blob: 355c0b56274ee7cd18db545c3a79db6ab51b79b3 (
plain)
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
|
/**CFile****************************************************************
FileName [mvcCube.c]
PackageName [MVSIS 2.0: Multi-valued logic synthesis system.]
Synopsis [Manipulating unate cubes.]
Author [MVSIS Group]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - February 1, 2003.]
Revision [$Id: mvcCube.c,v 1.4 2003/04/03 06:31:49 alanmi Exp $]
***********************************************************************/
#include "mvc.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Mvc_Cube_t * Mvc_CubeAlloc( Mvc_Cover_t * pCover )
{
Mvc_Cube_t * pCube;
assert( pCover->nWords >= 0 );
// allocate the cube
#ifdef USE_SYSTEM_MEMORY_MANAGEMENT
if ( pCover->nWords == 0 )
pCube = (Mvc_Cube_t *)ABC_ALLOC( char, sizeof(Mvc_Cube_t) );
else
pCube = (Mvc_Cube_t *)ABC_ALLOC( char, sizeof(Mvc_Cube_t) + sizeof(Mvc_CubeWord_t) * (pCover->nWords - 1) );
#else
switch( pCover->nWords )
{
case 0:
case 1:
pCube = (Mvc_Cube_t *)Extra_MmFixedEntryFetch( pCover->pMem->pMan1 );
break;
case 2:
pCube = (Mvc_Cube_t *)Extra_MmFixedEntryFetch( pCover->pMem->pMan2 );
break;
case 3:
case 4:
pCube = (Mvc_Cube_t *)Extra_MmFixedEntryFetch( pCover->pMem->pMan4 );
break;
default:
pCube = (Mvc_Cube_t *)ABC_ALLOC( char, sizeof(Mvc_Cube_t) + sizeof(Mvc_CubeWord_t) * (pCover->nWords - 1) );
break;
}
#endif
// set the parameters charactering this cube
if ( pCover->nWords == 0 )
pCube->iLast = pCover->nWords;
else
pCube->iLast = pCover->nWords - 1;
pCube->nUnused = pCover->nUnused;
return pCube;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Mvc_Cube_t * Mvc_CubeDup( Mvc_Cover_t * pCover, Mvc_Cube_t * pCube )
{
Mvc_Cube_t * pCubeCopy;
pCubeCopy = Mvc_CubeAlloc( pCover );
Mvc_CubeBitCopy( pCubeCopy, pCube );
return pCubeCopy;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Mvc_CubeFree( Mvc_Cover_t * pCover, Mvc_Cube_t * pCube )
{
if ( pCube == NULL )
return;
// verify the parameters charactering this cube
assert( pCube->iLast == 0 || ((int)pCube->iLast) == pCover->nWords - 1 );
assert( ((int)pCube->nUnused) == pCover->nUnused );
// deallocate the cube
#ifdef USE_SYSTEM_MEMORY_MANAGEMENT
ABC_FREE( pCube );
#else
switch( pCover->nWords )
{
case 0:
case 1:
Extra_MmFixedEntryRecycle( pCover->pMem->pMan1, (char *)pCube );
break;
case 2:
Extra_MmFixedEntryRecycle( pCover->pMem->pMan2, (char *)pCube );
break;
case 3:
case 4:
Extra_MmFixedEntryRecycle( pCover->pMem->pMan4, (char *)pCube );
break;
default:
ABC_FREE( pCube );
break;
}
#endif
}
/**Function*************************************************************
Synopsis [Removes the don't-care variable from the cube.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Mvc_CubeBitRemoveDcs( Mvc_Cube_t * pCube )
{
unsigned Mask;
int i;
for ( i = Mvc_CubeReadLast(pCube); i >= 0; i-- )
{
// detect those variables that are different (not DCs)
Mask = (pCube->pData[i] ^ (pCube->pData[i] >> 1)) & BITS_DISJOINT;
// create the mask of all that are different
Mask |= (Mask << 1);
// remove other bits from the set
pCube->pData[i] &= Mask;
}
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
