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
|
/**CFile****************************************************************
FileName [gia.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis []
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: gia.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
typedef struct Slv_Man_t_ Slv_Man_t;
struct Slv_Man_t_
{
Vec_Int_t vCis;
Vec_Int_t vCos;
Vec_Int_t vFanins;
Vec_Int_t vFanoutN;
Vec_Int_t vFanout0;
Vec_Str_t vValues;
Vec_Int_t vCopies;
};
static inline int Slv_ManObjNum ( Slv_Man_t * p ) { return Vec_IntSize(&p->vFanins)/2; }
static inline int Slv_ObjFaninLit ( Slv_Man_t * p, int iObj, int f ) { return Vec_IntEntry(&p->vFanins, Abc_Var2Lit(iObj, f)); }
static inline int Slv_ObjFanin ( Slv_Man_t * p, int iObj, int f ) { return Abc_Lit2Var(Slv_ObjFaninLit(p, iObj, f)); }
static inline int Slv_ObjFaninC ( Slv_Man_t * p, int iObj, int f ) { return Abc_LitIsCompl(Slv_ObjFaninLit(p, iObj, f)); }
static inline int Slv_ObjIsCi ( Slv_Man_t * p, int iObj ) { return !Slv_ObjFaninLit(p, iObj, 0) && Slv_ObjFaninLit(p, iObj, 1); }
static inline int Slv_ObjIsCo ( Slv_Man_t * p, int iObj ) { return Slv_ObjFaninLit(p, iObj, 0) && !Slv_ObjFaninLit(p, iObj, 1); }
static inline int Slv_ObjIsAnd ( Slv_Man_t * p, int iObj ) { return Slv_ObjFaninLit(p, iObj, 0) && Slv_ObjFaninLit(p, iObj, 1); }
static inline int Slv_ObjFanout0 ( Slv_Man_t * p, int iObj ) { return Vec_IntEntry(&p->vFanout0, iObj); }
static inline void Slv_ObjSetFanout0 ( Slv_Man_t * p, int iObj, int iLit ) { Vec_IntWriteEntry(&p->vFanout0, iObj, iLit); }
static inline int Slv_ObjNextFanout ( Slv_Man_t * p, int iLit ) { return Vec_IntEntry(&p->vFanoutN, iLit); }
static inline void Slv_ObjSetNextFanout( Slv_Man_t * p, int iLit, int iLitF ) { Vec_IntWriteEntry(&p->vFanoutN, iLit, iLitF); }
static inline int Slv_ObjCopyLit ( Slv_Man_t * p, int iObj ) { return Vec_IntEntry(&p->vCopies, iObj); }
static inline void Slv_ObjSetCopyLit ( Slv_Man_t * p, int iObj, int iLit ) { Vec_IntWriteEntry(&p->vCopies, iObj, iLit); }
#define Slv_ManForEachObj( p, iObj ) \
for ( iObj = 1; iObj < Slv_ManObjNum(p); iObj++ )
#define Slv_ObjForEachFanout( p, iObj, iFanLit ) \
for ( iFanLit = Slv_ObjFanout0(p, iObj); iFanLit; iFanLit = Slv_ObjNextFanout(p, iFanLit) )
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Slv_Man_t * Slv_ManAlloc( int nObjs )
{
Slv_Man_t * p = ABC_CALLOC( Slv_Man_t, 1 );
Vec_IntGrow( &p->vCis, 100 );
Vec_IntGrow( &p->vCos, 100 );
Vec_IntGrow( &p->vFanins, 2*nObjs );
Vec_IntGrow( &p->vFanoutN, 2*nObjs );
Vec_IntGrow( &p->vFanout0, nObjs );
Vec_StrGrow( &p->vValues, nObjs );
// constant node
Vec_IntFill( &p->vFanins, 2, 0 );
Vec_IntFill( &p->vFanoutN, 2, 0 );
Vec_IntFill( &p->vFanout0, 1, 0 );
return p;
}
void Slv_ManFree( Slv_Man_t * p )
{
Vec_IntErase( &p->vCis );
Vec_IntErase( &p->vCos );
Vec_IntErase( &p->vFanins );
Vec_IntErase( &p->vFanoutN );
Vec_IntErase( &p->vFanout0 );
Vec_StrErase( &p->vValues );
Vec_IntErase( &p->vCopies );
ABC_FREE( p );
}
void Slv_ManPrintFanouts( Slv_Man_t * p )
{
int iObj, iFanLit;
Slv_ManForEachObj( p, iObj )
{
printf( "Fanouts of node %d: ", iObj );
Slv_ObjForEachFanout( p, iObj, iFanLit )
printf( "%d ", Abc_Lit2Var(iFanLit) );
printf( "\n" );
}
}
static inline int Slv_ManAppendObj( Slv_Man_t * p, int iLit0, int iLit1 )
{
int iObj = Slv_ManObjNum(p);
Vec_StrPush( &p->vValues, 0 );
Vec_IntPush( &p->vFanout0, 0 );
Vec_IntPushTwo( &p->vFanoutN, 0, 0 );
if ( !iLit0 ) // primary input
assert(!iLit1), iLit1 = Vec_IntSize(&p->vCis)+1, Vec_IntPush(&p->vCis, iObj);
else if ( !iLit1 ) // primary output
assert(iLit0), Vec_IntPush(&p->vCos, iObj);
else
{
Slv_ObjSetNextFanout( p, Abc_Var2Lit(iObj, 0), Slv_ObjFanout0(p, Abc_Lit2Var(iLit0)) );
Slv_ObjSetNextFanout( p, Abc_Var2Lit(iObj, 1), Slv_ObjFanout0(p, Abc_Lit2Var(iLit1)) );
Slv_ObjSetFanout0( p, Abc_Lit2Var(iLit0), Abc_Var2Lit(iObj, 0) );
Slv_ObjSetFanout0( p, Abc_Lit2Var(iLit1), Abc_Var2Lit(iObj, 1) );
}
Vec_IntPushTwo( &p->vFanins, iLit0, iLit1 );
return Abc_Var2Lit( iObj, 0 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Slv_Man_t * Slv_ManFromGia( Gia_Man_t * p )
{
Gia_Obj_t * pObj; int i;
Slv_Man_t * pNew = Slv_ManAlloc( Gia_ManObjNum(p) );
Gia_ManConst0(p)->Value = 0;
Gia_ManForEachObj1( p, pObj, i )
{
if ( Gia_ObjIsAnd(pObj) )
pObj->Value = Slv_ManAppendObj( pNew, Abc_LitNotCond(Gia_ObjFanin0(pObj)->Value, Gia_ObjFaninC0(pObj)), Abc_LitNotCond(Gia_ObjFanin1(pObj)->Value, Gia_ObjFaninC1(pObj)) );
else if ( Gia_ObjIsCo(pObj) )
pObj->Value = Slv_ManAppendObj( pNew, Abc_LitNotCond(Gia_ObjFanin0(pObj)->Value, Gia_ObjFaninC0(pObj)), 0 );
else if ( Gia_ObjIsCi(pObj) )
pObj->Value = Slv_ManAppendObj( pNew, 0, 0 );
else
assert( 0 );
}
assert( Gia_ManObjNum(p) == Slv_ManObjNum(pNew) );
return pNew;
}
Gia_Man_t * Slv_ManToGia( Slv_Man_t * p )
{
int iObj;
Gia_Man_t * pNew = Gia_ManStart( Slv_ManObjNum(p) );
Vec_IntFill( &p->vCopies, Slv_ManObjNum(p), 0 );
Slv_ManForEachObj( p, iObj )
if ( Slv_ObjIsCi(p, iObj) )
Slv_ObjSetCopyLit( p, iObj, Gia_ManAppendCi(pNew) );
else if ( Slv_ObjIsCo(p, iObj) )
{
int iLit0 = Abc_LitNotCond( Slv_ObjCopyLit(p, Slv_ObjFanin(p, iObj, 0)), Slv_ObjFaninC(p, iObj, 0) );
Slv_ObjSetCopyLit( p, iObj, Gia_ManAppendCo(pNew, iLit0) );
}
else if ( Slv_ObjIsAnd(p, iObj) )
{
int iLit0 = Abc_LitNotCond( Slv_ObjCopyLit(p, Slv_ObjFanin(p, iObj, 0)), Slv_ObjFaninC(p, iObj, 0) );
int iLit1 = Abc_LitNotCond( Slv_ObjCopyLit(p, Slv_ObjFanin(p, iObj, 1)), Slv_ObjFaninC(p, iObj, 1) );
Slv_ObjSetCopyLit( p, iObj, Gia_ManAppendAnd(pNew, iLit0, iLit1) );
}
else assert(0);
assert( Gia_ManObjNum(pNew) == Slv_ManObjNum(p) );
return pNew;
}
Gia_Man_t * Slv_ManToAig( Gia_Man_t * pGia )
{
Slv_Man_t * p = Slv_ManFromGia( pGia );
Gia_Man_t * pNew = Slv_ManToGia( p );
pNew->pName = Abc_UtilStrsav( pGia->pName );
pNew->pSpec = Abc_UtilStrsav( pGia->pSpec );
Slv_ManPrintFanouts( p );
Slv_ManFree( p );
return pNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
