--
--****************************************************************************
--*                                                                          *
--*  Copyright (c) 2001                                                      *
--*  by DIGITAL Equipment Corporation, Maynard, Mass.                        *
--*                                                                          *
--*  This software is furnished under a license and may be used and  copied  *
--*  only  in  accordance  with  the  terms  of  such  license and with the  *
--*  inclusion of the above copyright notice.  This software or  any  other  *
--*  copies  thereof may not be provided or otherwise made available to any  *
--*  other person.  No title to and ownership of  the  software  is  hereby  *
--*  transferred.                                                            *
--*                                                                          *
--*  The information in this software is subject to change  without  notice  *
--*  and  should  not  be  construed  as  a commitment by DIGITAL Equipment  *
--*  Corporation.                                                            *
--*                                                                          *
--*  DIGITAL assumes no responsibility for the use or  reliability  of  its  *
--*  software on equipment which is not supplied by DIGITAL.                 *
--*                                                                          *
--****************************************************************************
--********************************************************************************************************************
-- Created: 15-MAR-2001 22:52:13 by OpenVMS SDL EV1-33     
-- Source:   2-SEP-1989 10:42:37 $11$DUA933:[LIB_ADA.LIS]IFDDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package IFDDEF is
 
--  module $IFDDEF
 
--+
-- IMAGE FILE DESCRIPTOR BLOCK - RETURNED BY IMAGE ACTIVATOR
---
 
    IFD_M_EXEONLY		: constant := 16#00000001#;
    IFD_M_PRIV			: constant := 16#00000002#;
    IFD_M_SETVECTOR		: constant := 16#00000004#;
    IFD_K_LENGTH		: constant := 28;			-- LENGTH OF FIXED AREA OF IFD 
    IFD_C_LENGTH		: constant := 28;			-- LENGTH OF FIXED AREA OF IFD 
 
    type IFD_FLAGS_TYPE is						-- IMAGE FILE DESCRIPTOR FLAGS 
	record
	    EXEONLY	: BOOLEAN;					-- EXECUTE ONLY FILE 
	    PRIV	: BOOLEAN;					-- IMAGE INSTALLED WITH ENHANCED PRIVILEGE 
	    SETVECTOR	: BOOLEAN;					-- PRIVILEGED VECTORS TO BE INSTALLED 
	    FILLER_1	: UNSIGNED_13;
	end record;
 
	    for IFD_FLAGS_TYPE use 
		record
		    EXEONLY	at 0 range 0 .. 0;
		    PRIV	at 0 range 1 .. 1;
		    SETVECTOR	at 0 range 2 .. 2;
		    FILLER_1	at 0 range 3 .. 15;
		end record;
	    for IFD_FLAGS_TYPE'SIZE use 16;
 
    IFD_FLAGS_TYPE_INIT : constant IFD_FLAGS_TYPE := 
	    (EXEONLY	=> FALSE,
	    PRIV	=> FALSE,
	    SETVECTOR	=> FALSE,
	    FILLER_1	=> 0);
 
    type IFD_TYPE is
	record
	    SIZE	: UNSIGNED_WORD;				-- SIZE IN BYTES OF IMAGE FILE DESCRIPTOR 
	    FILNAMOFF	: UNSIGNED_WORD;				-- OFFSET TO RESULTANT FILE NAME STRING 
	    FILLER_1	: UNSIGNED_WORD;				-- RESERVED OFFSET 1 
	    FILLER_2	: UNSIGNED_WORD;				-- RESERVED OFFSET 2 
	    CHAN	: UNSIGNED_WORD;				-- CHANNEL ON WHICH IMAGE FILE IS OPEN 
	    CMCHAN	: UNSIGNED_WORD;				-- COMPATIBILITY MODE CHANNEL 
	    CMKFIADR	: UNSIGNED_LONGWORD;				-- COMPATIBILITY MODE IMAGE 
									-- KNOWN FILE ENTRY ADDRESS OR 0
	    FLAGS	: IFD_FLAGS_TYPE;				-- IMAGE FILE DESCRIPTOR FLAGS 
	    FILLER_3	: UNSIGNED_WORD;				-- SPARE WORD 
	    CURPROG	: UNSIGNED_QUADWORD;				-- STRING DESCRIPTOR FOR CURRENTLY 
									-- RUNNING PROGRAM NAME
	end record;
 
	    for IFD_TYPE use 
		record
		    SIZE	at 0 range 0 .. 15;
		    FILNAMOFF	at 2 range 0 .. 15;
		    FILLER_1	at 4 range 0 .. 15;
		    FILLER_2	at 6 range 0 .. 15;
		    CHAN	at 8 range 0 .. 15;
		    CMCHAN	at 10 range 0 .. 15;
		    CMKFIADR	at 12 range 0 .. 31;
		    FLAGS	at 16 range 0 .. 15;
		    FILLER_3	at 18 range 0 .. 15;
		    CURPROG	at 20 range 0 .. 63;
		end record;
	    for IFD_TYPE'SIZE use 224;
 
    IFD_TYPE_INIT : constant IFD_TYPE := 
	    (SIZE	=> 0,
	    FILNAMOFF	=> 0,
	    FILLER_1	=> 0,
	    FILLER_2	=> 0,
	    CHAN	=> 0,
	    CMCHAN	=> 0,
	    CMKFIADR	=> 0,
	    FLAGS	=> IFD_FLAGS_TYPE_INIT,
	    FILLER_3	=> 0,
	    CURPROG	=> (0, 0));
 
end IFDDEF;