-
Notifications
You must be signed in to change notification settings - Fork 4
/
mul8_019.c
287 lines (282 loc) · 7.06 KB
/
mul8_019.c
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
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
/***
* This code is a part of EvoApproxLib library (ehw.fit.vutbr.cz/approxlib) distributed under The MIT License.
* When used, please cite the following article(s): V. Mrazek, R. Hrbacek, Z. Vasicek and L. Sekanina, "EvoApprox8b: Library of approximate adders and multipliers for circuit design and benchmarking of approximation methods". Design, Automation & Test in Europe Conference & Exhibition (DATE), 2017, Lausanne, 2017, pp. 258-261. doi: 10.23919/DATE.2017.7926993
* This file contains a circuit from evoapprox8b dataset. Note that a new version of library was already published.
***/
#include <stdint.h>
#include <stdlib.h>
/// Approximate function mul8_019
/// Library = EvoApprox8b
/// Circuit = mul8_019
/// Area (180) = 4636
/// Delay (180) = 2.570
/// Power (180) = 1655.40
/// Area (45) = 332
/// Delay (45) = 0.990
/// Power (45) = 140.70
/// Nodes = 90
/// HD = 368938
/// MAE = 496.45783
/// MSE = 436400.62109
/// MRE = 8.78 %
/// WCE = 3075
/// WCRE = 700 %
/// EP = 99.0 %
uint16_t mul8_019(uint8_t a, uint8_t b)
{
uint16_t c = 0;
uint8_t n0 = (a >> 0) & 0x1;
uint8_t n2 = (a >> 1) & 0x1;
uint8_t n4 = (a >> 2) & 0x1;
uint8_t n6 = (a >> 3) & 0x1;
uint8_t n8 = (a >> 4) & 0x1;
uint8_t n10 = (a >> 5) & 0x1;
uint8_t n12 = (a >> 6) & 0x1;
uint8_t n14 = (a >> 7) & 0x1;
uint8_t n18 = (b >> 1) & 0x1;
uint8_t n20 = (b >> 2) & 0x1;
uint8_t n22 = (b >> 3) & 0x1;
uint8_t n24 = (b >> 4) & 0x1;
uint8_t n26 = (b >> 5) & 0x1;
uint8_t n28 = (b >> 6) & 0x1;
uint8_t n30 = (b >> 7) & 0x1;
uint8_t n33;
uint8_t n34;
uint8_t n37;
uint8_t n38;
uint8_t n41;
uint8_t n42;
uint8_t n45;
uint8_t n54;
uint8_t n62;
uint8_t n71;
uint8_t n81;
uint8_t n82;
uint8_t n83;
uint8_t n87;
uint8_t n89;
uint8_t n91;
uint8_t n121;
uint8_t n125;
uint8_t n157;
uint8_t n161;
uint8_t n190;
uint8_t n191;
uint8_t n196;
uint8_t n345;
uint8_t n372;
uint8_t n386;
uint8_t n420;
uint8_t n460;
uint8_t n476;
uint8_t n491;
uint8_t n506;
uint8_t n557;
uint8_t n564;
uint8_t n580;
uint8_t n594;
uint8_t n608;
uint8_t n683;
uint8_t n699;
uint8_t n712;
uint8_t n728;
uint8_t n761;
uint8_t n786;
uint8_t n802;
uint8_t n816;
uint8_t n832;
uint8_t n846;
uint8_t n847;
uint8_t n890;
uint8_t n906;
uint8_t n920;
uint8_t n934;
uint8_t n950;
uint8_t n964;
uint8_t n1034;
uint8_t n1107;
uint8_t n1173;
uint8_t n1186;
uint8_t n1187;
uint8_t n1202;
uint8_t n1203;
uint8_t n1216;
uint8_t n1232;
uint8_t n1246;
uint8_t n1350;
uint8_t n1351;
uint8_t n1408;
uint8_t n1424;
uint8_t n1425;
uint8_t n1438;
uint8_t n1439;
uint8_t n1454;
uint8_t n1455;
uint8_t n1468;
uint8_t n1482;
uint8_t n1483;
uint8_t n1538;
uint8_t n1542;
uint8_t n1543;
uint8_t n1586;
uint8_t n1587;
uint8_t n1602;
uint8_t n1603;
uint8_t n1616;
uint8_t n1632;
uint8_t n1646;
uint8_t n1660;
uint8_t n1720;
uint8_t n1750;
uint8_t n1764;
uint8_t n1765;
uint8_t n1780;
uint8_t n1781;
uint8_t n1794;
uint8_t n1795;
uint8_t n1808;
uint8_t n1809;
uint8_t n1824;
uint8_t n1838;
uint8_t n1882;
uint8_t n1898;
uint8_t n1912;
uint8_t n1928;
uint8_t n1942;
uint8_t n1943;
uint8_t n1956;
uint8_t n1957;
uint8_t n1972;
uint8_t n1973;
uint8_t n1986;
uint8_t n1987;
uint8_t n2016;
n33 = n18 & n14;
n34 = ~(n18 | n28 | n14);
n37 = n33;
n38 = ~(n6 | n0 | n2);
n41 = ~(n12 ^ n12);
n42 = (n6 & n34) | (~n6 & n41);
n45 = n37 & n4;
n54 = ~(n2 | n8 | n45);
n62 = ~n41;
n71 = n14 | n8;
n81 = n41 ^ n38;
n82 = ~(n6 | n4 | n71);
n83 = ~(n6 | n4 | n71);
n87 = n26 | n24;
n89 = ~(n81 & n28 & n83);
n91 = ~(n87 | n28 | n22);
n121 = ~(n41 | n54);
n125 = ~n41;
n157 = ~((n89 & n82) | n91);
n161 = n18 & n12;
n190 = ~n125;
n191 = ~n125;
n196 = ~(n121 & n34);
n345 = ~(n2 & n62);
n372 = n14 & n20;
n386 = n6 & n196;
n420 = n26 & n386;
n460 = n10 & n22;
n476 = n12 & n22;
n491 = n14 & n22;
n506 = n0 & n20;
n557 = n45 & n42;
n564 = n8 & n24;
n580 = n10 & n24;
n594 = n12 & n24;
n608 = n14 & n24;
n683 = n8 & n26;
n699 = n10 & n26;
n712 = n12 & n26;
n728 = n14 & n26;
n761 = ~n345;
n786 = n6 & n28;
n802 = n8 & n28;
n816 = n10 & n28;
n832 = n12 & n28;
n846 = n14 & n28;
n847 = n14 & n28;
n890 = n4 & n30;
n906 = n6 & n30;
n920 = n8 & n30;
n934 = n10 & n30;
n950 = n12 & n30;
n964 = n14 & n30;
n1034 = n2;
n1107 = n491;
n1173 = n460 | n564;
n1186 = n476 ^ n580;
n1187 = n476 & n580;
n1202 = (n1107 ^ n594) ^ n699;
n1203 = (n1107 & n594) | (n594 & n699) | (n1107 & n699);
n1216 = n608 & n712;
n1232 = n608 ^ n712;
n1246 = ~(n191 | n1034);
n1350 = (n372 ^ n420) ^ n1186;
n1351 = (n372 & n420) | (n420 & n1186) | (n372 & n1186);
n1408 = n1173 | n786;
n1424 = (n1187 ^ n802) ^ n906;
n1425 = (n1187 & n802) | (n802 & n906) | (n1187 & n906);
n1438 = (n1203 ^ n816) ^ n920;
n1439 = (n1203 & n816) | (n816 & n920) | (n1203 & n920);
n1454 = (n1216 ^ n832) ^ n934;
n1455 = (n1216 & n832) | (n832 & n934) | (n1216 & n934);
n1468 = n846 & n950;
n1482 = n847 ^ n950;
n1483 = n847 & n950;
n1538 = n1483;
n1542 = n157;
n1543 = n157;
n1586 = (n1350 ^ n1246) ^ n1408;
n1587 = (n1350 & n1246) | (n1246 & n1408) | (n1350 & n1408);
n1602 = (n1202 ^ n1216) ^ n1424;
n1603 = (n1202 & n1216) | (n1216 & n1424) | (n1202 & n1424);
n1616 = n1232 & n1438;
n1632 = n1232 ^ n1438;
n1646 = n728 & n1454;
n1660 = n728 ^ n1454;
n1720 = n1425 ^ n1543;
n1750 = n1586 | n890;
n1764 = (n1602 ^ n1587) ^ n1351;
n1765 = (n1602 & n1587) | (n1587 & n1351) | (n1602 & n1351);
n1780 = (n1632 ^ n1603) ^ n1425;
n1781 = (n1632 & n1603) | (n1603 & n1425) | (n1632 & n1425);
n1794 = (n1660 ^ n1616) ^ n1439;
n1795 = (n1660 & n1616) | (n1616 & n1439) | (n1660 & n1439);
n1808 = (n1482 ^ n1646) ^ n1455;
n1809 = (n1482 & n1646) | (n1646 & n1455) | (n1482 & n1455);
n1824 = n345 & n1468;
n1838 = n964 ^ n1538;
n1882 = n1720;
n1898 = n161 | n890;
n1912 = (n683 & n190) | (~n683 & n1750);
n1928 = n1764;
n1942 = n1780 ^ n1765;
n1943 = n1780 & n1765;
n1956 = (n1794 ^ n1781) ^ n1943;
n1957 = (n1794 & n1781) | (n1781 & n1943) | (n1794 & n1943);
n1972 = (n1808 ^ n1795) ^ n1957;
n1973 = (n1808 & n1795) | (n1795 & n1957) | (n1808 & n1957);
n1986 = (n1838 ^ n1809) ^ n1973;
n1987 = (n1838 & n1809) | (n1809 & n1973) | (n1838 & n1973);
n2016 = n1824 | n1987;
c |= (n761 & 0x1) << 0;
c |= (n1542 & 0x1) << 1;
c |= (n1246 & 0x1) << 2;
c |= (n1216 & 0x1) << 3;
c |= (n557 & 0x1) << 4;
c |= (n506 & 0x1) << 5;
c |= (n1543 & 0x1) << 6;
c |= (n1882 & 0x1) << 7;
c |= (n1898 & 0x1) << 8;
c |= (n1912 & 0x1) << 9;
c |= (n1928 & 0x1) << 10;
c |= (n1942 & 0x1) << 11;
c |= (n1956 & 0x1) << 12;
c |= (n1972 & 0x1) << 13;
c |= (n1986 & 0x1) << 14;
c |= (n2016 & 0x1) << 15;
return c;
}