--
--****************************************************************************
--*                                                                          *
--*  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 22:54:29 by OpenVMS SDL EV1-33     
-- Source:  14-NOV-1991 17:38:44 $11$DUA933:[LIB_ADA.LIS]WSLDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package WSLDEF is
 
--  module $WSLDEF
 
--+
-- WORKING SET LIST DEFINITIONS
---
 
    WSL_M_VALID			: constant := 16#00000001#;
    WSL_M_PAGTYP		: constant := 16#0000000E#;
    WSL_M_PFNLOCK		: constant := 16#00000010#;
    WSL_M_WSLOCK		: constant := 16#00000020#;
    WSL_M_GOODPAGE		: constant := 16#00000040#;
    WSL_M_MODIFY		: constant := 16#00000100#;
    WSL_M_OFFSET		: constant := 16#7FFFFE00#;
    WSL_C_LENGTH		: constant := 4;			-- SIZE OF WS LIST ENTRY 
 
--
 
    WSL_C_PROCESS		: constant := 0;			-- PROCESS PAGE 
    WSL_C_SYSTEM		: constant := 2;			-- SYSTEM PAGE 
    WSL_C_GLOBAL		: constant := 4;			-- GLOBAL PAGE (READ ONLY) 
    WSL_C_GBLWRT		: constant := 6;			-- GLOBAL WRITABLE PAGE 
    WSL_C_PPGTBL		: constant := 8;			-- PROCESS PAGE TABLE 
    WSL_C_GPGTBL		: constant := 10;			-- GLOBAL PAGE TABLE 
 
    type WSL_TYPE is
	record
	    VALID	: BOOLEAN;					-- WSL ENTRY VALID 
	    PAGTYP	: UNSIGNED_3;					-- PAGE TYPE (SEE PFNDEF FOR VALUES) 
	    PFNLOCK	: BOOLEAN;					-- PAGE FRAME LOCK 
									-- THE PRECEDING 5 BITS MUST BE IN ORDER
	    WSLOCK	: BOOLEAN;					-- WORKING SET LOCK 
	    GOODPAGE	: BOOLEAN;					-- THIS PAGE SHOULD REMAIN IN WS ONE MORE PASS 
	    FILLER_1	: BOOLEAN;					-- SPARE BIT 
	    MODIFY	: BOOLEAN;					-- SAVED MODIFY BIT 
	    OFFSET	: UNSIGNED_22;					--  WSLE OFFSET
	    FILLER_2	: BOOLEAN;
	end record;
 
	    for WSL_TYPE use 
		record
		    VALID	at 0 range 0 .. 0;
		    PAGTYP	at 0 range 1 .. 3;
		    PFNLOCK	at 0 range 4 .. 4;
		    WSLOCK	at 0 range 5 .. 5;
		    GOODPAGE	at 0 range 6 .. 6;
		    FILLER_1	at 0 range 7 .. 7;
		    MODIFY	at 1 range 0 .. 0;
		    OFFSET	at 1 range 1 .. 22;
		    FILLER_2	at 3 range 7 .. 7;
		end record;
	    for WSL_TYPE'SIZE use 32;
 
    WSL_TYPE_INIT : constant WSL_TYPE := 
	    (VALID	=> FALSE,
	    PAGTYP	=> 0,
	    PFNLOCK	=> FALSE,
	    WSLOCK	=> FALSE,
	    GOODPAGE	=> FALSE,
	    FILLER_1	=> FALSE,
	    MODIFY	=> FALSE,
	    OFFSET	=> 0,
	    FILLER_2	=> FALSE);
 
end WSLDEF;