 'HDR2' 
	    RECFORMAT	: UNSIGNED_BYTE;				-- RECORD FORMAT 
	    BLOCKLEN	: STRING(1 .. 5);				-- BLOCK LENGTH 
	    RECLEN	: STRING(1 .. 5);				-- RECORD LENGTH 
	    RECATR1	: STRING(1 .. 20);				-- FIRST 20 BYTES OF FILES-11 RECORD ATTRIBUTES 
	    FILLER_1	: CHARACTER;					-- SPACES 
	    FORMCNTRL	: UNSIGNED_BYTE;				-- FORMS CONTROL 
	    RECATR2	: STRING(1 .. 12);				-- LAST 12 BYTES OF FILES-11 RECORD ATTRIBUTES 
	    FILLER_2	: CHARACTER;					-- SPACES 
	    BUFOFF	: STRING(1 .. 2);				-- BUFFER OFFSET 
	    FILLER_3	: STRING(1 .. 20);				-- SPACES 
	end record;
 
	    for HD2_TYPE use 
		record
		    HD2LID	at 0 range 0 .. 31;
		    RECFORMAT	at 4 range 0 .. 7;
		    BLOCKLEN	at 5 range 0 .. 39;
		    RECLEN	at 10 range 0 .. 39;
		    RECATR1	at 15 range 0 .. 159;
		    FILLER_1	at 35 range 0 .. 7;
		    FORMCNTRL	at 36 range 0 .. 7;
		    RECATR2	at 37 range 0 .. 95;
		    FILLER_2	at 49 range 0 .. 7;
		    BUFOFF	at 50 range 0 .. 15;
		    FILLER_3	at 52 range 0 .. 159;
		end record;
	    for HD2_TYPE'SIZE use 576;
 
    HD2_TYPE_INIT : constant HD2_TYPE := 
	    (HD2LID	=> 0,
	    RECFORMAT	=> 0,
	    BLOCKLEN	=> (others => ASCII.NUL),
	    RECLEN	=> (others => ASCII.NUL),
	    RECATR1	=> (others => ASCII.NUL),
	    FILLER_1	=> ASCII.NUL,
	    FORMCNTRL	=> 0,
	    RECATR2	=> (others => ASCII.NUL),
	    FILLER_2	=> ASCII.NUL,
	    BUFOFF	=> (others => ASCII.NUL),
	    FILLER_3	=> (others => ASCII.NUL));
 
end HD2DEF;