source: vis_dev/vis-2.3/src/ord/ord.h @ 43

Last change on this file since 43 was 14, checked in by cecile, 13 years ago

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1/**CHeaderFile*****************************************************************
2
3  FileName    [ord.h]
4
5  PackageName [ord]
6
7  Synopsis    [Routines for ordering MDD variables of a flattened network.]
8
9  Description [The routines in this package relate to ordering MDD variables
10  corresponding to the nodes of a network.  The enumerated type Ord_OrderType
11  is used to specify to which set of nodes certain ordering routines should
12  be applied.  The following matrix shows which node types are included in
13  each ordering type:
14  <pre>
15                  |             Ord_OrderType
16   node type      |  All   InputAndLatch   NextStateNode
17  ----------------+---------------------------------------
18  primary input   |   x          x
19  pseudo input    |   x          x
20  latch           |   x          x
21  shadow          |   x          x               x 
22  combinational   |   x
23 
24  </pre>
25
26  In addition, the order type Partial can be used to specify an arbitrary
27  subset of nodes.<p>
28
29  There are various methods for ordering the roots of a network, and for
30  ordering the nodes of a network.  These are explained in the documentation
31  for the static_order command.]
32 
33  Author      [Adnan Aziz, Tom Shiple, Serdar Tasiran]
34
35  Copyright   [Copyright (c) 1994-1996 The Regents of the Univ. of California.
36  All rights reserved.
37
38  Permission is hereby granted, without written agreement and without license
39  or royalty fees, to use, copy, modify, and distribute this software and its
40  documentation for any purpose, provided that the above copyright notice and
41  the following two paragraphs appear in all copies of this software.
42
43  IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
44  DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
45  OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
46  CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
47
48  THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
49  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
50  FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN
51  "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE
52  MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.]
53
54  Revision    [$Id: ord.h,v 1.10 2002/09/08 23:26:15 fabio Exp $]
55
56******************************************************************************/
57
58#ifndef _ORD
59#define _ORD
60
61/*---------------------------------------------------------------------------*/
62/* Nested includes                                                           */
63/*---------------------------------------------------------------------------*/
64#include <time.h>
65#include <math.h>
66#include "ntk.h"
67
68/*---------------------------------------------------------------------------*/
69/* Constant declarations                                                     */
70/*---------------------------------------------------------------------------*/
71
72
73/*---------------------------------------------------------------------------*/
74/* Type declarations                                                     */
75/*---------------------------------------------------------------------------*/
76/**Enum************************************************************************
77
78  Synopsis    [Used to specify particular subsets of network nodes.]
79
80  Description [Used to specify particular subsets of network nodes. This
81  enumerated type is used to specify which nodes are to be ordered, or which
82  nodes are supplied in an ordering file. "All" nodes of a network is exactly
83  the set returned by Ntk_NetworkReadNodes (this includes shadow nodes). ]
84
85  SeeAlso     [Ord_NetworkOrderVariables]
86
87******************************************************************************/
88typedef enum {
89  Ord_All_c,           /* all nodes in network */
90  Ord_NextStateNode_c, /* latch NS nodes */
91  Ord_Partial_c,       /* arbitrary subset of all nodes in network */
92  Ord_InputAndLatch_c, /* primary and pseudo inputs, latches, and latch NS */
93  Ord_Unassigned_c     /* not specified */
94} Ord_OrderType;
95
96
97/**Enum************************************************************************
98
99  Synopsis    [Used to specify a particular method to order the roots of a network.]
100
101  Description [Used to specify a particular method to order the roots of a
102  network.  The nodes of a network are explored in DFS order, starting from
103  the ordered list of roots.]
104
105  SeeAlso     [Ord_NetworkOrderRoots]
106
107******************************************************************************/
108typedef enum {
109  Ord_RootsByDepth_c,   /* decreasing order of logic depth */
110  Ord_RootsByPerm_c,    /* permutation that minimizes a communication-based
111                           cost function */
112  Ord_RootsByDefault_c  /* hardcoded default method (one of the above) */
113} Ord_RootMethod;
114
115
116/**Enum************************************************************************
117
118  Synopsis    [Used to specify a particular method to order the nodes of a network.]
119
120  Description [Used to specify a particular method to order the nodes of a
121  network.  These methods produce a total ordering on all of the nodes of a
122  network, including the next state nodes.]
123
124  SeeAlso     [Ord_NetworkOrderNodes]
125
126******************************************************************************/
127typedef enum {
128  Ord_NodesByInterleaving_c, /* Interleaving algorithm of Fujii et al. */
129  Ord_NodesByMergingLeft_c,  /* DFS by depth, merging left orderings of fanins */
130  Ord_NodesByMergingRight_c, /* DFS by depth, merging right orderings of fanins */
131  Ord_NodesByAppending_c,    /* DFS by depth, appending nodes as visited */
132  Ord_NodesByDefault_c       /* hardcoded default method (one of the above) */
133} Ord_NodeMethod;
134
135
136/**Enum************************************************************************
137
138  Synopsis    [Used to specify a particular method to merge two lists.]
139
140  SeeAlso     [Ord_ListMergeListUsingTable]
141
142******************************************************************************/
143typedef enum {
144  Ord_ListMergeLeft_c, /* merge left two lists */
145  Ord_ListMergeRight_c /* merge right two lists */
146} Ord_ListMergeMethod;
147
148
149/**AutomaticStart*************************************************************/
150
151/*---------------------------------------------------------------------------*/
152/* Function prototypes                                                       */
153/*---------------------------------------------------------------------------*/
154
155EXTERN void Ord_Init(void);
156EXTERN void Ord_End(void);
157EXTERN boolean Ord_NetworkTestAreVariablesOrdered(Ntk_Network_t * network, Ord_OrderType orderType);
158EXTERN int Ord_NetworkPrintVariableOrder(FILE * fp, Ntk_Network_t * network, Ord_OrderType orderType);
159EXTERN char ** Ord_NetworkGetCombInputNamesInOrder(Ntk_Network_t *network);
160EXTERN boolean Ord_FileReadNodeList(FILE * fp, Ntk_Network_t * network, lsList * nodeList, int verbose);
161EXTERN void Ord_NetworkOrderVariables(Ntk_Network_t *network, Ord_RootMethod rootOrderMethod, Ord_NodeMethod nodeOrderMethod, boolean nsAfterSupport, Ord_OrderType generatedOrderType, Ord_OrderType suppliedOrderType, lsList suppliedNodeList, int verbose);
162EXTERN lsList Ord_NetworkOrderNodes(Ntk_Network_t *network, Ord_RootMethod rootOrderMethod, Ord_NodeMethod nodeOrderMethod, boolean nsAfterSupport, Ord_OrderType generatedOrderType, Ord_OrderType suppliedOrderType, lsList suppliedNodeList, int verbose);
163EXTERN void Ord_NetworkAssignMddIdForNode(Ntk_Network_t *network, Ntk_Node_t *node);
164EXTERN void Ord_ListMergeLeftListUsingTable(lsList list1, lsList list2, st_table *dataToHandle1);
165EXTERN void Ord_ListMergeRightListUsingTable(lsList list1, lsList list2, st_table *dataToHandle1);
166EXTERN void Ord_ListMergeListUsingTable(lsList list1, lsList list2, st_table *dataToHandle1, Ord_ListMergeMethod method);
167EXTERN void Ord_ListAppendList(lsList list1, lsList list2);
168EXTERN void Ord_ListMergeList(lsList list1, lsList list2, Ord_ListMergeMethod method);
169EXTERN lsList Ord_NetworkOrderRoots(Ntk_Network_t *network, Ord_RootMethod rootMethod, lsList partialOrder, boolean verbose);
170
171/**AutomaticEnd***************************************************************/
172
173#endif /* _ORD */
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