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
|
#include <stdint.h>
#include <vector>
#include <string>
#include <unordered_set>
#include <unordered_map>
// replace with proper IdString later
typedef std::string IdString;
// replace with haslib later
template<typename T> using pool = std::unordered_set<T>;
template<typename T, typename U> using dict = std::unordered_map<T, U>;
using std::vector;
// -------------------------------------------------------
// Arch-specific declarations
struct BelId
{
uint8_t tile_x = 0, tile_y = 0;
uint16_t index = 0;
bool nil() const {
return !tile_x && !tile_y && !index;
}
} __attribute__((packed));
struct WireId
{
uint8_t tile_x = 0, tile_y = 0;
uint16_t index = 0;
bool nil() const {
return !tile_x && !tile_y && !index;
}
} __attribute__((packed));
namespace std
{
template<> struct hash<BelId>
{
std::size_t operator()(const BelId &bel) const noexcept
{
std::size_t result = std::hash<int>{}(bel.index);
result ^= std::hash<int>{}(bel.tile_x) + 0x9e3779b9 + (result << 6) + (result >> 2);
result ^= std::hash<int>{}(bel.tile_y) + 0x9e3779b9 + (result << 6) + (result >> 2);
return result;
}
};
template<> struct hash<WireId>
{
std::size_t operator()(const WireId &wire) const noexcept
{
std::size_t result = std::hash<int>{}(wire.index);
result ^= std::hash<int>{}(wire.tile_x) + 0x9e3779b9 + (result << 6) + (result >> 2);
result ^= std::hash<int>{}(wire.tile_y) + 0x9e3779b9 + (result << 6) + (result >> 2);
return result;
}
};
}
struct BelIterator
{
BelId *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const BelIterator &other) const { return ptr != other.ptr; }
BelId operator*() const { return *ptr; }
};
struct BelRange
{
BelIterator b, e;
BelIterator begin() const { return b; }
BelIterator end() const { return e; }
};
struct WireIterator
{
WireId *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const WireIterator &other) const { return ptr != other.ptr; }
WireId operator*() const { return *ptr; }
};
struct WireRange
{
WireIterator b, e;
WireIterator begin() const { return b; }
WireIterator end() const { return e; }
};
struct WireDelay
{
WireId wire;
float delay;
};
struct WireDelayIterator
{
WireDelay *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const WireDelayIterator &other) const { return ptr != other.ptr; }
WireDelay operator*() const { return *ptr; }
};
struct WireDelayRange
{
WireDelayIterator b, e;
WireDelayIterator begin() const { return b; }
WireDelayIterator end() const { return e; }
};
struct BelPin
{
BelId bel;
IdString pin;
};
struct BelPinIterator
{
BelPin *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const BelPinIterator &other) const { return ptr != other.ptr; }
BelPin operator*() const { return *ptr; }
};
struct BelPinRange
{
BelPinIterator b, e;
BelPinIterator begin() const { return b; }
BelPinIterator end() const { return e; }
};
struct GuiLine
{
float x1, y1, x2, y2;
};
struct ChipArgs
{
// ...
};
struct Chip
{
// ...
Chip(ChipArgs args);
void setBelActive(BelId bel, bool active);
bool getBelActive(BelId bel);
BelId getBelByName(IdString name) const;
WireId getWireByName(IdString name) const;
IdString getBelName(BelId bel) const;
IdString getWireName(WireId wire) const;
BelRange getBels() const;
BelRange getBelsByType(IdString type) const;
IdString getBelType(BelId bel) const;
void getBelPosition(BelId bel, float &x, float &y) const;
void getWirePosition(WireId wire, float &x, float &y) const;
vector<GuiLine> getBelGuiLines(BelId bel) const;
vector<GuiLine> getWireGuiLines(WireId wire) const;
WireRange getWires() const;
WireDelayRange getWiresUphill(WireId wire) const;
WireDelayRange getWiresDownhill(WireId wire) const;
WireDelayRange getWiresBidir(WireId wire) const;
WireDelayRange getWireAliases(WireId wire) const;
// the following will only operate on / return "active" BELs
// multiple active uphill BELs for a wire will cause a runtime error
WireId getWireBelPin(BelId bel, IdString pin) const;
BelPin getBelPinUphill(WireId wire) const;
BelPinRange getBelPinsDownhill(WireId wire) const;
};
// -------------------------------------------------------
// Generic declarations
struct CellInfo;
struct PortRef
{
CellInfo *cell;
IdString port;
};
struct NetInfo
{
IdString name;
PortRef driver;
vector<PortRef> users;
dict<IdString, std::string> attrs;
// wire -> (uphill_wire, delay)
dict<WireId, std::pair<WireId, float>> wires;
};
enum PortType
{
PORT_IN = 0,
PORT_OUT = 1,
PORT_INOUT = 2
};
struct PortInfo
{
IdString name;
NetInfo *net;
PortType type;
};
struct CellInfo
{
IdString name, type;
dict<IdString, PortInfo> ports;
dict<IdString, std::string> attrs, params;
BelId bel;
// cell_port -> bel_pin
dict<IdString, IdString> pins;
};
struct Design
{
struct Chip chip;
Design(ChipArgs args) : chip(args) {
// ...
}
dict<IdString, NetInfo*> nets;
dict<IdString, CellInfo*> cells;
};
|
