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/*
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 *  contains the type declarations for generic information  
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 *
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 * $Header: c:\\cygwin\\cvsroot/Vert03/vertlib/generic.h,v 1.1.1.1 2003/11/04 23:34:57 mjames Exp $
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 *
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 * $Log: generic.h,v $
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 * Revision 1.1.1.1  2003/11/04 23:34:57  mjames
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 * Imported into local repositrory
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 *
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 * Revision 1.9  2002/09/27 22:38:07  MJAMES
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 * Introduced automatic creation of partition generics
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 *
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 * Revision 1.8  2002/09/09 10:29:21  mjames
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 * Removed set generic range and replaced it with a set generic value command
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 * that takes both integers and ranges.
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 *
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 * Revision 1.7  2002/01/15 12:34:54  mjames
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 * ALtered comments on the enumeration for generic classes
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 *
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 * Revision 1.6  2001/10/31 22:20:07  mjames
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 * Tidying up problematical comments caused by CVS
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 * 'intelligent' comment guessing
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 *
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 * Revision 1.5  2001/10/22 10:59:56  mjames
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 * Added IS_ATTRIBUTE : a generic attribute used for controlling VERTICAL.
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 * Can have either string or expression here.
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 *
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 * Revision 1.4  2001/06/06 12:10:21  mjames
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 * Move from HPUX
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 *
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 * Revision 1.3  2001/04/06 22:47:02  mjames
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 * Added doc2, the creator of documentation to Vertical scripts uses PERL
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 * Also correcting generic behaviour and the printing of Verilog.
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 *
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 * Revision 1.2  2001/01/02 07:53:53  mjames
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 * Made changes to allow for interface with TCL/Tk
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 *
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 * Revision 1.1.1.1  2000/10/19 21:58:38  mjames
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 * Mike put it here
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 *
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 * Revision 1.25  2000/10/04  10:37:14  10:37:14  mjames (Mike James)
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 * Modified for Vertical2 : support COMPONENTS and SIGNALS
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 *
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 * Revision 1.25  2000/10/04  10:37:14  10:37:14  mjames (Mike James)
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 * Part of Release PSAVAT01
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 *
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 * Revision 1.24  2000/10/02  11:04:15  11:04:15  mjames (Mike James)
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 * new_vhdl
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 *
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 * Revision 1.23  2000/09/27  14:42:30  14:42:30  mjames (Mike James)
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 * Part of Release Sep_27_ST_2000
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 *
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 * Revision 1.22  2000/09/21  10:15:59  10:15:59  mjames (Mike James)
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 * Part of Release Sep21Alpha
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 *
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 * Revision 1.21  2000/08/25  09:57:23  09:57:23  mjames (Mike James)
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 * Part of Release Aug25_alpha
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 *
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 * Revision 1.20  2000/08/16  08:57:40  08:57:40  mjames (Mike James)
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 * Part of Release CD01_Aug2000
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 *
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 * Revision 1.19  2000/08/14  14:45:19  14:45:19  mjames (Mike James)
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 * Part of Release Aug_14_2000
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 *
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 * Revision 1.18  2000/08/11  08:30:39  08:30:39  mjames (Mike James)
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 * Part of Release Aug_11_2000
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 *
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 * Revision 1.17  2000/08/09  10:31:57  10:31:57  mjames (Mike James)
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 * Part of Release Aug__9_2000
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 *
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 * Revision 1.16  2000/05/31  11:43:10  11:43:10  mjames (Mike James)
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 * Part of Release May_31_2000
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 *
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 * Revision 1.15  2000/05/08  17:01:46  17:01:46  mjames (Mike James)
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 * Part of Release May__8_2000
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 *
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 * Revision 1.14  2000/05/08  16:59:39  16:59:39  mjames (Mike James)
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 * Part of Release May__8_2000
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 *
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 * Revision 1.13  2000/05/08  16:57:16  16:57:16  mjames (Mike James)
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 * Part of Release May__8_2000
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 *
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 * Revision 1.12  2000/03/08  16:19:09  16:19:09  mjames (Mike James)
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 * New version including PC
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 *
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 * Revision 1.9  2000/01/20  15:58:58  15:58:58  mjames (Mike James)
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 * Part of Release R22
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 *
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 * Revision 1.8  99/12/22  11:15:38  11:15:38  mjames (Mike James)
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 * Part of Release Dec_22_1999
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 *
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 * Revision 1.7  99/11/23  13:52:06  13:52:06  mjames (Mike James)
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 * Addded syntax to support special generics for Certify support
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 *
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 * Revision 1.6  99/06/18  09:25:18  09:25:18  mjames (Mike James)
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 * Added new VHDL printing of generic information
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 *
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 * Revision 1.5  99/05/04  09:51:40  09:51:40  mjames (Mike James)
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 * Amended generic lookup rules
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 *
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 * Revision 1.3  98/08/12  14:21:28  14:21:28  mjames (Mike James)
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 * Added correct header files
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 *
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 * Revision 1.2  98/07/14  13:24:48  13:24:48  mjames (Mike James)
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 * fixed errors in lookup of generic variables -
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 * now works better
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 *
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 * Revision 1.1  98/02/11  11:26:21  11:26:21  mjames (Mike James)
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 * Initial revision
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 *  */
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#if !defined _GENERIC
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#define _GENERIC
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#if !defined _EXPRESSION
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#error Need to include expression.h before generic.h
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#endif
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/* this structure is used to provide a list of all expressions that make
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   reference to a particular pointer */
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typedef struct expr_ref
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  {
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  struct expr_ref * expr_ref;
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  expression_t *    expr;
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  } expr_ref_t;
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typedef enum {
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  NO_VALUE = 0,
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  IS_STRING,      
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  IS_INTEGER,
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  IS_DECLARATION_DIRECTIVE,
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  IS_INSTANCE_DIRECTIVE,
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  IS_ENV_VAL,            /* environment value : string */
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  IS_ATTRIBUTE,          /* component attribute : integer */
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  IS_BOOLEAN
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  } generic_type_t;
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/* this is used to define whether a generic
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   attached to an entity is
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   a default or defined for that entity */
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typedef enum {
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  DEFAULT=0,
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  DEFINED
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  } generic_define_class_t;
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/* need to define actual data types as otherwise there will be problems
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 * definition eg. of integer range type which is assigned a fixed value.
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 * e.g. signal s : integer range (0 to 31) := 23;. This is not supported
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 * yet but it needs to be there....
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 * As of December 2000 there are only a few defined data types */
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typedef struct generic_info {
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  struct generic_info * next;               /* neighbour in generic values */
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  char * name;
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  char * typename;  /* this section needs expansion into a types hierarchy */
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  expression_t * expr; /* this is its current value as opposed to the type */
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  expr_ref_t   * expr_ref; /* this is a pointer to the list of expressions that
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                              refer to this generic */
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  generic_type_t         g_type;
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  generic_define_class_t g_class;
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  unsigned int valid:1;
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  unsigned int is_component_generic:1; /* is this generic part of a component template */
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  } generic_info_t;
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extern generic_info_t * global_generics;   /* a list of user set generics */
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extern generic_info_t * partition_generics;/* a list of generics in the partition */
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extern generic_type_t get_generic_value(
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  generic_info_t ** list,
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  char * name,
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  generic_info_t * value);
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extern generic_info_t * get_generic_ref(
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  generic_info_t ** list,
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  char * name);
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extern int convert_num(char * string,int * value);
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/* this function makes a copy of the info passed to it */
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extern generic_info_t *  set_generic_value(generic_info_t ** list, generic_info_t * info);
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/* this function will delete a generic expression whose
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   name matches that given, if found on the list */
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extern int del_generic_value(generic_info_t ** list, generic_info_t * info);
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extern void list_generic_values(FILE * f,generic_info_t ** list,int indent);
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extern void list_VHDL_generic_map_values(FILE * f,generic_info_t ** list) ;
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extern void list_VHDL_generic_values(FILE * f,generic_info_t ** list) ;
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extern void list_VHDL_constants(FILE * f,generic_info_t ** list) ;
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struct socket; /* from database.h */
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extern void copy_declaration_generics(struct socket * to,struct socket * from);
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extern void clear_partition_generics(generic_info_t ** list);
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extern void elaborate_all(void);
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#endif