1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
|
/**CFile***********************************************************************
FileName [cuddZddMisc.c]
PackageName [cudd]
Synopsis [.]
Description [External procedures included in this module:
<ul>
<li> Cudd_zddDagSize()
<li> Cudd_zddCountMinterm()
<li> Cudd_zddPrintSubtable()
</ul>
Internal procedures included in this module:
<ul>
</ul>
Static procedures included in this module:
<ul>
<li> cuddZddDagInt()
</ul>
]
SeeAlso []
Author [Hyong-Kyoon Shin, In-Ho Moon]
Copyright [ This file was created at the University of Colorado at
Boulder. The University of Colorado at Boulder makes no warranty
about the suitability of this software for any purpose. It is
presented on an AS IS basis.]
******************************************************************************/
#include <math.h>
#include "util_hack.h"
#include "cuddInt.h"
ABC_NAMESPACE_IMPL_START
/*---------------------------------------------------------------------------*/
/* Constant declarations */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* Stucture declarations */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* Type declarations */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* Variable declarations */
/*---------------------------------------------------------------------------*/
#ifndef lint
static char rcsid[] DD_UNUSED = "$Id: cuddZddMisc.c,v 1.1.1.1 2003/02/24 22:23:54 wjiang Exp $";
#endif
/*---------------------------------------------------------------------------*/
/* Macro declarations */
/*---------------------------------------------------------------------------*/
/**AutomaticStart*************************************************************/
/*---------------------------------------------------------------------------*/
/* Static function prototypes */
/*---------------------------------------------------------------------------*/
static int cuddZddDagInt ARGS((DdNode *n, st_table *tab));
/**AutomaticEnd***************************************************************/
/*---------------------------------------------------------------------------*/
/* Definition of exported functions */
/*---------------------------------------------------------------------------*/
/**Function********************************************************************
Synopsis [Counts the number of nodes in a ZDD.]
Description [Counts the number of nodes in a ZDD. This function
duplicates Cudd_DagSize and is only retained for compatibility.]
SideEffects [None]
SeeAlso [Cudd_DagSize]
******************************************************************************/
int
Cudd_zddDagSize(
DdNode * p_node)
{
int i;
st_table *table;
table = st_init_table(st_ptrcmp, st_ptrhash);
i = cuddZddDagInt(p_node, table);
st_free_table(table);
return(i);
} /* end of Cudd_zddDagSize */
/**Function********************************************************************
Synopsis [Counts the number of minterms of a ZDD.]
Description [Counts the number of minterms of the ZDD rooted at
<code>node</code>. This procedure takes a parameter
<code>path</code> that specifies how many variables are in the
support of the function. If the procedure runs out of memory, it
returns (double) CUDD_OUT_OF_MEM.]
SideEffects [None]
SeeAlso [Cudd_zddCountDouble]
******************************************************************************/
double
Cudd_zddCountMinterm(
DdManager * zdd,
DdNode * node,
int path)
{
double dc_var, minterms;
dc_var = (double)((double)(zdd->sizeZ) - (double)path);
minterms = Cudd_zddCountDouble(zdd, node) / pow(2.0, dc_var);
return(minterms);
} /* end of Cudd_zddCountMinterm */
/**Function********************************************************************
Synopsis [Prints the ZDD table.]
Description [Prints the ZDD table for debugging purposes.]
SideEffects [None]
SeeAlso []
******************************************************************************/
void
Cudd_zddPrintSubtable(
DdManager * table)
{
int i, j;
DdNode *z1, *z1_next, *base;
DdSubtable *ZSubTable;
base = table->one;
for (i = table->sizeZ - 1; i >= 0; i--) {
ZSubTable = &(table->subtableZ[i]);
printf("subtable[%d]:\n", i);
for (j = ZSubTable->slots - 1; j >= 0; j--) {
z1 = ZSubTable->nodelist[j];
while (z1 != NIL(DdNode)) {
(void) fprintf(table->out,
#if SIZEOF_VOID_P == 8
"ID = 0x%lx\tindex = %d\tr = %d\t",
(unsigned long) z1 / (unsigned long) sizeof(DdNode),
z1->index, z1->ref);
#else
"ID = 0x%x\tindex = %d\tr = %d\t",
(unsigned) z1 / (unsigned) sizeof(DdNode),
z1->index, z1->ref);
#endif
z1_next = cuddT(z1);
if (Cudd_IsConstant(z1_next)) {
(void) fprintf(table->out, "T = %d\t\t",
(z1_next == base));
}
else {
#if SIZEOF_VOID_P == 8
(void) fprintf(table->out, "T = 0x%lx\t",
(unsigned long) z1_next / (unsigned long) sizeof(DdNode));
#else
(void) fprintf(table->out, "T = 0x%x\t",
(unsigned) z1_next / (unsigned) sizeof(DdNode));
#endif
}
z1_next = cuddE(z1);
if (Cudd_IsConstant(z1_next)) {
(void) fprintf(table->out, "E = %d\n",
(z1_next == base));
}
else {
#if SIZEOF_VOID_P == 8
(void) fprintf(table->out, "E = 0x%lx\n",
(unsigned long) z1_next / (unsigned long) sizeof(DdNode));
#else
(void) fprintf(table->out, "E = 0x%x\n",
(unsigned) z1_next / (unsigned) sizeof(DdNode));
#endif
}
z1_next = z1->next;
z1 = z1_next;
}
}
}
putchar('\n');
} /* Cudd_zddPrintSubtable */
/*---------------------------------------------------------------------------*/
/* Definition of static functions */
/*---------------------------------------------------------------------------*/
/**Function********************************************************************
Synopsis [Performs the recursive step of Cudd_zddDagSize.]
Description [Performs the recursive step of Cudd_zddDagSize. Does
not check for out-of-memory conditions.]
SideEffects [None]
SeeAlso []
******************************************************************************/
static int
cuddZddDagInt(
DdNode * n,
st_table * tab)
{
if (n == NIL(DdNode))
return(0);
if (st_is_member(tab, (char *)n) == 1)
return(0);
if (Cudd_IsConstant(n))
return(0);
(void)st_insert(tab, (char *)n, NIL(char));
return(1 + cuddZddDagInt(cuddT(n), tab) +
cuddZddDagInt(cuddE(n), tab));
} /* cuddZddDagInt */
ABC_NAMESPACE_IMPL_END
|